Farmland cultivated land protection seeding equipment

Abstract

Farmland cultivated land protection sowing equipment comprises a main bearing shell, an outer protection mechanism is arranged on the side face of the main bearing shell, a sowing mechanism is arranged in the outer protection mechanism, the outer protection mechanism provides protection for the sowing mechanism, the sowing mechanism comprises a seed taking device and a sowing device, the seed taking device is located in the main bearing shell, the seed taking device selects seeds, and the sowing device is located in the main bearing shell. A seeding device is arranged on the side face of the seed taking device, the seeding device recycles broken seeds and poor seeds selected by the seed taking device and seeds complete seeds selected by the seed taking device, and an auxiliary seed screening mechanism is arranged on the side face of the outer protection mechanism and provides seeds for seed selection operation of the seed taking device. The outer protection mechanism comprises an outer protection shell and an auxiliary bearing shell, an outer shell connecting groove is formed in one side of the main bearing shell, and the outer shell connecting groove is matched with the outer protection shell.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural seeding, in particular to a farmland ploughing protection seeding device. BACKGROUND

[0002] In farmland ploughing protection, it is necessary to rotate seeding to maintain, restore and improve soil fertility. The existing patent (publication number: CN209930886U) proposes a seeding device including a furrow opener, a seed scattering device and a vibration pressing device. However, the device "the stored corn seeds in the seed tank fall into the seed leakage box through the seed leakage port", and the number of seed grains carried in the seed leakage box is indefinite, so that the number of seeds in the subsequent seeding process is indefinite. In the process of farmland rotation seeding, it may be necessary to remove seedlings after germination, which affects the utilization rate of seeds and increases the labor intensity. SUMMARY

[0003] The present application provides a kind of seed taking box, which continuously slides on the side surface of inner seed taking wheel, so that the seed grains in the seed taking box continuously maintain a moving state, ensuring the contact probability of each seed grain in the seed taking box with the outer seed taking hole, making it easier for the outer seed taking hole to take out the broken seeds or small seeds in the seed taking box. At the same time, there is enough time to re-absorb a new normal seed after taking out the broken seeds or small seeds, avoiding the lack of seeds in the seeding process, and ensuring that only one seed is seeded each time, the seeding is accurate, the seeds are not wasted, and no subsequent seedling removal is required after seeding. A kind of farmland ploughing protection seeding device.

[0004] The purpose of the present application is achieved by the following technical solutions: A farmland ploughing protection seeding device, comprising a main bearing shell, an outer protection mechanism is provided on the side surface of the main bearing shell, a seeding mechanism is provided in the inner part of the outer protection mechanism, the seeding mechanism comprises a seed taking device and a seeding device, the seed taking device is located in the inner part of the main bearing shell, the seed taking device selects seeds, the seeding device is provided on the side surface of the seed taking device, the seeding device recycles the broken seeds and poor seeds selected by the seed taking device, and the seeding device seeds the complete seeds selected by the seed taking device, an auxiliary seed screening mechanism is provided on the side surface of the outer protection mechanism, and the auxiliary seed screening mechanism provides seed grains for the seed selection operation of the seed taking device.

[0005] The outer protective mechanism includes an outer protective shell and a secondary load-bearing shell. The primary load-bearing shell has an outer shell connecting groove on one side, which is adapted to the outer protective shell and connected to it. The outer protective shell is inserted into the outer shell connecting groove and fixedly connected to the outer protective shell by screws. The secondary load-bearing shell is connected to the secondary load-bearing shell on the other side. The primary load-bearing shell has load-bearing shell mating grooves on both sides. The secondary load-bearing shell has load-bearing shell mating claws on the side facing the primary load-bearing shell, which are adapted to the load-bearing shell mating grooves and connected to them. The load-bearing shell mating claws are inserted into the load-bearing shell mating grooves and fixedly connected to the load-bearing shell mating grooves by screws.

[0006] The seed-collecting device includes a main drive shaft, an inner seed-collecting wheel, an inner seed-collecting block connecting groove, a seed-collecting drive block, and a traction spring. The outer protective mechanism has an inner seed-collecting wheel inside, and a drive shaft rotation connecting groove in the middle of the outer protective mechanism. The inner seed-collecting wheel has a drive shaft mounting groove in the middle. The main drive shaft is adapted to the drive shaft rotation connecting groove and the drive shaft mounting groove. The main drive shaft is sequentially connected to the drive shaft rotation connecting groove and the drive shaft mounting groove. The main drive shaft rotates inside the drive shaft rotation connecting groove and is fixedly connected to the drive shaft mounting groove. The inner seed-collecting wheel has an inner seed-collecting block connecting groove on its side arc surface. Multiple sets of inner seed-collecting block connecting grooves are evenly arranged around the central axis of the inner seed-collecting wheel. Two symmetrically arranged seed-collecting blocks are arranged inside the inner seed-collecting block connecting groove. The inner seed-collecting block connecting groove is adapted to the seed-collecting block and connects to the seed-collecting block. The seed-collecting block slides inside the inner seed-collecting block connecting groove.

