Precision seeder

Abstract

The utility model relates to the technical field of seeding machines, and provides a precision seeding machine which comprises a vehicle body, the vehicle body is provided with a front wheel set, a rear wheel set and a front driving part, and the front driving part is located above the front wheel set; the seeding assembly is arranged on the vehicle body in a lifting mode, located between the front wheel set and the rear wheel set and used for seeding. By means of the technical scheme, the problems that a seeder in the prior art is large in size, poor in stability and inflexible are solved.

Description

Technical Field

[0001] This utility model relates to the field of seeder technology, specifically to a precision seeder. Background Technology

[0002] With the continuous development of modern agriculture, the requirements for crop sowing operations are increasing. Precise, efficient sowing methods that can adapt to diverse field environments have become a key need for agricultural production. As an important agricultural machinery for sowing operations, the performance of the seeder directly affects many aspects of crop planting quality, yield, and the convenience of subsequent field management.

[0003] Traditional seeders have gradually revealed many shortcomings in practical applications. In terms of overall structural layout, many seeders have not fully considered the reasonable positional relationship between key components. For example, the seeding assembly is often not scientifically arranged with the wheel assembly, causing vibrations and bumps generated by the movement of the front and rear wheels to be directly transmitted to the seeding assembly during the seeder's movement. This seriously interferes with the seeding operation, making it difficult for seeds to be sown into the soil at the predetermined precise position and depth. Problems such as seeding position deviation and uneven depth occur, which in turn destroys the regularity of the sowing, hinders the uniform growth of crops, and makes it difficult to carry out subsequent field management work such as irrigation, fertilization, weeding, and harvesting smoothly. Utility Model Content

[0004] This invention proposes a precision seeder that solves the problems of large size, poor stability and inflexibility of existing seeders.

[0005] The technical solution of this utility model is as follows: A precision seeder, comprising:

[0006] The vehicle body has a front wheel assembly, a rear wheel assembly, and a front driver's compartment, with the front driver's compartment located above the front wheel assembly;

[0007] A seeding assembly is raised and lowered on the vehicle body, located between the front wheel assembly and the rear wheel assembly, and is used for seeding.

[0008] As a further technical solution, the seeding component includes:

[0009] Seeding rack;

[0010] The connecting rod assembly includes at least two connecting rods arranged in parallel, with both ends of the connecting rods hinged to the seeding frame and the vehicle body, respectively, and the connecting rods, the seeding frame and the vehicle body forming a four-bar linkage structure;

[0011] The furrowing wheel set includes two furrowing wheels arranged back to back, the furrowing wheels being rotatably mounted on the seeding frame, and the furrowing wheel set being used to create furrows on the ground;

[0012] The soil covering wheel assembly includes two soil covering wheels arranged back to back, the soil covering wheels are rotatably mounted on the seeding frame, and the soil covering wheel assembly is located on one side of the furrowing wheel assembly;

[0013] A seed delivery assembly is provided on the seeding rack for delivering seeds between the two furrowing wheels.

[0014] As a further technical solution, the seeding component also includes:

[0015] A seed pressing block is set on the sowing frame, located between the furrowing wheel set and the covering wheel set. The seed pressing block is used to press the seeds located in the furrows. The seed pressing block is inclined and has a pressing surface.

[0016] As a further technical solution, the seeding component also includes:

[0017] The telescopic drive component is hinged at both ends to the seeding frame and the vehicle body, respectively. After the telescopic drive component extends or retracts, the seeding frame rises or falls.

[0018] As a further technical solution, the seed delivery component includes:

[0019] A container is placed on the seeding rack. The container has an upper opening and is used to hold seeds. The bottom of the container has a seed discharge hole.

[0020] A conveying pipe is installed at the bottom of the container, with one end connected to the seed dispensing hole and the other end being a free end located between the two furrowing wheels.

[0021] As a further technical solution

[0022] The seed pressing block is hinged to the sowing frame. After the seed pressing block is rotated, the pressing surface moves closer to or further away from the ground.

