Agricultural seeder

Abstract

The invention discloses an agricultural seeder which comprises a rack, a seeding box, a driving assembly, a plurality of burying mechanisms, a plurality of soil opening mechanisms, a plurality of conveying mechanisms and a seeding mechanism, two supporting plates distributed side by side are arranged on the rack, the seeding box is arranged on the two supporting plates, and a plurality of partition plates are arranged in the seeding box; the seeding box is divided into a plurality of seeding chambers by the plurality of partition plates; the driving assembly and the plurality of burying mechanisms are respectively positioned on two sides of the seeding box and are arranged on the rack; the plurality of soil opening mechanisms and the plurality of burying mechanisms are arranged on the rack in a one-to-one correspondence manner, and the plurality of soil opening mechanisms are respectively positioned between the seeding box and the burying mechanisms; the plurality of conveying mechanisms are respectively arranged on the bottom wall of the seeding box. Therefore, the seeding rate can be accurately adjusted according to the characteristics of different crop varieties, the initial purchase cost of the equipment is reduced from the source, and meanwhile, a large amount of cost and resources can be effectively saved in the aspects of storage space, daily maintenance, part repair and the like of the equipment.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery, and in particular to an agricultural seeder. Background Art

[0002] In the field of agricultural production, the seeder is a key equipment for achieving efficient seeding operations. With the advancement of agricultural modernization, the requirements for seeding quality and accuracy are increasing.

[0003] In the process of modern agricultural production, the existing seed drills lack a flexible and effective seeding adjustment mechanism due to their own design limitations. Their operation mode is rigid, and most of them can only operate continuously according to the preset single fixed seeding amount. They are completely unable to make adaptive adjustments based on the unique seeding requirements of different crop varieties and the complex and changeable seeding situations such as different soil textures, fertility levels, and climate characteristics. Taking common crops as an example, wheat is a densely planted crop in most cases, and its seeding strategy tends to be a large amount of seeding, aiming to make full use of land area and light resources to achieve the ideal yield target; in sharp contrast, crops such as corn and peanuts, based on their growth habits and plant morphological characteristics, strictly require single precise seeding during the seeding process to ensure that each seedling can obtain sufficient space, nutrient supply, and good ventilation and light conditions in the subsequent growth and development stages. The shortcoming of this seed drill function directly causes farmers and agricultural producers to fall into an extremely difficult dilemma when dealing with the actual needs of rich, diverse and refined agricultural planting. In order to accurately control the seeding amount and meet the seeding specifications of different crops, they have to be forced to purchase multiple special seeders that are adapted to the seeding amount requirements of different crops. This will undoubtedly bring a heavy economic burden to agricultural production and management, not only greatly increasing the cost of equipment purchase, but also requiring more human, material and financial resources in the storage, maintenance and management of equipment, which seriously restricts the improvement of agricultural production efficiency and the promotion of sustainable development. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0005] To this end, one purpose of the present application is to provide an agricultural seeder that can accurately adjust the sowing amount according to the characteristics of different types of crops (such as wheat, corn, peanuts, etc.), which not only reduces the initial purchase cost of the equipment from the source, but also effectively saves a lot of expenses and resources in terms of equipment storage space, daily maintenance and repair parts.

[0006] To achieve the above-mentioned purpose, the first embodiment of the present application proposes an agricultural seeder, including a frame, a seeding box, a driving assembly, a plurality of burying mechanisms, a plurality of soil-opening mechanisms, a plurality of conveying mechanisms and a seeding mechanism, wherein the frame is provided with two support plates distributed side by side, the seeding box is arranged on the two support plates, and a plurality of partitions are arranged in the seeding box, and the plurality of partitions divide the seeding box into a plurality of seeding chambers; the driving assembly and the plurality of burying mechanisms are respectively located on both sides of the seeding box and are arranged on the frame; the plurality of soil-opening mechanisms and the plurality of burying mechanisms are arranged on the frame in a one-to-one correspondence, and the plurality of soil-opening mechanisms are respectively located between the seeding box and the burying mechanisms; the plurality of conveying mechanisms are respectively arranged on the bottom wall of the seeding box, and one end of the conveying mechanism is connected to the corresponding seeding chamber, and the other end of the conveying mechanism extends to the corresponding soil-opening mechanism; the seeding mechanism is rotatably arranged on the two support plates, and the seeding mechanism passes through the plurality of conveying mechanisms in sequence, wherein the seeding mechanism is connected to the driving assembly.

