Wheat seeding device capable of adjusting seeding depth

By designing an adjustable-depth wheat sowing device, utilizing a U-shaped plate and a pusher plate structure and a motor drive, the problem of untimely soil covering was solved, achieving uniform coverage and depth adjustment of wheat seeds, thus improving sowing efficiency and seedling quality.

CN224165157UActive Publication Date: 2026-04-28河南省天宁种业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
河南省天宁种业有限公司
Filing Date
2025-04-30
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

When existing wheat sowing equipment is used to dig furrows, soil is turned over to the side of the furrows and not dealt with in time, which affects the coverage of wheat seeds, resulting in uneven sowing depth and uneven emergence.

Method used

An adjustable-depth wheat sowing device was designed, comprising an adjustment mechanism and an auxiliary mechanism. Through a U-shaped plate and a pusher plate structure, timely soil covering and sowing depth adjustment are achieved. The position of the furrowing knife is adjusted by a motor-driven turntable and a pressing plate, and the pressure of the pusher plate is increased by a telescopic rod to ensure that the soil is pushed back into the furrow.

Benefits of technology

It enables seamless operation of trenching, sowing, and covering, ensuring that wheat seeds are sown at the appropriate depth, improving germination rate and growth quality, and adapting to different soil conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wheat planting, in particular to a wheat seeding device capable of adjusting seeding depth, which comprises an adjusting mechanism, an auxiliary mechanism is arranged at one end of the adjusting mechanism, the adjusting mechanism comprises a transverse plate, a sub-rod is arranged at the bottom end of the transverse plate, and the bottom end of the transverse plate is fixedly connected with the top end of the sub-rod. According to the wheat seeding device capable of adjusting the seeding depth, the U-shaped plate is located behind the ditching cutter, then two shifting plates are designed on the inner side of the U-shaped plate, the shifting plates are inclined, the shifting plates make contact with soil beside a groove, the furrow opening cutter is arranged on the U-shaped plate, the furrow opening cutter is arranged on the U-shaped plate, the furrow opening cutter is arranged on the U-shaped plate, and the furrow opening cutter is arranged on the furrow opening cutter. Through the arrangement of the U-shaped plate, in the advancing process of the seeding device, along with the movement of the U-shaped plate, the inclined poking plate can poke soil turned beside a groove back into the groove, wheat seeds sown in the groove are covered in time, and coherent operation of grooving, seeding and soil covering is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of wheat planting technology, specifically to a wheat sowing device with adjustable sowing depth. Background Technology

[0002] A wheat seeding device is a mechanical device that plants wheat seeds in the soil using a seeding system. It is primarily driven by a tractor and is suitable for fertilizing and sowing wheat in plains and hilly areas. It features good versatility, wide adaptability, and uniform sowing.

[0003] In existing technologies, before wheat planting, it is necessary to dig trenches in the farmland. These trenches increase the soil's water retention capacity, allowing rainwater to better penetrate deeper into the soil, reducing surface runoff, and improving the soil's water retention capacity. Simultaneously, trenches facilitate the soil's adsorption and retention of fertilizers, reducing fertilizer loss and improving fertilizer utilization.

[0004] However, wheat sowing usually requires the use of a sowing machine. While the sowing machine can adjust the depth of the furrows, soil tends to accumulate along the sides of the furrows as they are opened. If this soil is not removed promptly, it can affect the coverage of the wheat seeds. If the soil is piled up too close together, some of it may slip back into the furrows during subsequent sowing, altering the furrow depth and affecting the normal sowing depth, leading to uneven wheat emergence. Therefore, we propose a wheat sowing device with adjustable sowing depth. Utility Model Content

[0005] One of the technical problems this application aims to solve is: when the wheat is in the trench, the soil on both sides should be covered on the wheat in a timely manner.

[0006] To address the aforementioned technical problems, this application provides an adjustable wheat sowing device, comprising an adjustment mechanism. One end of the adjustment mechanism is equipped with an auxiliary mechanism. The adjustment mechanism includes a horizontal plate, a sub-rod at the bottom of the horizontal plate, and the bottom of the horizontal plate is fixedly connected to the top of the sub-rod. A U-shaped plate is provided on one side of the bottom of the sub-rod, and the bottom of the sub-rod is fixedly connected to one end of the U-shaped plate. A lever is provided on one side of the U-shaped plate, and one end of the lever is rotatably connected to the inner side of the U-shaped plate. A moving rod is provided on one side of the lever, and one side of the lever is slidably in contact with one end of the moving rod. One side of the lever is rotatably in contact with the inner wall of the U-shaped plate.

