Agricultural seeding machine with adjustable seeding spacing

By designing an agricultural seeder with adjustable sowing spacing, the problem of the inability to adjust sowing spacing and soil turning depth in existing technologies has been solved, enabling flexible sowing operations and improving sowing efficiency and uniformity.

CN224124598UActive Publication Date: 2026-04-17河北众乡源农业科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
河北众乡源农业科技有限公司
Filing Date
2025-05-23
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing agricultural seeders cannot adjust the seed spacing and depth according to the planting needs of crops.

Method used

An agricultural seeder with adjustable sowing spacing was designed. The sowing spacing is adjusted by setting up a crossbar, a moving frame, gears and toothed plate structure, and the soil turning depth is adjusted by setting up a mounting frame, a vertical bar and a tilling plow structure.

Benefits of technology

It enables flexible adjustment of sowing spacing and tilling depth according to the needs of different crops, improving sowing efficiency and uniformity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of agricultural devices, one embodiment of the utility model provides an agricultural seeder with adjustable seeding spacing, the agricultural seeder comprises a frame, the right side of the upper surface of the frame is fixedly connected with a sleeving block, and the inner surface of the sleeving block is fixedly sleeved with a cross bar; through the arrangement of the cross rod, the moving frame, the first circular shaft, the gear and the toothed plate, when an operator starts the first motor, the first circular shaft and the gear start to rotate, and the outer surface of the gear and the outer surface of the toothed plate are meshed with each other, so that the rotating speed is increased; the two toothed plates and the two moving frames integrally move oppositely along the outer surface of the transverse rod under the driving of the gears, and in the process, the distance between the two moving frames integrally can be increased or decreased, so that different seeding distances of different crops are met, and seeding operation of operators is facilitated. According to the technical scheme, the technical problem that the seeding spacing is inconvenient to adjust in the prior art is solved.
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Description

Technical Field

[0001] The embodiments of this disclosure relate to the field of agricultural equipment technology, and more specifically, to an agricultural seeder with adjustable seeding spacing. Background Technology

[0002] A seeder is a type of machinery used in agricultural planting. Through automated or semi-automated operation, it precisely sows seeds into the soil, improving sowing efficiency and uniformity. Modern seeders are divided into types such as row seeders, spot seeders, and precision seeders. Their advantages include saving manpower, shortening the sowing cycle, optimizing seed utilization, and adapting to different terrains and soil conditions. Seeders are widely used in the planting of field crops such as wheat, corn, and soybeans, as well as some cash crops. They are an important tool for large-scale and standardized production in modern agriculture and play a key role in improving the level of agricultural mechanization.

[0003] In the existing technology, operators often use agricultural seeders when planting crops to quickly sow crop seeds. However, although existing agricultural seeders have automatic seed picking and sowing functions, the distance between the two conveying pipes is generally fixed. This makes it impossible for operators to adjust the seed sowing distance according to the planting needs of crops, so it needs to be improved. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this disclosure provide an agricultural seeder with adjustable seeding spacing, which solves the technical problem of inconvenience in adjusting seeding spacing in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides an agricultural seeder with adjustable sowing spacing, including a frame. A connecting block is fixedly connected to the right side of the upper surface of the frame. A crossbar is fixedly connected to the inner surface of the connecting block. Movable frames are movably connected to both the front and rear sides of the outer surface of the crossbar. The number of movable frames is two. Seed bins are fixedly connected to the upper surfaces of the two movable frames. A No. 1 motor is fixedly mounted on the upper surface of the connecting block. A No. 1 round shaft is fixedly connected to the other end of the output shaft of the No. 1 motor. A gear located above the connecting block is fixedly connected to the outer surface of the No. 1 round shaft. Toothed plates are meshed to both the left and right sides of the outer surface of the gear. The number of toothed plates is two. The lower surfaces of the two toothed plates are fixedly connected to the right sides of the upper surfaces of the two movable frames, respectively.

[0006] As a preferred technical solution of this disclosure, an L-shaped plate is movably connected to the upper surface of both toothed plates, and the bottom end of the L-shaped plate is fixedly connected to the upper surface of the sleeve block.

[0007] As a preferred technical solution of this disclosure, a first limiting plate is fixedly connected to both the front and rear ends of the crossbar, and there are two first limiting plates, the positions of the two first limiting plates are symmetrical about the front and rear of the frame.

[0008] As a preferred technical solution of this disclosure, a hollow disc is fixedly connected to the lower surface of the seed bin, a conveying pipe is fixedly connected to the lower surface of the hollow disc, a power motor is fixedly installed on the outer surface of the hollow disc, a rotating shaft is fixedly sleeved at the other end of the output shaft of the power motor, and the other end of the rotating shaft passes through the hollow disc and extends to the outside of the hollow disc.

