A regulated seeding device for wheat breeding

Abstract

This invention discloses an adjustable sowing device for wheat breeding, relating to the field of sowing equipment. It includes: a mounting frame and a mounting plate mounted on the outside of the mounting frame. The bottom of the mounting plate has multiple furrowing teeth, and a sowing chamber is formed inside the furrowing teeth. A storage cylinder is installed inside the sowing chamber. Moving wheels are rotatably mounted on both sides of the mounting frame. It also includes: a sowing mechanism for intermittently and equally sowing wheat seeds. The sowing mechanism is installed inside the sowing chamber and includes a sowing shell installed inside the sowing chamber. This invention, through the sowing mechanism, can store equal amounts of wheat seeds in batches, allowing the wheat seeds to be directly sown into the soil, achieving the effect of intermittent, equal-quantity sowing, improving sowing efficiency. It can also directly sow wheat seeds into the furrowed soil, preventing seed scattering, thereby achieving precise sowing.

Description

Technical Field

[0001] This invention relates to the field of sowing equipment, specifically to an adjustable sowing device for wheat breeding. Background Technology

[0002] Wheat breeding is a specialized agricultural technology that relies on genetic improvement and experimental screening techniques to cultivate new wheat varieties that are high-yielding, high-quality, disease-resistant, stress-resistant, and adapted to mechanized production. Field sowing is an indispensable core procedure in breeding experiments. Traits such as wheat plant height, lodging resistance, disease resistance, yield, maturity date, and environmental adaptability are all field phenotypic characteristics, which cannot be identified by seeds alone. Only through the complete growth cycle from sowing and emergence to field growth and maturity can the comprehensive genetic performance of each breeding material be objectively and accurately evaluated.

[0003] Sowing operations directly determine the effectiveness of wheat breeding trials and the reliability of field trait identification results. Breeding trials require sowing equipment capable of stably sowing seeds into the soil layer, ensuring consistent sowing depth, uniform seed spacing, and equal sowing amount in each row and plot, eliminating the interference of population density differences on experimental data. Currently, hill-sowing equipment is commonly used in wheat breeding operations. The industry requires that an equal amount of seeds be placed in the same hill to achieve standardized population construction. However, the direct-drop sowing structure is easily disturbed by the field environment, resulting in frequent seed scattering and missed sowing, leading to significant deviations in the number of seeds per hill, uneven seeding amounts in each row, and large differences in seedling density in the field, seriously reducing the accuracy of comparative identification of breeding materials. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable seeding device for wheat breeding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An adjustable sowing device for wheat breeding includes: a mounting frame and a mounting plate fixedly mounted on the outside of the mounting frame; a plurality of equally spaced furrowing teeth are fixedly mounted on the bottom of the mounting plate; a sowing chamber is formed on the inner side of the furrowing teeth; a storage cylinder is fixedly mounted on the inner side of the sowing chamber; and casters are rotatably mounted on both sides of the mounting frame; the device also includes: a sowing mechanism for intermittently and equally sowing wheat seeds; the sowing mechanism is mounted on the inner side of the sowing chamber; the sowing mechanism includes a sowing shell fixedly mounted on the inner side of the sowing chamber. The seeding hull can discharge wheat seeds into the soil in equal amounts; the adjusting mechanism is used to adjust the amount of wheat seeds sown, and the adjusting mechanism is installed inside the seeding hull. The adjusting mechanism includes a mounting rod that is rotatably installed inside the seeding hull, and the mounting rod can adjust the temporary storage amount of wheat seeds; the feeding mechanism is used to loosen the wheat seeds in the storage cylinder, and the feeding mechanism is installed inside the storage cylinder. The feeding mechanism includes four push rods that are centrally symmetrically arranged inside the storage cylinder, and the push rods can shake the wheat seeds in the storage cylinder.

