A precision seed seeder and a seeding machine comprising the same

Abstract

This invention discloses a precision seed planter and a seeder containing the same, belonging to the technical field of seeding equipment. The precision seed planter includes: a roller assembly with a seed storage cavity for storing seeds, and multiple seed outlets spaced circumferentially on the roller surface; multiple seed picking structures, each corresponding to a seed outlet and spaced circumferentially within the seed storage cavity, each seed picking structure having multiple seed picking holes spaced along the axial direction of the roller assembly, each seed picking hole capable of holding one seed; and multiple seed picking hole infeed constraint structures, each corresponding to a seed picking structure, detachably connected to the seed picking structure, and capable of opening and closing the seed picking holes. The precision seed planter of this invention facilitates adjustment of the seed quantity and enables precise seed picking and dispensing.

Description

Technical Field

[0001] This invention relates to the field of seeding equipment technology, and in particular to a precision seed planter and a seeder containing the same. Background Technology

[0002] Currently, the existing seeders are mainly drum-type seeders. The seed-collecting mechanism inside the drum-type seeder mainly includes a seed-collecting hole, a seed inlet, and a seed inlet channel. The drum-type seeder also has a seed storage chamber and a seed outlet. The seed-collecting mechanism collects and dispenses seeds as the drum-type seeder rotates. During the seed-collecting process in the seeding area, two or more seeds in the seed storage chamber enter the seed-collecting hole through the seed inlet channel. Then, other excess seeds are filtered and removed. As the drum-type seeder rotates, the seeds that have entered the seed-collecting hole are discharged in the seeding area to complete the seeding.

[0003] However, the seed-collecting mechanism in existing roller seeders has a problem during the seed-collecting process. Because the seed-collecting hole can collect two or more seeds in one seed-collecting cycle, and the seeds are different in size, the posture and movement direction of the seeds stored in the seed storage cavity are chaotic during the rolling of the roller seeder. This results in an uncertain number of seeds that can enter the seed-collecting hole, and an uncertain number of seeds that are released each time, which in turn leads to uneven seedling emergence in the later stage.

[0004] Furthermore, in the existing roller-type seeders, during the seed collection process, two or more seeds in the seed storage chamber can enter the seed inlet channel at the same time. The multiple seeds squeeze each other, which can easily cause blockage of the seed inlet channel. As a result, the seeds cannot enter the seed collection hole normally, leading to seed shortages and seedling loss later on.

[0005] Furthermore, the seed quantity of existing roller-type seeders is not easily adjustable, making it difficult to adjust the seed quantity according to the different seeding requirements of different planting lands. Current roller-type seeders mainly adjust the seed quantity by changing the size of the seed-collecting hole, but this method requires disassembling the entire roller-type seeder and replacing it with a seed-collecting mechanism of a suitable size, making the modification of the roller-type seeder difficult and labor-intensive. Therefore, there is an urgent need for a seeder that allows for easy adjustment of the seed quantity and precise seed collection and distribution. Summary of the Invention

[0006] The purpose of this invention is to overcome at least one deficiency of the prior art and to provide a precision seed planter that is easy to adjust the seed quantity and can accurately pick up and plant seeds. In addition, a seeder is also provided.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A precision seed planter, comprising:

[0008] A roller assembly, wherein the roller assembly is provided with a seed storage cavity for storing seeds, and the roller assembly has a plurality of seed discharge outlets spaced apart circumferentially on the wheel surface, and the plurality of seed discharge outlets are respectively connected to the seed storage cavity;

[0009] The seed-collecting structure includes multiple seed-collecting structures, which are circumferentially spaced within the seed storage cavity along the inner wheel surface of the roller assembly, corresponding to the seed discharge outlet. Each seed-collecting structure has multiple seed-collecting holes spaced along the axial direction of the roller assembly for collecting seeds. Each seed-collecting hole can hold one seed. During the rolling of the roller assembly, a seed-collecting area, a seed-storing area, and a seed-dispensing area are formed within the roller assembly.

[0010] The seed-taking hole constraint structure is provided in multiple ways, each corresponding to a seed-taking structure. The multiple seed-taking hole constraint structures are detachably connected to the seed-taking structure, and each seed-taking hole constraint structure can open and close the seed-taking hole respectively.

[0011] During the rolling process of the roller assembly, in the seed feeding area, seeds enter the seed picking hole in the open state on the seed picking structure located in the seed feeding area; in the seed storage area, the seeds that have entered the seed picking hole are stored in the open state on the seed picking structure located in the seed storage area; in the seed dispensing area, the seeds stored in the seed picking hole on the seed picking structure located in the seed dispensing area are dispensed and discharged through the seed discharge outlet.

[0012] The beneficial effects of this invention are as follows: In this embodiment, each seed-collecting hole can hold one seed, ensuring that each seed-collecting hole only holds one seed in the seed-infeeding area, thereby ensuring that each seed-collecting hole discharges only one seed in the seed-discharging area. Furthermore, the number of seed-collecting holes on each seed-collecting structure is fixed, and each seed-collecting structure extracts a fixed number of seeds in one seed-collecting cycle and discharging a fixed number of seeds in one seed-discharging cycle, thus achieving precise seed collection and discharging. Further, the opening and closing states of the seed-collecting holes are controlled by the seed-collecting hole entry constraint structure, thereby restricting the entry of seeds into the seed-collecting holes. This facilitates the restriction of some seed-collecting holes from entering the seed-collecting holes, thereby adjusting the seed-collecting structure in one seed-collecting cycle. The number of seeds retrieved in each planting cycle allows for adjustment of the amount of seeds dispensed by the precision seed planter in each planting cycle. Furthermore, the seed-taking hole constraint structure is detachable. By changing the appropriate seed-taking hole constraint structure according to the seed-taking requirements of the land to be planted, the on / off state of the seed-taking holes can be controlled to restrict seed intake. This restricts the intake of a specific number of seed-taking holes, ensuring that each seed-taking structure has a suitable number of seed-taking holes for seed retrieval, storage, and dispensing. This allows for adjustment of the seed-dispensing amount by the precision seed planter, meeting the seed-dispensing requirements of different lands to be planted, improving the applicability of the precision seed planter to various lands, and the method of adjusting the seed-dispensing amount is simple and easy to implement.

[0013] In addition, based on the above technical solution, the present invention can be further improved as follows, and can also have the following additional technical features.

[0014] According to one embodiment of the present invention, the precision seed planter further includes:

[0015] The seed-in-soil mechanism is used to put the seeds discharged from the seed outlet into the soil. The seed-in-soil mechanism is provided in multiple ways corresponding to the multiple seed outlets. The multiple seed-in-soil mechanisms are circumferentially spaced on the outer wheel surface of the roller assembly. The seed-in-soil mechanism is provided with a seed transmission channel communicating with the seed outlet.

[0016] During the rolling process of the roller assembly, in the seed feeding area, the seeds stored in the seed picking hole on the seed picking structure located in the seed feeding area are discharged from the seed discharge outlet and enter the soil through the seed transmission channel.

[0017] In this embodiment, multiple seed-injection mechanisms are connected to the outer wheel surface of the roller assembly, which facilitates the injection of seeds into the soil. This ensures that the position and depth of the seeds in the soil are suitable, and also improves the uniformity of seed distribution after being injected into the soil, which is beneficial for reasonable dense planting and increasing yield.

[0018] According to an embodiment of the present invention, the seed-taking structure is provided with a connecting part one, and the seed-taking hole-entry constraint structure is provided with a connecting part two corresponding to the connecting part one, which can be detachably connected to the connecting part one, and the connecting part two is detachably connected to the connecting part one.

[0019] In this embodiment, by detachably connecting the second connecting part to the first connecting part, it is convenient to detachably connect the seed-taking hole seed-entry constraint structure to the seed-taking structure, thereby facilitating the disassembly and assembly of the seed-taking hole seed-entry constraint structure and making it easier to replace and maintain the seed-taking hole seed-entry constraint structure.

[0020] According to one embodiment of the present invention, the seed-collecting structure has an installation groove on one side where the seed-collecting hole is provided, along the axial direction of the roller assembly. The installation groove is respectively connected to the seed-collecting hole and extends to the outer periphery of the seed-collecting hole.

[0021] The seed-taking hole constraint structure is detachably installed in the mounting groove. The seed-taking hole constraint structure has a number of seed passage openings for passing seeds to pass through, corresponding to a number of seed-taking holes among a number of seed-taking holes. After the seed-taking hole constraint structure is inserted into the mounting groove and the number of seed passage openings are aligned with the number of seed-taking holes, the seed-taking hole constraint structure blocks the seed-taking holes on the seed-taking structure that do not have a seed passage opening aligned with them.

[0022] In this embodiment, by providing an installation groove on the seed-collecting structure, the seed-collecting hole constraint structure can be detachably installed in the installation groove, improving the reliability of the seed-collecting hole constraint structure installation. Furthermore, the seed-collecting hole constraint structure is provided with several seed passages, which facilitates the restriction of seed entry into seed-collecting holes that do not have a seed passage directly opposite them. This ensures that each seed-collecting structure has a suitable number of seed-collecting holes for seed collection, storage, and placement. In addition, it simplifies the structure of the seed-collecting hole constraint structure, which helps to reduce the production and use costs of the precision seed planter.

