planter

Abstract

This utility model discloses a seeder, including a sowing unit. The sowing unit includes a hopper and a turntable disposed within the hopper. The side wall of the hopper has a discharge port. The turntable has multiple levers along its circumference for transferring seeds from the hopper to the discharge port. In operation, the turntable rotates, and the levers distributed along its circumference rotate accordingly. As the levers rotate from low to high, they can lift several seeds from the hopper. The side wall of the hopper prevents the seeds from falling prematurely from the lever ends. When the lever ends continue to rotate until they align with the discharge port, the seeds can leak out, completing one sowing cycle. This cycle repeats. The overall structure is simple, not limited by seed length, helps prevent jamming, and has a wide range of applications.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a seeder. Background Technology

[0002] Taking rice as an example, rice seeds are usually scattered randomly in the paddy field based on experience, resulting in uneven sowing, high uncertainty, low yield, high labor intensity for farmers, and low production efficiency. Existing seeders are generally motorized seeders, which are bulky and suitable for plains areas but not for hilly areas. In hilly areas, the traditional method of manual sowing is still widely used.

[0003] Chinese patent document CN220342817U discloses a seeder that uses a continuously rotating turntable to circulate seeds through multiple seed conveying holes, preventing clogging. By placing a seed guard plate on the front side of the turntable, i.e., the side facing the rotation direction after the seed conveying holes are filled, the seeds inside the holes are protected from premature falling out during transport, avoiding seed leakage. Continuous seeding is achieved by using multiple seed conveying holes that do not clog. In this technical solution, the gaps between the seed inlet of the hopper and the turntable, as well as the gaps between the seed guard plate and the turntable, need to be set relatively small (0.1-0.5 mm). Shorter seeds can be sown smoothly, but longer seeds will be affected by the gaps, leading to jamming and malfunction. Utility Model Content

[0004] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide a seeder with a simple structure that can be used for longer seeds and helps to prevent jamming.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A seeder includes a seeding unit, the seeding unit including a hopper and a turntable disposed in the hopper, the side wall of the hopper having a discharge port, and the turntable having a plurality of levers along the circumferential direction for transferring seeds in the hopper to the discharge port.

[0006] As a further improvement to the above technical solution: along the radial direction of the turntable, the side of the lever that moves the seed is an inclined surface.

[0007] As a further improvement to the above technical solution: if the inclination angle of the inclined surface is α, then 0 < α ≤ 3°.

[0008] As a further improvement to the above technical solution: along the axial direction of the turntable, the side of the lever that moves the seed is a concave arc surface in the middle.

[0009] As a further improvement to the above technical solution: the hopper includes two compartments arranged opposite each other, the two compartments are detachably connected, and the discharge port is located on the lower compartment.

[0010] As a further improvement to the above technical solution: the two compartments are connected by a snap-fit ​​mechanism.

[0011] As a further improvement to the above technical solution: the lower compartment is provided with a lower reinforcing rib and a buckle at its upper part, and the upper compartment is provided with an upper reinforcing rib at its lower part, with the upper reinforcing rib being fastened in the buckle.

[0012] As a further improvement to the above technical solution: multiple seeding units are provided, and the multiple seeding units are evenly distributed along the axial direction of the turntable.

[0013] As a further improvement to the above technical solution: the hopper is made of plastic.

[0014] As a further improvement to the above technical solution: the seeder also includes a frame, the frame is connected to a tie rod and has wheels on both sides, the seeding unit is located on the frame, and the turntable is coaxial with the wheels.

[0015] Compared with the prior art, the advantages of this utility model are: The seeder disclosed in this utility model features a rotating turntable during operation. Each lever, distributed along the circumference of the turntable, rotates accordingly. As the lever rotates from low to high, it lifts several seeds from the hopper. The hopper's sidewalls prevent the seeds from falling prematurely from the lever ends. When the lever ends continue rotating to align with the discharge port, the seeds leak out, completing one sowing cycle. This cycle repeats. The overall structure is simple, not limited by seed length, helps prevent jamming, and has a wide range of applications.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the sowing unit in this utility model.

[0018] Figure 2 This is a schematic diagram of the main structure of the sowing unit in this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the seeding unit after the upper compartments are hidden in this utility model.

[0020] Figure 4 This is a schematic diagram of the main structure of the sowing unit after the upper compartments are hidden in this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the turntable in this utility model.

[0022] The labels in the diagram represent: 1. Seeding unit; 2. Feed hopper; 21. Discharge port; 22. Compartment; 23. Buckle; 24. Lower reinforcing rib; 25. Upper reinforcing rib; 3. Turntable; 31. Lever. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Figures 1 to 5This invention illustrates one embodiment of the seeder. The seeder includes a sowing unit 1, which comprises a hopper 2 and a turntable 3 disposed within the hopper 2. The hopper 2 has a discharge port 21 on its side wall. The turntable 3 has multiple levers 31 along its circumference for transferring seeds from the hopper 2 to the discharge port 21. Preferably, in this embodiment, the seeder also includes a frame. The frame is connected to a tie rod and has wheels on both sides. The sowing unit 1 is mounted on the frame (preferably, mounting holes can be provided on the connecting ears of the lower compartment 22, and it can be detachably mounted on the frame using screws or other fasteners). The turntable 3 is coaxial with the wheels. The structure is simple, making it suitable for various scenarios such as plains and hills. It is easy to use. For details, please refer to the seeder disclosed in the applicant's prior application CN220342817U, which will not be described further.