[0007] In some embodiments, the auxiliary mechanism includes a transfer tube, a fixing rod is provided on the top side of one end of the transfer tube, the top side of one end of the transfer tube is fixedly connected to the bottom end of the fixing rod, a grooving knife is provided on the top end of the fixing rod, the top end of the fixing rod is fixedly connected to one end of the grooving knife, and a material conveying pipe is provided on the inner wall of the transfer tube, the inner wall of the transfer tube is fitted and snapped into one end of the material conveying pipe.

[0008] In some embodiments, a seeder frame is provided at one end of the horizontal plate, and the one end of the horizontal plate is fixedly connected to the inner side of the seeder frame. A turntable is provided at the middle end of the seeder frame, and the middle end of the seeder frame is rotatably connected to the outer side of the turntable.

[0009] In some embodiments, a motor is provided at the center of the top side of the turntable, the center of the top side of the turntable is fixedly connected to the output end of the motor, and one side of the motor is fixedly connected to the middle end of the seeder frame.

[0010] In some embodiments, an extrusion plate is provided on the bottom side of the turntable, the bottom side of the turntable is fixedly connected to the top end of the extrusion plate, a connecting rod is provided on the inclined surface of the extrusion plate, the inclined surface of the extrusion plate is rotatably in contact with the top end of the connecting rod, a base plate is provided at the bottom end of the connecting rod, and the bottom end of the connecting rod is fixedly connected to the top side of the base plate.

[0011] In some embodiments, the bottom side of the base plate is fixedly connected to the top end of the trenching cutter, and an inner rod is provided on the top side of one end of the base plate, and the top side of one end of the base plate is fixedly connected to the bottom end of the inner rod.

[0012] In some embodiments, the outer side of the inner rod is slidably connected through the inner wall of the seeder frame, a material bin is provided on the inner side of the seeder frame, one end of the material bin is fixedly connected to the inner side of the seeder frame, and the bottom end of the material bin is fixedly connected to the top end of the conveying pipe.

[0013] In some embodiments, a telescopic rod is provided on one side of the middle end of the movable rod, one side of the middle end of the movable rod is fixedly connected to one end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to one side end of the sub-rod.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. The U-shaped plate is located behind the furrow cutter. Furthermore, two slanted plates are designed on the inner side of the U-shaped plate. The slanted plates contact the soil next to the furrow, so that as the U-shaped plate moves, the slanted slanted plates can push the soil turned over next to the furrow back into the furrow, so as to cover the wheat seeds that have been sown into the furrow in time, thus realizing the continuous operation of furrowing, sowing and covering.

[0016] 2. By retracting the telescopic rod, the connected movable rod moves synchronously during the retraction process. Due to the change in position of the movable rod, the external force increases from the end of the lever plate, thereby reducing the distance between the ends of the two lever plates. With the increase in external force, the force-bearing area decreases and the pressure increases. Therefore, the lever plate can apply greater force to break and move harder soil, and smoothly push it back into the trench. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the adjustment mechanism assembly of this utility model;

[0019] Figure 3 This is a bottom view of the adjustment mechanism assembly of this utility model;

[0020] Figure 4 This is a side sectional view of the adjustment mechanism assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of some components of the adjustment mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the auxiliary mechanism components of this utility model;

[0023] In the diagram: 1. Adjustment mechanism; 11. Seeder frame; 12. Turntable; 13. Extrusion plate; 14. Connecting rod; 15. Base plate; 16. Furrow cutter; 17. Motor; 18. Inner rod; 19. Horizontal plate; 110. Sub-rod; 111. U-shaped plate; 112. Paddle plate; 113. Moving rod; 114. Telescopic rod; 115. Conveying pipe; 116. Material bin;

[0024] 2. Auxiliary mechanism; 21. Transfer pipe; 22. Fixing rod. Detailed Implementation

[0025] 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.

