A seed sowing device and a seeder containing the same.

Abstract

This invention discloses a seed sowing device and a seeder containing the same, belonging to the technical field of sowing equipment. The seed sowing device includes: a roller assembly with a seed storage cavity inside, and multiple seed discharge outlets spaced circumferentially on the roller surface; multiple seed picking structures installed within the seed storage cavity, each with multiple seed picking holes; multiple seed feeding guide structures corresponding to the seed picking structures and installed within the seed storage cavity, each with multiple seed feeding guide grooves; and multiple guide groove feeding constraint structures detachably connected to the seed feeding guide structures, each located on the side of the seed feeding guide grooves facing the inside of the roller assembly and capable of opening and closing the seed feeding guide grooves. The seed sowing device of this invention facilitates adjustment of the seed dispensing amount 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 seed sowing device 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, the other excess seeds are 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, in the existing roller seeders, the seed-collecting mechanism has an uncertain seed-entry posture during the seed-collecting process. This can easily cause seeds to get stuck in the seed-entry channel and affect the smoothness of seed entry into the seed-collecting hole. This can easily lead to seed shortages and seedling loss later on.

[0004] Furthermore, within a single seed-taking cycle, two or more seeds are taken from the seed-taking hole, and the seeds vary in size. During the rolling process of the roller seeder, the posture and movement direction of the seeds stored in the seed storage chamber become chaotic, resulting in an uncertain number of seeds that can enter the seed-taking hole and an uncertain number of seeds that are sown each time, which in turn leads to uneven seedling emergence in the later stages.

[0005] 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.

[0006] Furthermore, the seed dispensing rate of existing roller seeders is not easily adjustable, making it difficult to adjust the seed dispensing rate according to the different seed requirements of different planting lands. Current roller seeders mainly adjust the seed dispensing rate by changing the size of the seed collection hole. However, this method requires disassembling the entire roller seeder and replacing it with a seed collection mechanism of a suitable size, making the modification of the roller seeder difficult and labor-intensive. Therefore, there is an urgent need for a seeding device that allows for easy adjustment of the seed dispensing rate and precise seed collection and dispensing. Summary of the Invention

[0007] The purpose of this invention is to overcome at least one deficiency of the prior art and to provide a seed sowing device that facilitates the adjustment of seed dispensing amount and enables precise seed picking and dispensing. In addition, a seeder is also provided.

[0008] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A seed sowing device, comprising:

[0009] 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;

[0010] 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.

[0011] The seed feeding guide structure has multiple structures corresponding to the seed picking structure. These multiple seed feeding guide structures are circumferentially spaced and installed in the seed storage cavity, close to the seed picking structure along the axial direction of the roller assembly. Each seed feeding guide structure has multiple seed feeding guide grooves on the side facing the seed picking structure, corresponding to the multiple seed picking holes. The seed feeding guide grooves are open on the side facing the seed picking structure, and their contours are adapted to the shape of the seeds. The seed feeding guide grooves can adjust the posture of the seeds close to them and sequentially accommodate and guide a seed whose posture is adapted to the seed feeding guide groove through the seed picking hole.

[0012] The seed inlet constraint structure is provided in multiple ways, each corresponding to a seed inlet guide structure. The multiple seed inlet constraint structures are detachably connected to the seed inlet guide structure. The seed inlet constraint structure is located on the side of the seed inlet guide groove facing the inside of the roller assembly and can open and close the seed inlet guide groove respectively.

[0013] During the rolling process, in the seed feeding area, the open seed feeding guide groove adjusts the posture of the nearby seeds and guides them into the seed feeding area. Seeds whose posture matches the seed feeding guide groove enter the open seed feeding guide groove on the seed feeding guide structure located in the seed feeding area. The seeds entering the open seed feeding guide groove then enter the seed picking hole located directly opposite the open seed feeding guide groove. In the seed storage area, the seeds that have entered the seed picking hole are stored in the seed picking hole 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.

[0014] The beneficial effects of this invention are as follows: The seed entry guide groove in this embodiment can adjust the posture of the seeds close to it and guide the seeds to enter the seed collection hole. Before the seeds enter the seed collection hole, the posture of the seeds is adjusted by the seed entry guide groove, so that the posture of the seeds during the process of entering the seed collection hole and after entering the seed collection hole is relatively determined. Moreover, the seed entry guide groove guides the seeds to enter the seed collection hole more smoothly and avoids the seed collection hole from being short of seeds.

[0015] Furthermore, the seed inlet guide groove can adjust the posture of the seeds close to it and sequentially accommodate and guide a seed whose posture is adapted to the seed inlet guide groove through the seed picking hole. The seed inlet guide groove opening and closing state is controlled by the seed inlet guide groove constraint structure, which restricts the seeds from entering the seed inlet guide groove when it is closed. This restricts the seed inlet of some seed inlet guide grooves, so that each seed inlet guide structure has a suitable number of seed inlet guide grooves that can be seeded. This restricts the seed inlet of some seed picking holes, thereby adjusting the number of seeds taken out by each seed picking structure in a seed picking cycle, and adjusting the number of seeds put out by the seed sowing device in each seed sowing cycle.

[0016] Furthermore, the seed inlet guide groove can only accommodate and allow one seed whose posture is compatible with the seed inlet guide groove, avoiding the simultaneous squeezing of multiple seeds into the seed inlet guide groove and causing seed blockage. Each seed picking hole can hold one seed, ensuring that each seed picking hole only holds one seed in the seed inlet area, and thus ensuring that each seed picking hole only discharges one seed in the seeding area. In addition, the number of seed picking holes on each seed picking structure is fixed, and each seed picking structure takes out a fixed number of seeds in one seed picking cycle and releases a fixed number of seeds in one seeding cycle, thereby achieving precise seed picking and seeding.

[0017] Furthermore, the seed-feeding constraint structure of the guide trough is detachable. Based on the seed quantity requirements of the land to be sown, the on / off state of the seed-feeding guide trough can be controlled by replacing the appropriate guide trough constraint structure to restrict seed feeding. This restricts the feeding of a fixed number of seed-feeding guide troughs and seed-collecting holes, ensuring that each seed-feeding guide structure has a suitable number of seed-feeding guide troughs for seed feeding, and each seed-collecting structure has a suitable number of seed-collecting holes for seed collection, storage, and feeding. This allows for adjustment of the seed feeding amount of the seed-planting device, meeting the seed quantity requirements of different lands to be sown, improving the applicability of the seed-planting device to different lands, and the method of adjusting the seed feeding amount of the seed-planting device is simple and easy to implement.

[0018] 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.

[0019] According to an embodiment of the present invention, the seed feeding guide structure is provided with a connecting part one, and the seed feeding constraint structure of the guide groove 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.

[0020] In this embodiment, by detachably connecting the second connecting part to the first connecting part, it is convenient to detachably connect the seed-feeding constraint structure of the guide groove to the seed-feeding guide structure, thereby facilitating the disassembly and assembly of the seed-feeding constraint structure of the guide groove, which is beneficial for the replacement and maintenance of the seed-feeding constraint structure of the guide groove.

[0021] According to one embodiment of the present invention, the seed-entry constraint structure of the seed-entry guide groove is provided with a plurality of seed passage openings for passing seeds, corresponding to a plurality of seed-entry guide grooves among a plurality of seed-entry guide grooves. After the seed-entry constraint structure of the seed-entry guide groove is connected to the seed-entry constraint structure and the plurality of seed passage openings are aligned with the plurality of seed-entry guide grooves, the seed-entry constraint structure of the seed-entry guide groove does not have a seed passage opening aligned with the seed-entry guide groove.