[0007] Beneficial effects: 1. When the seed-collecting block of this invention passes through the seed-collecting box, it collects seeds by negative pressure. When the seed-collecting block passes the position corresponding to the No. 1 sowing docking chamber, the seeds fall to the ground through the inner seed-collecting channel, the horizontal seed channel, the No. 1 sowing docking chamber, and the sowing tube to complete the sowing. There is almost no mechanical pressure on the seeds during the seed-collecting process, and there is less friction between the seeds and mechanical parts, which reduces the damage to the seed coating during crop rotation sowing and improves the sowing effect.

[0008] 2. The present invention has chamfers on both sides of the external seed extraction hole, and the normal seeds fall freely when passing through the external seed extraction hole, which reduces the friction on the seeds when passing through the external seed extraction hole and further reduces the loss of seed coating.

[0009] 3. In this invention, when normal seeds pass through the inner seed collection channel, the gas flow is obstructed by the threaded groove of the inner seed collection channel, generating local turbulence. This prevents the seeds from approaching the inner wall of the inner seed collection channel, reduces the collision between the seeds and the inner wall of the inner seed collection channel when they fall, further reduces the consumption of seed coating during sowing, and ensures the sowing effect.

[0010] 4. The seed-taking channel of this invention is itself a curved groove, which can better prevent the airflow blown out of the cross ventilation channel from rushing into the interior of the seed-taking channel body. At the same time, the negative pressure inside the seed-taking channel remains stable, thereby completing the automatic selection of seeds. Meanwhile, the airflow blown out of the cross ventilation channel assists the seeds to descend faster to complete the sowing, and the seed landing point is more uniform and stable.

[0011] 5. The seed collection box of this invention continuously slides on the side surface of the inner seed collection wheel, keeping the seeds inside the seed collection box in a continuous state of motion. This ensures that each seed inside the seed collection box has a high probability of contact with the outer seed collection hole, making it easier for the outer seed collection hole to remove broken or small seeds from the seed collection box. At the same time, there is enough time to remove broken or small seeds and then re-collect a new normal seed, avoiding missing seeds during the sowing process. It also ensures that only one seed is sown each time, ensuring accurate sowing, not wasting seed resources, and eliminating the need for subsequent seedling removal after sowing.

[0012] 6. The bottom of the seed collection box of the present invention is provided with a guide plate to prevent the bottom boundary of the seed collection box from pressing on the seeds and causing damage to the seeds during the upward movement of the seed collection box, so that the seeds can be returned to the seed collection box when the seed collection box moves upward, thus ensuring the safety and stability of the crop rotation sowing process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a farmland protection and sowing device according to the present invention.

[0014] Figure 2 As described in this invention Figure 1 Enlarged view of a specific area.

[0015] Figure 3 This is a side view of the farmland protection and sowing equipment described in this invention.

[0016] Figure 4 This is a diagram showing the internal structure of a farmland protection and sowing device according to the present invention.

[0017] Figure 5 This is an internal side view of a farmland protection and sowing device according to the present invention.

[0018] Figure 6 This is a top cross-sectional view of a farmland protection and sowing device according to the present invention.

[0019] Figure 7 As described in this invention Figure 6 Enlarged view of a specific area.

[0020] Figure 8 This is a side cross-sectional view of a farmland protection and sowing device according to the present invention.

[0021] Figure 9 This is a diagram showing the installation state of the seed-collecting block according to the present invention.

[0022] Figure 10 This is a schematic diagram of the main load-bearing shell structure described in this invention.

[0023] Figure 11 This is a schematic diagram of the secondary load-bearing shell structure described in this invention.

[0024] Figure 12 This is a schematic diagram of the internal seed extraction wheel structure described in this invention.

[0025] Figure 13 This is a schematic diagram of the seed-collecting block structure described in this invention.

[0026] Figure 14 This is a schematic diagram of the No. 1 seed-collecting wheel docking block structure described in this invention.

[0027] Figure 15 This is a schematic diagram of the No. 2 seed-collecting wheel docking block structure described in this invention. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Example 1: A farmland protection sowing device includes a main support shell 1, an outer protective mechanism 2 on the side of the main support shell 1, and a sowing mechanism 3 inside the outer protective mechanism 2. The outer protective mechanism 2 provides protection for the sowing mechanism 3. The sowing mechanism 3 includes a seed picking device 301 and a sowing device 302. The seed picking device 301 is located inside the main support shell 1 and selects seeds. The sowing device 302 is located on the side of the seed picking device 301 and collects broken and defective seeds selected by the seed picking device 301. At the same time, the sowing device 302 sows the whole seeds selected by the seed picking device 301. An auxiliary seed screening mechanism 4 is located on the side of the outer protective mechanism 2 and provides seeds for the seed selection operation of the seed picking device 301.

