Corn wide and narrow row one hole double plant misplacement seeding device and method

Abstract

The present application relates to the technical field of corn planting, and especially relates to a corn wide-narrow-row one-hole double-plant misplacement seeding device and method. The technical problem to be solved is that in large-area continuous seeding, the existing seeding device is usually difficult to detect whether corn seeds are missed, and when the seeds are missed, the seeding device cannot timely supplement the seeds, thereby reducing the seeding accuracy. Further, when the covered soil block is large and hard, the corn seedlings are difficult to grow from the soil block, thereby reducing the survival rate of the seedlings and further reducing the corn yield. The technical scheme is that the corn wide-narrow-row one-hole double-plant misplacement seeding device comprises a mounting frame and a storage bin, and the mounting frame is provided with the storage bin. The airflow at the lower side of the deflector blows the seeded corn seeds to move to the left, so that a distance is left between the supplemented corn seeds and the seeded corn seeds, and the root system of the corn plant is facilitated to expand.

Description

Technical Field

[0001] This invention relates to the field of maize planting technology, and in particular to a device and method for planting two plants in one hole with staggered spacing in wide and narrow rows of maize. Background Technology

[0002] In existing corn planting patterns, to reduce the land area occupied and increase corn yield, a wide-narrow row, two-seed-per-hole planting pattern is adopted, where two corn seeds are placed in one hole. However, existing planters are prone to under-planting corn seeds, especially during large-scale continuous planting, thus affecting corn yield. Existing planting devices often have difficulty detecting missed corn seeds, and when missed seeds occur, timely replanting is not possible, reducing planting accuracy. Furthermore, since corn seeds need to be covered with soil promptly, if the covering soil clods are large and hard, corn seedlings have difficulty growing out of the soil clods, thus reducing seedling survival rate and consequently reducing corn yield. Summary of the Invention

[0003] To overcome the shortcomings of existing sowing devices, which often struggle to detect missed sowing of corn seeds during large-scale continuous sowing, and the inability to promptly replant when missed seeds occur, thus reducing sowing accuracy, and further, the difficulty for corn seedlings to grow from large and hard clods of soil, thereby reducing seedling survival rate and ultimately reducing corn yield, this invention provides a corn wide-narrow row double-plant staggered sowing device and method.

[0004] The technical solution is as follows: a corn wide-narrow row double-plant staggered planting device, including a mounting frame, a storage bin, seed metering devices, and plows; the mounting frame is connected to an agricultural tractor; the storage bin is installed on the mounting frame; the storage bin contains corn seeds; several seed metering devices are installed on the mounting frame; each seed metering device is connected to the storage bin; several plows are installed on the upper and lower sides of the mounting frame; each plow is connected to the adjacent seed metering device; the plows are inserted into the cultivated soil; it also includes an infrared sensor, a replanting bin, a replanting pipe, an air supply pipe, and a covering system; each plow is equipped with an infrared sensor to detect the number of corn seeds planted. The system includes: a sensor; a seed metering device with a seed storage bin for corn seeds; a vertical groove in each seed metering device, capable of holding only one corn seed; a connection between each seed metering device and a storage bin; several seeding tubes for replanting corn seeds located under the mounting frame; an acute angle between the seeding tubes and the plowshare, with the seeding tubes tilted to the right; a connection between each seed metering device and an adjacent seeding tube; an air supply pipe installed on the mounting frame; the air supply pipes connected to all seed metering devices via electrically controlled valves; a connection between the air supply pipes and an external air pump; and a covering system to improve corn seed survival rate installed under the mounting frame.

[0005] As a further preferred option, a guide plate is also included; each replanting tube is fixed with a guide plate to maintain the spacing between two corn seeds in the same hole; the guide plate is located above the tillage, and the lowest point of the guide plate is higher than the lowest point of the plowshare.

[0006] As a further preferred embodiment, each guide plate is provided with an arc-shaped section; each replanting tube is provided with a curved section on its lower side; the tangent direction of the end of the curved section points towards the guide plate.