[0022] In this embodiment, by providing several seed passages on the seed inlet constraint structure of the seed inlet, it is convenient to restrict the seed inlet of seed inlet guide slots that do not have a seed passage directly opposite them. This allows each seed inlet guide structure to have a suitable number of seed inlet guide slots for seed inlet, and in turn, each seed retrieval structure to have a suitable number of seed retrieval holes for seed retrieval, storage, and sowing. In addition, it simplifies the structure of the seed inlet constraint structure of the seed inlet, which helps to reduce the production and use costs of the seed sowing device.

[0023] According to one embodiment of the present invention, the seed sowing device further includes:

[0024] The locking element corresponds to multiple seed feeding guide structures, and the seed feeding constraint structure of the guide groove is connected to the seed feeding guide structure through the locking element.

[0025] In this embodiment, the seed-feeding constraint structure of the guide groove is locked by a locking component, which helps to fix and limit the position of the seed-feeding constraint structure, ensures that the position of the seed-feeding constraint structure is fixed, improves the reliability of the installation of the seed-feeding constraint structure, and also facilitates the quick connection of the seed-feeding constraint structure to the seed-feeding guide structure.

[0026] According to one embodiment of the present invention, the seed sowing device further includes:

[0027] A swing drive mechanism is installed on the roller assembly. The seed feeding guide structure is connected to the swing drive mechanism and can swing relative to the seed picking structure to any position at the port of the seed picking hole under the drive of the swing drive mechanism, thereby opening and closing the seed picking hole.

[0028] During the rolling of the roller assembly, in the seed feeding area, the open seed feeding guide groove adjusts the posture of the nearby seeds and guides them into the seed feeding area. Seeds whose posture matches the seed feeding guide groove enter the seed feeding guide groove of the seed feeding guide structure located in the seed feeding area. In the seed storage area, the seeds that have entered the open seed feeding guide groove enter and are stored in the seed picking hole located in the seed storage area, which is directly opposite the open seed feeding guide groove. In the seed dispensing area, the seeds stored in the seed picking hole are dispensed from the seed picking hole of the seed picking structure located in the seed dispensing area and discharged through the seed discharge outlet.

[0029] In this embodiment, the seed feeding guide structure swings relative to the seed picking structure under the drive of the swing drive mechanism. This causes the seeds approaching the open seed feeding guide groove to adjust their posture under the action of the seed feeding guide groove. This helps to ensure that the posture of the seeds approaching the seed feeding guide groove is adapted to the seed feeding guide groove. After the seeds with the posture adapted to the open seed feeding guide groove enter the seed feeding guide groove, they enter the seed picking hole set directly opposite the open seed feeding guide groove. This improves the smoothness of the seeds entering the seed picking hole and avoids the seed picking hole being empty.

[0030] According to one embodiment of the present invention, the seed sowing device further includes:

[0031] 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.

[0032] 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.

[0033] 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.

[0034] According to one embodiment of the present invention, the seed sowing device further includes:

[0035] Multiple elastic blocking structures are provided, each corresponding to a seed inlet guide structure. One end of the elastic blocking structure is connected to the outside of the seed inlet guide structure, and the other end of the elastic blocking structure extends to the outer port of the seed inlet guide groove and blocks the outside of the seed inlet guide groove.

[0036] Within the seed-feeding area, during the process of the seed-feeding guide trough in the open state guiding the seeds to enter, the elastic blocking structure on the outside of the seed-feeding guide trough blocks the seeds entering the open seed-feeding guide trough and guides the seeds to move toward the seed-taking hole that is directly opposite the open seed-feeding guide trough.

[0037] In this embodiment, an elastic blocking structure is provided. Seeds partially entering the open seed feeding guide 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 and be collected within the seed feeding guide groove, further improving the smoothness of seed entry. Additionally, the elastic blocking structure can also block seeds entering the seed feeding guide groove and guide them towards the seed picking hole directly opposite the groove, further improving the smoothness of seed picking and preventing seed shortages. This, in turn, further improves the accuracy of seed picking and sowing by the seed sowing device.

[0038] According to one embodiment of the present invention, the roller assembly includes:

[0039] The support shaft is horizontally positioned.

[0040] A fixed disc is fixedly connected to the support shaft perpendicularly to the support shaft;

[0041] A rolling disc is rotatably mounted on the support shaft, parallel to the fixed disc;

[0042] A circular wheel is fixedly connected to the rolling disk near its edge. The circular wheel is located between the fixed disk and the rolling disk. The fixed disk movably abuts against one side of the circular wheel. An annular groove is provided on the inner surface of the circular wheel. Multiple seed outlets are equidistantly spaced on the surface of the circular wheel. The seed outlets communicate with the annular groove. Multiple seed-taking structures are installed within the annular groove. Each seed-taking guide structure includes a rotating connection and a seed-taking guide. The moving connection part is rotatably mounted on the annular wheel body at both ends along the axial direction of the roller assembly. The seed feeding guide part is located in the annular groove, and one end of the seed feeding guide part is connected to the rotating connection part. The other end of the seed feeding guide part extends away from the rotating connection part to form a free end. A plurality of seed feeding guide grooves are provided at intervals on the free end of the seed feeding guide 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.

[0043] In the seed-feeding area, the seed-feeding guide structure, driven by the swing drive mechanism, swings near the wheel surface of the roller assembly to open the seed-taking hole. When the seed-feeding channel formed between the seed-feeding hole and the seed-feeding guide groove is fully open, the seeds in the open seed-feeding guide groove can enter the seed-feeding hole that is directly opposite the open seed-feeding guide groove.

[0044] In the seed storage area, the seed-feeding guide structure, driven by the swing drive mechanism, swings away from the wheel surface of the roller assembly to open the seed-taking hole. The seed-taking structure storing seeds rolls towards the top of the roller assembly, and the seeds located in the seed-taking hole remain in the seed-taking hole during the rolling process; or at least a portion of the seed-feeding guide structure blocks the seed-taking hole, and the seed-feeding guide structure can block and restrict the seeds located in the seed-taking hole.

[0045] In the seeding area, the seed feeding guide 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 discharge channel formed between the seed picking hole and the seed discharge outlet is fully opened, the seeds located in the seed picking hole can be thrown out of the seed picking hole and discharged from the seed discharge outlet.

[0046] 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 feeding guide 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 seed sowing device on the frame of the seeder.

[0047] According to one embodiment of the present invention, the annular wheel body includes: wheel body units, wherein a plurality of wheel body units are provided, and the plurality of wheel body units are sequentially connected end to end to form a wheel body body, wherein the wheel body body has a plurality of seed outlets at equal intervals on its wheel surface; and a limiting ring, which is sleeved on the outer periphery of the wheel body body, wherein the limiting ring has a through-hole for passing seeds corresponding to the plurality of seed outlets.

[0048] In this embodiment, the wheel body is formed by assembling multiple wheel body units sequentially end to end. Multiple wheel body units can be manufactured and then assembled sequentially end to end to form a circular wheel body. Compared with the wheel body obtained by integral processing, the processing difficulty of the circular wheel body is reduced, and the production cost of the circular wheel body is also reduced. Furthermore, by providing a limiting ring on the outside of the wheel body, the stability of the circular wheel body is further improved.