[0023] As a further technical solution

[0024] The seed pressing block has a strip-shaped hole, and a counterweight is slidably disposed in the strip-shaped hole. When the counterweight slides to different positions, the pressing surface exerts different pressures on the ground.

[0025] As a further technical solution

[0026] The pressing surface is a smooth curved surface.

[0027] As a further technical solution, it also includes:

[0028] The limiting rope is connected at one end to the sowing frame and at the other end to the seed pressing block.

[0029] As a further technical solution

[0030] The vehicle body also has an operating platform located above the rear wheel assembly, which is used for carrying goods or people.

[0031] The working principle and beneficial effects of this utility model are as follows:

[0032] In this invention, the seeding component is positioned between the front and rear wheel sets, resulting in a more rational and compact overall structure for the seeder. The front wheel set guides the seeder's direction of travel, while the rear wheel set provides support and propulsion for the entire machine. The seeding component, situated between the two, minimizes interference from vibrations and bumps caused by the movement of the front and rear wheels during the seeder's movement. This relatively stable positioning helps maintain seeding accuracy, ensuring that seeds are sown into the soil at the predetermined position and depth. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0034] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0035] Figure 2 This is a partially enlarged structural diagram of the seed pressing block of this utility model;

[0036] Figure 3 This is a top view of the seed delivery component of this utility model;

[0037] In the diagram: 1-Vehicle body, 11-Front wheel assembly, 12-Rear wheel assembly, 13-Front driver's cab, 14-Operating platform, 2-Sowing assembly, 21-Sowing frame, 22-Connecting rod, 23-Furrowing wheel, 24-Soil covering wheel, 25-Seed conveying assembly, 251-Container, 252-Seed discharge hole, 253-Conveying pipe, 26-Seed pressing block, 261-Pressing surface, 262-Strip hole, 263-Counterweight block, 264-Limiting rope, 27-Telescopic drive component. Detailed Implementation

[0038] The present invention 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 invention and not intended to limit its scope.

[0039] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0040] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 utility model based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly 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.

[0042] 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 utility model.

[0043] 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.

[0044] like Figures 1-3As shown, this utility model proposes a precision seeder, including a vehicle body 1, which has a front wheel assembly 11, a rear wheel assembly 12 and a front driving unit 13, with the front driving unit 13 located above the front wheel assembly 11; a seeding component 2 is ellipsably mounted on the vehicle body 1, located between the front wheel assembly 11 and the rear wheel assembly 12, and is used for seeding.

[0045] In this embodiment, the seeding assembly 2 is positioned between the front wheel assembly 11 and the rear wheel assembly 12, making the overall structure of the seeder more reasonable and compact. The front wheel assembly 11 is responsible for guiding the direction of travel of the seeder, while the rear wheel assembly 12 provides support and propulsion for the entire machine. The seeding assembly 2 is positioned between the two, which minimizes the interference of vibration and bumps caused by the movement of the front and rear wheels on the seeding operation during the movement of the seeder. It is in a relatively stable positional environment, which is conducive to maintaining the accuracy of seeding and ensuring that the seeds are sown into the soil at the predetermined position and depth.

[0046] This layout allows operators to control the seeder's forward movement and steering via the front driving unit 13, while simultaneously observing the working status of the sowing component 2 in real time. As the seeder moves smoothly, the sowing component 2 can sequentially complete a series of actions such as furrowing, sowing, and covering with soil at a suitable rhythm, resulting in better coordination with the overall movement of the seeder. This ensures that the sowing operation can be carried out continuously and efficiently, avoiding problems such as disordered sowing rhythm or missed sowing areas caused by unreasonable layout.

