Buckwheat seed screening and sowing combined device

By designing a combined buckwheat seed screening and sowing device, the problem of impurities affecting sowing uniformity in existing equipment has been solved, realizing automated screening and sowing, and improving sowing efficiency and quality.

CN224025659UActive Publication Date: 2026-03-24赤峰市农牧科学院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing buckwheat seed sowing equipment lacks a screening function, which leads to impurities being mixed in and affecting the uniformity of sowing.

Method used

A combined buckwheat seed screening and sowing device was designed, comprising a screening component and a transmission component. The screening component removes impurities, and the transmission component enables automated sowing.

Benefits of technology

It improves the sowing efficiency and quality of buckwheat seeds, ensures uniform sowing, reduces labor intensity, and is suitable for large-scale planting.

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Abstract

The utility model discloses a buckwheat seed screening and sowing combined device, and relates to the technical field of agricultural equipment. The seeding device comprises a moving seat, a seeding box is mounted on one side of the moving seat, the bottom of the seeding box is communicated with a seeding pipe, and a screening box is mounted at the top of the seeding box; a screening assembly is arranged in the screening box and comprises a guide shell installed in the screening box. According to the buckwheat seed sowing machine, the sowing efficiency of buckwheat seeds is remarkably improved through the screening and sowing functions, impurities and bad seeds in the buckwheat seeds can be effectively removed through the built-in screening assembly, it is guaranteed that the quality of the sown seeds is consistent, and therefore the emergence rate and the overall yield of buckwheat are improved; automatic operation of screening and sowing is achieved, manual intervention is reduced, labor intensity is reduced, working efficiency is improved, buckwheat planting is more convenient and efficient due to the design of the combined device, and the combined device is suitable for large-scale planting application.
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Description

Technical Field

[0001] This utility model belongs to the field of agricultural equipment technology, and in particular relates to a combined device for buckwheat seed screening and sowing. Background Technology

[0002] Buckwheat, as an important food crop, is rich in various nutrients and has wide applications in food, feed, and medicine. Furthermore, buckwheat is highly adaptable and can grow in some relatively barren lands, which is of great significance for ensuring food security and improving the ecological environment.

[0003] Most existing buckwheat seed sowing equipment only has a simple sowing function and lacks a seed screening step. However, during the harvesting, storage and transportation of buckwheat seeds, some impurities and husks will inevitably be mixed in. When the impurities fall with the seeds through the pipes, they occupy the sowing position and easily interfere with the number of seeds sown at one time, affecting the uniformity of sowing.

[0004] To address these issues, we provide a combined buckwheat seed screening and sowing device. Utility Model Content

[0005] The purpose of this invention is to provide a combined buckwheat seed screening and sowing device. By cooperating with the screening component and the transmission component, it solves the problem that existing buckwheat seed sowing equipment lacks screening function, which affects the uniformity of sowing.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a combined buckwheat seed screening and sowing device, comprising a movable base, a sowing box installed on one side of the movable base, a sowing pipe connected to the bottom of the sowing box, and a screening box installed on the top of the sowing box; a screening assembly is provided inside the screening box, the screening assembly includes a guide shell installed inside the screening box, and a screening plate slidably connected inside the guide shell; a transmission assembly is provided on one side of the movable base, the transmission assembly includes a rotating roller movably connected inside the sowing box, a rotating rod installed inside the rotating roller, a push rod installed on the surface of the rotating rod, a moving rod fixedly connected to one side of the screening plate, and a protrusion installed on one side of the moving rod.

[0008] The present invention is further configured such that the transmission assembly includes a first pulley mounted on the surface of the rotating rod, a transmission shaft disposed at the bottom of the movable seat, and a second pulley mounted on the surface of the transmission shaft.

[0009] The present invention is further configured such that a movable wheel is fixedly connected to the surface of the transmission shaft, and the first pulley and the second pulley are connected by belt drive.

[0010] The present invention is further configured such that a support is movably connected to the surface of the transmission shaft via a bearing, and the top of the support is fixedly connected to the movable seat.

[0011] The present invention is further configured such that a spring is sleeved on the surface of the moving rod, and one end of the spring is fixedly connected to the protrusion.

[0012] The present invention is further configured such that the surface of the rotating roller is provided with a groove, and the groove is vertically aligned with the seeding tube.