[0023] According to one embodiment of the present invention, the roller assembly has a plurality of insertion ports on its axial side corresponding to a plurality of mounting grooves, and the seed-taking hole seed-entry constraint structure can be inserted into the insertion ports and detachably installed in the mounting groove.

[0024] In this embodiment, multiple insertion ports are provided on the axial side of the roller assembly, facilitating the insertion and installation of the seed-taking hole constraint structure into the mounting groove. When it is necessary to adjust the seed quantity of the precision seed planter, the original seed-taking hole constraint structure can be removed from the insertion port without disassembling the roller assembly. Then, according to the seed quantity requirements of the land to be sown, a suitable seed-taking hole constraint structure is replaced to control the opening and closing state of the seed-taking hole to restrict seed entry. This allows for the adjustment of the seed quantity of the precision seed planter, facilitating rapid adjustment of the seed quantity to meet the seed quantity requirements of different lands to be sown. Furthermore, it eliminates the need to disassemble the roller assembly, making the adjustment of the seed quantity of the precision seed planter minimally invasive and easy to operate.

[0025] According to one embodiment of the present invention, the precision seed planter further includes:

[0026] A locking mechanism is used to lock the seed-taking hole seed-entry constraint structure. The locking mechanism is connected to the roller assembly. The seed-taking hole seed-entry constraint structure is connected to the locking mechanism and fixed to the roller assembly under the locking action of the locking mechanism.

[0027] In this embodiment, the seed-taking hole and seed-entry constraint structure is locked by a locking mechanism, which helps to fix and limit the seed-taking hole and seed-entry constraint structure, ensuring that the position of the seed-taking hole and seed-entry constraint structure is fixed. Furthermore, the locking mechanism can also support and protect the seed-taking hole and seed-entry constraint structure, further improving the reliability of the installation of the seed-taking hole and seed-entry constraint structure.

[0028] According to one embodiment of the present invention, the precision seed planter further includes:

[0029] Multiple seed posture adjustment structures are provided, each corresponding to a seed picking structure. These multiple seed posture adjustment structures are circumferentially rotatable and installed in the seed storage cavity, close to the seed picking structure along the axial direction of the roller assembly. Each seed posture adjustment structure has multiple seed posture adjustment slots on the side facing the seed picking structure, corresponding to multiple seed picking holes, for adjusting the posture of the seeds. The seed posture adjustment slots are open on the side facing the seed picking structure, and their contours are adapted to the shape of the seeds. Each seed posture adjustment slot can adjust the posture of the seeds close to it and sequentially accommodate and face the open seed picking hole, passing through a seed whose posture is adapted to the seed posture adjustment slot.

[0030] A swing drive mechanism is installed on the roller assembly. The seed posture adjustment structure is connected to the swing drive mechanism and can swing relative to the seed picking structure under the drive of the swing drive mechanism.

[0031] During the rolling of the roller assembly, in the seed feeding area, the seed posture adjustment groove adjusts the posture of the seeds close to it, and the seeds whose posture matches the seed posture adjustment groove enter the seed posture adjustment groove of the seed posture adjustment structure located in the seed feeding area; in the seed storage area, the seeds that have entered the seed posture adjustment groove enter and are stored in the seed retrieval hole of the seed retrieval structure located in the seed storage area, which is in an open state; in the seed dispensing area, the seeds stored in the seed retrieval hole are dispensed from the seed retrieval hole of the seed retrieval structure located in the seed dispensing area and discharged through the seed discharge outlet.

[0032] In this embodiment, the seed posture adjustment structure has multiple seed posture adjustment slots corresponding to multiple seed picking holes for adjusting the posture of the seeds. Driven by the swing drive mechanism, the seed posture adjustment structure swings relative to the seed picking structure, causing the seeds near the seed posture adjustment slots to adjust their posture. This facilitates the adaptation of the seed posture of the seeds near the slots to the slots, allowing them to enter the seed picking holes after their postures are adapted, thus improving the smoothness of seed entry and preventing seed shortages in open seed picking holes. Furthermore, each seed posture adjustment slot can only accommodate and allow one seed with a posture adapted to it, preventing multiple seeds from simultaneously crowding into the slots and causing blockages, further improving the accuracy of the precision seed planter in picking and planting seeds.

[0033] According to one embodiment of the present invention, the roller assembly includes:

[0034] The support shaft is horizontally positioned.

[0035] A fixed disc is fixedly connected to the support shaft perpendicularly to the support shaft;

[0036] A rolling disc is rotatably mounted on the support shaft, parallel to the fixed disc;

[0037] A circular wheel body is fixedly connected to the rolling disk near the edge of the rolling disk. The circular wheel body is located between the fixed disk and the rolling disk. The fixed disk movably abuts against one side of the circular wheel body. The inner wheel surface of the circular wheel body is provided with an annular groove. The wheel surface of the circular wheel body is provided with a plurality of seed discharge outlets at equal intervals. The seed discharge outlets communicate with the annular groove. A plurality of seed picking structures are installed in the annular groove. The seed posture adjustment structure includes a rotating connection part and a seed posture adjustment part. The two ends of the rotating connection part along the axial direction of the roller assembly are respectively rotatably installed on the circular wheel body. The seed posture adjustment part is located in the annular groove, and one end of the seed posture adjustment part is connected to the rotating connection part. The other end of the seed posture adjustment part extends away from the rotating connection part to form a free end. A plurality of seed posture adjustment grooves are provided at intervals on the free end of the seed posture adjustment part. The rotating connection part is connected to the swing drive mechanism and can swing relative to the seed picking structure under the drive of the swing drive mechanism.

[0038] In the seed feeding area, the seed posture adjustment structure, driven by the swing drive mechanism, swings close to the wheel surface of the roller assembly to open the seed picking hole. When the seed feeding channel formed between the seed picking hole and the seed posture adjustment groove is fully opened, the seeds located in the seed posture adjustment groove can enter the seed picking hole from the seed posture adjustment groove.

[0039] In the seed storage area, the seed posture adjustment structure, driven by the swing drive mechanism, swings away from the wheel surface of the roller assembly to open the seed picking hole. The seed picking structure storing the seeds rolls towards the top of the roller assembly, and the seeds located in the seed picking hole remain in the seed picking hole during the rolling process; or at least a part of the seed posture adjustment structure blocks the seed picking hole, and the seed posture adjustment structure can block and restrict the seeds located in the seed picking hole within the seed picking hole.

[0040] In the seeding area, the seed posture adjustment structure, driven by the swing drive mechanism, swings away from the wheel surface of the roller assembly to open the seed picking hole. When the seed picking hole and the seed discharge outlet are fully open, the seeds in the seed picking hole can be thrown out from the seed picking hole and discharged from the seed discharge outlet.

[0041] In this embodiment, an annular groove is provided on the annular wheel body of the roller assembly, which facilitates the installation of the seed picking structure and the seed posture adjustment structure in the annular groove. In addition, a support shaft is provided on the roller assembly, which facilitates fixing the roller assembly to the frame of the seeder by fixing it to the frame of the seeder, and facilitates the quick installation of the precision seed planter on the frame of the seeder.

[0042] According to one embodiment of the present invention, the precision seed planter further includes:

[0043] Multiple elastic blocking structures are provided, each corresponding to a seed posture adjustment structure. One end of each elastic blocking structure is connected to the outside of the seed posture adjustment structure, and the other end of each elastic blocking structure extends to the outer port of the seed posture adjustment groove and blocks the outside of the seed posture adjustment groove.

[0044] Within the seed-feeding area, during the process of the seed posture adjustment groove aligning the seeds close to it, the elastic blocking structure blocks the seeds entering the seed posture adjustment groove from the outside of the seed posture adjustment groove and guides the seeds to move toward the seed-taking hole, which is in an open state and is positioned directly opposite the seed posture adjustment groove.

[0045] In this embodiment, an elastic blocking structure is provided. Seeds partially entering the seed attitude adjustment groove are compressed by other seeds, causing the elastic blocking structure to deform elastically. This allows the partially entered seeds to easily fall completely into the seed attitude adjustment groove, further improving the smoothness of seed entry. Additionally, the elastic blocking structure can also block seeds entering the seed attitude adjustment groove and guide them towards the open seed-taking hole, which is directly opposite the seed attitude adjustment groove. This further improves the smoothness of seed entry into the open seed-taking hole, helping to avoid seed shortages in the open seed-taking hole, and thus further improving the accuracy of the precision seed planter in seed picking and sowing.

[0046] In addition, the present invention also provides a seeder, comprising: a traction device for driving the seeder to move; a frame connected to the traction device; a precision seed planter, wherein multiple precision seed planters are provided and an array of multiple precision seed planters are installed on the frame; and a seed storage box installed on the frame, wherein the seed storage box is connected to the seed storage cavity through a seed delivery pipe.