[0006] Preferably, the sowing mechanism further includes a rotating block rotatably mounted inside the sowing shell. Three centrally symmetrically distributed feeding chambers are provided on the outer side of the rotating block. The top of the sowing shell is fixedly connected to the bottom of the storage cylinder. Two symmetrically distributed annular frames are provided inside the feeding chambers. A turntable is rotatably mounted inside the annular frames. Multiple centrally symmetrically distributed scrapers are fixedly mounted on corresponding sides of the two turntables, with the outer sides of the scrapers contacting the inner side of the feeding chambers. A sleeve is fixedly mounted on the side of the turntable away from the scrapers. A prismatic rod is slidably mounted on the inner side of the sleeve. One end of the prismatic rod is rotatably mounted inside the sowing shell. A gear is fixedly mounted on the end of the prismatic rod away from the sleeve. Two symmetrically distributed fixing rings are fixedly installed. An arc-shaped rack that meshes with the gear is fixedly installed on the inner side of the fixing ring. A discharge frame is fixedly installed at the bottom of the seeding shell, and the grooved teeth have openings corresponding to the discharge frame. A circular cavity located outside the prismatic rod is opened on the inner side of the rotating block, and a coil spring is fixedly installed between the outer side of the prismatic rod and the inner side of the circular cavity. Rotating cylinders extending to the outer side of the seeding shell are fixedly installed at both ends of the rotating block. A top shell is fixedly installed on the top of the grooved teeth, and a rotating rod is rotatably installed between multiple top shells. A motor is fixedly installed on the top of the mounting plate through a support plate. The output end of the motor is fixedly connected to one end of the rotating rod. A first synchronous belt is rotatably installed between the rotating cylinder and the rotating rod.

[0007] Preferably, the adjusting mechanism further includes two fixed plates symmetrically fixedly installed inside the feed chamber. A slide is slidably installed on the inner side of the fixed plate, and the sleeve slidably passes through the fixed plate. One end of the slide is fixedly connected to the outer side of the annular frame. Two symmetrically distributed positioning plates are fixedly installed between the top of the inner wall of the top shell and the inner side of the grooved teeth. A positioning frame is fixedly installed between the two positioning plates. The mounting rod is rotatably installed on the inner side of the positioning frame. Two symmetrically distributed moving blocks are slidably installed on the outer side of the positioning frame. Two symmetrically distributed first external threads are opened on the outer side of the mounting rod, and the two moving blocks are respectively threaded onto the outer side of the two first external threads. A tripod is rotatably installed on the outer side of the moving block. A cavity is opened on the inner side of the moving block for the tripod and the positioning frame to be installed. One end of the two slides located in the same feed chamber is fixedly installed on one end of the two tripods. An adjusting rod is rotatably installed between multiple top shells. Both ends of the mounting rod are connected to the adjusting rod through a second synchronous belt.

[0008] Preferably, the feeding mechanism further includes two driven rods symmetrically rotated and mounted inside the top shell. A third synchronous belt is rotatably mounted between the driven rods and the rotating rod. The top end of the push rod slides through the top of the storage cylinder. A push plate is fixedly mounted between the top ends of the four push rods. A plurality of centrally symmetrically distributed springs are fixedly mounted between the bottom of the push plate and the top of the storage cylinder. A cam that contacts the top of the push plate is fixedly mounted on the outer side of the driven rod. A plurality of vertically equidistant push blocks are fixedly mounted on the outer side of the push rod. The top and bottom of each push block are frustum structures.

[0009] Preferably, two symmetrically distributed mounting brackets are fixedly installed on the side of the mounting bracket away from the mounting plate.

[0010] Preferably, a baffle is fixedly installed at the bottom of the mounting plate.

[0011] Preferably, a support cylinder is fixedly installed between two adjacent top shells, and the support cylinder is sleeved on the outside of the adjusting rod and the rotating rod.

[0012] Preferably, an indicator block is slidably installed on the inner side of the support cylinder, a second external thread is provided on the outer side of the adjusting rod, and the indicator block is threaded onto the second external thread of the adjusting rod. An optical axis for limiting the sliding of the indicator block is fixedly installed on the inner side of the support cylinder, and a scale bar that cooperates with the indicator block is provided on the outer side of the support cylinder.