[0013] The present invention is further configured such that a soil turner is installed on one side of the movable seat, and a metal shell is fixedly connected to the surface of the seeding tube.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model significantly improves the sowing efficiency of buckwheat seeds through screening and sowing functions. The built-in screening component can effectively remove impurities and defective seeds from buckwheat seeds, ensuring consistent seed quality and thus improving the germination rate and overall yield of buckwheat. In addition, the design of the transmission component realizes the automation of screening and sowing operations, reducing manual intervention, lowering labor intensity, and improving work efficiency. This combined device design makes buckwheat planting more convenient and efficient, and is suitable for large-scale planting applications.

[0016] 2. The buckwheat seed screening and sowing combined device of this utility model is also characterized by simple structure and convenient maintenance. Through belt drive and spring reset mechanism, the reciprocating motion of the screening plate is realized, ensuring the stability and reliability of the screening effect. At the same time, the soil turning machine makes the sowing process more convenient, and can quickly turn the soil to provide a good growth environment for the seeds. This design not only improves the practicality and durability of the equipment, but also reduces the cost of use, making it suitable for widespread application in agricultural production.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional diagram of a combined buckwheat seed screening and sowing device.

[0020] Figure 2This is a cross-sectional view of the seeding box and screening box in a buckwheat seed screening and sowing combined device.

[0021] Figure 3 This is a cross-sectional view of the guide shell and sieve plate in a buckwheat seed screening and sowing combined device.

[0022] Figure 4 This is a partial cross-sectional view of the seed box in a buckwheat seed screening and sowing combined device.

[0023] In the attached diagram: 1. Movable seat; 2. Seeding box; 3. Seeding tube; 4. Screening box; 5. Guide shell; 6. Screening plate; 7. Rotating roller; 8. Rotating rod; 9. Push rod; 10. Moving rod; 11. Protrusion; 12. First pulley; 13. Drive shaft; 14. Second pulley; 15. Moving wheel; 16. Support; 17. Spring; 18. Groove; 19. Tiller; 20. Metal shell. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figures 1-4 This utility model relates to a combined buckwheat seed screening and sowing device, comprising a movable base 1, a sowing box 2 installed on one side of the movable base 1, a sowing pipe 3 connected to the bottom of the sowing box 2, and a screening box 4 installed on the top of the sowing box 2. The top of the screening box 4 is an open design, allowing buckwheat seeds to be fed in from the top. A screening component is installed inside the screening box 4, including a guide shell 5 installed inside the screening box 4 and a screening plate 6 slidably connected inside the guide shell 5. A metal screening mesh is installed inside the screening plate 6, using the screening holes of the metal screening mesh to screen the buckwheat seeds, separating large particles and impurities. The shells remain on the top of the sieve plate 6, allowing the buckwheat seeds of the compound planting standard to be sieved and fall into the seed box 2. A transmission component is provided on one side of the movable seat 1. The transmission component includes a rotating roller 7 movably connected to the inside of the seed box 2, a rotating rod 8 installed inside the rotating roller 7, a push rod 9 installed on the surface of the rotating rod 8, a movable rod 10 fixedly connected to one side of the sieve plate 6, and a protrusion 11 installed on one side of the movable rod 10. The side of the push rod 9 near the protrusion 11 has an arc-shaped design. When the push rod 9 rotates around the rotating rod 8 as the axis, it can push the protrusion 11 to move. The cross-section of the protrusion 11 is conical.

[0027] Example 2

[0028] Please see Figures 1-4Based on Embodiment 1, the transmission assembly further includes a first pulley 12 mounted on the surface of the rotating rod 8, a transmission shaft 13 disposed at the bottom of the movable seat 1, and a second pulley 14 mounted on the surface of the transmission shaft 13. The first pulley 12 and the second pulley 14 are connected by a belt drive to transmit the rotational force generated by the movement of the movable wheel 15. The movable wheel 15 is fixedly connected to the surface of the transmission shaft 13. The first pulley 12 and the second pulley 14 are connected by a belt drive. A support 16 is movably connected to the surface of the transmission shaft 13 through a bearing. The top of the support 16 is fixedly connected to the movable seat 1. A spring 17 is sleeved on the surface of the moving rod 10. It has the function of compression and energy storage, which can reset the protrusion 11 and drive the screen plate 6 to move back and forth. One end of the spring 17 is fixedly connected to the protrusion 11. The surface of the rotating roller 7 is provided with a groove 18, which is vertically aligned with the sowing tube 3. The inside of the groove 18 is used to store buckwheat seeds. When the rotating roller 7 rotates, it can turn a certain amount of seeds downward and enter the sowing tube 3. A soil turner 19 is installed on one side of the moving seat 1. A metal shell 20 is fixedly connected to the surface of the sowing tube 3. The soil turner 19 is driven by an external drive device and can turn up the soil layer through rotation to facilitate seed sowing. The metal shell 20 can protect the movement of the sowing tube 3.