[0047] In this embodiment, the seeder has multiple precision seed planters arrayed on its frame. This allows for precise seed picking and application simultaneously using multiple precision seed planters, and the accurate adjustment of the seed quantity applied by each precision seed planter in each application cycle facilitates uniform sowing. Furthermore, the seed quantity applied by the precision seed planter in each application cycle is easily adjustable. The amount of seed applied by the precision seed planter in each application cycle can be adjusted according to the seed quantity requirements of the land to be sown, thus regulating the seed application rate and meeting the seed quantity needs of different land types, thereby improving the seeder's applicability to various land types. Additionally, a seed storage box is installed on the frame, facilitating the input of seeds stored in the seed storage box into the seed storage cavity. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in this invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of the precision seed planter according to an embodiment of the present invention;

[0050] Figure 2 for Figure 1 A schematic diagram of the precision seed planter after the fixing disc has been removed;

[0051] Figure 3 for Figure 2 A front view of the precision seed planter after it has been aligned.

[0052] Figure 4 for Figure 1 Rear view of the precision seed planter after it has been aligned;

[0053] Figure 5 for Figure 2 A schematic diagram of the precision seed planter after removing multiple seed-inserting mechanisms.

[0054] Figure 6 This is a schematic diagram of the seed-taking structure, the seed-taking hole constraint structure, the seed posture adjustment structure, and the seed-taking mechanism composed of a brush, according to an embodiment of the present invention.

[0055] Figure 7 This is an exploded view of the seed picking structure, the seed picking hole seed insertion constraint structure, the seed posture adjustment structure, the brush, and the torsion spring, according to an embodiment of the present invention.

[0056] The attached diagram lists the components represented by each number as follows:

[0057] 1. Roller assembly; 2. Seed picking structure; 3. Seed posture adjustment structure; 4. Seed picking hole insertion constraint structure; 5. Brush; 6. Swing arm; 7. Pin; 8. Torsion spring; 9. Seeding nozzle; 10. Support shaft; 11. Fixed disc; 12. Seed conveying pipe; 13. Blocking annular disc; 14. Rolling disc; 15. Swing drive ring; 16. Support ring one; 17. Support ring two; 18. Fixing bolt; 20. Mounting protrusion; 21. Support block; 22. Arc-shaped rotating clearance groove; 23. Mounting groove body; 24. Seed picking hole; 30. Rotating shaft; 31. Seed posture adjustment part; 32. Rotating support sleeve two; 40. Seed passage; 50. Brush seat; 51. Brush bristles; 60. Swing connecting arm; 6 1. Stop shaft; 90. Rotating rocker; 91. Seed opening closing baffle; 92. Fixing part; 93. Return spring; 101. Locking nut one; 102. Washer one; 103. Limiting bushing; 111. Observation port; 112. Seed discharge port; 113. Supporting protrusion ring; 121. Connecting ear one; 141. Connecting protrusion; 142. Supporting sleeve one; 143. Supporting bearing; 144. Washer two; 145. Locking nut two; 146. Locking part; 151. Swing drive protrusion rail; 152. Connecting ear two; 171. Seed discharge port; 301. Mounting head; 311. Seed posture adjustment groove; 312. Brush mounting groove; 601. Insertion through groove; 602. Pin hole one; 603. Limiting through hole; 3011. Pin hole two. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0059] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0060] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0061] This embodiment provides a precision seed planter, such as... Figures 1 to 7 As shown, it includes:

[0062] The roller assembly 1 has a seed storage cavity for storing seeds. The roller assembly 1 has multiple seed discharge outlets 171 spaced around its wheel surface. The multiple seed discharge outlets 171 are respectively connected to the seed storage cavity.

[0063] The seed picking structure 2 is provided in multiple ways. The multiple seed picking structures 2 are installed in the seed storage cavity at intervals along the inner side of the roller assembly 1, corresponding to the seed discharge outlet 171. The seed picking structure 2 is provided with multiple seed picking holes 24 at intervals along the axial direction of the roller assembly 1 for picking up seeds. Each seed picking hole 24 can hold one seed. During the rolling process of the roller assembly 1, the roller assembly 1 forms a seed feeding area for seed picking structure 2 to feed seeds, a seed storage area for seed picking structure 2 to store seeds, and a seed dispensing area for seed picking structure 2 to dispensing seeds.

[0064] The seed-taking hole and seed-entry constraint structure 4 is provided in multiple ways, each corresponding to a seed-taking structure 2. The multiple seed-taking hole and seed-entry constraint structures 4 are detachably connected to the seed-taking structure 2, and the seed-taking hole and seed-entry constraint structures 4 can open and close the seed-taking hole 24 respectively.

[0065] During the rolling process, in the seed feeding area, seeds enter the open seed picking hole 24 on the seed picking structure 2 located in the seed feeding area; in the seed storage area, the seeds that have entered the seed picking hole 24 are stored in the open seed picking hole 24 on the seed picking structure 2 located in the seed storage area; in the seed dispensing area, the seeds stored in the seed picking hole 24 on the seed picking structure 2 located in the seed dispensing area are dispensed and discharged through the seed discharge outlet 171.

[0066] In this embodiment, as Figures 1 to 7As shown, by ensuring that each seed-collecting hole 24 can hold one seed, it is guaranteed that each seed-collecting hole 24 only holds one seed in the seed-infeeding area, thereby ensuring that only one seed is discharged from each seed-collecting hole 24 in the seed-discharging area. Furthermore, the number of seed-collecting holes 24 on each seed-collecting structure 2 is fixed, and each seed-collecting structure 2 extracts a fixed number of seeds in one seed-collecting cycle and discharging a fixed number of seeds in one seed-discharging cycle, thus achieving precise seed collection and discharging. Further, the seed-collecting hole entry constraint structure 4 controls the opening and closing states of the seed-collecting holes 24, thereby restricting the entry of seeds into the seed-collecting holes 24. This allows for the restriction of some seed-collecting holes 24 from entering the seed-collecting area, thereby adjusting the seed-collecting structure 2's seed-discharging capacity within one seed-collecting cycle. The number of seeds taken out in each planting cycle allows for adjustment of the number of seeds placed by the precision seed planter in each planting cycle. Furthermore, the seed-taking hole constraint structure 4 is detachable. Based on the seed quantity requirements of the land to be planted, the on / off state of the seed-taking holes 24 can be controlled by replacing the appropriate seed-taking hole constraint structure 4 to restrict seed placement. This restricts the placement of a fixed number of seed-taking holes 24, ensuring that each seed-taking structure 2 has a suitable number of seed-taking holes 24 for seed taking, storing, and placing, thus adjusting the seed quantity of the precision seed planter to meet the seed quantity requirements of different lands to be planted. This improves the applicability of the precision seed planter to different lands, and the method of adjusting the seed quantity of the precision seed planter is simple and easy to implement.

[0067] One embodiment of the present invention, such as Figures 1 to 4 As shown, the precision seed planter also includes a seed-infeeding mechanism for inserting seeds discharged from the seed outlet 171 into the soil. Multiple seed-infeeding mechanisms are provided corresponding to multiple seed outlets 171. Multiple seed-infeeding mechanisms are circumferentially spaced on the outer wheel surface of the roller assembly 1. The seed-infeeding mechanism is provided with a seed transmission channel communicating with the seed outlet 171. During the rolling process of the roller assembly 1, in the seed-infeeding area, the seeds stored in the seed-taking hole 24 on the seed-taking structure 2 located in the seed-infeeding area are discharged from the seed outlet 171 and enter the soil through the seed transmission channel.

[0068] In this embodiment, as Figures 1 to 4 As shown, multiple seed-infeeding mechanisms are connected to the outer wheel surface of the roller assembly 1, which facilitates the insertion of seeds into the soil. This ensures that the position and depth of the seeds in the soil are suitable, and also improves the uniformity of seed distribution after being inserted into the soil, which is conducive to reasonable dense planting and increased yield.

[0069] In this embodiment, as Figures 1 to 4As shown, the seed-into-soil mechanism in this embodiment is a seeding nozzle 9, and multiple seeding nozzles 9 are installed on the outer wheel surface of the roller assembly 1, corresponding one-to-one with multiple seed discharge outlets 171. Furthermore, the seeding nozzle 9 in this embodiment includes a fixing part 92, a nozzle closing baffle 91, a rotating rocker 90, and a return spring 93. The fixing part 92 is provided with a seeding channel, and the fixing part 92 is fixedly connected to the outer wheel surface of the roller assembly 1, and the seeding channel is connected to the seed discharge outlet 171.

[0070] Furthermore, such as Figures 1 to 4 As shown, the lower end of the nozzle closing baffle 91 is rotatably connected to the fixed part 92. One end of the rotating rocker 90 is fixedly connected to the lower end of the nozzle closing baffle 91. The nozzle closing baffle 91 can rotate relative to the fixed part 92 under the drive of the rotating rocker 90 to open and close the seeding channel. The other end of the rotating rocker 90 extends away from the nozzle closing baffle 91 to form an arc-shaped free end. The middle of the free end of the rotating rocker 90 is provided with a clearance for avoiding the fixed part 92 that is close to it during rotation. One end of the return spring 93 is connected to the free end of the rotating rocker 90, and the other end of the return spring 93... The end is connected to the wheel surface of the roller assembly 1, and each rotating rocker 90 is supported by two return springs 93. The two return springs 93 are located on both sides of the clearance opening. When the free end of the rotating rocker 90 is subjected to pressure on the wheel surface of the roller assembly 1, the return spring 93 is compressed, and the rotating rocker 90 drives the hole closing baffle 91 to rotate away from the fixed part 92 and open the sowing channel. When the free end of the rotating rocker 90 is relieved of the pressure on the wheel surface of the roller assembly 1, the return spring 93 returns to its elasticity, and the rotating rocker 90 drives the hole closing baffle 91 to rotate close to the fixed part 92 and close the sowing channel.