[0007] As a further preferred embodiment, the covering system includes a first drive assembly and rollers; the first drive assembly is located on the lower side of the mounting frame; the rollers are mounted on the first drive assembly and are driven to rotate by the first drive assembly; the rollers are located above the cultivated land surface; each roller surface has a groove.

[0008] As a further preferred option, the covering system also includes pressure bars; several pressure bars for breaking up larger clods of soil are fixed to each roller; the pressure bars are made of elastic material; the lowest point of the pressure bar located on the bottom side of the roller is higher than the lowest point of the plow head, and each pressure bar is designed to protrude towards the side away from the center of the roller.

[0009] As a further preferred option, the covering system also includes deflectors; each deflector is fixed with several deflectors for moving the soil on both sides of the trench to cover the corn seeds; each deflector has several through holes.

[0010] As a further preferred option, each guide plate is provided with a protruding rod.

[0011] As a further preferred embodiment, an adjustment system is also included, which includes a second drive assembly and a scraper; the second drive assembly is provided on the storage compartment; the second drive assembly is equipped with a scraper to prevent corn seeds from sticking to the inner wall of the storage compartment, and the scraper is driven to rotate by the second drive assembly.

[0012] As a further preferred option, the adjustment system also includes arc-shaped blocks; several arc-shaped blocks are fixed to the scraper to guide corn seeds into the seed metering device and the refill bin.

[0013] The method for planting corn in wide and narrow rows with two plants per hole in staggered positions includes the following steps:

[0014] S1: Soaking: Soak the corn seeds to be planted in a solution of chemicals and place them in a storage compartment.

[0015] S2: Grooving, connecting the mounting bracket to the agricultural tractor, and using the agricultural tractor to drive the plow to create grooves in the cultivated land;

[0016] S3: Sowing. Two corn seeds are drawn out quantitatively and discharged downward into the plow head by the seed metering device, so that the corn seeds fall into the pre-drilled furrows.

[0017] S4: Detection. The number of corn seeds falling into the furrow is detected by an infrared sensor. When a missed corn seed is detected, a replanting tube is used to replant corn seeds, improving the accuracy of two plants per hole.

[0018] S5: Covering. The loose soil on both sides of the prepared trench is moved down the guide plate by the lever, covering the sown corn seeds. This prevents the replanted corn seeds from coming into direct contact with the already sown corn seeds, thus ensuring that the two corn seeds are independent of each other during germination and improving the survival rate of the corn seeds.

[0019] The present invention has the following advantages:

[0020] The airflow is divided into two streams, upper and lower, by the guide plate. When the guide plate and the replanting pipe move to the left under the drive of the mounting frame, the airflow under the guide plate blows the already sown corn seeds, causing them to move to the left, thus ensuring that there is a distance between the replanted corn seeds and the already sown corn seeds, which facilitates the expansion of the corn plant's root system.

[0021] When the mounting frame moves to the left, the rollers move to the left, which in turn pushes the larger soil clods to the left, preventing the larger soil clods from directly covering the seeds, while leaving a gap between the groove and the cultivated land, so that the airflow can blow towards the sown corn seeds.

[0022] When the roller rotates counterclockwise, it drives the pressure bar to rotate counterclockwise, thereby contacting and squeezing larger soil clods, breaking them up. The broken soil clods then enter between two adjacent pressure bars, making it easier for the soil to cover the corn seeds.

[0023] The loose soil on both sides of the prepared trench is moved by the lever, and the loose soil moves down along the guide plate to cover the sown corn seeds. This prevents the replanted corn seeds from coming into direct contact with the sown corn seeds, thus ensuring that the two corn seeds are independent of each other during germination and improving the survival rate of the corn seeds. The lever also lifts the loose soil between the guide plate and the lever upwards to ensure that the surface of the guide plate is always covered with loose soil.

