Accurate and efficient seeding device for small seed border field

By designing a precision and efficient seeding device for small-seed beds, using rollers and modular arc-shaped seeding plates, the problems of uneven seeding and uneven seedling emergence of small seeds have been solved, achieving efficient seeding and uniform seedling emergence, thus improving planting efficiency and economic benefits.

CN224165167UActive Publication Date: 2026-04-28梅河口市园艺特产工作站
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
梅河口市园艺特产工作站
Filing Date
2025-05-08
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing technologies for small-seed vegetables suffer from uneven sowing, seed waste, time-consuming and labor-intensive thinning, and uneven emergence when grown in raised beds. This is especially true when grown in large-scale greenhouses, where efficiency is low and economic performance is reduced.

Method used

A precision and efficient seeding device for small-grained fields was designed, consisting of a roller, a seeding cylinder, and a U-shaped towing frame. Utilizing the principle of gravity, it achieves precise and efficient seeding of small-grained seeds through modular arc-shaped seeding plates and anti-slip needles.

Benefits of technology

It enables precise and efficient sowing of small seeds, resulting in uniform seedling emergence, simplifying the thinning process, and improving sowing efficiency and economic benefits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a small seed ridged field accurate and efficient seeding device, which mainly comprises a roller, a seeding cylinder and a u-shaped dragging frame, two ends of the roller are provided with a flower shaft frame, a rolling shaft and a cylinder with a radial opening, the seeding cylinder is internally provided with a plurality of seed bins, outer rings of two ends of the seeding cylinder are provided with hoops and an arc-shaped seeding insertion plate with seeding holes, and the U-shaped dragging frame is provided with a U-shaped dragging frame. The seeding cylinder is fixed in the roller, the direction of the seeding cylinder is consistent with that of an opening of the roller, and two straight edges of the u-shaped dragging frame are movably connected to two ends of the rolling shaft. The ridge-bordered small seed sowing machine is simple in structure, high in seeding efficiency, tidy in seedling emergence, capable of simplifying a thinning link, labor-saving, beneficial to accurate and efficient seeding of ridge-bordered small seeds, and wide in application prospect.
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Description

Technical Field

[0001] This invention relates to an agricultural and horticultural tool, specifically a device for precise and efficient sowing of small seeds in seedbeds. Background Technology

[0002] To improve planting efficiency and facilitate management, especially for small-seed vegetables, farmers often use raised beds (or flat beds) for vegetable cultivation. Common sowing methods for raised bed vegetable cultivation include row sowing or broadcast sowing. While this is acceptable for small areas, these methods present several problems for larger planting areas: uneven sowing, seed waste, time-consuming and labor-intensive thinning, and uneven emergence and growth. These problems directly lead to low efficiency and reduced economic performance, especially in large-scale greenhouse vegetable cultivation. Therefore, precise and efficient raised bed sowing devices have many applicable scenarios and needs. Summary of the Invention

[0003] To address the aforementioned problems, this invention aims to provide a device for precise and efficient sowing of small-seed vegetables in flatbed cultivation. The technical solution is as follows: a precise and efficient sowing device for small-seed vegetables in flatbed cultivation, mainly composed of a roller, a sowing cylinder, and a U-shaped drag frame. The roller is characterized by being a cylinder with a diameter similar to the row spacing of typical sown varieties, flower axis frames at both ends, a rolling shaft longer than the roller passing through the middle, and a radially open opening between the two ends; the sowing cylinder is slightly shorter than the roller in length, with several [plants / seeds] arranged inside its diameter. The cylinder consists of several seed bins evenly spaced by identical circular partitions, each corresponding to the plant spacing of the vegetable variety being sown. It has a through opening in the radial direction with an eight-shaped end face, and hoops around both ends. It also has an arc-shaped sowing plate with a wedge-shaped end face that matches the through opening and has a sowing hole corresponding to the center of the seed bin. The sowing cylinder is fixed inside the cylinder by fixing springs on both sides of the opening inside the cylinder, and the sowing hole is aligned with the direction of the opening. The two straight sides of the U-shaped drag frame are movably connected to both ends of the rolling shaft.

[0004] To improve the accuracy of sowing, a rounded bevel hole larger than the sowing hole is made inside the arc-shaped sowing insert plate at the position of the sowing hole;

[0005] To accommodate different small seeds, the curved seeding plate is designed as a modular curved seeding plate with different seeding hole sizes but the same shape. Different modular curved seeding plates are used depending on the different varieties being sown.

[0006] To prevent the roller from slipping and becoming dragged, several anti-slip pins can be evenly placed on the roller surface.