[0047] In addition, the seeding assembly 2 is located between the front wheel assembly 11 and the rear wheel assembly 12, making the overall layout more compact and reasonable. This not only makes the overall size of the seeder relatively smaller and more flexible, adapting to more seeding environments, but also brings the overall center of gravity closer to the middle of the seeder. When working in the field, even if it encounters some uneven ground or slight external interference, the seeder can maintain good balance, ensuring the accuracy and stability of the seeding operation, further helping to improve seeding precision and laying a solid foundation for high-quality seeding operations.

[0048] Furthermore, the sowing assembly 2 includes a sowing frame 21; the connecting rod assembly includes at least two parallel connecting rods 22, the two ends of which are hinged to the sowing frame 21 and the vehicle body 1 respectively, forming a four-bar linkage structure between the connecting rods 22, the sowing frame 21 and the vehicle body 1; the furrowing wheel assembly includes two furrowing wheels 23 arranged in opposite directions, the furrowing wheels 23 are rotatably mounted on the sowing frame 21, and the furrowing wheel assembly is used to open furrows on the ground; the soil covering wheel assembly includes two soil covering wheels 24 arranged in opposite directions, the soil covering wheels 24 are rotatably mounted on the sowing frame 21, and the soil covering wheel assembly is located on one side of the furrowing wheel assembly; the seed conveying assembly 25 is mounted on the sowing frame 21, and the seed conveying assembly 25 is used to convey seeds between the two furrowing wheels 23.

[0049] In this embodiment, the connecting rod group (multiple rods arranged in parallel, forming a structure that allows the sowing assembly 2 to float and move up and down with the ground) in the sowing assembly 2 has at least two parallel connecting rods 22, with their ends hinged to the sowing frame 21 and the vehicle body 1 respectively, forming a four-bar linkage structure. Relying on the stable travel direction of the front wheels 111 and the good travel stability of the entire seeder, this four-bar linkage structure provides reliable support and stability for the sowing frame 21. During the seeder's straight-line travel, the sowing frame 21 maintains a stable posture and will not sway or deviate significantly due to bumps, vibrations in the field, or minor shaking of the seeder itself, thus ensuring the stability of the relative positions of the components within the sowing assembly 2. This allows components such as the furrowing wheel group, the covering wheel group, and the seed conveying assembly 25 to complete furrowing, sowing, and covering operations sequentially and rhythmically according to a predetermined order, ensuring that the sowing operation proceeds in an orderly manner and further improving the accuracy and regularity of sowing.

[0050] Two opposing furrowing wheels 23 of the furrowing wheel assembly are rotatably mounted on the seeding frame 21. When the seeder travels in a straight line with its front wheels 111 providing stability, the furrowing wheels 23 fully utilize this stable travel position, contacting and rotating with the ground at a uniform speed and precise angle to accurately create straight furrows. The depth, width, and row spacing of these furrows remain highly consistent, providing precise positional guidance for subsequent accurate seed sowing and ensuring that seeds are sown in suitable locations, meeting pre-set sowing layout requirements. The covering wheel assembly is located to one side of the furrowing wheel assembly. As the seeder continues to move forward, the covering wheel 24 promptly and evenly covers the seeds along the same straight line, ensuring appropriate soil thickness and accurate positioning. This provides a good growing environment for the seeds while maintaining the overall regularity of the sowing area. The seed delivery component 25, with the help of the stable movement of the seeder and the stable state of the seed frame 21, accurately delivers the seeds into the groove between the two furrowing wheels 23, so that the seed landing point is perfectly matched with the direction of the seeder's movement and the sowing layout, thus ensuring the sowing quality and achieving efficient and precise sowing operations.

[0051] Furthermore, the sowing assembly 2 also includes a seed pressing block 26, which is disposed on the sowing frame 21. The seed pressing block 26 is located between the furrowing wheel assembly and the covering wheel assembly. The seed pressing block 26 is used to press the seeds located in the furrows. The seed pressing block 26 is inclined and has a pressing surface 261.