[0024] By controlling the rotation of the scraper, the scraper is made to scrape against the inner wall of the storage compartment, thereby detaching the corn seeds adhering to the inner wall of the storage compartment from the compartment and thus preventing the corn seeds from sticking to the inner wall of the storage compartment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the corn wide and narrow row single-hole double-plant staggered sowing device of the present invention;

[0026] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0027] Figure 3 This is a cross-sectional view of a first combination of the mounting frame and storage compartment of the present invention;

[0028] Figure 4 This is a cross-sectional view of a second combination of the mounting frame and storage compartment of the present invention;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the replanting bin and replanting tube combination of the present invention;

[0030] Figure 6 This is a cross-sectional view of the replanting bin and replanting tube assembly of the present invention;

[0031] Figure 7 For the present invention Figure 6 Enlarged view of area A in the middle;

[0032] Figure 8 For the present invention Figure 6 Enlarged view of area B in the middle;

[0033] Figure 9 This is a three-dimensional structural diagram of the coverage system of the present invention;

[0034] Figure 10 This is a three-dimensional structural diagram of the coverage system of the present invention;

[0035] Figure 11 This is a three-dimensional structural diagram of the roller and pressure bar combination of the present invention;

[0036] Figure 12 This is a three-dimensional structural diagram of the guide plate and deflector assembly of the present invention;

[0037] Figure 13 This is a three-dimensional structural diagram of the adjustment system of the present invention;

[0038] Figure 14 This is a top view of the adjustment system of the present invention.

[0039] Labels in the diagram: 1-Mounting frame, 2-Storage bin, 3-Seed metering device, 4-Plowhead, 5-Infrared sensor, 6-Replenishment bin, 6001-Vertical groove, 7-Replenishment pipe, 7001-Bend, 8-Air pipe, 201-Guide plate, 20101-Arc-shaped part, 20102-Through hole, 20103-Protruding rod, 301-Roller, 30101-Groove, 302-Pressure rod, 303-First motor, 304-Pulley plate, 401-Scraper, 402-Arc-shaped block, 403-Second motor. Detailed Implementation

[0040] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0041] Example 1

[0042] like Figures 2-8 As shown, a corn wide-narrow row double-plant staggered planting device includes a mounting frame 1, a storage bin 2, a seed metering device 3, and a plow 4. The mounting frame 1 is connected to an agricultural tractor. The storage bin 2 is mounted on the mounting frame 1. Corn seeds are placed in the storage bin 2. Five seed metering devices 3 are set on the mounting frame 1. Each seed metering device 3 is connected to the storage bin 2. Five plow 4 are mounted on the upper and lower sides of the mounting frame 1. Each plow 4 is connected to the adjacent seed metering device 3. The plow 4 is inserted into the soil of the cultivated land.

[0043] It also includes an infrared sensor 5, a seeding bin 6, a seeding pipe 7, an air supply pipe 8, and a covering system; each plowshare 4 is equipped with an infrared sensor 5; each seed metering device 3 is equipped with a seeding bin 6; each seeding bin 6 is equipped with a vertical groove 6001, which can only hold one corn seed; each seeding bin 6 is connected to the storage bin 2; five seeding pipes 7 are installed on the underside of the mounting frame 1; the angle between the seeding pipe 7 and the plowshare 4 is set to an acute angle, and the seeding pipe 7 is tilted to the right; each seeding bin 6 is connected to the adjacent seeding pipe 7; an air supply pipe 8 is installed on the mounting frame 1; the air supply pipe 8 is connected to all the seeding bins 6 through an electrically controlled valve; the air supply pipe 8 is connected to an external air pump. When the infrared sensor 5 detects a missed corn seed, the external air pump is controlled to fill the air supply pipe 8 with air. Then, the electrically controlled valve between the air supply pipe 8 and the replanting chamber 6 is opened, allowing airflow to enter the replanting chamber 6 from the air supply pipe 8. At this time, there is a corn seed in the vertical groove 6001 of the replanting chamber 6. The airflow blows the corn seed in the vertical groove 6001 into the replanting pipe 7, and then the corn seed is sprayed out from the replanting pipe 7 and falls into the prepared soil trench, thus realizing the replanting of corn seeds. A covering system is installed on the lower side of the mounting frame 1. The covering system breaks up larger soil clods to ensure that the corn seeds are properly covered with soil and improve the survival rate of corn seeds.