[0009] As a preferred embodiment of this disclosure, a seed-taking disc located inside a hollow disk is fixedly sleeved on the outer surface of the rotating shaft. The top of the seed-taking disc penetrates through the seed chamber and extends to the bottom of the inner surface of the seed chamber. The outer surface of the seed-taking disc and the inner surface of the seed chamber are movably connected.

[0010] As a preferred technical solution of this disclosure, a mounting frame is fixedly connected to the lower surface of the seed bin, and a side plate is movably connected to the lower surface of the mounting frame. There are two side plates, and the outer surfaces of the two side plates are respectively fixedly installed on the outer surfaces of the front and rear sides of the vehicle frame.

[0011] As a preferred embodiment of this disclosure, a vertical rod is movably sleeved on the lower surface of the mounting frame, a tiller is fixedly connected to the bottom end of the vertical rod, and the top end of the vertical rod passes through the mounting frame and extends to the top of the mounting frame.

[0012] As a preferred technical solution of this disclosure, a cylinder located above the mounting frame is fixedly connected to the outer surface of the vertical rod, and a second limiting plate is fixedly connected to the top end of the vertical rod.

[0013] As a preferred technical solution of this disclosure, a second motor is fixedly mounted on the outer surface of the mounting bracket, and a second round shaft is fixedly sleeved on the other end of the output shaft of the second motor. A driving rod is fixedly sleeved on the outer surface of the second round shaft, and the inner surface of the driving rod is movably connected to the outer surface of the cylinder.

[0014] As a preferred technical solution of this disclosure, four movable wheels are movably mounted on the outer surfaces of the front and rear sides of the vehicle frame, and the four movable wheels are of the same size.

[0015] The beneficial effects of the embodiments disclosed herein are as follows:

[0016] 1. This disclosure includes a crossbar, a movable frame, a first circular shaft, a gear, and a toothed plate. When the operator starts the first motor, the first circular shaft and the gear will begin to rotate. Since the outer surfaces of the gear and the toothed plate mesh with each other, the two toothed plates and the two movable frames will begin to move in opposite directions along the outer surface of the crossbar under the drive of the gear. During this process, the distance between the two movable frames will expand or shrink, thereby meeting the different sowing spacing requirements of different crops and facilitating the operator's sowing operations.

[0017] 2. In this disclosure, an installation frame, a vertical rod, a tiller, a cylinder, and a drive rod are provided. When the second motor starts running, the second cylindrical shaft and the drive rod will start to rotate. During this process, the inner surface of the drive rod will drive the cylinder, thereby causing the cylinder, the tiller, and the vertical rod to move up and down along the inner surface of the installation frame. This will change the tilling depth of the tiller, thereby allowing crop seeds to be sown in soil at different depths, thus meeting the needs of different crops for planting at different depths. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall frontal structure in one embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 A schematic diagram of the overall back structure in the embodiment;

[0021] Figure 3 for Figure 1 A cross-sectional view of the vehicle frame in the embodiment;

[0022] Figure 4 for Figure 1 A cross-sectional view of the seed compartment in the embodiment;

[0023] Figure 5 for Figure 1 A schematic cross-sectional view of the seed tray in the embodiment;

[0024] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0025] In the diagram: 1. Frame; 2. Connecting block; 3. Crossbar; 4. Moving frame; 5. Seed bin; 6. Motor No. 1; 7. Round shaft No. 1; 8. Gear; 9. Tooth plate; 10. L-shaped plate; 11. Limiting plate No. 1; 12. Hollow disc; 13. Conveying pipe; 14. Power motor; 15. Rotating shaft; 16. Seed tray; 17. Mounting frame; 18. Side plate; 19. Vertical rod; 20. Tillage plow; 21. Limiting plate No. 2; 22. Cylinder; 23. Motor No. 2; 24. Round shaft No. 2; 25. Drive rod; 26. Moving wheel. Detailed Implementation

[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-6 As shown, this is an embodiment of an agricultural seeder with adjustable sowing spacing, including a frame 1. A connecting block 2 is fixedly connected to the right side of the upper surface of the frame 1. A crossbar 3 is fixedly connected to the inner surface of the connecting block 2. Movable frames 4 are movably connected to both the front and rear sides of the outer surface of the crossbar 3. There are two movable frames 4. Seed bins 5 are fixedly connected to the upper surface of both movable frames 4. A first motor 6 is fixedly installed on the upper surface of the connecting block 2. A first round shaft 7 is fixedly connected to the other end of the output shaft of the first motor 6. A gear 8 located above the connecting block 2 is fixedly connected to the outer surface of the first round shaft 7. Tooth plates 9 are meshed on both the left and right sides of the outer surface of the gear 8. There are two tooth plates 9. The lower surfaces of the two tooth plates 9 are fixedly connected to the right side of the upper surface of the two movable frames 4, respectively.