[0026] Example 1: Please refer to Figures 1-6This utility model provides a technical solution: an adjustable wheat sowing device, including an adjusting mechanism 1, an auxiliary mechanism 2 at one end of the adjusting mechanism 1, the adjusting mechanism 1 including a horizontal plate 19, a sub-rod 110 at the bottom end of the horizontal plate 19, the bottom end of the horizontal plate 19 being fixedly connected to the top end of the sub-rod 110, a U-shaped plate 111 at one side of the bottom end of the sub-rod 110, the bottom end of the sub-rod 110 being fixedly connected to one end of the U-shaped plate 111, a lever 112 at one end of the inner side of the U-shaped plate 111, the lever 112 at one end of the inner side of the U-shaped plate 111... One end of the lever 112 is rotatably connected to a movable rod 113 on one side. One side of the lever 112 slides in contact with one end of the movable rod 113. One side of the lever 112 is rotatably connected to the inner wall of the U-shaped plate 111. One end of the horizontal plate 19 is provided with a seeder frame 11, and one end of the horizontal plate 19 is fixedly connected to the inner side of the seeder frame 11. A turntable 12 is provided in the middle of the seeder frame 11, and the middle of the seeder frame 11 is rotatably connected to the outer side of the turntable 12. A motor 17 is provided at the center of the top side of the turntable 12, and the center of the top side of the turntable 12 is connected to the motor 17. The output end is fixedly connected, one side of the motor 17 is fixedly connected to the middle of the seeder frame 11, the bottom side of the turntable 12 is provided with a pressing plate 13, the bottom side of the turntable 12 is fixedly connected to the top of the pressing plate 13, the inclined surface of the pressing plate 13 is provided with a connecting rod 14, the inclined surface of the pressing plate 13 is rotatably contacted with the top of the connecting rod 14, the bottom end of the connecting rod 14 is provided with a base plate 15, the bottom end of the connecting rod 14 is fixedly connected to the top side of the base plate 15, the bottom side of the base plate 15 is fixedly connected to the top of the furrowing blade 16, and one end of the top side of the base plate 15 is provided with an inner rod 18. One end of the top side of the inner rod 15 is fixedly connected to the bottom end of the inner rod 18. The outer side of the inner rod 18 is slidably connected to the inner wall of the seeder frame 11. A material bin 116 is provided on the inner side of the seeder frame 11. One end of the material bin 116 is fixedly connected to the inner side of the seeder frame 11. The bottom end of the material bin 116 is fixedly connected to the top end of the conveying pipe 115. A telescopic rod 114 is provided on one side of the middle end of the moving rod 113. One end of the telescopic rod 114 is fixedly connected to the middle end of the moving rod 113. The other end of the telescopic rod 114 is fixedly connected to one side of the sub-rod 110.

[0027] When using this type of wheat seeding device with adjustable seeding depth, firstly, a turntable 12 is designed in the middle of the seeder frame 11, and an extrusion plate 13 is designed on the bottom side of the turntable 12. The extrusion plate 13 is shaped like an arc-shaped triangle. In order to move the position of the furrowing blade 16 downward and change the wheat seeding depth, the turntable 12 and the extrusion plate 13 are rotated synchronously by starting the motor 17. The extrusion plate 13 uses its inclined surface to increase downward pressure on the connecting rod 14. Since the bottom end of the connecting rod 14 is designed with a base plate 15, and the top of the furrowing blade 16 is located on the bottom side of the base plate 15, when the connecting rod 14 moves downward, the position of the base plate 15 and the furrowing blade 16 is adjusted simultaneously, thereby changing the wheat seeding depth. In this way, the wheat seeding device with adjustable seeding depth can adapt to different soil conditions and planting needs, ensure that wheat seeds are sown at the appropriate depth, and improve the germination rate and growth quality of the seeds.

[0028] During the trenching process, since the material bin 116 is designed inside the seeder frame 11 and the bottom of the seeder frame 11 is connected to the conveying pipe 115, and the other end of the conveying pipe 115 is located behind the trenching blade 16, the wheat can enter the trench while it is being trenched.