[0044] It also includes a guide plate 201; a guide plate 201 is fixedly attached to each replanting pipe 7; the guide plate 201 is located above the cultivated land, and the lowest point of the guide plate 201 is higher than the lowest point of the plow head 4. The guide plate 201 divides the airflow into two airflows, upper and lower. When the guide plate 201 and the replanting pipe 7 move to the left under the drive of the mounting frame 1, the airflow under the guide plate 201 blows the already sown corn seeds, causing them to move to the left, thereby ensuring that there is a distance between the replanted corn seeds and the already sown corn seeds, which facilitates the root expansion of the corn plants.

[0045] Each guide plate 201 is provided with an arc-shaped part 20101; each replanting tube 7 is provided with a curved part 7001 on its lower side; the tangent direction of the end of the curved part 7001 points towards the guide plate 201. When the corn seed passes through the arc-shaped part 20101, the corn seed flies out along the tangent direction of the arc-shaped part 20101 under the drive of the airflow, and then contacts the curved part 7001 of the replanting tube 7, causing the corn seed to slide along the inner wall of the curved part 7001, and then fall back to the arc-shaped part 20101 along the tangent direction of the end of the curved part 7001, so that the replanted corn seed falls on the right side of the guide plate 201, thereby improving the accuracy of the replanted corn seed falling position.

[0046] When sowing corn seeds, the mounting frame 1 is first attached to the agricultural tractor, and the corn seeds are piled in the storage bin 2. Then, the agricultural tractor is controlled to move the mounting frame 1 to the left on the tilled land, thereby moving the plow head 4 to the left to create furrows. At the same time, the corn seeds pass through the storage bin 2 into the seed metering device 3 and the replanting bin 6. The seed metering device 3 extracts two corn seeds and discharges them downwards into the plow head 4. The corn seeds then pass through the plow head 4 into the already opened furrows. The number of corn seeds falling into the furrows is detected by the infrared sensor 5. When the infrared sensor 5 detects a missed corn seed, the external air pump is controlled to inflate the air supply pipe 8. Then, the air supply pipe 8 is controlled to connect with the replanting bin. The electrically controlled valve between the two chambers 6 opens, allowing airflow to enter the replanting chamber 6 through the air supply pipe 8. At this time, there is a corn seed in the vertical groove 6001 of the replanting chamber 6. The airflow blows the corn seed in the vertical groove 6001 towards the replanting pipe 7, and then the corn seed is sprayed out from the replanting pipe 7 and falls into the opened furrow, realizing the replanting of corn seeds. Since the mounting frame 1 is in a state of continuous leftward movement, from the detection of missed sowing to the completion of replanting, the mounting frame 1 has moved a certain distance to the left. Therefore, the angle between the replanting pipe 7 and the plow head 4 is set to an acute angle, and the replanting pipe 7 is tilted to the right, so that the replanted corn seeds can be sown into the missed holes, improving the accuracy of two plants per hole. Based on this, when two seeds in a hole are pressed together, it is not conducive to the subsequent root expansion of the corn plant. Therefore, a distance is usually required between the two seeds in a hole. When the airflow carries the corn seeds past the guide plate 201, the airflow is divided into upper and lower airflows by the guide plate 201. The corn seeds are discharged from the replanting pipe 7 under the influence of the airflow on the upper side of the guide plate 201. At the same time, the airflow on the lower side of the guide plate 201 flows to the left after passing through the guide plate 201. At this time, the guide plate 201 and the replanting pipe 7 continue to move to the left under the drive of the mounting frame 1. The guide plate 201 passes the already sown corn seeds before the replanting pipe 7. Since the lower side of the guide plate 201 is in contact with the surface of the cultivated land, The airflow under the guide plate 201 blows the already sown corn seeds, causing them to move to the left, thus ensuring that there is a distance between the replanted corn seeds and the already sown corn seeds, which facilitates the expansion of the corn plant's root system. Furthermore, when the corn seeds pass through the arc-shaped part 20101, the corn seeds fly out along the tangent direction of the arc-shaped part 20101 under the drive of the airflow, and then contact the curved part 7001 of the replanting tube 7, causing the corn seeds to slide along the inner wall of the curved part 7001, and then fall back to the arc-shaped part 20101 along the tangent direction at the end of the curved part 7001, so that the replanted corn seeds fall on the right side of the guide plate 201, thereby improving the accuracy of the replanted corn seeds' falling position.