[0049] In addition, the present invention provides a seeder, comprising: a traction device for driving the seeder to move; a frame connected to the traction device; a seed sowing device, wherein multiple seed sowing devices are provided and an array of multiple seed sowing devices 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 conveying pipe.

[0050] In this embodiment, the seeder has multiple seed-planting devices arrayed on its frame. This allows for precise simultaneous seed picking and planting by multiple seed-planting devices, and the accurate adjustment of the seed quantity planted by each seed-planting device in each planting cycle facilitates uniform sowing. Furthermore, the seed quantity planted by each seed-planting device in each planting cycle is easily adjustable. By adjusting the seed quantity planted by each seed-planting device in each planting cycle according to the seed quantity requirements of the land to be sown, the seed quantity of the seeder can be adjusted to meet the seed quantity requirements of different lands to be sown, thereby improving the seeder's applicability to different types of land. Attached Figure Description

[0051] 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.

[0052] Figure 1 This is a schematic diagram of the seed sowing device according to an embodiment of the present invention;

[0053] Figure 2 This is a schematic diagram of the structure of the annular wheel body according to an embodiment of the present invention;

[0054] Figure 3 for Figure 1 A schematic diagram of the seed sowing device after the fixing disc has been removed;

[0055] Figure 4 for Figure 3 A front view of the seed planting device after it has been aligned.

[0056] Figure 5 for Figure 3 Rear view of the seed planting device after it has been aligned;

[0057] Figure 6 This is an exploded view of the seed picking structure, the seed inlet constraint structure, the seed inlet guiding structure, the brush, and the torsion spring according to an embodiment of the present invention.

[0058] The attached diagram lists the components represented by each number as follows:

[0059] 1. Roller assembly; 2. Seed picking structure; 3. Seed feeding guide structure; 4. Guide groove feeding constraint structure; 5. Brush; 6. Swing arm; 7. Torsion spring; 8. 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 structure two; 17. Support structure one; 18. Fixing bolts; 20. Installation. 21. Protrusion, 22. Support block, 23. Arc-shaped rotating clearance groove, 30. Seed picking hole, 31. Rotating shaft, 32. Seed feeding guide, 40. Pin, 41. Covering body, 50. Arc-shaped protrusion structure, 51. Brush seat, 60. Brush bristles, 61. Swing connecting arm, 80. Stop shaft, 82. Rotating rocker, 83. Mouth closing baffle, 84. Fixing part, 85. Return spring, 16. Locking nut 102. Gasket 1; 103. Limiting sleeve; 111. Observation port; 112. Seed discharge port; 113. Supporting protrusion ring; 121. Connecting lug 1; 141. Connecting protrusion; 142. Supporting sleeve 1; 143. Supporting bearing 1; 144. Supporting bearing 2; 145. Gasket 2; 146. Locking nut 2; 151. Swing drive rail; 152. Connecting lug 2; 171. Arc-shaped connecting plate; 172. 301. Fan-shaped support protrusion; 311. Installing head; 312. Seed inlet guide groove; 313. Brush mounting groove; 314. Mounting through hole one; 401. Seed passage; 402. Positioning through hole two; 411. Plug protrusion; 601. Insertion through groove; 602. Pin hole one; 603. Limiting through hole; 1711. Seed outlet one; 1712. Seed outlet two; 3011. Pin hole two. Detailed Implementation

[0060] 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.

[0061] 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.

[0062] 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.

[0063] This embodiment provides a seed sowing device, such as... Figures 1 to 6 As shown, it includes:

[0064] The roller assembly 1 has a seed storage cavity for storing seeds. The roller assembly 1 has multiple seed discharge outlets spaced apart on the circumferential surface of the rollers, and the multiple seed discharge outlets are respectively connected to the seed storage cavity.

[0065] 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. The seed picking structure 2 is provided with multiple seed picking holes 23 at intervals along the axial direction of the roller assembly 1 for picking up seeds. Each seed picking hole 23 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.

[0066] The seed feeding guide structure 3 is provided in multiple ways, corresponding one-to-one with the seed picking structure 2. The multiple seed feeding guide 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 feeding guide structure 3 is provided with multiple seed picking holes 23 on the side facing the seed picking structure 2, and multiple seed feeding guide grooves 311 are provided for guiding the seeds to feed. The seed feeding guide grooves 311 are open on the side facing the seed picking structure 2. The outline of the seed feeding guide grooves 311 is adapted to the shape of the seeds. The seed feeding guide grooves 311 can adjust the posture of the seeds that are close to them and sequentially accommodate and guide a seed whose posture is adapted to the seed feeding guide groove 311 to pass through the seed picking hole 23.

[0067] The seed inlet constraint structure 4 corresponds to multiple seed inlet guide structures 3. The multiple seed inlet constraint structures 4 are detachably connected to the seed inlet guide structure 3. The seed inlet constraint structure 4 is located on the side of the seed inlet guide groove 311 facing the inside of the roller assembly 1 and can open and close the seed inlet guide groove 311 respectively.

[0068] During the rolling process of the roller assembly 1, in the seed feeding area, the open seed feeding guide groove 311 adjusts the posture of the nearby seeds and guides them into the seed feeding area. Seeds whose posture matches the seed feeding guide groove 311 enter the open seed feeding guide groove 311 on the seed feeding guide structure 3 located in the seed feeding area. The seeds entering the open seed feeding guide groove 311 then enter the seed picking hole 23 located directly opposite the open seed feeding guide groove 311. In the seed storage area, the seeds entering the seed picking hole 23 are stored in the seed picking hole 23 on the seed picking structure 2 located in the seed storage area. In the seed feeding area, the seeds stored in the seed picking hole 23 on the seed picking structure 2 located in the seed feeding area are fed out and discharged through the seed discharge outlet.

[0069] In this embodiment, as Figures 1 to 6 As shown, the seed entry guide groove 311 in this embodiment can adjust the posture of the seeds approaching it and guide the seeds to enter. Before the seeds enter the seed collection hole 23, the posture of the seeds is adjusted by the seed entry guide groove 311, so that the posture of the seeds during the process of entering the seed collection hole 23 and after entering the seed collection hole 23 is relatively determined. Moreover, the seed entry guide groove 311 guides the seeds to enter, which is conducive to the seeds entering the seed collection hole 23 more smoothly and avoids the seed collection hole 23 from being missing seeds.

[0070] Furthermore, such as Figure 2 and Figure 6 As shown, the seed inlet guide groove 311 can adjust the posture of the seeds close to it and sequentially accommodate and guide the seeds toward the seed collection hole 23 through a seed whose posture is adapted to the seed inlet guide groove 311. The seed inlet constraint structure 4 controls the opening and closing state of the seed inlet guide groove 311, restricting the seeds from entering the seed inlet guide groove 311 when it is closed. This restricts the seed entry of some seed inlet guide grooves 311, so that each seed inlet guide structure 3 has a suitable number of seed inlet guide grooves 311 that can be seeded. This restricts the seed entry of some seed collection holes 23, thereby adjusting the number of seeds taken out by each seed collection structure 2 in one seed collection cycle, and adjusting the number of seeds put in by the seed sowing device in each seed sowing cycle.