[0028] In this embodiment of the seeder, during operation, the turntable 3 rotates (specifically, the operator manually pulls the lever, thereby moving the frame, and simultaneously the traveling wheels rotate; as the traveling wheels rotate, the turntable 3 also rotates because it is coaxial with the turntable 3), and the levers 31 distributed along the circumference of the turntable 3 rotate accordingly. When the levers 31 rotate from low to high ( Figure 4 The lever 31 rotates clockwise to lift several seeds from the hopper 2. The side wall of the hopper 2 prevents the seeds from falling prematurely from the end of the lever 31. When the end of the lever 31 continues to rotate until it aligns with the discharge port 21, the seeds can leak out from the discharge port 21, thus completing one sowing cycle. This cycle repeats. The overall structure is simple, not limited by seed length, helps prevent jamming, and has a wide range of applications.

[0029] See details Figure 3 and Figure 4 In this embodiment, along the radial direction of the turntable 3, the side of the lever 31 that moves the seed is inclined, which facilitates the smooth sliding of the seed from the end of the lever 31 and its leakage through the discharge port 21, thus completing the sowing.

[0030] In a preferred embodiment, the inclination angle of the inclined surface is α, where 0 < α ≤ 3°. Repeated experiments have shown that this inclination angle allows the seeds to slide smoothly and also helps the end of the lever 31 to pick up an appropriate amount of seeds.

[0031] Furthermore, in this embodiment, along the axial direction of the turntable 3, the side of the lever 31 that moves the seeds is a concave arc surface in the middle, which helps to concentrate the seeds in the middle of the end of the lever 31 and prevents them from falling off from both sides of the axial direction. The structure is reasonable and effective.

[0032] See details Figures 1 to 3In this embodiment, the hopper 2 includes two compartments 22 arranged vertically opposite each other. The two compartments 22 are detachably connected, and the discharge port 21 is located on the lower compartment 22. After the two compartments 22 are connected, they can form a relatively sealed cavity, which helps to prevent the seeds and turntable 3 from being affected by the external environment. At the same time, the upper compartment 22 can be opened to add seeds into the hopper 2 and to maintain the turntable 3.

[0033] In a preferred embodiment, the two compartments 22 are connected by a snap-fit ​​23, which is simple in structure and easy to assemble and disassemble.

[0034] Furthermore, in this embodiment, the lower compartment 22 has a lower reinforcing rib 24 and a snap fastener 23 at its upper part, and the upper compartment 22 has an upper reinforcing rib 25 at its lower part, with the upper reinforcing rib 25 snapped into the snap fastener 23. The lower reinforcing rib 24 and the upper reinforcing rib 25 can improve the rigidity of the two compartments 22, increase the load-bearing capacity, and reduce deformation. By snapping the upper reinforcing rib 25 into place with the snap fastener 23, a reliable connection between the upper and lower compartments 22 can be achieved.

[0035] In a preferred embodiment, multiple sowing units 1 are provided, and the multiple sowing units 1 are evenly distributed along the axial direction of the turntable 3. The simultaneous sowing of multiple sowing units 1 side by side is beneficial to improving sowing efficiency; it is also beneficial to control the consistency of the left and right sowing spacing; while the multiple levers 31 are evenly distributed along the circumference of the turntable 3, which is beneficial to control the consistency of the front and back sowing spacing.

[0036] In a preferred embodiment, the hopper 2 is made of plastic to reduce its weight. Furthermore, the wheels can also be made of plastic. The frame and turntable 3, etc., can be made of commonly used materials such as stainless steel or aluminum alloy.

[0037] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A seeding machine comprising a seeding unit (1), characterized in that: The sowing unit (1) includes a hopper (2) and a turntable (3) located inside the hopper (2). The side wall of the hopper (2) is provided with a discharge port (21). The turntable (3) is provided with a plurality of levers (31) along the circumferential direction for transferring the seeds in the hopper (2) to the discharge port (21).

2. The seeder according to claim 1, characterized in that: Along the radial direction of the turntable (3), the side of the lever (31) that moves the seed is inclined.

3. The seeder according to claim 2, characterized in that: If the inclination angle of the inclined surface is α, then 0 < α ≤ 3°.

4. The seeder according to claim 1, characterized in that: Along the axial direction of the turntable (3), the side of the lever (31) that moves the seed is a concave arc surface in the middle.

5. The seeder according to claim 1, characterized in that: The hopper (2) includes two compartments (22) arranged opposite each other, and the two compartments (22) are detachably connected. The discharge port (21) is located on the lower compartment (22).

6. The seeder according to claim 5, characterized in that: The two compartments (22) are connected by a snap fastener (23).

7. The seeder according to claim 6, characterized in that: The lower compartment (22) has a lower reinforcing rib (24) and a buckle (23) at its upper part, and the upper compartment (22) has an upper reinforcing rib (25) at its lower part, with the upper reinforcing rib (25) being fastened in the buckle (23).

8. The seeder according to claim 1, characterized in that: The seeding unit (1) is provided in multiple units, and the multiple seeding units (1) are evenly distributed along the axis of the turntable (3).

9. The seeder according to claim 1, characterized in that: The hopper (2) is made of plastic.

10. The seeder according to any one of claims 1 to 9, characterized in that: It also includes a frame, which is connected to a tie rod and has wheels on both sides. The sowing unit (1) is located on the frame, and the turntable (3) is coaxial with the wheels.

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