[0013] Preferably, an injection pipe is fixedly installed on the outside of the storage cylinder, and the top end of the injection pipe extends to the outside of the top shell.

[0014] Preferably, a guide cylinder is sleeved on the outer side of the push rod, and the guide cylinder is fixedly installed on the top of the inner wall of the storage cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through a sowing mechanism, can store equal amounts of wheat seeds in batches, allowing the wheat seeds to be directly sown into the soil, achieving the effect of intermittent equal-quantity sowing, improving sowing efficiency, and also allowing the wheat seeds to be directly sown into the furrowed soil, avoiding seed scattering, thereby achieving the effect of precise sowing.

[0016] 2. The present invention, through the adjustment mechanism, can adjust the mounting rod to bring the two annular frames closer or further apart, thereby adjusting the position of the turntable and realizing the adjustment of the storage volume of the feeding chamber. This facilitates the adjustment of the temporary storage amount of wheat seeds, thereby making it easier to sow different amounts of wheat seeds according to needs and improving the convenience of wheat seed sowing.

[0017] 3. The present invention uses a feeding mechanism where a pusher plate enables a push rod to drive multiple push blocks to move up and down reciprocally, causing the push blocks to shake the wheat seeds in the storage cylinder, preventing the wheat seeds from accumulating and keeping them in a loose state, making it easier for the wheat seeds to enter the feeding chamber, thereby improving the convenience of wheat seed feeding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the grooved teeth and mounting plate assembly structure in this invention; Figure 3 This is a schematic diagram of a partial cross-sectional structure of the storage cylinder and the seeding shell in this invention; Figure 4 for Figure 3 Enlarged structural diagram of area A in the middle; Figure 5 This is a partial cross-sectional view of the push rod and push block in this invention; Figure 6 This is a partial cross-sectional view of the scraper and positioning frame in this invention. Figure 7 This is a partial cross-sectional view of the turntable and moving block in this invention. Figure 8 This is a schematic diagram of a partial cross-sectional structure of the transfer block and the seeding shell in this invention.