[0033] When the operator starts motor 6, the first circular shaft 7 and gear 8 will start to rotate. Since the outer surface of gear 8 meshes with the toothed plate 9, the two toothed plates 9 will move in opposite directions under the drive of gear 8, thereby changing the distance between the two moving frames 4.

[0034] In some examples, the upper surfaces of both toothed plates 9 are movably connected to L-shaped plates 10, and the bottom end of the L-shaped plates 10 is fixedly connected to the upper surface of the sleeve block 2.

[0035] The design of the L-shaped plate 10 ensures that the two toothed plates 9 remain stable during movement.

[0036] In some examples, the front and rear ends of the crossbar 3 are fixedly connected to a first limiting plate 11. There are two first limiting plates 11, and the positions of the two first limiting plates 11 are symmetrical about the front and rear of the frame 1.

[0037] The design of the first limiting plate 11 serves to limit the movement range of the two moving frames 4.

[0038] In some examples, a hollow disc 12 is fixedly connected to the lower surface of the seed bin 5, a conveying pipe 13 is fixedly connected to the lower surface of the hollow disc 12, a power motor 14 is fixedly installed on the outer surface of the hollow disc 12, and a rotating shaft 15 is fixedly sleeved at the other end of the output shaft of the power motor 14. The other end of the rotating shaft 15 passes through the hollow disc 12 and extends to the outside of the hollow disc 12.

[0039] When the power motor 14 is running, the rotating shaft 15 will start to rotate as a whole.

[0040] In some examples, the outer surface of the rotating shaft 15 is fixedly fitted with a seed-collecting disc 16 located inside the hollow disc 12. The top of the seed-collecting disc 16 penetrates through the seed chamber 5 and extends to the bottom of the inner surface of the seed chamber 5. The outer surface of the seed-collecting disc 16 and the inner surface of the seed chamber 5 are movably connected.

[0041] The outer surface of the seed collection tray 16 is provided with grooves. The design of these grooves allows the seeds inside the seed chamber 5 to fall into the seed collection tray 16 under the action of gravity.

[0042] In some examples, the lower surface of the seed compartment 5 is fixedly connected to a mounting bracket 17, and the lower surface of the mounting bracket 17 is movably connected to a side plate 18. There are two side plates 18, and the outer surfaces of the two side plates 18 are respectively fixedly installed on the outer surfaces of the front and rear sides of the frame 1.

[0043] The design of the side plate 18 serves as an auxiliary support for the entire mounting frame 17 and the seed chamber 5.

[0044] In some examples, a vertical rod 19 is movably sleeved on the lower surface of the mounting bracket 17, a tiller 20 is fixedly connected to the bottom end of the vertical rod 19, and the top end of the vertical rod 19 passes through the mounting bracket 17 and extends above the mounting bracket 17.

[0045] The design of the mounting bracket 17 and the vertical rod 19 allows the vertical rod 19 and the tiller 20 to move up and down along the inner surface of the mounting bracket 17.

[0046] In some examples, the outer surface of the vertical rod 19 is fixedly connected to a cylinder 22 located above the mounting bracket 17, and the top of the vertical rod 19 is fixedly connected to a second limiting plate 21.

[0047] The design of the second limiting plate 21 serves to limit the overall movement range of the vertical rod 19.

[0048] In some examples, a second motor 23 is fixedly mounted on the outer surface of the mounting bracket 17, and a second round shaft 24 is fixedly sleeved on the other end of the output shaft of the second motor 23. A drive rod 25 is fixedly sleeved on the outer surface of the second round shaft 24, and the inner surface of the drive rod 25 is movably connected to the outer surface of the cylinder 22.

[0049] When motor 23 is running, the entire shaft 24 will begin to rotate.

[0050] In some examples, four movable wheels 26 are movably mounted on the outer surfaces of the front and rear sides of the frame 1, and the four movable wheels 26 are of the same size.

[0051] The design of the movable wheel 26 allows the entire frame 1 to move.

[0052] The working principle and usage process of this disclosure are as follows:

[0053] First, start motor 6 and motor 23. The operation of motor 6 will cause the first circular shaft 7 and gear 8 to rotate. The rotation of gear 8 will drive the toothed plate 9, thereby causing the two moving frames 4 to move in opposite directions along the outer surface of the crossbar 3 until the distance between the two moving frames 4 meets the planting needs of the operator. The operation of motor 23 will cause the second circular shaft 24 and the driving rod 25 to rotate. At this time, the inner surface of the driving rod 25 will drive the cylinder 22, thereby causing the cylinder 22, the tiller 20 and the vertical rod 19 to move up and down along the inner surface of the mounting frame 17 until the position of the tiller 20 meets the planting needs of the crops.