[0071] Furthermore, such as Figures 1 to 4 As shown, in this embodiment, the portion of the rotating rocker 90 near the apex closing baffle 91 is rotatably mounted on the wheel body of the roller assembly 1 via a rotating support rod. The rotating support rod passes horizontally through the rotating rocker 90 along the axial direction of the wheel body of the roller assembly 1, and both ends of the rotating support rod are fixedly connected to the wheel body of the roller assembly 1. In this embodiment, the roller assembly 1 is provided with a blocking annular disk 13 and a rolling disk 14, and both ends of the rotating support rod are specifically fixed to the inner sidewalls of the edges of the blocking annular disk 13 and the rolling disk 14, respectively.

[0072] Furthermore, such as Figures 1 to 4As shown, during the rolling of the roller assembly 1, in the seed-feeding area, the seeds stored in the seed-collecting hole 24 fall into the seeding channel of the seeding nozzle 9 under the action of gravity, and then the seeding channel of the seeding nozzle 9 is opened for sowing. It should be noted that in this embodiment, the seeding nozzle 9 is in a state where the rotating seesaw 90 is not under pressure, the return spring 93 is not compressed, and the seeding channel of the seeding nozzle 9 is in a closed state. During the sowing process, the seeding channel of the seeding nozzle 9 is opened due to the pressure of the rotating seesaw 90 against the soil. Alternatively, the seed-feeding mechanism in this embodiment can also adopt other seed-feeding structures in the prior art to achieve the goal of simply feeding the seeds into the soil.

[0073] One embodiment of the present invention, such as Figure 7 As shown, the seed taking structure 2 is provided with a connecting part 1, and the seed taking hole seed inlet constraint structure 4 is provided with a connecting part 2 that can be detachably connected to the connecting part 1. The connecting part 2 is detachably connected to the connecting part 1.

[0074] In this embodiment, as Figure 7 As shown, by detachably connecting the second connecting part to the first connecting part, the seed-collecting hole constraint structure 4 can be detachably connected to the seed-collecting structure 2, thereby facilitating the disassembly and assembly of the seed-collecting hole constraint structure 4 and aiding in its replacement and maintenance. In this embodiment, the first connecting part is specifically the mounting groove 23, and the second connecting part is the two sides of the seed-collecting hole constraint structure 4 that are used for abutting connection with the inner sidewall of the mounting groove 23. Furthermore, the structures of the first connecting part and the second connecting part can be varied, as long as they facilitate the detachable connection of the seed-collecting hole constraint structure 4 to the seed-collecting structure 2.

[0075] One embodiment of the present invention, such as Figure 6 and Figure 7 As shown, on one side of the seed-collecting structure 2, where the seed-collecting hole 24 is located, an installation groove 23 is provided along the axial direction of the roller assembly 1. The installation groove 23 is connected to the seed-collecting hole 24 and extends to the outer periphery of the seed-collecting hole 24.

[0076] The seed-taking hole constraint structure 4 is detachably installed in the mounting groove 23. The seed-taking hole constraint structure 4 has several seed passages 40 for passing seeds, corresponding to several of the seed-taking holes 24. After inserting the seed-taking hole constraint structure 4 into the mounting groove 23 and making several seed passages 40 face several seed-taking holes 24, the seed-taking hole constraint structure 4 blocks the seed-taking holes 24 on the seed-taking structure 2 that do not have a seed passage 40 facing them.

[0077] In this embodiment, as Figure 6 and Figure 7As shown, by providing an installation groove 23 on the seed-collecting structure 2, the seed-collecting hole constraint structure 4 can be detachably installed within the installation groove 23, improving the reliability of the installation of the seed-collecting hole constraint structure 4. Furthermore, the seed-collecting hole constraint structure 4 is provided with several seed passage openings 40, facilitating the restriction of seed entry into seed-collecting holes 24 that are not directly opposite a seed passage opening 40. This ensures that each seed-collecting structure 2 has a suitable number of seed-collecting holes 24 for seed collection, storage, and placement. Additionally, this simplifies the structure of the seed-collecting hole constraint structure 4, reducing the production and usage costs of the precision seed planter. Furthermore, the installation groove 23 in this embodiment has an arc-shaped structure; however, the installation groove 23 can also be configured in other suitable shapes. Furthermore, in this embodiment, the seed-taking hole and seed-entry constraint structure 4 is provided with four seed passages 40, while each seed-taking structure 2 is provided with five seed-taking holes 24. One seed-taking hole 24 is restricted from seed entry. Alternatively, the seed passages 40 can be provided with three, two, or other methods as needed.

[0078] In this embodiment, as Figure 7 As shown, the open end of the seed collection hole 24 is oval-shaped, and the seed passage 40 is also oval-shaped. After the seed collection hole inlet constraint structure 4 is installed in the installation groove 23 and several seed passages 40 are aligned with several seed collection holes 24, the seed passages 40 respectively form the inlet portion of the seed collection hole 24 that is aligned with it.

[0079] In this embodiment, as Figure 7 As shown, in this embodiment, the open end of the seed collection hole 24 is oval-shaped, which facilitates the smooth entry of seeds into the seed collection hole 24. In addition, the seed passage 40 is oval-shaped, which facilitates the smooth passage of seeds, especially when the seeds are wheat seeds. Furthermore, after the seed collection hole inlet constraint structure 4 is installed in the mounting groove 23, the seed passage 40 forms the inlet portion of the seed collection hole 24 directly opposite it. This makes the size of the groove formed by the seed passage 40 and the seed collection hole 24 directly opposite it more closely close to the size of the seed collection hole 24 with normal size, thereby reducing or avoiding the seed passage 40 affecting the accuracy of seed collection and storage in the seed collection hole 24. The seed collection hole 24 with normal size is one that can just hold one seed.

[0080] One embodiment of the present invention, such as Figure 4 and Figure 6 As shown, the roller assembly 1 has multiple insertion ports on its axial side corresponding to multiple mounting slots 23. The seed-taking hole and seed-entry constraint structure 4 can be inserted through the insertion port and detachably installed in the mounting slot 23.

[0081] In this embodiment, as Figure 4 and Figure 6 As shown, multiple insertion ports are provided on the axial side of the roller assembly 1, facilitating the insertion and installation of the seed-taking hole constraint structure 4 into the mounting groove 23. When it is necessary to adjust the seed quantity of the precision seed planter, the original seed-taking hole constraint structure 4 can be removed from the insertion port without disassembling the roller assembly 1. Then, according to the seed quantity requirements of the land to be sown, a suitable seed-taking hole constraint structure 4 can be replaced to control the opening and closing state of the seed-taking hole 24 to achieve seed quantity restriction. This allows for the adjustment of the seed quantity of the precision seed planter, which is beneficial for quickly adjusting the seed quantity of the precision seed planter to meet the seed quantity requirements of different lands to be sown. Moreover, it does not require disassembling the roller assembly 1, making the adjustment of the seed quantity of the precision seed planter less work and easier to operate.

[0082] One embodiment of the present invention, such as Figure 4 and Figure 6 As shown, the precision seed planter also includes a locking mechanism for locking the seed-taking hole constraint structure 4. The locking mechanism is connected to the roller assembly 1, and the seed-taking hole constraint structure 4 is connected to the locking mechanism and fixed to the roller assembly 1 under the locking action of the locking mechanism.

[0083] In this embodiment, as Figure 4 and Figure 6 As shown, the locking mechanism locks the seed-taking hole constraint structure 4, which helps to fix and limit the seed-taking hole constraint structure 4, ensuring that the position of the seed-taking hole constraint structure 4 is fixed. Furthermore, the locking mechanism can also support and protect the seed-taking hole constraint structure 4, further improving the reliability of the installation of the seed-taking hole constraint structure 4.

[0084] In this embodiment, as Figure 4 and Figure 6As shown, the seed-taking hole and seed-entry constraint structure 4 in this embodiment is an arc-shaped plate structure. The insertion port in this embodiment is a threaded through hole. The locking mechanism includes multiple locking parts 146, which are respectively provided for multiple insertion ports. The locking end of the locking part 146 is provided with a stop protrusion. The outer periphery of the stop protrusion is provided with an external thread that can be threadedly connected to the threaded through hole. The stop protrusion is provided with a stop groove for stopping the seed-taking hole and seed-entry constraint structure 4. The stop protrusion is threadedly connected to the threaded through hole. By tightening the locking part 146, the seed-taking hole and seed-entry constraint structure 4 extends into the stop groove and stops on the inner side wall of the stop groove, thereby locking the seed-taking hole and seed-entry constraint structure 4. Furthermore, in this embodiment, the insertion port is located on the rolling disc 14; furthermore, in this embodiment, the seed-taking hole seed-entry constraint structure 4 can also be configured as other structures to facilitate seed-entry restriction of the seed-taking hole 24; in this embodiment, the locking mechanism can also adopt other locking mechanisms or locking components to facilitate fixing and limiting the seed-taking hole seed-entry constraint structure 4.