[0029] Because soil is stirred up beside the furrow during the furrowing process, and wheat can enter the furrow while it is being furrowed, a horizontal plate 19 is designed inside the seeder frame 11 to ensure that the soil is placed back into the furrow after the wheat enters. A sub-rod 110 is installed on the bottom side of the horizontal plate 19, and the three are connected by welding. The bottom end of the sub-rod 110 has four U-shaped plates 111, each corresponding to a furrowing blade 16 and located behind it. Furthermore, two slanted plates 112 are designed inside the U-shaped plates 111, which contact the soil beside the furrow. This allows the soil to be moved back into the furrow as the seeder moves. The movement of the shaped plate allows the inclined pusher plate 112 to push the soil turned over on the side of the trench back into the trench, so as to cover the wheat seeds that have been sown into the trench in time, thus realizing the continuous operation of trenching, sowing and covering.

[0030] If the soil next to the trench is relatively hard, the telescopic rod 114 can be retracted, causing the connected movable rod 113 to move synchronously during the retraction process. Due to the change in position of the movable rod 113, the external force will increase from the end of the lever 112 during this process, thereby reducing the distance between the ends of the two levers 112. With the increase in external force, the force-bearing area decreases and the pressure increases, so the lever 112 can apply greater force to break and move the harder soil, smoothly pushing it back into the trench to ensure that the wheat seeds can be effectively covered.

[0031] Example 2: Please refer to Figures 4-6 The auxiliary mechanism 2 includes a transfer pipe 21. A fixing rod 22 is provided on the top side of one end of the transfer pipe 21. The top side of one end of the transfer pipe 21 is fixedly connected to the bottom end of the fixing rod 22. A grooving knife 16 is provided on the top end of the fixing rod 22. The top end of the fixing rod 22 is fixedly connected to one end of the grooving knife 16. A material conveying pipe 115 is provided on the inner wall of the transfer pipe 21. The inner wall of the transfer pipe 21 is fitted and snapped into one end of the material conveying pipe 115.

[0032] A fixing rod 22 is designed at one end of the furrowing knife 16. Since the inside of the furrowing knife 16 is open, a transfer tube 21 is designed at the bottom of the fixing rod 22. One end of the transfer tube 21 is located inside the furrowing knife 16, and the other end is connected to the conveying pipe 115. When the conveying pipe 115 delivers wheat seeds, the seeds can smoothly enter the furrowing knife 16 through the transfer tube 21. As the furrowing knife 16 moves in the soil and opens up furrows, the wheat seeds can fall accurately into the furrows while the furrows are being opened, avoiding soil from entering the transfer tube 21 and causing blockage.

[0033] Please see Figures 1-6 The motor 17 is started, causing the turntable 12 and the extrusion plate 13 to rotate synchronously. The extrusion plate 13 uses its inclined surface to increase downward pressure on the connecting rod 14. Since the bottom end of the connecting rod 14 is designed with a base plate 15, and the top of the furrowing knife 16 is located on the bottom side of the base plate 15, the base plate 15 and the furrowing knife 16 are simultaneously adjusted in position when the connecting rod 14 moves down, thereby changing the sowing depth of the wheat. Because the wheat can enter the furrow while it is being furrowed, in order to ensure that the soil is placed back in the furrow after the wheat enters it, therefore, The inner side of the seeder frame 11 is designed with a horizontal plate 19, and a sub-rod 110 is installed on the bottom side of the horizontal plate 19. The three are connected to each other by welding. The bottom end of the sub-rod 110 is designed with a U-shaped plate 111, and there are four U-shaped plates 111. Each U-shaped plate 111 corresponds to a furrowing blade 16 and is located behind the furrowing blade 16. Furthermore, two slanted plates 112 are designed on the inner side of the U-shaped plate 111. The slanted plates 112 contact the soil next to the furrow, so that as the seeder moves, the soil is moved along with the U-shaped plates 111. The movement of the shaped plate allows the inclined lever 112 to push the soil turned over beside the trench back into the trench. By retracting the telescopic rod 114, the moving rod 113 connected to it moves synchronously during the retraction process. Due to the change in position of the moving rod 113, the external force increases from the end of the lever 112, thereby reducing the distance between the ends of the two levers 112. With the increase in external force, the force-bearing area decreases and the pressure increases, so the lever 112 can apply greater force to break and move harder soil.