[0007] The agricultural seeder of the embodiment of the present application can accurately adjust the seeding amount according to the characteristics of different types of crops, which not only reduces the initial purchase cost of the equipment from the source, but also effectively saves a lot of expenses and resources in terms of equipment storage space, daily maintenance and repair parts.

[0008] In addition, the agricultural seeder proposed in the present application may also have the following additional technical features:

[0009] In one embodiment of the present application, the driving assembly includes a driving shaft, two wheels, a driving sprocket, a driven sprocket and a chain, wherein the driving shaft is rotatably arranged on the frame, and the two wheels are respectively arranged at both ends of the driving shaft; the driving sprocket is sleeved and fixed on the driving shaft; a U-shaped frame is provided on the bottom wall of the seed box, and the driven sprocket is rotatably arranged in the U-shaped frame, wherein a spline through hole is opened in the middle of the rotating shaft of the driven sprocket; and the chain is sleeved on the driving sprocket and the driven sprocket.

[0010] In one embodiment of the present application, the burying mechanism includes a connecting plate and a plurality of V-shaped burying plates, wherein the connecting plate is fixedly disposed on the bottom wall of the frame; and the plurality of V-shaped burying plates are equidistantly arranged side by side on the connecting plate.

[0011] In one embodiment of the present application, the earth-moving mechanism includes an earth-moving shovel and a V-shaped material guide plate, wherein the earth-moving shovel is fixedly arranged on the frame; the V-shaped material guide plate is fixedly arranged on the side wall of the earth-moving shovel, and the V-shaped opening of the V-shaped material guide plate is opposite to the V-shaped opening of the V-shaped burying plate.

[0012] In one embodiment of the present application, the conveying mechanism includes a feed hopper, a feed pipe and two baffle plates, wherein the feed hopper is fixedly arranged on the bottom wall of the seeding box, and the feed hopper is connected to the corresponding seeding chamber; one end of the feed pipe is connected to the outlet end of the feed hopper, and the other end of the feed pipe extends into the corresponding V-shaped guide plate; the two baffle plates are respectively arranged on the two side walls of the feed hopper.

[0013] In one embodiment of the present application, the sowing mechanism includes a plurality of sowing wheels, a support shaft, a driving handle and a convex strip, wherein the plurality of sowing wheels are rotatably arranged in the corresponding feed hoppers, and both ends of the sowing wheels are movable through the feed hoppers, and the plurality of sowing wheels are respectively fitted with the bottom ends of the corresponding two baffle plates, and each of the sowing wheels is sequentially provided with a plurality of groups of equidistant and parallel material taking troughs, wherein the volumes of the plurality of groups of parallelly distributed material taking troughs decrease in sequence; the support shaft is rotatably arranged on the two support plates, and the support shaft sequentially passes through the plurality of sowing wheels and the spline through holes; the convex strips are circumferentially arranged on the support shaft, and the convex strips are slidably connected to the spline grooves of the spline through holes.

[0014] In one embodiment of the present application, the agricultural seeder further comprises two limiting mechanisms, wherein the two limiting mechanisms are respectively connected to the two support plates and the support shaft, and each limiting mechanism comprises a magnet ring and a magnet disk, wherein the magnet ring is coaxial with the support shaft and is rotatably arranged on the corresponding support plate; the magnet disk is sleeved and fixed on the support shaft, and the magnet disk and the corresponding magnet ring are attracted to each other in opposite sexes.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 A three-dimensional agricultural seeding machine according to an embodiment of the present application Figure 1 ;

[0018] Figure 2 A three-dimensional agricultural seeding machine according to an embodiment of the present application Figure 2 ;

[0019] Figure 3 A cross-sectional view of an agricultural seeding machine according to an embodiment of the present application Figure 1 ;

[0020] Figure 4 A cross-sectional view of an agricultural seeding machine according to an embodiment of the present application Figure 2 ;

[0021] Figure 5 A cross-sectional view of an agricultural seeding machine according to an embodiment of the present application Figure 3 .