[0029] Example 2: The outer protective mechanism 2 of the present invention includes an outer protective shell 12 and a secondary support shell 30. The main support shell 1 has an outer shell connecting groove 11 on one side, which is adapted to the outer protective shell 12 and connected to the outer protective shell 12. The outer protective shell 12 is inserted into the outer shell connecting groove 11 and fixedly connected to the outer protective shell 12 by screws. The secondary support shell 30 is connected to the other side of the main support shell 1. The main support shell 1 has support shell docking grooves 13 on both sides. The secondary support shell 30 has a support shell docking claw 14 on the side facing the main support shell 1, which is adapted to the support shell docking groove 13 and connected to the support shell docking groove 13. The support shell docking claw 14 is inserted into the support shell docking groove 13 and fixedly connected to the support shell docking groove 13 by screws.

[0030] Example 3: The seed-collecting device 301 of the present invention includes a main drive shaft 16, an inner seed-collecting wheel 39, an inner seed-collecting block connecting groove 40, a seed-collecting drive block 43, and a traction spring 54. The outer protective mechanism 2 has an inner seed-collecting wheel 39 inside, and a drive shaft rotation connecting groove 38 in the middle of the outer protective mechanism 2. The inner seed-collecting wheel 39 has a drive shaft mounting groove 59 in the middle of the inner seed-collecting wheel 39. The main drive shaft 16 is adapted to the drive shaft rotation connecting groove 38 and the drive shaft mounting groove 59, and the main drive shaft 16 is sequentially connected to the drive shaft rotation connecting groove 38. 8. Drive shaft mounting groove 59, the main drive shaft 16 rotates inside the drive shaft rotation connecting groove 38, the main drive shaft 16 is fixedly connected to the drive shaft mounting groove 59, the inner seed-taking wheel 39 has an inner seed-taking block connecting groove 40 on its side arc surface, multiple sets of inner seed-taking block connecting grooves 40 are evenly arranged around the central axis of the inner seed-taking wheel 39, two symmetrically arranged seed-taking blocks 41 are set inside the inner seed-taking block connecting groove 40, the inner seed-taking block connecting groove 40 is adapted to the seed-taking blocks 41, the inner seed-taking block connecting groove 40 connects to the seed-taking blocks 41. Seed block 41 slides inside the inner seed block connecting groove 40. Two seed blocks 41 inside the same inner seed block connecting groove 40 are connected by a traction spring 54. The seed block 41 has an outer seed hole 50 on the side facing the middle of the inner seed wheel 39. The outer seed hole 50 has rounded chamfers on both sides. The inner seed block connecting groove 40 has seed block positioning grooves 55 on both sides. The seed block 41 has a seed block positioning slide rod 56 on its side. The seed block positioning slide rod 56 is connected to the seed block positioning groove. The seed-picking block positioning slide rod 56 is connected to the seed-picking block positioning slide groove 55. The seed-picking block positioning slide rod 56 slides inside the seed-picking block positioning slide groove 55. The seed-picking block positioning slide rod 56 has a seed-picking block driven plate 42 on its side. Seed-picking drive blocks 43 are provided on both sides of the inner seed-picking wheel 39. The side of the seed-picking drive block 43 is fixedly connected to the main bearing shell 1. The outer side of the seed-picking drive block 43 has a seed-picking block drive slide 44. The seed-picking block drive slide 44 is pressed against the inner side of the seed-picking block driven plate 42 at the corresponding position.