[0019] In the diagram: 1. Mounting frame; 2. Mounting plate; 3. Grooving teeth; 4. Storage cylinder; 5. Moving wheel; 6. Seeding hull; 7. Mounting rod; 8. Push rod; 9. Rotating block; 10. Turntable; 11. Scraper; 12. Sleeve; 13. Prismatic rod; 14. Gear; 15. Fixing ring; 16. Coil spring; 17. Discharge frame; 18. Arc-shaped rack; 19. Rotating cylinder; 20. Top shell; 21. Rotating rod; 22. Motor; 23. First synchronous belt 24. Fixed plate; 25. Slide carriage; 26. Positioning plate; 27. Circular frame; 28. Positioning frame; 29. ​​Moving block; 30. Triangular frame; 31. Adjusting rod; 32. Second synchronous belt; 33. Driven rod; 34. Third synchronous belt; 35. Push plate; 36. Spring; 37. Cam; 38. Push block; 39. Mounting bearing; 40. Baffle; 41. Support cylinder; 42. Indicator block; 43. Injection pipe; 44. Guide cylinder. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1-8 The diagram shows an adjustable sowing device for wheat breeding, comprising a mounting frame 1 and a mounting plate 2 fixedly mounted on the outside of the mounting frame 1. Multiple equally spaced furrowing teeth 3 are fixedly mounted on the bottom of the mounting plate 2. A sowing chamber is formed on the inner side of each furrowing tooth 3, and a storage cylinder 4 is fixedly mounted on the inner side of the sowing chamber. Two movable wheels 5 are rotatably mounted on both sides of the mounting frame 1. The mounting frame 1 is connected to a mobile vehicle, causing the mobile vehicle to pull the two movable wheels 5 on the mounting frame 1 to move on the ground. The mounting frame 1, through the mounting plate 2, drives the multiple furrowing teeth 3 to turn over the soil, and then the wheat seeds in the storage cylinder 4 are sown in the furrowing teeth 3 through the sowing chamber, thus achieving the sowing of wheat seeds. The sowing mechanism includes a sowing shell 6 fixedly installed inside the sowing chamber, which can discharge wheat seeds into the soil in equal amounts. The sowing mechanism also includes a rotating block 9 rotatably installed inside the sowing shell 6. Three feed chambers are centrally symmetrically distributed on the outer side of the rotating block 9. The top of the sowing shell 6 is fixedly connected to the bottom of the storage cylinder 4. Two symmetrically distributed annular frames 27 are arranged inside the feed chambers. A turntable 10 is rotatably installed inside the annular frames 27. Multiple centrally symmetrical scraper blades 11 are fixedly installed on corresponding sides of the two turntables 10, with the outer sides of the scraper blades 11 contacting the inner side of the feed chamber. A sleeve 12 is fixedly installed on the side of the turntable 10 away from the scraper blades 11. A prismatic rod 13 is slidably installed on the inner side of the sleeve 12. One end of the rotating block 9 is rotatably mounted on the inner side of the seeding shell 6. A gear 14 is fixedly mounted on the end of the prismatic rod 13 away from the sleeve 12. Two symmetrically distributed fixing rings 15 are fixedly mounted on the inner side of the seeding shell 6. An arc-shaped rack 18 that meshes with the gear 14 is fixedly mounted on the inner side of the fixing ring 15. A discharge frame 17 is fixedly mounted on the bottom of the seeding shell 6, and the grooved teeth 3 have openings corresponding to the discharge frame 17. A circular cavity located outside the prismatic rod 13 is opened on the inner side of the rotating block 9, and a coil spring 16 is fixedly mounted between the outer side of the prismatic rod 13 and the inner side of the circular cavity. Wheat seeds in the storage cylinder 4 can enter the feeding chamber directly below it. When the rotating block 9 rotates, it can drive the gear 14 on the prismatic rod 13 to roll along the arc-shaped rack 18 of the fixing ring 15. The fixed ring 15 drives the prismatic rod 13 to rotate via the arc-shaped rack 18 and gear 14. The prismatic rod 13 drives the turntable 10 to rotate along the inner side of the annular frame 27 via the sleeve 12. The turntable 10 drives multiple scrapers 11 to rotate along the inner side of the feeding chamber. The prismatic rod 13 can compress the coil spring 16. When the prismatic rod 13 is aligned with the discharge frame 17 and stops rotating, the gear 14 on the prismatic rod 13 moves away from the arc-shaped rack 18. The rebound force of the coil spring 16 drives the prismatic rod 13 to rotate back. The turntable 10 can then drive the scrapers 11 to rotate again, so that the scrapers 11 push the wheat seeds in the feeding chamber into the discharge frame 17. The wheat seeds can then fall directly into the pit opened by the furrowing teeth 3. Both ends of the rotating block 9 are fixedly installed with extensions to the seed hull. The outer rotating drum 19 has a top shell 20 fixedly installed on the top of the grooved teeth 3. A rotating rod 21 is rotatably mounted between multiple top shells 20. A motor 22 is fixedly mounted on the top of the mounting plate 2 via a support plate. The output end of the motor 22 is fixedly connected to one end of the rotating rod 21. A first synchronous belt 23 is rotatably mounted between the rotating drum 19 and the rotating rod 21. The motor 22 can drive the rotating rod 21 to rotate intermittently, causing the rotating rod 21 to drive the rotating drum 19 to rotate via the first synchronous belt 23. The rotating drum 19, in turn, can drive the rotating block 9 to move synchronously, aligning the three feeding chambers sequentially with the bottom of the storage drum 4. This facilitates the storage of equal amounts of wheat seeds. When the feeding chamber is aligned with the discharge frame 17, the wheat seeds in the feeding chamber can be directly added to the soil, achieving the effect of intermittent, equal-quantity sowing.It can also directly sow wheat seeds into the soil, preventing seed scattering and improving sowing accuracy. Two symmetrically distributed mounting bearings 39 are fixedly installed on the side of the mounting frame 1 away from the mounting plate 2. The mounting frame 1 can connect with the mobile vehicle body through the mounting bearings 39, improving the convenience of assembly between the mounting frame 1 and the mobile vehicle body. A baffle 40 is fixedly installed at the bottom of the mounting plate 2 to prevent soil fragments pushed up by the trenching teeth 3.