[0022] As shown in the figure: 10, frame; 11, support plate; 20, seeding box; 21, partition; 22, seeding chamber; 23, U-shaped frame; 30, drive assembly; 31, drive shaft; 32, wheel; 33, active sprocket; 34, driven sprocket; 35, chain; 301, spline through hole; 40, burying mechanism; 41, connecting plate; 42, V-shaped burying plate; 50, soil-opening mechanism; 51, soil-opening shovel; 52, V-shaped guide plate; 60, conveying mechanism; 61, feed hopper; 62, feed pipe; 63, material baffle plate; 70, seeding mechanism; 71, seeding wheel; 72, support shaft; 73, drive handle; 74, convex strip; 701, material trough; 80, limit mechanism; 81, magnet ring; 82, magnet disk. DETAILED DESCRIPTION

[0023] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0024] The agricultural seeder according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0025] like Figure 1-Figure 5 As shown, the agricultural seeder of the embodiment of the present application may include a frame 10, a seeding box 20, a drive assembly 30, a plurality of burying mechanisms 40, a plurality of soil-opening mechanisms 50, a plurality of conveying mechanisms 60 and a seeding mechanism 70.

[0026] The frame 10 is provided with two support plates 11 which are arranged side by side, the sowing box 20 is arranged on the two support plates 11 , and a plurality of partitions 21 are provided in the sowing box 20 , and the plurality of partitions 21 divide the sowing box 20 into a plurality of sowing chambers 22 .

[0027] The driving assembly 30 and the plurality of burying mechanisms 40 are respectively located on both sides of the seed box 20 and are arranged on the frame 10. The plurality of soil-opening mechanisms 50 and the plurality of burying mechanisms 40 are arranged on the frame 10 in a one-to-one correspondence, and the plurality of soil-opening mechanisms 50 are respectively located between the seed box 20 and the burying mechanisms 40. For example, the plurality of soil-opening mechanisms 50 can be 2, 3, 4, 5, 6 soil-opening mechanisms 50, etc., and the specific number of soil-opening mechanisms 50 can be selected according to actual conditions and is not limited here.

[0028] A plurality of conveying mechanisms 60 are respectively disposed on the bottom wall of the seeding box 20 , and one end of the conveying mechanism 60 is communicated with the corresponding seeding chamber 22 , and the other end of the conveying mechanism 60 extends to the corresponding soil-opening mechanism 50 .

[0029] It should be noted that the number of the multiple conveying mechanisms 60 used in this embodiment is equal to the number of the multiple earth-moving mechanisms 50 used and they are distributed in a one-to-one correspondence.

[0030] The sowing mechanism 70 is rotatably disposed on the two support plates 11 , and the sowing mechanism 70 sequentially passes through the plurality of conveying mechanisms 60 , wherein the sowing mechanism 70 is connected to the driving assembly 30 .

[0031] Specifically, when sowing is required, the relevant staff first needs to install the frame 10 on a vehicle (such as a tractor), and then adjust the sowing amount according to the characteristics of different types of crops. That is, the staff can adjust the sowing amount by pushing the sowing mechanism 70 to move. In addition, the sowing amount can be accurately adjusted according to the characteristics of different types of crops (such as wheat, corn, peanuts, etc.), which not only reduces the initial purchase cost of the equipment from the source, but also effectively saves a lot of expenses and resources in terms of equipment storage space, daily maintenance, and repair parts.

[0032] After adjusting the sowing amount to sow crops, the staff can pour the seeds into the multiple sowing chambers 22 in sequence. Then the staff can drive the vehicle to pull the frame 10 to move, and the moving frame 10 drags the soil-opening mechanism 50 and the burying mechanism 40 to move, and the moving soil-opening mechanism 50 reclaims the land into a planting groove.

[0033] At the same time, the movable frame 10 drives the sowing mechanism 70 to rotate through the driving assembly 30, and the rotating sowing mechanism 70 quantitatively transports the seeds in the sowing chamber 22 to the conveying mechanism 60, and then transports the seeds to the planting groove through the conveying mechanism 60. When the movable burying mechanism 40 passes through the seeds placed in the planting groove, it pushes the soil into the planting groove to bury the seeds.