[0052] In this embodiment, the seed pressing block 26 is mounted on the sowing frame 21, located between the furrowing wheel assembly and the covering wheel assembly, and is inclined with a pressing surface 261. After the seeder, with the front wheels 111, can stably maintain a straight-line travel direction and complete operations such as furrowing, sowing, and covering, the seed pressing block 26, along the steady travel direction of the seeder, uses the inclined pressing surface 261 to press the seeds in the furrows. Due to the reasonable overall structural layout and stable travel of the seeder, the seed pressing block 26 can function stably, ensuring that the seeds are firmly positioned in the soil and that the seed arrangement direction is consistent with the travel direction of the seeder and the sowing layout direction. This not only makes the seeds more firmly rooted but also results in a neat and orderly layout of the sown field, facilitating subsequent crop growth management and harvesting, further enhancing the regularity of sowing, improving the overall sowing quality, and making full use of land resources to ensure that crops grow vigorously according to plan.

[0053] Furthermore, the sowing assembly 2 also includes a telescopic drive component 27, with both ends of the telescopic drive component 27 hinged to the sowing frame 21 and the vehicle body 1, respectively. After the telescopic drive component 27 extends or retracts, the sowing frame 21 rises or falls.

[0054] In this embodiment, considering the different sowing depth requirements of various crop seeds, the telescopic drive component 27, with the help of the stable driving structure of the seeder and the stable driving direction ensured by the front wheels 111, can precisely adjust the overall height of the sowing frame 21, thereby controlling the depth parameters of each related operation. Wheat seeds generally require a shallower sowing depth, while soybean seeds require a relatively deeper burial depth. Through the telescopic adjustment of the telescopic drive component 27, it can be ensured that the furrow-opening wheel 23 opens furrows of appropriate depth, the seed conveying component 25 conveys the seeds to the corresponding depth position, and the seed pressing block 26 can also press the seeds at the accurate depth, so that the seeds are sown and buried at the most suitable soil depth, meeting the needs of diverse crop planting and improving the versatility of the seeder and the accuracy of the sowing effect.

[0055] In addition, the telescopic drive component 27 can also be used to lift the seeding component 2 after seeding is completed to prevent friction and collision with the ground. The telescopic drive component 27 can be an electric cylinder, hydraulic cylinder, etc.

[0056] Furthermore, the seed conveying assembly 25 includes a holding tank 251, which is mounted on the seeding rack 21. The holding tank 251 has an upper opening and is used to hold seeds. The bottom of the holding tank 251 has a seed discharge hole 252. A conveying pipe 253 is mounted at the bottom of the holding tank 251. One end of the conveying pipe 253 is connected to the seed discharge hole 252, and the other end is a free end located between two furrowing wheels 23.

[0057] In this embodiment, the holding bucket 251 in the seed conveying assembly 25 is mounted on the sowing frame 21. It has an upper opening for easy seed loading and a seed discharge hole 252 at the bottom, which is connected to the seed discharge hole 252 via a conveying pipe 253. One end of the conveying pipe 253 is connected to the seed discharge hole 252, and the other end is located between the two furrowing wheels 23. When the seeder travels in a straight line with the front wheels 111 maintaining a stable direction, the seeds in the holding bucket 251 are in a relatively stable state thanks to the stable environment created by the overall structure of the seeder. They will not scatter randomly due to the bumps or shaking of the seeder. When the sowing operation begins, the seeds, relying on their own weight and possibly some auxiliary conveying mechanisms such as slight vibration, orderly pass through the seed discharge hole 252 into the conveying pipe 253 and are accurately conveyed into the furrows opened in a predetermined direction between the two furrowing wheels 23, following the stable travel direction of the seeder. The entire seed delivery process is highly matched with the pace of the seeder and the direction of the sowing layout, ensuring that the seeds can be sown in the field in the planned order and position. This achieves precise transfer of seeds from storage to the sowing point, ensuring the accuracy of sowing and laying the foundation for uniform growth of crops.