[0071] Furthermore, such as Figure 6As shown, the seed inlet guide groove 311 can only accommodate and allow one seed whose posture is compatible with the seed inlet guide groove 311 to pass through, avoiding multiple seeds being squeezed into the seed inlet guide groove 311 at the same time and causing seed blockage. In addition, each seed picking hole 23 can hold one seed, ensuring that each seed picking hole 23 only holds one seed in the seed inlet area, and thus ensuring that each seed picking hole 23 only discharges one seed in the seeding area. Furthermore, the number of seed picking holes 23 provided on each seed picking structure 2 is fixed, and each seed picking structure 2 takes out a fixed number of seeds in one seed picking cycle and releases a fixed number of seeds in one seeding cycle, thereby achieving precise seed picking and seeding.

[0072] Furthermore, such as Figure 2 and Figure 6 As shown, the seed feeding constraint structure 4 is detachable. It can control the on / off state of the seed feeding guide 311 by replacing the appropriate guide trough seed feeding constraint structure 4 according to the seed feeding requirements of the land to be sown, thereby restricting the seed feeding. This restricts the seed feeding of a certain number of seed feeding guide troughs 311 and seed picking holes 23, ensuring that each seed feeding guide structure 3 has a suitable number of seed feeding guide troughs 311 capable of feeding seeds, and that each seed picking structure 2 has a suitable number of seed picking holes 23 for picking, storing, and feeding seeds. This allows for adjustment of the seed feeding amount of the seed sowing device, meeting the seed feeding requirements of different lands to be sown, improving the applicability of the seed sowing device to different lands to be sown, and the method of adjusting the seed feeding amount of the seed sowing device is simple and easy to implement.

[0073] One embodiment of the present invention, such as Figure 6 As shown, the seed-feeding guide structure 3 is provided with a connecting part 1, and the seed-feeding constraint structure 4 is provided with a connecting part 2 corresponding to the connecting part 1, which can be detachably connected to the connecting part 1. The connecting part 2 is detachably connected to the connecting part 1. In this embodiment, by detachably connecting the connecting part 2 to the connecting part 1, it is convenient to detachably connect the seed-feeding constraint structure 4 to the seed-feeding guide structure 3, thereby facilitating the disassembly and assembly of the seed-feeding constraint structure 4, and making it easier to replace and maintain the seed-feeding constraint structure 4.

[0074] One embodiment of the present invention, such as Figure 2 , Figure 3 and Figure 6As shown, the seed feeding constraint structure 4 has several seed feeding guide slots 311 corresponding to several seed feeding guide slots 311, each with several seed passage ports 401 for passing seeds. After connecting the seed feeding constraint structure 4 to the seed feeding constraint structure 4 and making several seed passage ports 401 face each of several seed feeding guide slots 311, the seed feeding constraint structure 4 blocks the seed feeding guide slots 311 that do not have a seed passage port 401 facing them.

[0075] In this embodiment, as Figure 2 , Figure 3 and Figure 6 As shown, by providing several seed passages 401 on the seed inlet constraint structure 4, it is convenient to restrict the seed inlet guide trough 311 that is not directly opposite to the seed passage 401, so that each seed inlet guide structure 3 has a suitable number of seed inlet guide troughs 311 that can be seeded, and thus each seed picking structure 2 has a suitable number of seed picking holes 23 for picking, storing and planting seeds; in addition, it is convenient to simplify the structure of the seed inlet constraint structure 4, which is beneficial to reduce the production and use costs of the seed sowing device.

[0076] Furthermore, such as Figure 2 , Figure 3 and Figure 6 As shown, the seed-entry constraint structure 4 in this embodiment includes a shielding body 40, which is a flat plate structure. Seed passage openings 401 are formed on the shielding body 40. The connecting part on the seed-entry constraint structure 4 in this embodiment is a mounting groove 313, and the shielding body 40 is installed in the mounting groove 313. Furthermore, the seed-entry constraint structure 4 in this embodiment has four seed passage openings 401, while each seed-entry guiding structure 3 has five seed-entry guiding grooves 311, and each seed-taking structure 2 has five seed-taking holes 23. One seed-entry guiding groove 311 is restricted from seed entry, and consequently, one seed-taking hole 23 is restricted from seed entry. Alternatively, the seed passage openings 401 can be three, two, or other configurations as needed.

[0077] In this embodiment, as Figure 6As shown, the inner port of the seed inlet guide 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 large U-shaped opening extends to the outer port of the seed inlet guide 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 the large U-shaped opening extends to a position close to the outer port of the seed inlet guide groove 311, it narrows inward 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 inlet guide groove 311 into the seed collection hole 23 under the squeezing action of other seeds. The seed inlet guide groove 311 in this embodiment is suitable for wheat seeds and other seeds with similar shapes to wheat seeds; in addition, the outline and size of the seed inlet guide groove 311 can be designed according to the shape of different kinds of seeds.

[0078] In this embodiment, as Figure 6 As shown, the open end of the seed collection hole 23 is oval-shaped, and the seed passage 401 has a U-shaped structure. After the shielding body 40 is installed in the installation groove 313 and several seed passages 401 are aligned with several seed entry guide grooves 311, the seed passages 401 form the entry part of the seed entry guide groove 311. This makes the size of the groove formed by the seed passage 401 and the seed entry guide groove 311 it is aligned with the size of the seed entry guide groove 311 with normal size, thereby reducing or avoiding the seed passage 401 affecting the accuracy of seed entry and storage in the seed entry guide groove 311. The seed entry guide groove 311 with normal size is one that can just hold one seed.

[0079] Furthermore, such as Figure 6 As shown, the seed-feeding constraint structure 4 also includes plugging protrusions 411. Several plugging protrusions 411 are provided facing several seed-feeding guide grooves 311 that are not facing the seed-feeding inlets 401. The plugging protrusions 411 are connected to the shielding body 40. After the shielding body 40 is connected to the seed-feeding guide structure 3 and several seed-feeding inlets 401 are facing several seed-feeding guide grooves 311, the plugging protrusions 411 extend into the seed-feeding guide grooves 311 that are not facing the seed-feeding inlets 401.

[0080] Furthermore, such as Figure 2 , Figure 3 and Figure 6As shown, in this embodiment, the plug protrusion 411 protrudes towards the seed-taking structure 2 on the side facing the seed-taking structure 2 to form an arc-shaped protrusion structure 41. This helps to avoid interference between the seed-taking structure 2 and the seed-taking structure 2 when the seed-taking guide structure 3 moves along with the seed-taking guide structure 3. It also helps to install the seed-taking guide structure 3 compactly close to the seed-taking structure 2.

[0081] One embodiment of the present invention, such as Figure 6 As shown, the seed sowing device also includes locking components. Multiple seed inlet guide structures 3 are provided, each corresponding to one of the seed inlet guide structures 3. The seed inlet constraint structures 4 are respectively connected to the seed inlet guide structures 3 via the locking components. In this embodiment, locking the seed inlet constraint structures 4 via the locking components helps to fix and limit the position of the seed inlet constraint structures 4, ensuring their fixed position and improving the reliability of their installation. It also facilitates quick connection of the seed inlet constraint structures 4 to the seed inlet guide structures 3.