[0022] Example 2: Please refer to Figures 3-8This embodiment further illustrates Example 1. The volume adjustment mechanism shown in the figure includes a mounting rod 7 rotatably mounted inside the seeding shell 6. The mounting rod 7 can adjust the temporary storage amount of wheat seeds. The volume adjustment mechanism also includes two fixed plates 24 symmetrically fixedly mounted inside the feeding chamber. A slide 25 is slidably mounted on the inner side of the fixed plate 24, and the sleeve 12 slides through the fixed plate 24. One end of the slide 25 is fixedly connected to the outer side of the annular frame 27. Two symmetrically distributed positioning plates 26 are fixedly mounted between the top of the inner wall of the top shell 20 and the inner side of the grooved teeth 3. A positioning frame 28 is fixedly mounted between the two positioning plates 26. The mounting rod 7 is rotatably mounted on the positioning frame 28. Inside the 8, two symmetrically distributed moving blocks 29 are slidably mounted on the outer side of the positioning frame 28. Two symmetrically distributed first external threads are opened on the outer side of the mounting rod 7, and the two moving blocks 29 are respectively threaded onto the outer side of the two first external threads. A tripod 30 is rotatably mounted on the outer side of the moving blocks 29. A cavity for mounting the tripod 30 and the positioning frame 28 is opened on the inner side of the rotating block 9. One end of each of the two slides 25 located in the same feed chamber is fixedly mounted on one end of each of the two tripods 30. When the mounting rod 7 rotates, it can drive the two moving blocks 29 to move away from or towards each other through the two first external threads on its outer side. The moving blocks 29 drive the slides 29 to move away from or towards each other. 5. Synchronous movement allows the slide 25 to pull the annular frame 27 along the inner side of the feeding chamber. Two turntables 10 located within the same feeding chamber can move closer or further apart, facilitating adjustment of the feeding chamber's storage volume and enabling adjustment of the temporary storage amount of wheat seeds. Adjusting rods 31 are rotatably mounted between multiple top shells 20. Both ends of the mounting rods 7 are connected to the adjusting rods 31 via a second synchronous belt 32. When the adjusting rods 31 rotate, they can drive the mounting rods 7 to rotate synchronously via the second synchronous belt 32, achieving synchronous adjustment of multiple mounting rods 7. A support cylinder 41 is fixedly installed between two adjacent top shells 20, and the support cylinder 41 is sleeved between the adjusting rod 31 and the rotating rod 21. On the outside, the adjusting rod 31 and the rotating rod 21 are protected. An indicator block 42 is slidably installed on the inner side of the support cylinder 41. The outer side of the adjusting rod 31 is provided with a second external thread, and the indicator block 42 is threaded onto the second external thread of the adjusting rod 31. An optical shaft for limiting the sliding of the indicator block 42 is fixedly installed on the inner side of the support cylinder 41. A scale bar that cooperates with the indicator block 42 is provided on the outer side of the support cylinder 41. When the adjusting rod 31 rotates, it can drive the indicator block 42 to move along the inner side of the support cylinder 41 and the outer side of the optical shaft through the second external thread. By using the cooperation between the indicator block 42 and the scale bar, it is easy to determine the moving distance of the turntable 10, and thus determine the storage volume of the feeding chamber.