[0058] Because of the rational overall structure of the seeder, the front wheels 111 can maintain a stable straight-line movement, and the environment in which the seed conveying assembly 25 is located is relatively stable, reducing the interference of external factors on the seed conveying process. This allows the seeds in the container 251 to pass smoothly through the seed discharge hole 252 into the conveying pipe 253, reducing the probability of seed spillage or blockage during conveying, further ensuring that the seeds can be accurately conveyed to the predetermined sowing position, and improving the accuracy and reliability of seed conveying.

[0059] Furthermore, the seed pressing block 26 is hinged on the sowing frame 21. After the seed pressing block 26 rotates, the pressing surface 261 rises or falls.

[0060] In this embodiment, the seed pressing block 26 is hinged to the sowing frame 21, and its pressing surface 261 rises or falls after rotation. While the seeder travels in a straight line using the stable direction provided by the front wheels 111, the operator can flexibly rotate the seed pressing block 26 to adjust the angle of the pressing surface 261 according to different soil surface conditions, such as the presence of clods, unevenness, and the pressing angle requirements of different crop seeds. This allows for better contact between the seed and soil surface, achieving more precise and effective seed pressing. This optimizes the contact state between the seed and soil, improves seed burial quality, ensures the seed is compacted at the appropriate angle and position, which is beneficial for subsequent seed germination and growth, enhances the seeder's adaptability to complex sowing scenarios, and ensures good sowing quality and uniformity under various field conditions.

[0061] Furthermore, a strip-shaped hole 262 is provided on the seed pressing block 26, and a counterweight 263 is slidably disposed in the strip-shaped hole 262. After the counterweight 263 slides to different positions, the pressing surface 261 exerts different pressures on the ground.

[0062] In this embodiment, the seed pressing block 26 has a strip-shaped hole 262, and a counterweight 263 is slidably disposed within the strip-shaped hole 262. When the counterweight 263 slides to different positions, the pressing surface 261 exerts different pressures on the ground. Based on the stable structure of the seeder and the stable sowing environment provided by the stable movement of the front wheels 111, the operator can precisely adjust the pressure of the pressing surface 261 on the ground by changing the position of the counterweight 263 within the strip-shaped hole 262, according to the different pressing pressure requirements of different types of seeds, such as seeds of varying sizes, weights, and hardness. This meets the personalized pressing pressure requirements of different crop seeds, improves the versatility and sowing effect of the seeder, and provides a strong guarantee for the vigorous growth of crops.

[0063] Meanwhile, the adjustable design of the counterweight 263 allows operators to adjust the pressing pressure according to changes in soil conditions when faced with different soil compaction (such as loose sandy soil and compacted clay soil). With the help of the overall stable structure of the seeder, the seed pressing operation can better adapt to various soil conditions, maintain the consistency and stability of the sowing effect, enhance the seeder's adaptability to different soil environments, and ensure that the sowing quality is not affected by soil differences.

[0064] Furthermore, the pressing surface 261 is a smooth curved surface.

[0065] In this embodiment, even if the field surface is slightly undulating or vibrating during the movement of the seeder, the smooth curved pressing surface 261 can always maintain good contact with the seeds and soil, and will not cause uneven pressing or loss of contact due to factors such as bumps. With the overall stability of the seeder, it is ensured that each seed pressing operation can be carried out stably and effectively, and sowing can be maintained.

[0066] Furthermore, it also includes a limiting rope 264, one end of which is connected to the sowing frame 21, and the other end is connected to the seed pressing block 26.

[0067] In this embodiment, one end of the limiting rope 264 is connected to the seeding frame 21, and the other end is connected to the seed pressing block 26, playing an important role in the overall structure of the seeder. On the one hand, the limiting rope 264 can connect the seed pressing block 26, preventing the seed pressing block 26 from being damaged and falling off; on the other hand, it can limit the pressing depth of the seed pressing block 26.