[0085] One embodiment of the present invention, such as Figure 2 , Figures 5 to 7 As shown, the precision seed planter also includes:

[0086] The seed posture adjustment structure 3 is provided in multiple ways, corresponding one-to-one with the seed picking structure 2. The multiple seed posture adjustment structures 3 are installed in the seed storage cavity at intervals around the seed picking structure 2 along the axial direction of the roller assembly 1. The seed posture adjustment structure 3 is provided with multiple seed picking holes 24 on the side facing the seed picking structure 2, and multiple seed posture adjustment grooves 311 are provided for adjusting the posture of the seeds. The seed posture adjustment grooves 311 are open on the side facing the seed picking structure 2. The outline of the seed posture adjustment grooves 311 is adapted to the shape of the seeds. The seed posture adjustment grooves 311 can adjust the posture of the seeds close to them and sequentially accommodate and face the seed picking hole 24 in the open state through a seed whose posture is adapted to the seed posture adjustment groove 311.

[0087] A swing drive mechanism is installed on the roller assembly 1. The seed posture adjustment structure 3 is connected to the swing drive mechanism and can swing relative to the seed picking structure 2 under the drive of the swing drive mechanism.

[0088] During the rolling process of the roller assembly 1, in the seed feeding area, the seed posture adjustment groove 311 adjusts the posture of the seeds close to it, and the seeds whose posture matches the seed posture adjustment groove 311 enter the seed posture adjustment groove 311 of the seed posture adjustment structure 3 located in the seed feeding area; in the seed storage area, the seeds that have entered the seed posture adjustment groove 311 enter and are stored in the seed picking hole 24 of the seed picking structure 2 located in the seed storage area, which is in an open state; in the seed feeding area, the seeds stored in the seed picking hole 24 are fed out from the seed picking hole 24 of the seed picking structure 2 located in the seed feeding area and discharged through the seed discharge outlet 171.

[0089] In this embodiment, as Figure 2 , Figure 3 , Figures 5 to 7 As shown, the seed posture adjustment structure 3 has multiple seed posture adjustment slots 311 corresponding to multiple seed picking holes 24 for adjusting the posture of the seeds. Driven by the swing drive mechanism, the seed posture adjustment structure 3 swings relative to the seed picking structure 2, causing the seeds near the seed posture adjustment slots 311 to adjust their posture under the action of the slots. This facilitates the adaptation of the seed posture near the seed posture adjustment slots 311 to the slots, ensuring proper posture adjustment. After the seeds adapted to the seed posture adjustment groove 311 enter the seed picking hole 24, the seeds enter the seed posture adjustment groove 311 smoothly, thus avoiding seed shortage in the seed picking hole 24 when it is open. Furthermore, the seed posture adjustment groove 311 can only accommodate and allow one seed whose posture is adapted to the seed posture adjustment groove 311 to pass through, thus avoiding the seed blockage caused by multiple seeds being squeezed into the seed posture adjustment groove 311 at the same time, and further improving the accuracy of the precision seed planter in picking and dispensing seeds.

[0090] In this embodiment, as Figure 6 and Figure 7 As shown, the seed posture adjustment structure 3 includes a seed posture adjustment part 31 and a rotating connection part for rotating installation. One end of the seed posture adjustment part 31 is connected to the rotating connection part, and the other end of the seed posture adjustment part 31 extends away from the rotating connection part to form a free end. The free end of the seed posture adjustment part 31 is provided with a plurality of seed posture adjustment grooves 311 at intervals. The end face of the free end of the seed posture adjustment part 31 protrudes towards the seed picking structure 2 to form an arc-shaped protrusion. The seed picking hole seed entry constraint structure 4 connected to the seed picking structure 2 and the end face of the seed picking structure 2 facing the arc-shaped protrusion together deviate from the arc-shaped protrusion to form a swing avoidance arc-shaped groove. When the seed posture adjustment part 31 swings, the arc-shaped protrusion can adapt to and abut against the swing avoidance arc-shaped groove and swing through the swing avoidance arc-shaped groove.

[0091] In this embodiment, as Figure 6 and Figure 7 As shown, in this embodiment, the rotating connecting part is horizontally installed within the roller assembly 1 parallel to the rotation center of the roller assembly 1. The seed picking structure 2 is horizontally installed within the roller assembly 1 parallel to the rotating connecting part. The length direction of the seed posture adjustment groove 311 is the same as the extension direction of the seed posture adjustment part 31. The inner port of the seed posture adjustment groove 311 is a large U-shaped opening. The maximum width of the large U-shaped opening is greater than the width of any single seed and less than the total width of any two seeds. The maximum length of the large U-shaped opening is greater than the length of any single seed and less than the total length of any two seeds. The U-shaped opening extends towards the outer port of the seed posture adjustment groove 311, and the sealing end of the large U-shaped opening contracts towards the opening end of the large U-shaped opening as the extension depth of the U-shaped opening increases. After extending to a position near the outer port of the seed posture adjustment groove 311, the large U-shaped opening narrows inward towards the inside of the seed posture adjustment groove 311 to form a small U-shaped opening. The maximum width of the small U-shaped opening is less than the width of any single seed, and the maximum length of the small U-shaped opening is less than the length of any single seed; this facilitates the entry of seeds located in the seed posture adjustment groove 311 into the seed collection hole 24 under the squeezing action of other seeds. In this embodiment, the seed posture adjustment groove 311 is suitable for wheat seeds and other seeds with similar shapes to wheat seeds.

[0092] It should be noted that the “posture” of the seeds in this embodiment refers to the placement posture of the seeds. The seed posture matching the seed posture adjustment groove 311 means that the placement posture of the seeds matches the outline of the seed posture adjustment groove 311, and the seeds can enter the seed posture adjustment groove 311.

[0093] In this embodiment, as Figure 6 and Figure 7 As shown, the maximum width of the seed posture adjustment groove 311 is greater than the width of any single seed but less than the total width of any two seeds; the maximum length of the seed posture adjustment groove 311 is greater than the length of any single seed but less than the total length of any two seeds; the seed picking hole 24 is recessed inward along the length direction of the conformal arrangement groove towards the seed picking component; the depth of the recess in the seed picking hole 24 is not less than the length of any single seed but less than the total length of any two seeds; the length of the seed is less than twice the width of the seed. This ensures that only one seed is stored in the seed picking hole 24, ensuring the accuracy of the precision seeding device in picking seeds whose length is less than twice the width of the seed. It should be noted that the outline and size of the seed posture adjustment groove 311 in this embodiment are designed according to the shape of different types of seeds. In addition, the above-mentioned "any one seed" and "any two seeds" refer to seeds in the ideal seed pool or seeds after removing inferior seeds. Furthermore, the "inner and outer sides" of the seed posture adjustment groove 311 refer to the position of the seed posture adjustment groove 311 installed in the roller assembly 1 with the seed posture adjustment structure 3 relative to the seed storage cavity in the roller assembly 1.

[0094] One embodiment of the present invention, such as Figures 1 to 5 As shown, the roller assembly 1 includes: a support shaft 10, which is horizontally arranged; a fixed disc 11, which is fixedly connected to the support shaft 10 perpendicularly; a rolling disc 14, which is rotatably mounted on the support shaft 10 parallel to the fixed disc 11; and an annular wheel body, which is fixedly connected to the rolling disc 14 near its edge. The annular wheel body is located between the fixed disc 11 and the rolling disc 14. The fixed disc 11 is movably stopped against one side of the annular wheel body. The inner surface of the annular wheel body is provided with an annular groove. The surface of the annular wheel body is provided with multiple seed outlets 171 at equal intervals. The seed outlets 171 communicate with the annular groove, and the multiple seed outlets 171 discharge seeds into the annular groove. The seed-taking structure 2 is installed in the annular groove. The seed posture adjustment structure 3 includes a rotating connection part and a seed posture adjustment part 31. The rotating connection part is rotatably installed on the annular wheel body at both ends along the axial direction of the roller assembly 1. The seed posture adjustment part 31 is located in the annular groove, and one end of the seed posture adjustment part 31 is connected to the rotating connection part. The other end of the seed posture adjustment part 31 extends away from the rotating connection part to form a free end. A plurality of seed posture adjustment grooves 311 are spaced apart on the free end of the seed posture adjustment part 31. The rotating connection part is connected to the swing drive mechanism and can swing relative to the seed-taking structure 2 under the drive of the swing drive mechanism.