[0034] A transfer pipe 21 is designed at the bottom of the fixed rod 22. One end of the transfer pipe 21 is located inside the furrow cutter 16, and the other end is connected to the conveying pipe 115. When the conveying pipe 115 delivers wheat seeds, the seeds can smoothly enter the furrow cutter 16 through the transfer pipe 21, avoiding soil from entering the transfer pipe 21 and causing blockage.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A wheat sowing device with adjustable sowing depth, characterized in that: The device includes an adjustment mechanism (1), one end of which is provided with an auxiliary mechanism (2). The adjustment mechanism (1) includes a horizontal plate (19), the bottom end of which is provided with a sub-rod (110). The bottom end of the horizontal plate (19) is fixedly connected to the top end of the sub-rod (110). A U-shaped plate (111) is provided on one side of the bottom end of the sub-rod (110). One side of the bottom end of the sub-rod (110) is fixedly connected to one end of the U-shaped plate (111). A lever (112) is provided on one side of the inner side of the U-shaped plate (111). One end of the lever (112) is rotatably connected to one side of the inner side of the U-shaped plate. A moving rod (113) is provided on one side of the lever (112). One side of the lever (112) is slidably contacted with one end of the moving rod (113). One side of the lever (112) is rotatably contacted with the inner wall of the U-shaped plate (111).

2. The wheat sowing device with adjustable sowing depth according to claim 1, characterized in that: The auxiliary mechanism (2) includes a transfer tube (21), a fixing rod (22) is provided on the top side of one end of the transfer tube (21), the top side of one end of the transfer tube (21) is fixedly connected to the bottom end of the fixing rod (22), a grooving knife (16) is provided on the top end of the fixing rod (22), the top end of the fixing rod (22) is fixedly connected to one end of the grooving knife (16), a conveying pipe (115) is provided on the inner wall of the transfer tube (21), and the inner wall of the transfer tube (21) is fitted and snapped with one end of the conveying pipe (115).

3. The wheat sowing device with adjustable sowing depth according to claim 2, characterized in that: One end of the horizontal plate (19) is provided with a seeder frame (11), and one end of the horizontal plate (19) is fixedly connected to the inner side of the seeder frame (11). A turntable (12) is provided at the middle end of the seeder frame (11), and the middle end of the seeder frame (11) is rotatably connected to the outer side of the turntable (12).

4. The wheat sowing device with adjustable sowing depth according to claim 3, characterized in that: A motor (17) is provided at the center of the top side of the turntable (12). The center of the top side of the turntable (12) is fixedly connected to the output end of the motor (17). One side of the motor (17) is fixedly connected to the middle end of the seeder frame (11).

5. The wheat sowing device with adjustable sowing depth according to claim 4, characterized in that: The bottom side of the turntable (12) is provided with an extrusion plate (13), the bottom side of the turntable (12) is fixedly connected to the top of the extrusion plate (13), the inclined surface of the extrusion plate (13) is provided with a connecting rod (14), the inclined surface of the extrusion plate (13) is rotatably contacted with the top of the connecting rod (14), the bottom end of the connecting rod (14) is provided with a base plate (15), and the bottom end of the connecting rod (14) is fixedly connected to the top side of the base plate (15).

6. The wheat sowing device with adjustable sowing depth according to claim 5, characterized in that: The bottom side of the base plate (15) is fixedly connected to the top of the trenching cutter (16), and an inner rod (18) is provided on the top side of one end of the base plate (15). The top side of one end of the base plate (15) is fixedly connected to the bottom end of the inner rod (18).

7. The wheat sowing device with adjustable sowing depth according to claim 6, characterized in that: The outer side of the inner rod (18) is slidably connected to the inner wall of the seeder frame (11). A material bin (116) is provided on the inner side of the seeder frame (11). The inner side of the seeder frame (11) is fixedly connected to one end of the material bin (116). The bottom end of the material bin (116) is fixedly connected to the top end of the conveying pipe (115).

8. The wheat sowing device with adjustable sowing depth according to claim 1, characterized in that: A telescopic rod (114) is provided on one side of the middle end of the movable rod (113). One side of the middle end of the movable rod (113) is fixedly connected to one end of the telescopic rod (114), and the other end of the telescopic rod (114) is fixedly connected to one side of the sub-rod (110).