[0068] The operating platform 14, located above the rear wheel assembly 12 on the vehicle body 1, serves as a cargo or personnel carrier, significantly expanding the seeder's application scenarios and practicality. In actual agricultural production, the operating platform 14 can hold additional sowing tools, spare seeds, fertilizers, and other supplies, allowing operators to easily access them during the sowing process without frequent trips between the field and storage, saving time and energy and improving sowing efficiency. Furthermore, when multiple people are needed to complete sowing tasks or perform complex field operations, the operating platform 14 can also support other workers, providing them with a relatively stable and safe standing or operating space. This facilitates collaborative tasks such as checking sowing quality and adjusting sowing parameters, enhancing the seeder's adaptability to multi-person operation scenarios and enabling it to better meet the needs of agricultural production of varying scales and complexities.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A precision seeder, characterized in that, include: The vehicle body (1) has a front wheel assembly (11), a rear wheel assembly (12) and a front driver's compartment (13), the front driver's compartment (13) being located above the front wheel assembly (11); The seeding assembly (2) is raised and lowered on the vehicle body (1). The seeding assembly (2) is located between the front wheel assembly (11) and the rear wheel assembly (12). The seeding assembly (2) is used for seeding.

2. The precision seeder according to claim 1, characterized in that, The seeding component (2) includes: Seeding rack (21); The connecting rod assembly includes at least two parallel connecting rods (22), the two ends of which are hinged to the seeding frame (21) and the vehicle body (1) respectively, and the connecting rods (22), the seeding frame (21) and the vehicle body (1) form a four-bar linkage structure; The furrowing wheel set includes two furrowing wheels (23) arranged back to back. The furrowing wheels (23) are rotatably mounted on the seeding frame (21). The furrowing wheel set is used to open furrows on the ground. The soil covering wheel set includes two soil covering wheels (24) arranged back to back. The soil covering wheels (24) are rotatably mounted on the seeding frame (21). The soil covering wheel set is located on one side of the furrowing wheel set. A seed delivery assembly (25) is disposed on the seeding rack (21) for delivering seeds between the two furrowing wheels (23).

3. A precision seeder according to claim 2, characterized in that, The seeding component (2) also includes: Seed pressing block (26) is set on the seeding frame (21). The seed pressing block (26) is located between the furrowing wheel group and the covering wheel group. The seed pressing block (26) is used to press the seeds located in the furrow. The seed pressing block (26) is set at an angle and has a pressing surface (261).

4. A precision seeder according to claim 2, characterized in that, The seeding component (2) also includes: The telescopic drive component (27) is hinged at both ends to the seeding frame (21) and the vehicle body (1), respectively. After the telescopic drive component (27) extends or retracts, the seeding frame (21) rises or falls.

5. A precision seeder according to claim 2, characterized in that, The seed delivery assembly (25) includes: A container (251) is set on the seeding rack (21). The container (251) has an upper opening and is used to hold seeds. The bottom of the container (251) has a seed discharge hole (252). A conveying pipe (253) is provided at the bottom of the container (251). One end of the conveying pipe (253) is connected to the seed discharge hole (252), and the other end is a free end located between the two furrowing wheels (23).

6. A precision seeder according to claim 3, characterized in that, The seed pressing block (26) is hinged on the seeding frame (21). After the seed pressing block (26) rotates, the pressing surface (261) moves closer to or further away from the ground.

7. A precision seeder according to claim 6, characterized in that, The seed pressing block (26) has a strip-shaped hole (262), and a counterweight (263) is slidably disposed in the strip-shaped hole (262). When the counterweight (263) slides to different positions, the pressing surface (261) exerts different pressures on the ground.

8. A precision seeder according to claim 7, characterized in that, The pressing surface (261) is a smooth curved surface.

9. A precision seeder according to claim 8, characterized in that, Also includes: The limiting rope (264) is connected at one end to the seeding frame (21) and at the other end to the seed pressing block (26).

10. A precision seeder according to claim 2, characterized in that, The vehicle body (1) also has an operating platform (14) located above the rear wheel assembly (12), and the operating platform (14) is used for carrying goods or people.

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