[0095] In the seed feeding area, the seed posture adjustment structure 3, driven by the swing drive mechanism, swings near the wheel surface of the roller assembly 1 to open the seed picking hole 24. When the seed feeding channel formed between the seed picking hole 24 and the seed posture adjustment groove 311 is fully opened, the seeds in the seed posture adjustment groove 311 can enter the seed picking hole 24 from the seed posture adjustment groove 311.

[0096] In the seed storage area, the seed posture adjustment structure 3, driven by the swing drive mechanism, swings away from the wheel surface of the roller assembly 1 to open the seed picking hole 24. The seed picking structure 2, which stores the seeds, rolls toward the top of the roller assembly 1. The seeds in the seed picking hole 24 remain in the seed picking hole 24 during the rolling process. Alternatively, at least a part of the seed posture adjustment structure 3 blocks the seed picking hole 24, and the seed posture adjustment structure 3 can block and restrict the seeds in the seed picking hole 24.

[0097] In the seeding area, the seed posture adjustment structure 3, driven by the swing drive mechanism, swings away from the wheel surface of the roller assembly 1 to open the seed picking hole 24. When the seed picking hole 24 and the seed discharge outlet 171 are fully opened, the seeds in the seed picking hole 24 can be thrown out from the seed picking hole 24 and discharged from the seed discharge outlet 171.

[0098] In this embodiment, as Figure 2 , Figure 3 and Figure 5 As shown, an annular groove is provided on the annular wheel body of the roller assembly 1, which facilitates the installation of the seed picking structure 2 and the seed posture adjustment structure 3 in the annular groove; in addition, a support shaft 10 is provided on the roller assembly 1, which facilitates the fixing of the roller assembly 1 to the frame of the seeder by fixing the support shaft 10 to the frame of the seeder, and facilitates the quick installation of the precision seed planter on the frame of the seeder.

[0099] In this embodiment, as Figure 2 , Figure 5 As shown, a connecting protrusion 141 is provided in the middle of the inner side of the rolling disk 14. A shaft hole for the support shaft 10 is provided in the middle of the connecting protrusion 141. A support sleeve 142 is provided on the connecting protrusion 141. The support sleeve 142 extends forward perpendicularly to the rolling disk 14 to form a free end, and a stepped mounting section is provided on the outer wall of the free end of the support sleeve 142. The support sleeve 142 is rotatably mounted on the outer periphery of the support shaft 10 by at least two bearings and is fixed and limited by a limiting bushing 103. Further, the outer side of the fixed disk 11... A support protruding ring 113 is provided in the middle of the support ring 113, and a shaft hole 2 for the support shaft 10 to pass through is formed in the middle of the support ring 11. In addition, a support sleeve 2 is provided in the middle of the inner side of the fixed disk 11 corresponding to the support sleeve 142. The support sleeve 2 extends backward perpendicular to the fixed disk 11 to form a free end. The support sleeve 2 is also supported and fixedly installed on the outer periphery of the support shaft 10 by at least two bearings. The free end of the support sleeve 2 is rotatably sleeved on the outer side of the stepped mounting section on the support sleeve 142 by the bearing, so that the support sleeve 142 can rotate relative to the support sleeve 2.

[0100] Furthermore, such as Figure 1 , Figure 6 As shown, in this embodiment, the front end of the support shaft 10 is fixed by a locking nut 101, and a washer 102 is installed between the locking nut 101 and the support ring 113; the middle of the rear end of the rolling disc 14 is provided with an installation groove, the support bearing 143 is fixed to the rear end of the support shaft 10 and installed in the installation groove, the rear end of the support bearing 143 is locked by a locking nut 145, and a washer 144 is installed between the locking nut 145 and the support bearing 143.

[0101] Furthermore, such as Figure 1 As shown, in this embodiment, the fixed disc 11 is also provided with a seed input port for inputting seeds into the seed storage cavity. The output end of the seed delivery pipe 12 for conveying seeds into the seed storage cavity is connected to the outer periphery of the seed input port. The end of the seed input port of the seed delivery pipe 12 is provided with two connecting ears 121, which are fixed to the fixed disc 11 by bolts. Furthermore, the fixed disc 11 is also provided with an observation port 111 for observing the seed condition in the seed storage cavity, which is covered by a transparent cover. The fixed disc 11 is also provided with a seed unloading port 112 for unloading the seeds stored in the seed storage cavity, which is covered by a detachable seed unloading cover.

[0102] Furthermore, such as Figure 2 and Figure 5 As shown, the annular wheel in this embodiment is composed of a first supporting ring 16 and a second supporting ring 17. The first supporting ring 16 is located on the side near the fixed disk 11, and has an annular convex rail 1 extending inward. The second supporting ring 17 is located on the side near the rolling disk 14, and has an annular convex rail 2 extending inward. The second supporting ring 17 has an annular connecting protrusion on the side facing the first supporting ring 16. The annular connecting protrusion extends towards the first supporting ring 16 to form an extension end. The first supporting ring 16 is connected to the extension end of the annular connecting protrusion to form the annular wheel. The first and second annular convex rails are arranged parallel to each other, and an annular groove is defined between the first and second annular convex rails. Furthermore, multiple seed outlets 171 are equidistantly spaced on the annular connecting protrusion of the second supporting ring 17.

[0103] Furthermore, such as Figures 5 to 7 As shown, in this embodiment, the seed-taking structure 2 has an installation protrusion 20 on its outer side, and the inner sidewall of the annular connecting protrusion supporting the second ring 17 has an installation groove 2. The installation protrusion 20 is installed in the installation groove 2, and the seed-taking structure 2 is fixedly installed in the annular groove. Furthermore, the annular wheel can also be configured with other structures to facilitate the formation of the annular groove.

[0104] Furthermore, such as Figure 1 , Figure 5 As shown, the roller assembly 1 of this embodiment is provided with a blocking annular disk 13. The supporting protrusion on the edge of the rolling disk 14 is provided with a plurality of connecting through holes 1 at intervals. The blocking annular disk 13 is provided with a plurality of connecting through holes 2 corresponding to the connecting through holes 1. The front end of the fixing bolt 18 passes through the connecting through holes 1 and the connecting through holes 2 and is locked with a nut to fix the blocking annular disk 13 and the rolling disk 14.

[0105] Furthermore, such as Figure 1 , Figure 5As shown, in this embodiment, in order to ensure that the fixed disc 11 can be moved and abutted against one side of the blocking annular disc 13 to prevent seeds from leaking out of the seed storage cavity through the gap between the fixed disc 11 and the blocking annular disc 13, this embodiment provides a stepped circular groove in the middle of the blocking annular disc 13, and the fixed disc 11 is installed close to the blocking annular disc 13 and housed in the stepped circular groove.

[0106] In this embodiment, as Figures 5 to 7 As shown, the rotating connection part is connected to one end of the support ring 16 and extends outward from the inside of the support ring 16. The swing drive mechanism includes:

[0107] The swing drive ring 15 is installed on one side of the fixed disc 11, and the swing drive ring 15 is provided with an outwardly protruding swing drive rail 151 on the side of the seeding area. The swing drive rail 151 includes multiple arc-shaped protrusions and multiple arc-shaped grooves arranged alternately.

[0108] The swing arm 6 includes a swing connecting arm 60 and a stop shaft 61. One end of the swing connecting arm 60 is connected to one end of the rotating connecting part that passes through the support ring 16. The stop shaft 61 is connected to one side of the swing connecting arm 60 and extends toward the swing drive ring 15 and stops the swing arm 60 tangentially to the outer side of the swing drive ring 15.

[0109] The torsion spring 8 includes a spiral body and torsion arms 1 and 2 connected to the two ends of the spiral body respectively. The spiral body is sleeved on the rotating connection part and located between the swing connection arm 60 and the seed posture adjustment part 31. Torsion arm 1 is abutted and connected to the support ring 16, and torsion arm 2 is abutted and connected to the swing connection arm 60. When the roller assembly 1 rolls, when the abutting shaft 61 is tangential to the outer circumferential side of the swing drive ring 15, the swing arm 6 drives the seed posture adjustment structure 3 to swing and completely close the seed inlet channel formed between the seed picking hole 24 and the seed posture adjustment groove 311. When the abutting shaft 61 passes the swing drive convex rail 151 and moves against multiple arc-shaped protrusions and multiple arc-shaped grooves in sequence under the action of the torsion spring 8, it drives the swing arm 6 to swing. The swing arm 6 can drive the seed posture adjustment structure 3 to swing intermittently and completely open the seed inlet channel formed between the seed picking hole 24 and the seed posture adjustment groove 311.

[0110] In this embodiment, as Figure 2 and Figure 5As shown, the swing drive ring 15 is fixed to the inner side of the fixed disk 11. The swing drive ring 15 is provided with multiple connecting ears 152 spaced apart in the circumferential direction. The connecting ears 152 are specifically fixed to the fixed disk 11 by bolts. The swing drive ring 15 is provided with a swing drive convex rail 151 protruding outward on one side of the seed entry area. The swing drive convex rail 151 includes multiple arc-shaped protrusions and multiple arc-shaped grooves arranged alternately. The stop shaft 61 on the swing arm 6 is tangent to the circumferential outer side of the swing drive ring 15 and can pass through the swing drive convex rail 151 and move in sequence against multiple arc-shaped protrusions and multiple arc-shaped grooves under the action of the torsion spring 8, thereby driving the swing arm 6 to swing. The swing arm 6 can drive the seed posture adjustment structure 3 to swing intermittently and fully open the seed entry channel formed between the seed picking hole 24 and the seed posture adjustment groove 311, thereby facilitating the seed entry into the seed picking hole 24 in the seed storage cavity of the seed entry area.