[0023] Example 3: Please refer to Figures 1-5This embodiment further illustrates other embodiments. The feeding mechanism shown in the figure includes four push rods 8 arranged symmetrically in the storage cylinder 4. The push rods 8 can shake the wheat seeds in the storage cylinder 4. The feeding mechanism also includes two driven rods 33 symmetrically rotatably mounted inside the top shell 20. A third synchronous belt 34 is rotatably mounted between the driven rods 33 and the rotating rod 21. When the rotating rod 21 rotates, it can drive the driven rods 33 to rotate synchronously through the third synchronous belt 34. The top of the push rod 8 slides through the top of the storage cylinder 4, and a push plate 35 is fixedly mounted between the tops of the four push rods 8. A plurality of centrally symmetrically distributed springs 36 are fixedly mounted between the bottom of the push plate 35 and the top of the storage cylinder 4. A cam 37 is fixedly mounted on the outside of the driven rod 33, which contacts the top of the push plate 35. A plurality of springs 36 are fixedly mounted on the outside of the push rod 8. Push blocks 38 are arranged vertically and equidistantly. The top and bottom of each push block 38 are frustum structures. The driven rod 33 can push the push plate 35 to move through the cam 37 and compress the spring 36. The cam 37 and the spring 36 drive the push plate 35 to move up and down. The push plate 35 drives multiple push blocks 38 to move synchronously through the push rod 8. This causes the push blocks 38 to shake the wheat seeds in the storage cylinder 4, preventing the wheat seeds from accumulating and keeping them in a loose state so that they can easily enter the feeding chamber. A feeding pipe 43 is fixedly installed on the outside of the storage cylinder 4. The top end of the feeding pipe 43 extends to the outside of the top shell 20, so that the wheat seeds can be injected into the storage cylinder 4 through the feeding pipe 43. A guide cylinder 44 is sleeved on the outside of the push rod 8 and is fixedly installed on the top of the inner wall of the storage cylinder 4 to provide guidance and support for the movement of the push rod 8.