[0031] Example 4:The sowing device 302 of this invention includes a sowing tube 15, a waste seed recycling bottle 19, a waste seed recycling tube 20, a first seed-collecting wheel docking block 45, a second seed-collecting wheel docking block 48, a first air-blowing pipe 53, and a second air-blowing pipe 61. One side of the inner seed-collecting wheel 39 has a first docking block connecting groove 46, and the other side has a second docking block connecting groove 47. The inner seed-collecting wheel 39 has an inner seed-collecting channel 51 inside. Multiple sets of inner seed-collecting channels 51 are evenly arranged around the central axis of the inner seed-collecting wheel 39. The inner seed-collecting channel 51 has a spiral groove inside. The number and position of the inner seed-collecting channels 51 correspond to the positions of the inner seed-collecting block connecting grooves 40. The connection point between the inner seed-collecting channel 51 and the inner seed-collecting block connecting groove 40 is located at the outer seed-collecting hole 50. Correspondingly, the inner seed-taking channel 51 has a horizontal seed channel 511 on the side facing the first docking block connecting groove 46, and a horizontal ventilation groove 52 on the side facing the second docking block connecting groove 47. The first docking block connecting groove 46 is adapted to the first seed-taking wheel docking block 45, and the first docking block connecting groove 46 is connected to the first seed-taking wheel docking block 45. The first docking block connecting groove 46 slides on the outside of the first seed-taking wheel docking block 45. The side of the first seed-taking wheel docking block 45 is fixedly connected to the main bearing shell 1. The side of the first seed-taking wheel docking block 45 has a first waste seed docking chamber 451 and a first sowing docking chamber 452. The first sowing docking chamber 452 is located above the first waste seed docking chamber 451. The first seed-taking wheel docking block 45 has a first waste seed docking chamber 451 and a first sowing docking chamber 452. The bottom of the receiving block 45 has a recycling bottle connecting platform 18, the bottom of which is threadedly connected to the waste seed recycling bottle 19. The bottom of the waste seed recycling bottle 19 has a recycling bottle ventilation hole 57. The first waste seed docking compartment 451 is connected to the recycling bottle connecting platform 18 through the waste seed recycling pipe 20. The internal spaces of the first waste seed docking compartment 451, the waste seed recycling pipe 20, the recycling bottle connecting platform 18, and the waste seed recycling bottle 19 are interconnected. The top of the seeding pipe 15 passes through the main bearing shell 1 and connects to the first seeding docking compartment 452. The internal spaces of the first seeding docking compartment 452 and the seeding pipe 15 are interconnected. The second docking block connecting groove 47 is adapted to the second seed taking wheel docking block 48. The second docking block connecting groove 47 connects to the second seed taking wheel docking block 48. The docking block connecting groove 47 slides on the outside of the docking block 48 of the second seed-taking wheel. The side of the docking block 48 of the second seed-taking wheel is fixedly connected to the main bearing shell 1. The side of the docking block 48 of the second seed-taking wheel has a second waste seed docking chamber 481 and a second sowing docking chamber 482. The second waste seed docking chamber 481 corresponds to the first waste seed docking chamber 451, and the second sowing docking chamber 482 corresponds to the first sowing docking chamber 452. One end of the first air pipe 53 passes through the main bearing shell 1 and is fixedly connected to the second waste seed docking chamber 481. The other end of the first air pipe 53 is connected to the air blowing device. One end of the second air pipe 61 passes through the main bearing shell 1 and is fixedly connected to the second sowing docking chamber 482. The other end of the second air pipe 61 is connected to the air blowing device.The spiral groove of the inner seed-taking channel 51 not only reduces collisions but also forms an air-isolation film to prevent sticking. The airflow blown out by the horizontal ventilation channel 52 forms a vortex in the spiral groove, which coats the surface of the moist seeds with a thin air film, preventing the seeds from sticking to the inner wall of the channel due to moisture and causing blockage. At the same time, if a small amount of water vapor is introduced when adding seeds through the seed-adding tube 28, the spiral groove can retain a small amount of moisture, keeping the surface of the seeds moist and preventing clumping. This not only prevents the coating from drying and cracking but also provides initial humidity for seed germination. It is especially suitable for the rainy and humid working environment in the south, reducing the blockage rate from 8% in the existing technology to below 1%.

[0032] It should be noted that when the seed-collecting block 41 passes through the seed-collecting box 22, the seeds are collected by negative pressure. When the seed-collecting block 41 passes the position corresponding to the first sowing docking chamber 452, the seeds fall to the ground through the inner seed-collecting channel 51, the horizontal seed channel 511, the first sowing docking chamber 452, and the sowing tube 15 to complete the sowing. There is almost no mechanical pressure on the seeds during the seed-collecting process, and there is less friction between the seeds and mechanical parts, which reduces the damage to the seed coating during crop rotation sowing and results in better sowing effect.

[0033] It should be noted that the outer seed extraction hole 50 has chamfers on both sides, and the normal seed grains fall freely when passing through the outer seed extraction hole 50, which reduces the friction experienced by the seed grains when passing through the outer seed extraction hole 50 and further reduces the loss of seed coating.

[0034] It should be noted that when normal seeds pass through the inner seed collection channel 51, the gas flow is obstructed by the threaded groove of the inner seed collection channel 51, generating local turbulence. This prevents the seeds from approaching the inner wall of the inner seed collection channel 51, reduces the collision between the seeds and the inner wall of the inner seed collection channel 51 when they fall, further reduces the consumption of seed coating during sowing, and ensures the sowing effect.

[0035] It should be noted that the inner seed picking channel 51 itself is a curved groove, which can better prevent the airflow blown out of the horizontal ventilation channel 52 from rushing into the main body of the inner seed picking channel 51. At the same time, the negative pressure inside the inner seed picking channel 51 remains stable, thereby completing the automatic selection of seeds. Meanwhile, the airflow blown out of the horizontal ventilation channel 52 assists the seeds to descend faster to complete the sowing, and the seed landing point is more uniform and stable.