[0034] In order to clearly explain the above embodiment, in one embodiment of the present application, as Figure 1-Figure 3 As shown, the driving assembly 30 may include a driving shaft 31 , two wheels 32 , a driving sprocket 33 , a driven sprocket 34 , and a chain 35 .

[0035] The driving shaft 31 is rotatably disposed on the frame 10 , two wheels 32 are respectively disposed at two ends of the driving shaft 31 , and a driving sprocket 33 is sleeved and fixed on the driving shaft 31 .

[0036] A U-shaped frame 23 is provided on the bottom wall of the seeding box 20 , and a driven sprocket 34 is rotatably arranged in the U-shaped frame 23 , wherein a spline through hole 301 is provided in the middle of the rotating shaft of the driven sprocket 34 .

[0037] The chain 35 is sleeved on the driving sprocket 33 and the driven sprocket 34 .

[0038] It is understandable that when the frame 10 is pulled and moved, the two wheels 32 roll on the ground, the rolling wheels 32 drive the driving sprocket 33 to rotate through the driving shaft 31, and the rotating driving sprocket 33 drives the driven sprocket 34 to rotate through the chain 35.

[0039] Further, in one embodiment of the present application, Figure 1-Figure 3 As shown, the burying mechanism 40 may include a connecting plate 41 and a plurality of V-shaped burying plates 42, wherein the connecting plate 41 is fixedly arranged on the bottom wall of the frame 10, and the plurality of V-shaped burying plates 42 are equidistantly arranged side by side on the connecting plate 41. It should be noted that the number of the plurality of V-shaped burying plates 42 used in this embodiment is equal to the number of the plurality of earth-opening mechanisms 50 used.

[0040] Further, in one embodiment of the present application, Figure 2 and Figure 3 As shown, the excavation mechanism 50 may include an excavation blade 51 and a V-shaped guide plate 52, wherein the excavation blade 51 is fixedly arranged on the frame 10, the V-shaped guide plate 52 is fixedly arranged on the side wall of the excavation blade 51, and the V-shaped opening of the V-shaped guide plate 52 corresponds to the V-shaped opening of the V-shaped burying plate 42. It should be noted that the V-shaped opening of the V-shaped burying plate 42 described in this embodiment is larger than the width of the groove opened by the excavation blade 51.

[0041] It can be understood that when the frame 10 is pulled and moved, the digging shovel 51 also moves synchronously. The moving digging shovel 51 digs a planting groove in the ground. When the seeds fall into the planting groove, the V-shaped burying plate 42 that moves synchronously with the digging shovel 51 pushes the soil on both sides of the groove into the groove and buries the seeds.

[0042] In one embodiment of the present application, Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the conveying mechanism 60 may include a feed hopper 61 , a feed pipe 62 and two baffle plates 63 , wherein the feed hopper 61 is fixedly disposed on the bottom wall of the seeding box 20 , and the feed hopper 61 is communicated with the corresponding seeding chamber 22 .

[0043] It should be noted that the distance between the bottom ends of the two material baffles described in this embodiment is slightly larger than the slot width of the material taking slot 701 .

[0044] One end of the feed pipe 62 is connected to the outlet end of the feed hopper 61 , and the other end of the feed pipe 62 extends into the corresponding V-shaped guide plate 52 . Two baffle plates 63 are respectively arranged on the two side walls of the feed hopper 61 .

[0045] Further, in one embodiment of the present application, Figure 1-Figure 5 As shown, the sowing mechanism 70 may include a plurality of sowing wheels 71 , a support shaft 72 , a driving handle 73 and convex strips 74 .

[0046] Among them, multiple seeding wheels 71 are rotatably arranged in the corresponding feed hopper 61, and both ends of the seeding wheels 71 are movable through the feed hopper 61, and multiple seeding wheels 71 are respectively fitted with the bottom ends of the corresponding two baffle plates 63, and each seeding wheel 71 is sequentially provided with multiple groups of equidistant and parallel feeding troughs 701, wherein the volumes of the multiple groups of parallel feeding troughs 701 are successively reduced. Each group of feeding troughs 701 may include multiple feeding troughs 701 distributed in a circular array. It should be particularly noted that the slot sizes of the multiple parallel feeding troughs 701 sequentially provided on the seeding wheel 71 are equal, and they are easily different.