[0111] Furthermore, such as Figures 5 to 7 As shown, in this embodiment, the rotating connection part on the seed posture adjustment structure 3 is a rotating shaft 30, and the seed posture adjustment part 31 is fixedly connected to one side of the rotating shaft 30. The first annular convex rail is provided with a first mounting through hole, and the front end of the rotating shaft 30 is rotatably installed in the first mounting through hole and passes forward through the first annular convex rail; the second annular convex rail is provided with a second mounting through hole, and the rear end of the rotating shaft 30 is rotatably installed in the second mounting through hole; furthermore, in order to further improve the rotational stability of the rotating shaft 30, a first rotating support sleeve is installed in the first mounting through hole, and a second rotating support sleeve 32 is installed in the second mounting through hole, and the two ends of the rotating shaft 30 are respectively rotated and supported by the first rotating support sleeve and the second rotating support sleeve 32.

[0112] Furthermore, such as Figures 5 to 7 As shown, the seed taking structure 2 in this embodiment is provided with a support block 21. The support block 21 is connected to the mounting protrusion 20 and extends to the inside of the roller assembly 1. An arc-shaped rotating clearance groove 22 is provided on one side of the support block 21. The rotating shaft 30 rotates in the mounting through hole one and the mounting through hole two. The middle part of the rotating shaft 30 is housed in the arc-shaped rotating clearance groove 22.

[0113] Furthermore, such as Figure 7As shown, in this embodiment, the rotating shaft 30 has a mounting head 301 at one end passing through the annular convex rail. The mounting head 301 has a rectangular structure. In this embodiment, the swing arm 6 has a insertion slot 601 at one end. The mounting head 301 is inserted into the insertion slot 601 to connect the swing arm 6 to the mounting head 301. The other end of the swing arm 6 extends parallel to the annular convex rail and is connected to a stop shaft 61. The stop shaft 61 extends toward the fixed disc 11. In this embodiment, the swing connecting arm 60 has a pin hole 602 at one end with the insertion slot 601. The mounting head 301 has a pin hole 3011 corresponding to the pin hole 602. A pin 7 is inserted into the pin hole 602 and the pin hole 3011. The pin 7 limits the swing arm 6 to the mounting head 301.

[0114] Furthermore, such as Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, a swing drive ring 15 is fixedly connected to one side of the fixed disc 11 corresponding to the stop shaft 61. The swing drive ring 15 is provided with a swing drive convex rail 151 protruding outward on one side of the seed-feeding area. The stop shaft 61 is tangent to the swing drive ring 15 around the outside. During the rolling process of the roller assembly 1, when the stop shaft 61 passes the arc-shaped protrusion on the swing drive convex rail 151, the swing arm 6 swings outward away from the swing drive ring 15, driving the seed posture adjustment part 31 to swing and fully open the seed-feeding channel formed between the seed-taking hole 24 and the seed posture adjustment groove 311. When the stop shaft 61 passes the arc-shaped groove on the swing drive convex rail 151, the swing arm 6 swings close to the swing drive ring 15 under the action of the torsion spring 8, driving the seed posture adjustment part 31 to swing and close part of the seed-feeding channel formed between the seed-taking hole 24 and the seed posture adjustment groove 311.

[0115] Furthermore, such as Figure 2 , Figure 5 and Figure 6As shown, in this embodiment, the multiple arc-shaped protrusions and arc-shaped grooves are connected by a circular arc transition. When the stop shaft 61 passes the highest point of the arc-shaped protrusion, the swing arm 6 drives the seed posture adjustment part 31 to swing and fully open the seed inlet channel formed between the seed picking hole 24 and the seed posture adjustment groove 311. This facilitates the rotation of the rotating shaft 30 to open the seed inlet channel formed between the seed picking hole 24 and the seed posture adjustment groove 311 multiple times, so as to ensure that a seed can enter and be stored in the seed picking hole 24. Furthermore, in order to better block and confine the seeds within the seed collection hole 24 in the seed storage area, at least a portion of the seed posture adjustment structure 3 can block the seed collection hole 24. The seed posture adjustment structure 3 can block and confine the seeds located in the seed collection hole 24 within the seed collection hole 24. In this embodiment, the arc-shaped protrusion can be extended to the seed storage area, so that when the stop shaft 61 abuts against the arc-shaped protrusion in the seed storage area, at least a portion of the seed posture adjustment structure 3 blocks the seed collection hole 24. Furthermore, the swing drive mechanism can also be other rotary drive devices.

[0116] In this embodiment, as Figure 6 and Figure 7 As shown, the first torsion arm on the torsion spring 8 is connected to the first support ring 16. The front side of the annular convex rail of the first support ring 16 is provided with a limiting groove, and the first torsion arm is installed in the limiting groove. The second torsion arm on the torsion spring 8 is inserted into the swing connecting arm 60. The swing connecting arm 60 is provided with a limiting through hole 603, and the second torsion arm is inserted into the limiting through hole 603. It should be noted that the roller assembly 1 in this embodiment can also be configured with other structures, which is beneficial for the precision seed planter to perform sowing.

[0117] One embodiment of the present invention, such as Figures 5 to 7 As shown, the precision seed planter also includes: elastic blocking structures, multiple of which are provided corresponding to the seed posture adjustment structures 3. One end of the elastic blocking structure is connected to the outside of the seed posture adjustment structure 3, and the other end of the elastic blocking structure extends to the outer port of the seed posture adjustment groove 311 and blocks the outside of the seed posture adjustment groove 311. In the seed feeding area, during the process of the seed posture adjustment groove 311 aligning the seeds close to it, the elastic blocking structure blocks the seeds entering the seed posture adjustment groove 311 from the outside of the seed posture adjustment groove 311 and guides the seeds to move toward the seed picking hole 24, which is in an open state and is set directly opposite to the seed posture adjustment groove 311.

[0118] In this embodiment, as Figures 5 to 7As shown, by providing an elastic blocking structure, the seeds partially entering the seed posture adjustment groove 311 are squeezed by other seeds, causing the elastic blocking structure to deform elastically. This makes it easier for the seeds partially entering the seed posture adjustment groove 311 to fall completely into the groove, further improving the smoothness of seed entry into the groove. In addition, the elastic blocking structure can also block the seeds entering the seed posture adjustment groove 311 and guide them towards the open seed picking hole 24, which is directly opposite the seed posture adjustment groove 311. This further improves the smoothness of seed entry into the open seed picking hole 24, helps to avoid seed shortage in the open seed picking hole 24, and further improves the accuracy of seed picking and sowing by the precision seed planter.

[0119] In this embodiment, as Figure 6 , Figure 7 As shown, the elastic blocking component is a brush 5, and the bristles 51 on the brush 5 are independent of each other. When a portion of the seed is squeezed against a portion of the bristles 51, the squeezed bristles 51 undergo elastic deformation, thereby facilitating the seed to adapt to the contour adjustment posture of the seed posture adjustment groove 311 and fall into the seed posture adjustment groove 311. When the seed continues to squeeze the bristles 51, the seed comes into contact with more bristles 51, thereby blocking the seed. Furthermore, in this embodiment, the brush 5 includes a brush seat 50, and the bristles 51 are fixed on the brush seat 50. In order to facilitate the installation of the brush 5, a brush mounting groove 312 is provided on the outside of the seed posture adjustment structure 3, and the brush seat 50 is fixedly installed in the brush mounting groove 312. Furthermore, the elastic blocking structure can also use other elastic blocking components to facilitate the blocking of the seed.

[0120] In addition, this embodiment also provides a seeder, including: a traction device for driving the seeder to move; a frame connected to the traction device; the above-mentioned precision seed planter, wherein multiple precision seed planters are provided, and an array of multiple precision seed planters is installed on the frame; and a seed storage box installed on the frame, wherein the seed storage box is connected to the seed storage cavity through a seed delivery pipe 12.

[0121] In this embodiment, the seeder has multiple precision seeders arrayed on its frame. This allows for precise seed picking and dispensing simultaneously using multiple precision seeders, and the accurate adjustment of the seed quantity dispensed by each precision seeder in each dispensing cycle facilitates uniform sowing. Furthermore, the seed quantity dispensed by the precision seeders in each dispensing cycle is easily adjustable. By adjusting the seed quantity dispensed by the precision seeders in each dispensing cycle according to the seed requirements of the land to be sown, the seeding rate of the seeder can be adjusted to meet the seeding needs of different land types, improving the seeder's applicability to various land types. Additionally, a seed storage box is installed on the frame, facilitating the input of seeds stored in the seed storage box into the seed storage chamber. It should be noted that this embodiment does not illustrate the structure of the precision seeder array mounted on the frame, and the method of mounting the precision seeders on the frame can be referenced from existing sowing equipment, and will not be described in detail here.