[0082] Furthermore, such as Figure 6 As shown, in this embodiment, the locking component is specifically a screw. The seed-feeding guide structure 3 has two positioning through holes 314 on one side for mounting the shielding body 40. The shielding body 40 has two positioning through holes 402 corresponding to the two positioning through holes 314. The screw passes through the positioning through holes 402 and the positioning through holes 314 to fix the shielding body 40 to the seed-feeding guide structure 3. Furthermore, the guide groove seed-feeding constraint structure 4 in this embodiment can also be configured as other structures, and the guide groove seed-feeding constraint structure 4 can also be connected to the seed-feeding guide structure 3 in other ways. It should be noted that the screw in this embodiment is not shown in the diagram; additionally, other locking structures can also be used.

[0083] One embodiment of the present invention, such as Figures 2 to 4 As shown, the seed sowing device also includes:

[0084] The swing drive mechanism is installed on the roller assembly 1. The seed feeding guide structure 3 is connected to the swing drive mechanism and can swing relative to the seed picking structure 2 to any position of the seed picking hole 23 under the drive of the swing drive mechanism, so as to open and close the seed picking hole 23.

[0085] During the rolling of the roller assembly 1, in the seed feeding area, the seed feeding guide 311, which is in the open state, adjusts the posture of the seeds approaching it and guides the seeds to feed. Seeds whose posture matches the seed feeding guide 311 enter the seed feeding guide 311 of the seed feeding guide structure 3 located in the seed feeding area. In the seed storage area, the seeds that have entered the seed feeding guide 311 in the open state enter and are stored in the seed taking hole 23 located in the seed storage area, which is directly opposite the seed feeding guide 311 in the open state. In the seed feeding area, the seeds stored in the seed taking hole 23 are thrown out from the seed taking hole 23 of the seed taking structure 2 located in the seed feeding area and discharged through the seed discharge outlet.

[0086] In this embodiment, as Figures 2 to 4 As shown, the seed feeding guide structure 3 swings relative to the seed picking structure 2 under the drive of the swing drive mechanism. This causes the seeds approaching the open seed feeding guide groove 311 to adjust their posture under the action of the seed feeding guide groove 311. This helps to ensure that the posture of the seeds approaching the seed feeding guide groove 311 is adapted to the seed feeding guide groove 311. After the seeds with the posture adapted to the open seed feeding guide groove 311 enter the seed feeding guide groove 311, they enter the seed picking hole 23 which is set directly opposite the open seed feeding guide groove 311. This improves the smoothness of the seeds entering the seed picking hole 23 and avoids the seed picking hole 23 being empty.

[0087] In this embodiment, as Figure 2 , Figure 6 As shown, the seed feeding guide structure 3 includes a rotating connecting part and a seed feeding guide 31. The end face of the free end of the seed feeding guide 31 protrudes towards the seed taking structure 2 to form an arc-shaped protrusion. The end face of the seed taking structure 2 facing the arc-shaped protrusion deviates from the arc-shaped protrusion and forms a swing-avoiding arc-shaped groove. When the seed feeding guide 31 swings, the arc-shaped protrusion can adapt to and abut against the swing-avoiding arc-shaped groove and swing through the swing-avoiding arc-shaped groove.

[0088] In this embodiment, as Figure 2 , Figure 3 and Figure 6 As shown, in this embodiment, the rotating connecting part is horizontally installed in the roller assembly 1 parallel to the rotation center of the roller assembly 1, the seed picking structure 2 is horizontally installed in the roller assembly 1 parallel to the rotating connecting part, and the length direction of the seed inlet guide groove 311 is the same as the extension direction of the seed inlet guide part 31.

[0089] One embodiment of the present invention, such as Figure 1 , Figures 3 to 5As shown, the seed sowing device also includes a seed-in-soil mechanism for instilling seeds discharged from the seed outlet into the soil. Multiple seed-in-soil mechanisms are provided corresponding to multiple seed outlets. Multiple seed-in-soil mechanisms are circumferentially spaced on the outer wheel surface of the roller assembly 1. 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 1, in the seed-instilling area, the seeds stored in the seed-taking hole 23 on the seed-taking structure 2 located in the seed-instilling area are discharged from the seed outlet and enter the soil through the seed transmission channel.

[0090] In this embodiment, as Figure 1 , Figures 3 to 5 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.

[0091] In this embodiment, as Figure 1 , Figures 3 to 5 As shown, the seed-infeeding mechanism in this embodiment includes multiple seeding nozzles 8, each corresponding to a multiple seed discharge outlet, and is installed on the outer wheel surface of the roller assembly 1. Furthermore, the seeding nozzle 8 in this embodiment includes a fixing part 82, a nozzle closing baffle 81, a rotating rocker 80, and a return spring 83. The fixing part 82 is provided with a seeding channel, and the fixing part 82 is fixedly connected to the outer wheel surface of the roller assembly 1, and the seeding channel is connected to the seed discharge outlet.

[0092] Furthermore, such as Figure 1 , Figures 3 to 5As shown, the lower end of the nozzle closing baffle 81 is rotatably connected to the fixed part 82. One end of the rotating rocker 80 is fixedly connected to the lower end of the nozzle closing baffle 81. The nozzle closing baffle 81 can rotate relative to the fixed part 82 under the drive of the rotating rocker 80 to open and close the seeding channel. The other end of the rotating rocker 80 extends away from the nozzle closing baffle 81 to form an arc-shaped free end. The middle of the free end of the rotating rocker 80 is provided with a clearance for avoiding the fixed part 82 that is close to it during rotation. One end of the return spring 83 is connected to the free end of the rotating rocker 80, and the other end of the return spring 83... The end is connected to the wheel surface of the roller assembly 1, and each rotating rocker 80 is supported by two return springs 83. The two return springs 83 are located on both sides of the clearance opening. When the free end of the rotating rocker 80 is subjected to pressure on the wheel surface of the roller assembly 1, the return spring 83 is compressed, and the rotating rocker 80 drives the hole closing baffle 81 to rotate away from the fixed part 82 and open the sowing channel. When the free end of the rotating rocker 80 is relieved of the pressure on the wheel surface of the roller assembly 1, the return spring 83 returns to its elasticity, and the rotating rocker 80 drives the hole closing baffle 81 to rotate close to the fixed part 82 and close the sowing channel.

[0093] Furthermore, such as Figure 1 , Figures 3 to 5 As shown, the portion of the rotating rocker 80 near the apex closing baffle 81 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 80 along the axial direction of the wheel body of the roller assembly 1. Both ends of the rotating support rod are fixedly connected to the wheel body of the roller assembly 1. The roller assembly 1 is provided with a blocking annular disk 13 and a rolling disk 14. Specifically, both ends of the rotating support rod are fixed to the inner sidewalls of the edges of the blocking annular disk 13 and the rolling disk 14, respectively.

[0094] Furthermore, such as Figure 1 , Figures 3 to 5 As shown, during the rolling of the roller assembly 1, in the seed-collecting hole 23, the seeds stored in the seed-feeding area fall into the seeding channel of the seeding nozzle 8 under the action of gravity, and then the seeding channel of the seeding nozzle 8 is opened for sowing. It should be noted that in this embodiment, the seeding nozzle 8 is in a state where the rotating seesaw 80 is not under pressure, the return spring 83 is not compressed, and the seeding channel of the seeding nozzle 8 is in a closed state. During the sowing process, the seeding channel of the seeding nozzle 8 is opened due to the pressure of the rotating seesaw 80 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.