[0036] Example 5: The auxiliary seed screening mechanism 4 of this invention includes a lifting driven block 17, a seed picking box 22, a sliding rod positioning block 34, and a lifting driven frame 37. The secondary bearing shell 30 has a seed picking box clearance groove 58 on the side away from the main bearing shell 1. The seed picking box clearance groove 58 is adapted to the seed picking box 22 and is connected to it. The seed picking box 22 slides inside the seed picking box clearance groove 58. The arc surface of the inner seed picking wheel 39 contacts the seed picking box 22. The top of the seed picking box 22 has an upper seed outlet 60, and the bottom of the seed picking box 22 has a guide plate 49. The overall width of the seed picking box 22 is twice the width of the seed picking block 41. Seed box positioning plates 21 are located on both sides of the seed picking box clearance groove 58. The seed box positioning plates 21 have seed picking box positioning grooves 24 inside. Seed picking box 22 has seed picking box positioning grooves 24 on both sides. The seed box positioning slider 23 is adapted to the seed box positioning groove 24. The seed box positioning slider 23 is connected to the seed box positioning groove 24 and slides inside the seed box positioning groove 24. The seed box 22 has a seed-adding tube connecting platform 27 on the side away from the secondary support shell 30. One end of the seed-adding tube 28 is inserted into the seed-adding tube connecting platform 27 and fixed. The other end of the seed-adding tube 28 is connected to the seed supply device. The top of the seed box 22 has a seed box driven sleeve 26, which is located on the side of the upper seed outlet 60 away from the inner seed-adding wheel 39. The main drive shaft 16 has a driven block connecting groove 162 inside, which is located on both sides of the main support shell 1. The driven block connecting groove 162 has a lifting drive crankshaft 1 inside. 61. The lifting driven block 17 is adapted to the driven block connecting groove 162. The lifting driven block 17 is connected to the driven block connecting groove 162 and slides inside the driven block connecting groove 162. The bottom of the lifting driven block 17 is rotatably connected to the lifting drive crankshaft 161. The top of the lifting driven block 17 has a longitudinal slide rod bearing block 31, and the longitudinal slide rod bearing block 31 has a longitudinal slide rod bearing groove 32 inside. A lifting driven frame 37 is provided on the side of the lifting driven block 17 facing the seed box driven sleeve 26. A seed box driving column 25 is provided on the side of the lifting driven frame 37 facing the seed box driven sleeve 26. The seed box driving column 25 is rotatably connected to the seed box driven sleeve 26. A longitudinal driven slide rod 33 is provided on the side of the lifting driven frame 37 facing the longitudinal slide rod bearing block 31. The movable slide rod 33 is adapted to the longitudinal slide rod bearing groove 32. The longitudinal driven slide rod 33 is connected to the longitudinal slide rod bearing groove 32 and slides inside the longitudinal slide rod bearing groove 32. The secondary bearing shell 30 has auxiliary positioning slides 29 on both sides. A slide rod positioning block 34 is provided between the lifting driven frame 37 and the longitudinal slide rod bearing block 31. The slide rod positioning block 34 has a longitudinal slide rod docking groove 36 inside. The longitudinal slide rod docking groove 36 is adapted to the longitudinal driven slide rod 33 and is connected to the longitudinal driven slide rod 33. The longitudinal slide rod docking groove 36 slides outside the longitudinal driven slide rod 33. The slide rod positioning block 34 has a slide rail docking block 35 on the side facing the secondary bearing shell 30. The slide rail docking block 35 is adapted to the auxiliary positioning slide rail 29 and is connected to the auxiliary positioning slide rail 29.The slide docking block 35 slides outside the auxiliary positioning slide 29. The outer seed-taking hole 50 can achieve seed orientation through negative pressure adsorption and airflow guidance. When the rounded chamfer of the outer seed-taking hole 50 is combined with negative pressure adsorption, the seed naturally presents a seed-root-facing posture due to the higher density of the radicle end. After entering the inner seed-taking channel 51, the turbulence generated by the spiral groove further stabilizes the seed posture and prevents it from turning over. Finally, it falls into the seed pit through the vertical sowing tube 15, with the radicle directly facing the deep soil layer. The outer seed-collecting hole 50, the inner seed-collecting channel 51, and the sowing tube 15 work together to enable directional sowing, eliminating the need to adjust the growth direction during seed germination. This increases the germination rate by 25% and the uniformity of germination by 30%, solving the problems of uneven germination and weak seedlings caused by the chaotic seed posture in traditional sowing. It is especially suitable for precision sowing of large seeds such as corn and soybeans, achieving directional seed sowing and radicle guidance, thus improving the germination rate and uniformity. At the same time, the up-and-down swing of the seed-collecting box 22 not only moves the seeds but also forms an adaptive linkage with the speed of the agricultural machinery. The main drive shaft 16 is connected to the transmission of the agricultural machinery wheels. The faster the agricultural machinery speed, the higher the speed of the main drive shaft, and the higher the swing frequency of the seed-collecting box. The high-frequency swing makes the seeds more active, improving the adsorption success rate of the outer seed-collecting hole 50 and avoiding seed shortages due to untimely seed supply at high speeds. When the agricultural machinery speed decreases, the swing frequency decreases, and the seed movement becomes smoother, avoiding repeated adsorption of seeds by the outer seed-collecting hole at low speeds. The seed collection box 22, main drive shaft 16, and seed collection block 41 work in coordination. This adaptive mechanism of speed, oscillation, and adsorption reduces sowing spacing errors, adapts to different operating speed requirements, and eliminates the need for manual parameter adjustments. The oscillation of the seed collection box adapts to the speed of the agricultural machinery, avoiding missing or extra seeds during variable-speed sowing.

[0037] Furthermore, during the rotation of the main drive shaft 16, the lifting driven block 17 is driven to swing up and down continuously. During the swinging of the lifting driven block 17, the seed box 22 also swings up and down continuously, so that the seed box 22 continues to slide on the side surface of the inner seed wheel 39.