[0029] The working principle of this utility model is as follows: The worker pushes the movable seat 1 to the sowing position, and then starts the soil turner 19 to turn the soil. When the movable seat 1 moves, the movable wheel 15 contacts the ground and rotates. When the movable wheel 15 rotates, it drives the transmission shaft 13 to rotate. The transmission shaft 13, in conjunction with the second belt pulley 14, drives the first belt pulley 12 to rotate. The first belt pulley 12, in conjunction with the rotating rod 8, drives the push rod 9 to rotate. When the push rod 9 rotates, it pushes the protrusion 11 to move and compresses the spring 17. When the protrusion 11 moves, it in conjunction with the movable rod 10 to drive the screening plate 6 to move. At this time, the seeds to be sown are put into the screening box 4. The impurities are screened by the screening plate 6. When the push rod 9 rotates continuously, the spring 17 can reset the screening plate 6, and the seeds are screened back and forth to improve the screening effect and avoid impurities from affecting sowing.

[0030] After screening, the seeds fall into the seeding box 2 and into the groove 18. The groove 18 can hold a fixed number of seeds. When the rotating rod 8 rotates, it can drive the rotating roller 7 to rotate synchronously, turning the seeds downwards, into the seeding tube 3, and into the turned soil layer to complete the sowing. This can effectively improve the sowing efficiency of buckwheat seeds.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A combined buckwheat seed screening and sowing device, comprising a movable base (1), characterized in that: A seeding box (2) is installed on one side of the movable seat (1), a seeding pipe (3) is connected to the bottom of the seeding box (2), and a screening box (4) is installed on the top of the seeding box (2); The screening box (4) is equipped with a screening component, which includes a guide shell (5) installed inside the screening box (4) and a screening plate (6) slidably connected inside the guide shell (5). A transmission assembly is provided on one side of the movable seat (1). The transmission assembly includes a rotating roller (7) movably connected to the inside of the seed box (2), a rotating rod (8) installed inside the rotating roller (7), a push rod (9) installed on the surface of the rotating rod (8), a moving rod (10) fixedly connected to one side of the sieve plate (6), and a protrusion (11) installed on one side of the moving rod (10).

2. The buckwheat seed screening and sowing combined device according to claim 1, characterized in that: The transmission assembly also includes a first pulley (12) mounted on the surface of the rotating rod (8), a transmission shaft (13) disposed at the bottom of the movable seat (1), and a second pulley (14) mounted on the surface of the transmission shaft (13).

3. The buckwheat seed screening and sowing combined device according to claim 2, characterized in that: The drive shaft (13) is fixedly connected to a movable wheel (15), and the first pulley (12) and the second pulley (14) are connected by belt drive.

4. The buckwheat seed screening and sowing combined device according to claim 2, characterized in that: The surface of the drive shaft (13) is movably connected to a support (16) via a bearing, and the top of the support (16) is fixedly connected to the movable seat (1).

5. The buckwheat seed screening and sowing combined device according to claim 1, characterized in that: A spring (17) is fitted on the surface of the movable rod (10), and one end of the spring (17) is fixedly connected to the protrusion (11).

6. The buckwheat seed screening and sowing combined device according to claim 1, characterized in that: The rotating roller (7) has a groove (18) on its surface, and the groove (18) is vertically aligned with the seeding tube (3).

7. The buckwheat seed screening and sowing combined device according to claim 1, characterized in that: A soil turner (19) is installed on one side of the movable seat (1), and a metal shell (20) is fixedly connected to the surface of the seeding tube (3).