[0095] One embodiment of the present invention, such as Figure 2 and Figure 6 As shown, the seed sowing device also includes:

[0096] Multiple elastic blocking structures are provided, each corresponding to a seed inlet guide structure 3. One end of the elastic blocking structure is connected to the outside of the seed inlet guide structure 3, and the other end of the elastic blocking structure extends to the outside port of the seed inlet guide groove 311 and blocks the outside of the seed inlet guide groove 311.

[0097] Within the seed-feeding area, during the process of seed-feeding guide trough 311 being in the open state to guide the seeds approaching it, an elastic blocking structure on the outside of the seed-feeding guide trough 311 blocks the seeds entering the open seed-feeding guide trough 311 and guides the seeds to move toward the seed-taking hole 23 that is directly opposite the open seed-feeding guide trough 311.

[0098] In this embodiment, as Figure 2 and Figure 6 As shown, by providing an elastic blocking structure, the seeds partially entering the open seed feeding guide 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 feeding guide groove 311 to fall completely into and be collected within the seed feeding guide groove 311, further improving the smoothness of seed entry into the seed feeding guide groove 311. In addition, the elastic blocking structure can also block the seeds entering the seed feeding guide groove 311 and guide the seeds to move towards the seed picking hole 23 located directly opposite the seed feeding guide groove 311, further improving the smoothness of seed picking hole 23. This helps to avoid seed shortage in the seed picking hole 23, and further improves the accuracy of seed picking and sowing by the seed sowing device.

[0099] In this embodiment, as Figure 2 and Figure 6 As shown, the elastic blocking structure connected to the outer side of the seed-feeding guide structure 3 includes a brush 5. The bristles 51 on the brush 5 are independent of each other. When part of the seed is squeezed against part of the bristles 51, the squeezed bristles 51 undergo elastic deformation, thereby facilitating the seed to adapt to the contour of the seed-feeding guide groove 311 and fall into the seed-feeding guide 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 outer side of the seed-feeding guide structure 3, and the brush seat 50 is fixedly installed in the brush mounting groove 312. 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 inlet guide groove 311 means that the placement posture of the seeds matches the outline of the seed inlet guide groove 311, and the seeds can enter the seed inlet guide groove 311.

[0100] One embodiment of the present invention, such as Figures 1 to 5 As shown, the roller assembly 1 includes:

[0101] Support shaft 10 is horizontally positioned.

[0102] The fixed disk 11 is fixedly connected to the support shaft 10 perpendicular to the support shaft 10;

[0103] The rolling disc 14 is rotatably mounted on the support shaft 10, parallel to the fixed disc 11;

[0104] A circular wheel body is fixedly connected to the rolling disk 14 near its edge. The circular wheel body is located between the fixed disk 11 and the rolling disk 14. The fixed disk 11 movably abuts against one side of the circular wheel body. An annular groove is provided on the inner surface of the circular wheel body. Multiple seed outlets are equidistantly spaced on the surface of the circular wheel body, communicating with the annular groove. Multiple seed-taking structures 2 are installed within the annular groove. The seed-entry guiding structure 3 includes a rotating connecting part and a seed-entry guiding part 31. The connecting part is rotatably mounted on the annular wheel body at both ends along the axial direction of the roller assembly 1. The seed feeding guide part 31 is located in the annular groove, and one end of the seed feeding guide part 31 is connected to the rotating connecting part. The other end of the seed feeding guide part 31 extends away from the rotating connecting part to form a free end. Multiple seed feeding guide grooves 311 are provided at intervals on the free end of the seed feeding guide part 31. The rotating connecting part 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.

[0105] In the seed feeding area, the seed feeding guide structure 3, driven by the swing drive mechanism, swings near the wheel surface of the roller assembly 1 to open the seed picking hole 23. When the seed feeding channel formed between the seed picking hole 23 and the seed feeding guide groove 311 is fully opened, the seeds in the seed feeding guide groove 311 in the open state can enter the seed picking hole 23 which is directly opposite the seed feeding guide groove 311 in the open state.

[0106] In the seed storage area, the seed feeding guide 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 23. The seed picking structure 2, which stores the seeds, rolls towards the top of the roller assembly 1. The seeds in the seed picking hole 23 remain in the seed picking hole 23 during the rolling process; or at least a part of the seed feeding guide structure 3 blocks the seed picking hole 23, and the seed feeding guide structure 3 can block and restrict the seeds in the seed picking hole 23.

[0107] In the seeding area, the seed feeding guide 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 23. When the seed discharge channel formed between the seed picking hole 23 and the seed discharge outlet is fully opened, the seeds located in the seed picking hole 23 can be thrown out from the seed picking hole 23 and discharged from the seed discharge outlet.

[0108] In this embodiment, as Figures 1 to 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 feeding guide 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 seed sowing device on the frame of the seeder.

[0109] In this embodiment, as Figures 1 to 3 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, extending forward perpendicularly to the rolling disk 14 to form a free end. The support sleeve 142 is rotatably mounted on the outer periphery of the support shaft 10 by at least two bearings and is fixed by a limiting bushing 103. Furthermore, a support ring 113 is provided in the middle of the outer side of the fixed disk 11. The middle of the support ring 113 forms a hole for the support shaft 10 to pass through. The second shaft hole of the support shaft 10; in addition, the second support sleeve is provided in the middle of the inner side of the fixed disk 11 corresponding to the first support sleeve 142. The second support sleeve extends backward perpendicular to the fixed disk 11 to form a free end. The side of the second support sleeve close to the fixed disk 11 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 second support sleeve is rotatably sleeved on the outer side of the first support sleeve 142 by the first support bearing 143. The first support bearing 143 is fixedly installed on the first support sleeve 142, so that the first support sleeve 142 can rotate relative to the second support sleeve.

[0110] Furthermore, such as Figure 1 and Figure 5 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 144 is fixed to the rear end of the support shaft 10 and installed in the installation groove, the rear end of the support bearing 144 is locked by a locking nut 146, and a washer 145 is installed between the locking nut 146 and the support bearing 144.

[0111] Furthermore, such as Figure 1As 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.

[0112] Furthermore, such as Figure 1 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.

[0113] Furthermore, such as Figure 1 As shown, in order to ensure that the fixed disc 11 can be moved and stopped 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, a stepped circular groove is provided 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.

[0114] In this embodiment, as Figures 2 to 4As shown, the swing drive mechanism includes: a swing drive ring 15, which is mounted on one side of the fixed disc 11, and the side of the swing drive ring 15 located in the seeding area has an outwardly protruding swing drive rail 151, which includes multiple alternating arc-shaped protrusions and multiple arc-shaped grooves; the swing drive mechanism also includes a swing arm 6, which 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 connection part that passes through the second support structure 16, and 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 drive ring 15 tangentially to the outer circumferential direction; the swing drive mechanism also includes a torsion spring 7, which includes a helical body and torsion arms one and two respectively connected to both ends of the helical body, and the helical body is sleeved Located on the rotating connection part of the seed feeding guide structure 3 and between the swing connecting arm 60 and the seed feeding guide part 31, the first torsion arm is connected to the second support structure 16, and the second torsion arm is connected to the swing connecting arm 60. When the roller assembly 1 rolls, when the stop shaft 61 is tangential to the outer circumferential side of the swing drive ring 15, the swing arm 6 drives the seed feeding guide structure 3 to swing and completely close the feeding channel formed between the seed picking hole 23 and the seed feeding guide groove 311. When the stop 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 7, it drives the swing arm 6 to swing. The swing arm 6 can drive the seed feeding guide structure 3 to swing intermittently and completely open the feeding channel formed between the seed picking hole 23 and the seed feeding guide groove 311.