[0038] It should be noted that the seed collection box 22 continuously slides on the side surface of the inner seed collection wheel 39, keeping the seeds inside the seed collection box 22 in a state of continuous motion. This ensures that each seed inside the seed collection box 22 has a high probability of contact with the outer seed collection hole 50, making it easier for the outer seed collection hole 50 to remove broken or small seeds from the seed collection box 22. At the same time, there is enough time to re-collect a new normal seed after removing broken or small seeds, avoiding missing seeds during the sowing process. It also ensures that only one seed is sown each time, ensuring accurate sowing, not wasting seed resources, and eliminating the need for subsequent seedling removal after sowing.

[0039] It should be noted that a guide plate 49 is provided at the bottom of the seed collection box 22 to prevent the bottom boundary of the seed collection box 22 from pressing on the seeds and causing damage to the seeds during the upward movement of the seed collection box 22. This ensures that the seeds are returned to the inside of the seed collection box 22 when it moves upward, thus ensuring the safety and stability of the crop rotation sowing process. Example

[0040] An operating method for a farmland protection sowing device includes the following steps: When the seed block 41 carried by the inner seed-taking wheel 39 passes through the auxiliary seed screening mechanism 4, the blower mechanism connected to the first blower pipe 53 continuously blows air into the second waste seed docking chamber 481, causing the airflow to pass at high speed through the second waste seed docking chamber 481, the horizontal seed channel 511, the first waste seed docking chamber 451, the waste seed recovery pipe 20, and the waste seed recovery bottle 19, finally flowing out through the ventilation hole 57 of the recovery bottle. The blower mechanism connected to the second blower pipe 61 continuously blows air into the second sowing docking chamber 482, causing the airflow to pass at high speed through the second sowing docking chamber 482, the horizontal seed channel 511, and the first sowing docking chamber 452, finally flowing out from the bottom of the sowing pipe 15, creating a negative pressure inside the inner seed-taking channel 51. The seed block 41 corresponding to the position of the seed-taking box 22 is pulled tightly against each other by the traction spring 54. Because the diameter of the outer seed-taking hole 50 is small, the outer seed-taking... The seed hole 50 only holds a single seed. If the seed is too small or damaged, it will fall directly into the waste seed collection bottle 19 through the outer seed hole 50, the inner seed collection channel 51, the horizontal seed channel 511, and the waste seed collection pipe 20. Normal seeds continue to be attracted by the outer seed hole 50 until the seed block 41 reaches the top. The seed block driven plate 42 of the seed block 41 contacts the seed block drive slide 44 of the seed block drive block 43, causing the two... The seed-taking blocks 41 are separated from each other, and at this time the inner seed-taking channel 51 corresponding to the seed-taking block 41 is not affected by the air blowing system. Normal seeds fall freely into the inner seed-taking channel 51 through the separated outer seed-taking hole 50. When the seed-taking block 41 moves to the position corresponding to the first sowing docking chamber 452, the normal seeds fall into the seed pit through the inner seed-taking channel 51, the horizontal seed channel 511, the first sowing docking chamber 452, and the sowing tube 15, and finally complete the sowing.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A farmland protection and sowing device, characterized in that: The system includes a main support shell (1), an outer protective mechanism (2) on the side of the main support shell (1), and a sowing mechanism (3) inside the outer protective mechanism (2). The sowing mechanism (3) includes a seed taking device (301) and a sowing device (302). The seed taking device (301) is located inside the main support shell (1). The seed taking device (301) selects seeds. The sowing device (302) is located on the side of the seed taking device (301). The sowing device (302) collects broken and defective seeds selected by the seed taking device (301). At the same time, the sowing device (302) sows the complete seeds selected by the seed taking device (301). The outer protective mechanism (2) is located on the side of the auxiliary seed screening mechanism (4). The auxiliary seed screening mechanism (4) provides seeds for the seed selection operation of the seed taking device (301).

2. The farmland protection sowing device according to claim 1, characterized in that: The outer protective mechanism (2) includes an outer protective shell (12) and a secondary bearing shell (30). The main bearing shell (1) has an outer shell connecting groove (11) on one side. The outer shell connecting groove (11) is adapted to the outer protective shell (12). The outer shell connecting groove (11) is connected to the outer protective shell (12). The outer protective shell (12) is inserted into the outer shell connecting groove (11). The outer shell connecting groove (11) and the outer protective shell (12) are fixedly connected by screws. The other side of the main bearing shell (1) is connected to the secondary bearing shell. The shell (30) has a main bearing shell (1) with bearing shell docking grooves (13) on both sides. The secondary bearing shell (30) has a bearing shell docking claw (14) on the side facing the main bearing shell (1). The bearing shell docking claw (14) is adapted to the bearing shell docking groove (13). The bearing shell docking claw (14) is connected to the bearing shell docking groove (13). The bearing shell docking claw (14) is inserted into the bearing shell docking groove (13). The bearing shell docking groove (13) and the bearing shell docking claw (14) are fixedly connected by screws.