[0047] The support shaft 72 is rotatably arranged on the two support plates 11, and the support shaft 72 sequentially penetrates the multiple seeding wheels 71 and the spline through hole 301, and the convex strips 74 are arranged around the support shaft 72, and the convex strips 74 are slidably connected to the spline grooves of the spline through hole 301. It should be noted that the support shaft 72 described in this embodiment is fixedly connected to the multiple seeding wheels 71, and the support shaft 72 is slidably connected to the spline through hole 301.

[0048] Specifically, when sowing is required, the staff can adjust the sowing amount according to the characteristics of different types of crops. That is, by holding the driving handle 73 and pushing the support shaft 72, multiple sowing wheels 71 are driven to move synchronously, so that the corresponding feeding troughs 701 on the sowing wheels 71 are moved into the feeding hopper 61. The sowing amount is adjusted by moving the feeding troughs 701 of different volumes on the sowing wheels 71 into the feeding hopper 61.

[0049] During the movement of the support shaft 72, the convex strip 74 also slides in the spline through hole 301. When the material trough 701 of corresponding volume moves into the feed hopper 61, the staff can drive the vehicle to pull the frame 10 to move. At this time, the two wheels 32 also roll on the ground. The rolling wheels 32 drive the active sprocket 33 to rotate through the drive shaft 31. The rotating active sprocket 33 drives the driven sprocket 34 to rotate through the chain 35. The rotating driven sprocket 34 drives the support shaft 72 to rotate through the convex strip 74. The rotating support shaft 72 drives multiple seeding wheels 71 to rotate synchronously. As the seeding wheels 71 rotate, the seeds that fall into the material trough 701 from the seeding box 20 enter the feed pipe 62 and are transported to the planting groove opened by the soil shovel 51 through the feed pipe 62.

[0050] Further, in one embodiment of the present application, Figure 1 , Figure 2 and Figure 5 As shown, the above-mentioned agricultural seeder may also include two limiting mechanisms 80, wherein the two limiting mechanisms 80 are respectively connected to the two support plates 11 and the support shaft 72, and each limiting mechanism 80 may include a magnet ring 81 and a magnet disk 82, wherein the magnet ring 81 is coaxial with the support shaft 72 and is rotatably set on the corresponding support plate 11.

[0051] The magnet disk 82 is sleeved and fixed on the support shaft 72 , and the magnet disk 82 and the corresponding magnet ring 81 are attracted to each other by opposite polarities.

[0052] It should be particularly noted that the two limiting mechanisms 80 described in this embodiment are for the scenario where two groups of material taking troughs 701 arranged side by side and having different volumes are provided on the seeding wheel 71 .

[0053] It is understandable that in order to prevent the support shaft 72 from moving along its axial direction during rotation and to avoid affecting the sowing effect, two limiting mechanisms 80 can be provided to solve the problem.

[0054] Specifically, if Figure 5 As shown, in the initial state, the magnet ring 81 and the magnet disk 82 in one of the limiting mechanisms 80 are adsorbed and connected, and the magnet ring 81 and the magnet disk 82 in the other limiting mechanism 80 are separated. At this time, when the support shaft 72 rotates, since the magnet ring 81 and the magnet disk 82 in one of the limiting mechanisms 80 are adsorbed and connected, the magnet ring 81 and the magnet disk 82 are adsorbed and limited, so that the support shaft 72 can be prevented from moving during rotation.

[0055] When the sowing amount needs to be adjusted, the staff pushes the support shaft 72 by holding the driving handle 73 to drive the sowing wheel 71 to move. When the corresponding material trough 701 in the sowing wheel 71 moves into the feed hopper 61, the magnet ring 81 and the magnet disk 82 in one of the limiting mechanisms 80 are separated, and the magnet ring 81 and the magnet disk 82 in the other limiting mechanism 80 are adsorbed together, thereby limiting the support shaft 72.

[0056] In summary, the agricultural seeder of the embodiment of the present application can accurately adjust the sowing amount according to the characteristics of different types of crops (such as wheat, corn, peanuts, etc.), which not only reduces the initial purchase cost of the equipment from the source, but also effectively saves a lot of expenses and resources in terms of equipment storage space, daily maintenance and repair parts.