[0007] This invention primarily addresses the challenges of precise and efficient sowing and thinning of small seeds. It utilizes a rolling device and gravity to achieve precise and efficient sowing of small seeds. The invention features a simple structure, high sowing efficiency, uniform seedling emergence, streamlined thinning process, and reduced labor and effort. It is beneficial for precise and efficient sowing of small seeds in seedbeds and has broad application prospects. Attached Figure Description

[0008] Figure 1 A front view schematic diagram of a precision and efficient device for small-grain seed paddy fields;

[0009] Figure 2 A side view schematic diagram of a precision and efficient device for small-grain seed paddy fields;

[0010] Figure 3 A front view schematic diagram of a roller in a precision and efficient device for small-grain seed paddy fields;

[0011] Figure 4 A partial front view of the seeding cylinder of a precision and efficient device for small-grain seed planting in seedbeds;

[0012] Figure 5 A rear view schematic diagram of an arc-shaped sowing plate for a precision and efficient small-seed field planting device.

[0013] Figure 6 A side view of a seeding cylinder for a precision and efficient small-seed field planting device;

[0014] Reference numerals: 1. Roller; 2. Seeding cylinder; 3. U-shaped trailing frame; 4. Flower shaft frame; 5. Rolling shaft; 6. Opening; 7. Circular partition; 8. Seed bin; 9. Arc-shaped seeding insert; 10. Seeding hole; 11. Hoop; 12. Elastic fixing piece; 13. Circular sloping hole; 14. Anti-slip pin. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, outlining exemplary implementations according to this application. However, these exemplary implementations may be practiced in many different forms and should not be construed as being limited to the implementations set forth herein. It should be understood that these implementations are provided so that this disclosure is thorough and complete, and that the concept of these exemplary implementations is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions has been enlarged, and the same reference numerals are used to denote the same devices; therefore, descriptions of them will be omitted.

[0016] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. For ease of description, spatial relative terms such as "at both ends," "on both sides," "figure-eight," etc., may be used herein to describe the spatial positional relationship between one device or feature and other devices or features as shown in the figures.

[0017] See Figure 1 , Figure 2 , Figure 3 As can be seen, a precision and efficient seeding device for small-grain seed beds mainly consists of a roller 1, a seeding cylinder 2, and a U-shaped drag frame 3. The roller 1 is a cylinder with a diameter similar to the row spacing of a typical seeding variety, flower shaft frames 4 at both ends, a rolling shaft 5 passing through the middle, and a radial open opening 6 between the two ends. In order to prevent the roller from slipping and causing it to lose rotation due to dragging, several anti-slip pins 14 can be evenly arranged on the surface of the roller.

[0018] See Figure 1 , Figure 4 , Figure 6 As can be seen, the sowing cylinder 2 is a cylinder consisting of several seed bins 8 that are slightly shorter than the length of the drum, and are formed by several identical circular partitions 7 that are evenly spaced to match the plant spacing of the sown variety. It has a through opening with an eight-shaped end face in the radial direction, and sleeves 11 at both ends of the outer ring. It also has an arc-shaped sowing plate 9 with a wedge-shaped end face that matches the through opening and has a sowing hole 10 corresponding to the center of the seed bin. The sowing cylinder 2 is fixed inside the drum by fixing spring pieces 12 provided on both sides of the opening inside the drum, and the sowing hole corresponds to the direction of the drum opening. The two straight sides of the U-shaped drag frame are movably connected to both ends of the rolling shaft.

[0019] See Figure 5 It can be seen that, in order to improve the sowing accuracy, a round sloping hole 13 larger than the sowing hole is opened at the position of the sowing hole inside the arc-shaped sowing insert plate;

[0020] When using this invention, first pull out the arc-shaped sowing plate, fill the seed chamber with small vegetable seeds, then select a suitable arc-shaped sowing plate and insert it between the outer rings of the sowing cylinder. Pull the towing frame at one end of the seedbed to complete the simple, convenient and precise sowing operation.

[0021] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. 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 precision and efficient seeding device for small-grain seedbeds, mainly composed of a roller, a seeding cylinder, and a U-shaped towing frame, characterized in that: The drum is a cylinder with a diameter similar to the row spacing of a typical sown variety, flower shaft frames at both ends, a rolling shaft longer than the drum passing through the middle, and a radial opening between the two ends. The sowing cylinder is a cylinder slightly shorter than the drum, with several seed chambers inside the diameter, each uniformly separated by identical circular partitions to match the plant spacing of the sown vegetable variety. It has a through opening in the radial direction with an eight-shaped end face, sleeves around both ends, and an arc-shaped sowing plate with a wedge-shaped end face that matches the through opening and has sowing holes corresponding to the center of the seed chambers. The sowing cylinder is fixed inside the drum by fixing springs on both sides of the opening inside the drum, and the sowing holes are aligned with the direction of the opening. The two straight sides of the U-shaped drag frame are movably connected to both ends of the rolling shaft.

2. The precision and efficient seeding device for small-grain seedbeds according to claim 1, characterized in that: Several anti-slip pins are evenly distributed on the surface of the roller.

3. The precision and efficient seeding device for small-grain seedbeds according to claim 1, characterized in that: Inside the arc-shaped seeding plate, at the position of the seeding hole, there is a round sloping hole larger than the seeding hole.