[0024] Working principle: First, the operator connects the mounting frame 1 to the mobile vehicle body and loads wheat seeds into the storage cylinder 4 through the feeding pipe 43. At this time, the operator rotates the adjusting rod 31, which drives the mounting rods 7 to rotate synchronously via the second synchronous belt 32, allowing multiple mounting rods 7 to adjust synchronously. The mounting rods 7 drive two moving blocks 29 to move away from or towards each other through their two outer first external threads. The moving blocks 29 drive the slide 25 to move synchronously, causing the slide 25 to pull the annular frame 27 along the inner side of the feeding chamber. The two turntables 10 located in the same feeding chamber can move closer or further apart, adjusting the storage volume of the feeding chamber to facilitate adjustment of the temporary storage amount of wheat seeds according to needs. Then, the mobile vehicle pulls the two moving wheels 5 on the mounting frame 1 to move on the ground. The mounting frame 1 drives multiple trenching teeth 3 to turn the soil on the ground through the mounting plate 2. At the same time, the motor 22 drives the rotating rod 21 to rotate intermittently. The rotating rod 21 drives the rotating drum 19 to rotate through the first synchronous belt 23. The rotating drum 19 drives the rotating block 9 to move synchronously, so that the three feeding chambers are aligned with the bottom of the storage cylinder 4 in sequence. The wheat seeds in the storage cylinder 4 enter the feeding chamber that is aligned with it. At the same time, the rotating rod 21 drives the driven rod 33 to rotate synchronously through the third synchronous belt 34. The driven rod 33 pushes the push plate 35 to move through the cam 37, so that the push plate 35 compresses the spring 36. The cam 37 can then cooperate with the spring 36 to drive the push plate 35 to move. The plate 35 reciprocates up and down. The push plate 35, via the push rod 8, drives multiple push blocks 38 to move synchronously, causing the push blocks 38 to shake the wheat seeds in the storage cylinder 4, preventing accumulation and maintaining a loose state for easy entry into the feeding chamber. Then, with the intermittent rotation of the rotating block 9, the rotating block 9 drives the gear 14 on the prismatic rod 13 to roll along the arc-shaped rack 18 of the fixed ring 15. This causes the fixed ring 15 to drive the prismatic rod 13 to rotate via the arc-shaped rack 18 and the gear 14. The prismatic rod 13, via the sleeve 12, drives the turntable 10 to rotate along the inner side of the annular frame 27. This causes the turntable 10 to drive multiple scrapers 11 to rotate along the inner side of the feeding chamber. Furthermore, the prismatic rod 13... When the coil spring 16 is compressed, the gear 14 on the prismatic rod 13 moves away from the arc-shaped rack 18 when it is aligned with the discharge frame 17 and stops rotating. The spring spring 16 then drives the prismatic rod 13 to rotate, and the turntable 10 drives the scraper 11 to rotate again. The scraper 11 pushes the wheat seeds in the feeding chamber into the discharge frame 17, and the wheat seeds fall directly into the pit opened by the furrowing teeth 3. When the feeding chamber is aligned with the discharge frame 17, the wheat seeds in the feeding chamber can be directly put into the soil. Thus, with the intermittent rotation of the rotating block 9, the wheat seeds can be intermittently and in equal quantities sown, and the wheat seeds can be directly put into the soil, avoiding seed scattering and improving the accuracy of sowing.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable-rate seeding device for wheat breeding, characterized in that, include: The mounting frame (1) and the mounting plate (2) installed on the outside of the mounting frame (1) are provided. The bottom of the mounting plate (2) is provided with a plurality of groove teeth (3). The inner side of the groove teeth (3) is provided with a sowing chamber. The inner side of the sowing chamber is provided with a storage cylinder (4). Both sides of the mounting frame (1) are rotatably mounted with casters (5). Also includes: A sowing mechanism for intermittently and equally sowing wheat seeds, the sowing mechanism being installed inside the sowing chamber, the sowing mechanism including a sowing shell (6) installed inside the sowing chamber, the sowing shell (6) being able to discharge wheat seeds equally into the soil; A quantity adjustment mechanism is used to adjust the amount of wheat seeds sown. The quantity adjustment mechanism is installed inside the seeding shell (6). The quantity adjustment mechanism includes a mounting rod (7) that is rotatably installed inside the seeding shell (6). The mounting rod (7) can adjust the temporary storage amount of wheat seeds. A feeding mechanism is used to loosen the wheat seeds in the storage cylinder (4). The feeding mechanism is installed on the inner side of the storage cylinder (4). The feeding mechanism includes four push rods (8) arranged symmetrically in the storage cylinder (4). The push rods (8) can shake the wheat seeds in the storage cylinder (4). The sowing mechanism also includes a rotating block (9) rotatably mounted inside the sowing shell (6). Three feed chambers are centrally symmetrically distributed on the outer side of the rotating block (9). The top of the sowing shell (6) is fixedly connected to the bottom of the storage cylinder (4). Two symmetrically distributed annular frames (27) are provided inside the feed chambers. A turntable (10) is rotatably mounted inside the annular frame (27). Multiple scrapers (11) are mounted on corresponding sides of the two turntables (10). A sleeve (12) is fixedly mounted on the side of the turntable (10) away from the scrapers (11). A prismatic rod (13) is slidably mounted inside the sleeve (12). One end of the prismatic rod (13) is rotatably mounted inside the sowing shell (6). A gear (14) is fixedly mounted on the end of the prismatic rod (13) away from the sleeve (12). Two fixing rings (15) are mounted inside the sowing shell (6). The inner side of the fixed ring (15) is equipped with an arc-shaped rack (18) that meshes with the gear (14). The bottom of the seeding shell (6) is equipped with a discharge frame (17), and the grooved tooth (3) has an opening corresponding to the discharge frame (17). The inner side of the rotating block (9) has a circular cavity located outside the prism rod (13), and a coil spring (16) is installed between the outer side of the prism rod (13) and the inner side of the circular cavity. Both ends of the rotating block (9) are fixedly equipped with rotating cylinders (19). The top of the grooved tooth (3) is equipped with a top shell (20), and a rotating rod (21) is rotatably installed between multiple top shells (20). The top of the mounting plate (2) is equipped with a motor (22) through a support plate. The output end of the motor (22) is fixedly connected to one end of the rotating rod (21). A first synchronous belt (23) is rotatably installed between the rotating cylinder (19) and the rotating rod (21).