[0057] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0059] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. An agricultural seeder, characterized in that: It includes a frame, a seeding box, a driving assembly, multiple burying mechanisms, multiple soil-opening mechanisms, multiple conveying mechanisms and a seeding mechanism, wherein: The frame is provided with two support plates distributed side by side, the sowing box is arranged on the two support plates, and a plurality of partitions are provided in the sowing box, and the plurality of partitions divide the sowing box into a plurality of sowing chambers; The driving assembly and the plurality of burying mechanisms are respectively located on both sides of the seed box and are arranged on the frame; A plurality of soil-opening mechanisms and a plurality of burying mechanisms are arranged on the frame in a one-to-one correspondence, and the plurality of soil-opening mechanisms are respectively located between the seeding box and the burying mechanism; The plurality of conveying mechanisms are respectively arranged on the bottom wall of the seeding box, and one end of the conveying mechanism is communicated with the corresponding seeding chamber, and the other end of the conveying mechanism extends to the corresponding soil-opening mechanism; The sowing mechanism is rotatably arranged on the two support plates, and the sowing mechanism sequentially passes through a plurality of the conveying mechanisms, wherein the sowing mechanism is connected to the driving assembly.

2. The agricultural seeder according to claim 1, characterized in that: The drive assembly includes a drive shaft, two wheels, a driving sprocket, a driven sprocket and a chain, wherein: The driving shaft is rotatably arranged on the frame, and the two wheels are respectively arranged at two ends of the driving shaft; The driving sprocket is sleeved and fixed on the driving shaft; A U-shaped frame is provided on the bottom wall of the seeding box, and the driven sprocket is rotatably arranged in the U-shaped frame, wherein a spline through hole is opened in the middle of the rotating shaft of the driven sprocket; The chain is sleeved on the driving sprocket and the driven sprocket.

3. The agricultural seeder according to claim 1, characterized in that: The burying mechanism comprises a connecting plate and a plurality of V-shaped burying plates, wherein: The connecting plate is fixedly arranged on the bottom wall of the frame; A plurality of V-shaped buried plates are arranged side by side and at equal intervals on the connecting plate.

4. The agricultural seeder according to claim 3, characterized in that: The soil-opening mechanism includes a soil-opening shovel and a V-shaped guide plate, wherein: The earth-moving shovel is fixedly arranged on the frame; The V-shaped material guide plate is fixedly arranged on the side wall of the earth-opening shovel, and the V-shaped opening of the V-shaped material guide plate is opposite to the V-shaped opening of the V-shaped burying plate.

5. The agricultural seeder according to claim 2, characterized in that: The conveying mechanism includes a conveying hopper, a conveying pipe and two baffle plates, wherein: The feed hopper is fixedly arranged on the bottom wall of the sowing box, and the feed hopper is communicated with the corresponding sowing chamber; One end of the material conveying pipe is connected to the outlet end of the material conveying hopper, and the other end of the material conveying pipe extends into the corresponding V-shaped material guide plate; The two material baffles are respectively arranged on the two side walls of the feeding hopper.

6. The agricultural seeder according to claim 5, characterized in that: The sowing mechanism includes a plurality of sowing wheels, a support shaft, a driving handle and convex strips, wherein: The plurality of seeding wheels are rotatably arranged in the corresponding feeding hoppers, and both ends of the seeding wheels are movable through the feeding hoppers. The plurality of seeding wheels are respectively fitted with the bottom ends of the two corresponding baffle plates, and each seeding wheel is provided with a plurality of groups of equally spaced and parallel feeding troughs in sequence, wherein the volumes of the plurality of groups of parallelly distributed feeding troughs decrease in sequence; The support shaft is rotatably arranged on the two support plates, and the support shaft sequentially passes through the plurality of seeding wheels and the spline through holes; The convex strips are circumferentially distributed on the supporting shaft, and the convex strips are slidably connected to the spline grooves of the spline through holes.

7. The agricultural seeder according to claim 6, characterized in that: It also includes two limiting mechanisms, wherein the two limiting mechanisms are respectively connected to the two support plates and the support shaft, and each limiting mechanism includes a magnet ring and a magnet disk, wherein: The magnet ring is coaxial with the support shaft and is rotatably arranged on the corresponding support plate; The magnet disk is sleeved and fixed on the supporting shaft, and the magnet disk and the corresponding magnet ring are attracted to each other in opposite polarities.

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