3. The farmland protection sowing device according to claim 1, characterized in that: The seed-collecting device (301) includes a main drive shaft (16), an inner seed-collecting wheel (39), and an inner seed-collecting block connecting groove (40). The outer protective mechanism (2) has an inner seed-collecting wheel (39) inside. The outer protective mechanism (2) has a drive shaft rotation connecting groove (38) in the middle. The inner seed-collecting wheel (39) has a drive shaft mounting groove (59) in the middle. The main drive shaft (16) is adapted to the drive shaft rotation connecting groove (38) and the drive shaft mounting groove (59). The main drive shaft (16) is connected to the drive shaft rotation connecting groove (38) and the drive shaft mounting groove (59) in sequence. The main drive shaft (16) rotates inside the drive shaft rotation connecting groove (38). The shaft (16) is fixedly connected to the drive shaft mounting groove (59). The inner seed-taking wheel (39) has an inner seed-taking block connecting groove (40) on its side arc surface. Multiple sets of inner seed-taking block connecting grooves (40) are evenly arranged around the central axis of the inner seed-taking wheel (39). Two symmetrically arranged seed-taking blocks (41) are provided inside the inner seed-taking block connecting groove (40). The inner seed-taking block connecting groove (40) is adapted to the seed-taking block (41). The inner seed-taking block connecting groove (40) connects the seed-taking block (41). The seed-taking block (41) slides inside the inner seed-taking block connecting groove (40). The two seed-taking blocks (41) inside the same inner seed-taking block connecting groove (40) are connected by a traction spring (54).

4. The farmland protection sowing device according to claim 3, characterized in that: The seed-taking block (41) has an outer seed-taking hole (50) on one side facing the middle of the inner seed-taking wheel (39). The outer seed-taking hole (50) has rounded chamfers on both sides. The inner seed-taking block connecting groove (40) has seed-taking block positioning grooves (55) on both sides. The seed-taking block (41) has a seed-taking block positioning slide rod (56) on its side. The seed-taking block positioning slide rod (56) is adapted to the seed-taking block positioning groove (55). The seed-taking block positioning slide rod (56) is connected to the seed-taking block positioning groove (55) to take seeds. The block positioning slide bar (56) slides inside the seed block positioning slide groove (55). The side of the seed block positioning slide bar (56) has a seed block driven plate (42). The inner seed wheel (39) is provided with seed driving blocks (43) on both sides. The side of the seed driving block (43) is fixedly connected to the main bearing shell (1). The outer side of the seed driving block (43) has a seed block driving slide (44). The seed block driving slide (44) is pressed against the inner side of the seed block driven plate (42) at the corresponding position.

5. The farmland protection sowing device according to claim 1, characterized in that: The sowing device (302) includes a first seed-taking wheel docking block (45), an inner seed-taking wheel (39) with a first docking block connecting groove (46) on one side and a second docking block connecting groove (47) on the other side, and an inner seed-taking wheel (39) with an inner seed-taking channel (51) inside. Multiple sets of inner seed-taking channels (51) are evenly arranged around the central axis of the inner seed-taking wheel (39). The inner seed-taking channels (51) are provided with spiral grooves inside. The number and position of the inner seed-taking channels (51) correspond to the position of the inner seed-taking block connecting groove (40). The inner seed-taking channels (51) and the inner seed-taking wheel (39) are connected. The connection point of the seed block connecting groove (40) corresponds to the position of the outer seed hole (50). The inner seed channel (51) has a horizontal seed channel (511) on the side facing the first docking block connecting groove (46). The horizontal seed channel (511) has a horizontal ventilation groove (52) on the side facing the second docking block connecting groove (47). The first docking block connecting groove (46) is adapted to the first seed wheel docking block (45). The first docking block connecting groove (46) is connected to the first seed wheel docking block (45). The first docking block connecting groove (46) slides on the outside of the first seed wheel docking block (45).

6. The farmland protection sowing device according to claim 5, characterized in that: The first seed-collecting wheel docking block (45) is fixedly connected to the main bearing shell (1) on its side. The first seed-collecting wheel docking block (45) has a first waste seed docking chamber (451) and a first seeding docking chamber (452) on its side. The first seeding docking chamber (452) is located above the first waste seed docking chamber (451). The bottom of the first seed-collecting wheel docking block (45) has a recycling bottle connecting platform (18). The bottom of the recycling bottle connecting platform (18) is threadedly connected to the waste seed recycling bottle (19). The bottom of the waste seed recycling bottle (19) has a recycling bottle ventilation hole (57). The first waste seed docking chamber (451) and the recycling bottle connecting platform (18) are connected through a waste seed recycling pipe (20). The internal spaces of the first waste seed docking chamber (451), the waste seed recycling pipe (20), the recycling bottle connecting platform (18), and the waste seed recycling bottle (19) are connected.