2. The adjustable seeding device for wheat breeding according to claim 1, characterized in that: The adjustment mechanism also includes two fixed plates (24) symmetrically installed inside the feed chamber. A slide (25) is slidably installed on the inner side of the fixed plate (24), and the sleeve (12) slides through the fixed plate (24). One end of the slide (25) is fixedly connected to the outer side of the annular frame (27). Two positioning plates (26) are installed between the top of the inner wall of the top shell (20) and the inner side of the grooved teeth (3). A positioning frame (28) is installed between the two positioning plates (26). The mounting rod (7) is rotatably installed on the inner side of the positioning frame (28). Two moving blocks (29) are slidably installed on the outer side of the positioning frame (28). The mounting rod (7) has two symmetrically distributed first external threads on its outer side, and the two moving blocks (29) are respectively threaded onto the outer side of the two first external threads. A tripod (30) is rotatably mounted on the outer side of the moving block (29). A cavity is provided on the inner side of the rotating block (9) for mounting the tripod (30) and the positioning frame (28). One end of the two slides (25) located in the same feeding cavity is respectively mounted on one end of the two tripods (30). An adjusting rod (31) is rotatably mounted between the multiple top shells (20). Both ends of the mounting rod (7) are connected to the adjusting rod (31) through the second synchronous belt (32).

3. The adjustable seeding device for wheat breeding according to claim 2, characterized in that: The feeding mechanism also includes two driven rods (33) rotatably mounted inside the top shell (20). A third synchronous belt (34) is rotatably mounted between the driven rods (33) and the rotating rod (21). The top end of the push rod (8) slides through the top of the storage cylinder (4). A push plate (35) is installed between the top ends of the four push rods (8). Multiple springs (36) are installed between the bottom of the push plate (35) and the top of the storage cylinder (4). A cam (37) is fixedly mounted on the outside of the driven rod (33) and contacts the top of the push plate (35). Multiple push blocks (38) are fixedly mounted on the outside of the push rod (8). The top and bottom of the push blocks (38) are both frustum structures.

4. The adjustable seeding device for wheat breeding according to claim 1, characterized in that: Two mounting brackets (39) are mounted on the outer side of the mounting bracket (1).

5. The adjustable seeding device for wheat breeding according to claim 1, characterized in that: A baffle (40) is installed at the bottom of the mounting plate (2).

6. The adjustable seeding device for wheat breeding according to claim 2, characterized in that: A support cylinder (41) is installed between two adjacent top shells (20), and the support cylinder (41) is sleeved on the outside of the adjusting rod (31) and the rotating rod (21).

7. The adjustable seeding device for wheat breeding according to claim 6, characterized in that: An indicator block (42) is slidably installed on the inner side of the support cylinder (41). A second external thread is provided on the outer side of the adjusting rod (31), and the indicator block (42) is threaded onto the second external thread of the adjusting rod (31). An optical axis for limiting the sliding of the indicator block (42) is installed on the inner side of the support cylinder (41), and a scale bar that cooperates with the indicator block (42) is provided on the outer side of the support cylinder (41).

8. The adjustable seeding device for wheat breeding according to claim 3, characterized in that: An injection pipe (43) is installed on the outside of the storage cylinder (4), and the top end of the injection pipe (43) extends to the outside of the top shell (20).

9. The adjustable seeding device for wheat breeding according to claim 3, characterized in that: The push rod (8) is fitted with a guide cylinder (44) on its outer side, and the guide cylinder (44) is installed on the top of the inner wall of the storage cylinder (4).

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