[0122] In addition to the technical solutions disclosed in this embodiment, other components of the traction device and the seeder in this invention, as well as their working principles, can be referred to conventional technical solutions in this technical field. However, these conventional technical solutions are not the focus of this invention, and will not be described in detail here.

[0123] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0124] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," 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 application and simplifying the description, and do not indicate or imply that the device or unit 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 application.

[0125] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0126] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A precision seed planter, characterized in that, include: A roller assembly, wherein the roller assembly is provided with a seed storage cavity for storing seeds, and the roller assembly has a plurality of seed discharge outlets spaced apart circumferentially on the wheel surface, and the plurality of seed discharge outlets are respectively connected to the seed storage cavity; The seed-collecting structure includes multiple seed-collecting structures, which are circumferentially spaced within the seed storage cavity along the inner wheel surface of the roller assembly, corresponding to the seed discharge outlet. Each seed-collecting structure has multiple seed-collecting holes spaced along the axial direction of the roller assembly for collecting seeds. Each seed-collecting hole can hold one seed. During the rolling of the roller assembly, a seed-collecting area, a seed-storing area, and a seed-dispensing area are formed within the roller assembly. The seed-taking hole constraint structure is provided in multiple ways, each corresponding to a seed-taking structure. The multiple seed-taking hole constraint structures are detachably connected to the seed-taking structure, and each seed-taking hole constraint structure can open and close the seed-taking hole respectively. During the rolling process of the roller assembly, in the seed feeding area, seeds enter the open seed-taking hole on the seed-taking structure located in the seed feeding area; in the seed storage area, the seeds that have entered the seed-taking hole are stored in the open seed-taking hole on the seed-taking structure located in the seed storage area; in the seed dispensing area, the seeds stored in the seed-taking hole on the seed-taking structure located in the seed dispensing area are dispensed and discharged through the seed discharge outlet. The seed-collecting structure has an installation groove on one side where the seed-collecting hole is located, along the axial direction of the roller assembly. The installation groove is connected to the seed-collecting hole and extends outward from the seed-collecting hole. The seed-taking hole constraint structure is detachably installed in the mounting groove. The seed-taking hole constraint structure has a number of seed passage openings for passing seeds to pass through, corresponding to a number of seed-taking holes among a number of seed-taking holes. After the seed-taking hole constraint structure is inserted into the mounting groove and the number of seed passage openings are aligned with the number of seed-taking holes, the seed-taking hole constraint structure blocks the seed-taking holes on the seed-taking structure that do not have a seed passage opening aligned with them.

2. The precision seed planter according to claim 1, characterized in that, Also includes: The seed-in-soil mechanism is used to put the seeds discharged from the seed outlet into the soil. The seed-in-soil mechanism is provided in multiple ways corresponding to the multiple seed outlets. The multiple seed-in-soil mechanisms are circumferentially spaced on the outer wheel surface of the roller assembly. The seed-in-soil mechanism is provided with a seed transmission channel communicating with the seed outlet. During the rolling process of the roller assembly, in the seed feeding area, the seeds stored in the seed picking hole on the seed picking structure located in the seed feeding area are discharged from the seed discharge outlet and enter the soil through the seed transmission channel.

3. The precision seed planter according to claim 1, characterized in that, The seed-collecting structure is provided with a connecting part one, and the seed-collecting hole-entry constraint structure is provided with a connecting part two that can be detachably connected to the connecting part one, and the connecting part two is detachably connected to the connecting part one.

4. The precision seed planter according to claim 1, characterized in that, The roller assembly has multiple insertion ports on its axial side, corresponding to the multiple mounting slots. The seed-taking hole seed-entry constraint structure can be inserted through the insertion ports and detachably installed in the mounting slot.

5. The precision seed planter according to any one of claims 1 to 4, characterized in that, Also includes: A locking mechanism is used to lock the seed-taking hole seed-entry constraint structure. The locking mechanism is connected to the roller assembly. The seed-taking hole seed-entry constraint structure is connected to the locking mechanism and fixed to the roller assembly under the locking action of the locking mechanism.

6. The precision seed planter according to any one of claims 1 to 4, characterized in that, Also includes: Multiple seed posture adjustment structures are provided, each corresponding to a seed picking structure. These multiple seed posture adjustment structures are circumferentially rotatable and installed in the seed storage cavity, close to the seed picking structure along the axial direction of the roller assembly. Each seed posture adjustment structure has multiple seed posture adjustment slots on the side facing the seed picking structure, corresponding to multiple seed picking holes, for adjusting the posture of the seeds. The seed posture adjustment slots are open on the side facing the seed picking structure, and their contours are adapted to the shape of the seeds. Each seed posture adjustment slot can adjust the posture of the seeds close to it and sequentially accommodate and face the open seed picking hole, passing through a seed whose posture is adapted to the seed posture adjustment slot. A swing drive mechanism is installed on the roller assembly. The seed posture adjustment structure is connected to the swing drive mechanism and can swing relative to the seed picking structure under the drive of the swing drive mechanism. During the rolling of the roller assembly, in the seed feeding area, the seed posture adjustment groove adjusts the posture of the seeds close to it, and the seeds whose posture matches the seed posture adjustment groove enter the seed posture adjustment groove of the seed posture adjustment structure located in the seed feeding area; in the seed storage area, the seeds that have entered the seed posture adjustment groove enter and are stored in the seed retrieval hole of the seed retrieval structure located in the seed storage area, which is in an open state; in the seed dispensing area, the seeds stored in the seed retrieval hole are dispensed from the seed retrieval hole of the seed retrieval structure located in the seed dispensing area and discharged through the seed discharge outlet.

7. The precision seed planter according to claim 6, characterized in that, The roller assembly includes: The support shaft is horizontally positioned. A fixed disc is fixedly connected to the support shaft perpendicularly to the support shaft; A rolling disc is rotatably mounted on the support shaft, parallel to the fixed disc; A circular wheel body is fixedly connected to the rolling disk near the edge of the rolling disk. The circular wheel body is located between the fixed disk and the rolling disk. The fixed disk movably abuts against one side of the circular wheel body. The inner wheel surface of the circular wheel body is provided with an annular groove. The wheel surface of the circular wheel body is provided with a plurality of seed discharge outlets at equal intervals. The seed discharge outlets communicate with the annular groove. A plurality of seed picking structures are installed in the annular groove. The seed posture adjustment structure includes a rotating connection part and a seed posture adjustment part. The two ends of the rotating connection part along the axial direction of the roller assembly are respectively rotatably installed on the circular wheel body. The seed posture adjustment part is located in the annular groove, and one end of the seed posture adjustment part is connected to the rotating connection part. The other end of the seed posture adjustment part extends away from the rotating connection part to form a free end. A plurality of seed posture adjustment grooves are provided at intervals on the free end of the seed posture adjustment part. The rotating connection part is connected to the swing drive mechanism and can swing relative to the seed picking structure under the drive of the swing drive mechanism. In the seed feeding area, the seed posture adjustment structure, driven by the swing drive mechanism, swings close to the wheel surface of the roller assembly to open the seed picking hole. When the seed feeding channel formed between the seed picking hole and the seed posture adjustment groove is fully opened, the seeds located in the seed posture adjustment groove can enter the seed picking hole from the seed posture adjustment groove. In the seed storage area, the seed posture adjustment structure, driven by the swing drive mechanism, swings away from the wheel surface of the roller assembly to open the seed picking hole. The seed picking structure storing the seeds rolls towards the top of the roller assembly, and the seeds located in the seed picking hole remain in the seed picking hole during the rolling process; or at least a part of the seed posture adjustment structure blocks the seed picking hole, and the seed posture adjustment structure can block and restrict the seeds located in the seed picking hole within the seed picking hole. In the seeding area, the seed posture adjustment structure, driven by the swing drive mechanism, swings away from the wheel surface of the roller assembly to open the seed picking hole. When the seed picking hole and the seed discharge outlet are fully open, the seeds in the seed picking hole can be thrown out from the seed picking hole and discharged from the seed discharge outlet.

8. The precision seed planter according to claim 6, characterized in that, Also includes: Multiple elastic blocking structures are provided, each corresponding to a seed posture adjustment structure. One end of each elastic blocking structure is connected to the outside of the seed posture adjustment structure, and the other end of each elastic blocking structure extends to the outer port of the seed posture adjustment groove and blocks the outside of the seed posture adjustment groove. Within the seed-feeding area, during the process of the seed posture adjustment groove aligning the seeds close to it, the elastic blocking structure blocks the seeds entering the seed posture adjustment groove from the outside of the seed posture adjustment groove and guides the seeds to move toward the seed-taking hole, which is in an open state and is positioned directly opposite the seed posture adjustment groove.

9. A seeder, characterized in that, include: A traction device for driving the seeder to move; The frame is connected to the traction device; The precision seed planter according to any one of claims 1 to 8 is provided in multiple forms, and the array of multiple precision seed planters is mounted on the frame; A seed storage box is installed on the frame, and the seed storage box is connected to the seed storage cavity through a seed delivery pipe.

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