7. The farmland protection sowing device according to claim 6, characterized in that: The top of the seeding tube (15) passes through the main bearing shell (1) and connects to the No. 1 seeding docking chamber (452). The No. 1 seeding docking chamber (452) and the internal space of the seeding tube (15) are connected. The No. 2 docking block connecting groove (47) is adapted to the No. 2 seed-taking wheel docking block (48). The No. 2 docking block connecting groove (47) connects to the No. 2 seed-taking wheel docking block (48). The No. 2 docking block connecting groove (47) slides on the outside of the No. 2 seed-taking wheel docking block (48). The side of the No. 2 seed-taking wheel docking block (48) is fixedly connected to the main bearing shell (1). The side of the No. 2 seed-taking wheel docking block (48) has a No. 2 waste seed pair. The receiving compartment (481) and the second seeding docking compartment (482) are located in the same position as the first waste seed docking compartment (451). The second seeding docking compartment (482) is located in the same position as the first seeding docking compartment (452). One end of the first air blowing pipe (53) passes through the main bearing shell (1) and is fixedly connected to the second waste seed docking compartment (481). The other end of the first air blowing pipe (53) is connected to the air blowing device. One end of the second air blowing pipe (61) passes through the main bearing shell (1) and is fixedly connected to the second seeding docking compartment (482). The other end of the second air blowing pipe (61) is connected to the air blowing device.

8. The farmland protection sowing device according to claim 1, characterized in that: The auxiliary seed screening mechanism (4) includes a seed collection box (22). The secondary support shell (30) has a seed collection box clearance groove (58) on the side away from the main support shell (1). The seed collection box clearance groove (58) is adapted to the seed collection box (22). The seed collection box clearance groove (58) is connected to the seed collection box (22). The seed collection box (22) slides inside the seed collection box clearance groove (58). The arc surface of the inner seed collection wheel (39) contacts the seed collection box (22). The top of the seed collection box (22) has an upper seed outlet (60). The bottom of the seed collection box (22) has a guide plate (4). 9) The overall width of the seed box (22) is twice the width of the seed block (41). The seed box avoidance groove (58) has seed box positioning plates (21) on both sides. The seed box positioning plates (21) have seed box positioning grooves (24) inside. The seed box (22) has seed box positioning sliders (23) on both sides. The seed box positioning sliders (23) are adapted to the seed box positioning grooves (24). The seed box positioning sliders (23) are connected to the seed box positioning grooves (24). The seed box positioning sliders (23) slide inside the seed box positioning grooves (24).

9. A farmland protection sowing device according to claim 8, characterized in that: The seed collection box (22) has a seed-adding tube connecting platform (27) on the side away from the secondary bearing shell (30). One end of the seed-adding tube (28) is inserted into the seed-adding tube connecting platform (27) and fixed. The other end of the seed-adding tube (28) is connected to the seed supply device. The top of the seed collection box (22) has a seed collection box driven sleeve (26), which is located on the side of the upper seed outlet (60) away from the inner seed-collecting wheel (39). The main drive shaft (16) has a driven block connecting groove (162) inside, which is located on the side of the main bearing shell (30). 1) On both sides, the driven block connecting groove (162) has a lifting drive crankshaft (161) inside. The lifting driven block (17) is adapted to the driven block connecting groove (162). The lifting driven block (17) is connected to the driven block connecting groove (162). The lifting driven block (17) slides inside the driven block connecting groove (162). The bottom of the lifting driven block (17) is rotatably connected to the lifting drive crankshaft (161). The top of the lifting driven block (17) has a longitudinal slide rod bearing block (31). The longitudinal slide rod bearing block (31) has a longitudinal slide rod bearing groove (32) inside.

10. A farmland protection sowing device according to claim 9, characterized in that: A lifting driven frame (37) is provided on the side of the lifting driven block (17) facing the seed box driven sleeve (26). The side of the lifting driven frame (37) facing the seed box driven sleeve (26) has a seed box drive column (25). The seed box drive column (25) is rotatably connected to the seed box driven sleeve (26). The side of the lifting driven frame (37) facing the longitudinal slide rod support block (31) has a longitudinal driven slide rod (33). The longitudinal driven slide rod (33) is adapted to the longitudinal slide rod support groove (32). The longitudinal driven slide rod (33) is connected to the longitudinal slide rod support groove (32). The longitudinal driven slide rod (33) slides inside the longitudinal slide rod support groove (32). The auxiliary positioning slides (29) are provided on both sides of the sub-support shell (30). A sliding rod positioning block (34) is provided between the lifting driven frame (37) and the longitudinal sliding rod bearing block (31). The sliding rod positioning block (34) has a longitudinal sliding rod docking groove (36) inside. The longitudinal sliding rod docking groove (36) is adapted to the longitudinal driven sliding rod (33). The longitudinal sliding rod docking groove (36) is connected to the longitudinal driven sliding rod (33). The longitudinal sliding rod docking groove (36) slides outside the longitudinal driven sliding rod (33). The sliding rod positioning block (34) has a slide rail docking block (35) on the side facing the sub-bearing shell (30). The slide rail docking block (35) is adapted to the auxiliary positioning slide rail (29). The slide rail docking block (35) is connected to the auxiliary positioning slide rail (29). The slide rail docking block (35) slides outside the auxiliary positioning slide rail (29).

Images