[0054] The operator then places the seeds inside the seed chamber 5 and starts the power motor 14. The vehicle then pulls the frame 1 to move across the field. At this time, the tillage plow 20 turns over the soil, and the operation of the power motor 14 causes the rotating shaft 15 and the seed-collecting disc 16 to start rotating. The rotation of the seed-collecting disc 16 causes the seeds inside the seed chamber 5 to fall into the seed chamber 5. Then, as the seed-collecting disc 16 rotates, the seeds finally fall into the turned-over soil through the delivery pipe 13, thus completing the crop sowing operation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An agricultural seeder with adjustable sowing spacing, comprising a frame (1), characterized in that: A sleeve block (2) is fixedly connected to the right side of the upper surface of the frame (1). A crossbar (3) is fixedly sleeved on the inner surface of the sleeve block (2). Movable frames (4) are movably sleeved on both the front and rear sides of the outer surface of the crossbar (3). There are two movable frames (4). Seed bins (5) are fixedly connected to the upper surface of the two movable frames (4). A motor (6) is fixedly installed on the upper surface of the sleeve block (2). A round shaft (7) is fixedly sleeved on the other end of the output shaft of the motor (6). A gear (8) located above the sleeve block (2) is fixedly sleeved on the outer surface of the round shaft (7). Gear plates (9) are meshed on both the left and right sides of the outer surface of the gear (8). There are two gear plates (9). The lower surfaces of the two gear plates (9) are fixedly connected to the right side of the upper surface of the two movable frames (4).

2. The agricultural seeding machine of claim 1, wherein: Both of the toothed plates (9) have an L-shaped plate (10) movably connected to their upper surfaces, and the bottom end of the L-shaped plate (10) is fixedly connected to the upper surface of the sleeve block (2).

3. The agricultural seeding machine of claim 1, wherein: The front and rear ends of the crossbar (3) are fixedly connected to a first limiting plate (11). There are two first limiting plates (11), and the positions of the two first limiting plates (11) are symmetrical about the front and rear of the frame (1).

4. The seeding spacing adjustable agricultural seeder of claim 1, wherein: A hollow disc (12) is fixedly connected to the lower surface of the seed bin (5), and a conveying pipe (13) is fixedly connected to the lower surface of the hollow disc (12). A power motor (14) is fixedly installed on the outer surface of the hollow disc (12). A rotating shaft (15) is fixedly sleeved at the other end of the output shaft of the power motor (14). The other end of the rotating shaft (15) passes through the hollow disc (12) and extends to the outside of the hollow disc (12).

5. The seeding spacing adjustable agricultural seeder of claim 4, wherein: The outer surface of the rotating shaft (15) is fixedly fitted with a seed-taking plate (16) located inside the hollow disc (12). The top of the seed-taking plate (16) penetrates the seed bin (5) and extends to the bottom of the inner surface of the seed bin (5). The outer surface of the seed-taking plate (16) and the inner surface of the seed bin (5) are movably connected.

6. The agricultural seeding machine of claim 1, wherein: The lower surface of the seed bin (5) is fixedly connected to a mounting frame (17), and the lower surface of the mounting frame (17) is movably connected to a side plate (18). There are two side plates (18), and the outer surfaces of the two side plates (18) are respectively fixedly installed on the outer surfaces of the front and rear sides of the frame (1).

7. The seeding spacing adjustable agricultural seeder of claim 6, wherein: A vertical rod (19) is movably sleeved on the lower surface of the mounting frame (17). A tiller (20) is fixedly connected to the bottom end of the vertical rod (19). The top end of the vertical rod (19) passes through the mounting frame (17) and extends to the top of the mounting frame (17).

8. The agricultural seeding machine of claim 7, wherein: The outer surface of the vertical rod (19) is fixedly connected to a cylinder (22) located above the mounting bracket (17), and the top end of the vertical rod (19) is fixedly connected to a second limiting plate (21).

9. The seeding spacing adjustable agricultural seeder of claim 6, wherein: The outer surface of the mounting bracket (17) is fixedly mounted with a second motor (23), and the other end of the output shaft of the second motor (23) is fixedly sleeved with a second round shaft (24). The outer surface of the second round shaft (24) is fixedly sleeved with a drive rod (25), and the inner surface of the drive rod (25) is movably connected to the outer surface of the cylinder (22).

10. An agricultural seeder with adjustable seeding spacing according to claim 1, characterized in that: The outer surfaces of the front and rear sides of the frame (1) are movably mounted with four movable wheels (26), and the four movable wheels (26) are the same size.