[0115] In this embodiment, as Figures 2 to 4 As 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-infeeding 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 7, thereby driving the swing arm 6 to swing. The swing arm 6 can drive the seed-infeeding guide structure 3 to swing intermittently and fully open the seed-infeeding channel formed between the seed-taking hole 23 and the seed-infeeding guide groove 311, thereby facilitating the seed infeeding in the seed-storage cavity located in the seed-infeeding area to enter the seed-taking hole 23 for seed-infeeding.

[0116] Furthermore, such as Figure 2 , Figure 3 and Figure 6As shown, the seed feeding guide structure 3 includes a rotating connecting part and a seed feeding guide part 31. The rotating connecting part on the seed feeding guide structure 3 is a rotating shaft 30. The seed feeding guide part 31 is fixedly connected to one side of the rotating shaft 30. A first mounting hole is provided on the support structure 17, and the rear end of the rotating shaft 30 is rotatably installed in the first mounting hole. A second mounting hole is provided on the support structure 16, and the front end of the rotating shaft 30 is rotatably installed in the second mounting hole and passes forward through the support structure 16. Furthermore, to improve the rotational stability of the rotating shaft 30, a first rotating support sleeve is installed in the first mounting hole, and a second rotating support sleeve is installed in the second mounting hole. Both ends of the rotating shaft 30 are rotated and supported by the first and second rotating support sleeves, respectively. The first and second rotating support sleeves in this embodiment are not shown in the figures.

[0117] Furthermore, such as Figure 6 As shown, in this embodiment, the seed-taking structure 2 has an installation protrusion 20 on its outer side and a limiting installation groove on its inner side. The installation protrusion 20 is installed in the limiting installation groove. The seed-taking structure 2 also has a support block 21. The support block 21 is connected to the installation protrusion 20 and extends to the inner side of the roller assembly 1. One side of the support block 21 has an arc-shaped rotation clearance groove 22. The rotating shaft 30 rotates in the second mounting hole and the first mounting hole. The middle part of the rotating shaft 30 is housed in the arc-shaped rotation clearance groove 22.

[0118] Furthermore, such as Figure 6 As shown, the rotating shaft 30 has a mounting head 301 at one end that passes through the support structure 2 16. 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 support structure 2 16 and is connected to a stop shaft 61. The stop shaft 61 extends toward the fixed disk 11. The swing connecting arm 60 has a pin hole 602 at one end that has the insertion slot 601. The mounting head 301 has a pin hole 3011 corresponding to the pin hole 602. A pin 32 is inserted into the pin hole 602 and the pin hole 3011. The pin 32 limits the swing arm 6 to the mounting head 301.

[0119] Furthermore, such as Figure 2 , Figure 3 and Figure 6As shown, 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 an outwardly protruding swing drive rail 151 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 of the roller assembly 1, when the stop shaft 61 passes the arc-shaped protrusion on the swing drive rail 151, the swing arm 6 swings away from the swing drive ring 15 and swings outward, driving the seed-feeding guide part 31 to swing and fully open the seed-feeding channel formed between the seed-taking hole 23 and the seed-feeding guide groove 311. When the stop shaft 61 passes the arc-shaped groove on the swing drive rail 151, the swing arm 6 swings close to the swing drive ring 15 under the action of the torsion spring 7, driving the seed-feeding guide part 31 to swing and close part of the seed-feeding channel formed between the seed-taking hole 23 and the seed-feeding guide groove 311.

[0120] Furthermore, such as Figures 2 to 4 As shown, 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 inlet guide 31 to swing and fully open the seed inlet channel formed between the seed inlet 23 and the seed inlet guide groove 311. This facilitates the rotation of the rotating shaft 30 to open the seed inlet channel formed between the seed inlet 23 and the seed inlet guide groove 311 multiple times, ensuring that a seed can enter and be stored in the seed inlet 23. Furthermore, in order to better block and restrict the seeds within the seed collection hole 23 in the seed storage area, at least a portion of the seed entry guide structure 3 can block the seed collection hole 23. The seed entry guide structure 3 can block and restrict the seeds located in the seed collection hole 23. 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 entry guide structure 3 blocks the seed collection hole 23. Furthermore, the swing drive mechanism can also be other rotary drive devices.

[0121] In this embodiment, as Figure 6 As shown, the torsion arm 1 on the torsion spring 8 is specifically connected to the support structure 2 16. The annular convex rail 1 on the support structure 2 16 has a limiting groove on its front side for engaging the torsion arm 1, and the torsion arm 1 is installed in the limiting groove. The torsion arm 2 on the torsion spring is inserted into the swing connecting arm, and the swing connecting arm has a limiting through hole 603, in which the torsion arm 2 is inserted. It should be noted that the roller assembly 1 in this embodiment can also be configured with other structures, which is beneficial for the seed sowing device to sow seeds.

[0122] One embodiment of the present invention, such as Figure 2As shown, the annular wheel body includes: wheel body units, of which multiple wheel body units are connected end to end in sequence to form the wheel body body, and the wheel body body has multiple seed outlets at equal intervals on the wheel surface; and a limiting ring, which is fitted on the outer circumference of the wheel body body, and the limiting ring has a passage for seeds to pass through, corresponding to the multiple seed outlets.

[0123] In this embodiment, as Figure 2 As shown, the wheel body is formed by assembling multiple wheel body units sequentially end-to-end. Multiple wheel body units can be manufactured, and then these units can be sequentially connected end-to-end to form a circular wheel body. Compared to machining the wheel body as a single piece, this reduces the manufacturing difficulty and production cost of the circular wheel body. Furthermore, by providing a limiting ring on the outer side of the wheel body, the stability of the circular wheel body is further improved. It should be noted that the limiting ring in this embodiment is not illustrated.

[0124] In this embodiment, as Figure 2 As shown, the wheel unit includes a first support structure 17 and a second support structure 16. The first support structure 17 includes an arc-shaped connecting plate 171, a fan-shaped annular support protrusion 172, and a lateral limiting stop. The fan-shaped annular support protrusion 172 is connected to one side of the arc-shaped connecting plate 171 in the front-rear direction and protrudes inward from the arc-shaped connecting plate 171. The lateral limiting stop is connected to the other side of the arc-shaped connecting plate 171 in the front-rear direction opposite to the fan-shaped annular support protrusion 172 and protrudes inward from the arc-shaped connecting plate 171. The inner side of the arc-shaped connecting plate 171 and the outer side of the lateral limiting stop define a lateral arc-shaped mounting groove with an open outer side in the front-rear direction. The second support structure 16 is installed in the lateral arc-shaped mounting groove opposite to the fan-shaped annular support protrusion 172. An arc-shaped groove with an open inner side is defined between the arc-shaped connecting plate 171, the fan-shaped annular support protrusion 172, and the second support structure 16. Furthermore, the wheel unit in this embodiment can also be configured with other structures.

[0125] In this embodiment, as Figure 2 As shown, in this embodiment, the inner side of the multiple wheel units is defined to form an annular groove. Furthermore, in this embodiment, the arc-shaped connecting plate 171 is provided with a seed outlet, and the seed outlet provided by the arc-shaped connecting plate 171 specifically includes a seed outlet 1711 and a seed outlet 1712, which are circumferentially spaced apart.

[0126] In addition, the seeder provided in this embodiment includes: a traction device for driving the seeder to move; a frame connected to the traction device; a seed sowing device, wherein multiple seed sowing devices are provided and an array of multiple seed sowing devices 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 12.

[0127] In this embodiment, the seeder has multiple seed-planting devices arrayed on its frame. This allows for precise simultaneous seed picking and planting by multiple seed-planting devices, and the accurate adjustment of the seed quantity planted by each seed-planting device in each planting cycle facilitates uniform sowing. Furthermore, the seed quantity planted by each seed-planting device in each planting cycle is easily adjustable. By adjusting the seed quantity planted by each seed-planting device in each planting cycle according to the seed quantity requirements of the land to be sown, the seed quantity of the seeder can be adjusted to meet the seed quantity requirements of different lands to be sown, thereby improving the seeder's applicability to different types of land.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] 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 seed sowing device, 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 feeding guide structure has multiple structures corresponding to the seed picking structure. These multiple seed feeding guide structures are circumferentially spaced and installed in the seed storage cavity, close to the seed picking structure along the axial direction of the roller assembly. Each seed feeding guide structure has multiple seed feeding guide grooves on the side facing the seed picking structure, corresponding to the multiple seed picking holes. The seed feeding guide grooves are open on the side facing the seed picking structure, and their contours are adapted to the shape of the seeds. The seed feeding guide grooves can adjust the posture of the seeds close to them and sequentially accommodate and guide a seed whose posture is adapted to the seed feeding guide groove through the seed picking hole. The seed inlet constraint structure is provided in multiple ways, each corresponding to a seed inlet guide structure. The multiple seed inlet constraint structures are detachably connected to the seed inlet guide structure. The seed inlet constraint structure is located on the side of the seed inlet guide groove facing the inside of the roller assembly and can open and close the seed inlet guide groove respectively. During the rolling process, in the seed feeding area, the open seed feeding guide groove adjusts the posture of the nearby seeds and guides them into the seed feeding area. Seeds whose posture matches the seed feeding guide groove enter the open seed feeding guide groove on the seed feeding guide structure located in the seed feeding area. The seeds entering the open seed feeding guide groove then enter the seed picking hole located directly opposite the open seed feeding guide groove. In the seed storage area, the seeds that have entered the seed picking hole are stored in the seed picking hole 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. The seed-entry constraint structure has several seed passages for passing seeds, corresponding to several of the seed-entry guide slots. After connecting the seed-entry constraint structure to the seed-entry constraint structure and making several seed passages face each of the seed-entry guide slots, the seed-entry constraint structure blocks the seed-entry guide slots on the seed-entry constraint structure that do not have a seed passage facing them.

2. The seed sowing device according to claim 1, characterized in that, The seed feeding guide structure is provided with a connecting part one, and the seed feeding constraint structure of the guide groove is provided with a connecting part two that can be detachably connected to the connecting part one. The connecting part two is detachably connected to the connecting part one.

3. The seed sowing device according to any one of claims 1 to 2, characterized in that, Also includes: The locking element corresponds to multiple seed feeding guide structures, and the seed feeding constraint structure of the guide groove is connected to the seed feeding guide structure through the locking element.

4. The seed sowing device according to any one of claims 1 to 2, characterized in that, Also includes: A swing drive mechanism is installed on the roller assembly. The seed feeding guide structure is connected to the swing drive mechanism and can swing relative to the seed picking structure to any position at the port of the seed picking hole under the drive of the swing drive mechanism, thereby opening and closing the seed picking hole. During the rolling of the roller assembly, in the seed feeding area, the open seed feeding guide groove adjusts the posture of the nearby seeds and guides them into the seed feeding area. Seeds whose posture matches the seed feeding guide groove enter the seed feeding guide groove of the seed feeding guide structure located in the seed feeding area. In the seed storage area, the seeds that have entered the open seed feeding guide groove enter and are stored in the seed picking hole located in the seed storage area, which is directly opposite the open seed feeding guide groove. In the seed dispensing area, the seeds stored in the seed picking hole are dispensed from the seed picking hole of the seed picking structure located in the seed dispensing area and discharged through the seed discharge outlet.

5. The seed sowing device according to any one of claims 1 to 2, 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.

6. The seed sowing device according to any one of claims 1 to 2, characterized in that, Also includes: Multiple elastic blocking structures are provided, each corresponding to a seed inlet guide structure. One end of the elastic blocking structure is connected to the outside of the seed inlet guide structure, and the other end of the elastic blocking structure extends to the outer port of the seed inlet guide groove and blocks the outside of the seed inlet guide groove. Within the seed-feeding area, during the process of the seed-feeding guide trough in the open state guiding the seeds to enter, the elastic blocking structure on the outside of the seed-feeding guide trough blocks the seeds entering the open seed-feeding guide trough and guides the seeds to move toward the seed-taking hole that is directly opposite the open seed-feeding guide trough.

7. The seed sowing device according to claim 4, 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 is fixedly connected to the rolling disk near its edge. The circular wheel is located between the fixed disk and the rolling disk. The fixed disk movably abuts against one side of the circular wheel. An annular groove is provided on the inner surface of the circular wheel. Multiple seed outlets are equidistantly spaced on the surface of the circular wheel. The seed outlets communicate with the annular groove. Multiple seed-taking structures are installed within the annular groove. Each seed-taking guide structure includes a rotating connection and a seed-taking guide. The moving connection part is rotatably mounted on the annular wheel body at both ends along the axial direction of the roller assembly. The seed feeding guide part is located in the annular groove, and one end of the seed feeding guide part is connected to the rotating connection part. The other end of the seed feeding guide part extends away from the rotating connection part to form a free end. A plurality of seed feeding guide grooves are provided at intervals on the free end of the seed feeding guide 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-feeding guide structure, driven by the swing drive mechanism, swings near the wheel surface of the roller assembly to open the seed-taking hole. When the seed-feeding channel formed between the seed-feeding hole and the seed-feeding guide groove is fully open, the seeds in the open seed-feeding guide groove can enter the seed-feeding hole that is directly opposite the open seed-feeding guide groove. In the seed storage area, the seed-feeding guide structure, driven by the swing drive mechanism, swings away from the wheel surface of the roller assembly to open the seed-taking hole. The seed-taking structure storing seeds rolls towards the top of the roller assembly, and the seeds located in the seed-taking hole remain in the seed-taking hole during the rolling process; or at least a portion of the seed-feeding guide structure blocks the seed-taking hole, and the seed-feeding guide structure can block and restrict the seeds located in the seed-taking hole. In the seeding area, the seed feeding guide 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 discharge channel formed between the seed picking hole and the seed discharge outlet is fully open, the seeds located in the seed picking hole can be thrown out of the seed picking hole and discharged from the seed discharge outlet.

8. The seed sowing device according to claim 7, characterized in that, The annular wheel body includes: The wheel body unit is provided in multiple ways. The multiple wheel body units are connected end to end in sequence to form a wheel body body. The wheel body body has multiple seed discharge outlets at equal intervals on its wheel surface. A limiting ring is fitted around the outer circumference of the wheel body, and the limiting ring has a passage for the seeds to pass through, corresponding to a plurality of seed outlets.

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 seed sowing device according to any one of claims 1 to 8 is provided in a plurality of cases, and the plurality of seed sowing devices are arrayed and 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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