[0047] Wide-narrow row planting of corn is an important method for increasing the number of corn plants and optimizing field layout. It makes better use of natural space, increases field ventilation, and allows for more efficient photosynthesis, while also facilitating mechanized field operations. Through planting trials, we selected the following row spacing for wide-narrow row planting: 80-100cm for wide rows and 40cm for narrow rows, with a plant spacing of 15-20cm, achieving 5500-6000 plants per acre.

[0048] Soybean-corn strip intercropping 4:4 planting pattern: Corn is planted in wide and narrow rows with a width of 80cm and a width of 4cm, while soybeans are planted in wide and narrow rows with a width of 40cm and a width of 15cm.

[0049] Example 2

[0050] Based on Example 1, such as Figures 9-12 As shown, the covering system includes a first drive assembly and rollers 301; the first drive assembly is located on the lower side of the mounting frame 1; rollers 301 are mounted on the first drive assembly, and the first drive assembly drives the rollers 301 to rotate; the rollers 301 are located above the cultivated land surface; each roller 301 has a groove 30101 on its surface. When the mounting frame 1 moves to the left, the rollers 301 move to the left, thereby pushing larger soil clods on the cultivated land surface to the left, avoiding direct coverage of the seeds by larger soil clods, and leaving a gap between the grooves 30101 and the cultivated land to facilitate airflow towards the sown corn seeds.

[0051] The covering system also includes pressure bars 302; several ring-shaped pressure bars 302 are fixed to each roller 301; the pressure bars 302 are made of elastic material; the lowest point of the pressure bar 302 located on the lowest side of the roller 301 is higher than the lowest point of the plow head 4, and each pressure bar 302 is designed to protrude towards the side away from the center of the roller 301. Taking the front-to-back view as a reference, when the roller 301 rotates counterclockwise, it drives the pressure bar 302 to rotate counterclockwise, thereby contacting and squeezing larger soil clods through the pressure bars 302, realizing the breaking up of larger soil clods. The broken soil clods enter between two adjacent pressure bars 302, which facilitates the covering of corn seeds. At the same time, the unbroken soil clods are discharged from the front and rear sides of the roller 301 along the surface of the pressure bar 302, avoiding the covering of corn seeds by larger soil clods, thereby improving the survival rate of corn seedlings.

[0052] The covering system also includes a deflector plate 304; two symmetrical deflector plates 304 are fixed to each guide plate 201; each guide plate 201 has several through holes 20102. The deflector plates 304 move the loose soil on both sides of the prepared trench, causing the loose soil to move downward along the guide plate 201 to cover the sown corn seeds, avoiding direct contact between the replanted corn seeds and the sown corn seeds, thereby ensuring that the two corn seeds are independent of each other during the germination process and improving the survival rate of corn seeds.

[0053] Each guide plate 201 is equipped with a protruding rod 20103. Taking the view from front to back as a reference, when the pressure rod 302 rotates counterclockwise, the pressure rod 302 moves the protruding rod 20103, thereby causing the guide plate 201 to shake, which in turn shakes off the loose soil particles blocking the through hole 20102, ensuring normal coverage of the corn seeds.

[0054] The first drive assembly includes a first motor 303; the first motor 303 is fixedly connected to the mounting bracket 1; the output end of the first motor 303 is fixedly connected to all the rollers 301 through a pulley set, and the first motor 303 drives the rollers 301 to rotate counterclockwise with a reference from front to back.

[0055] During the mulching process of corn seeds, there are instances where the covering soil clods are large and hard, making it difficult for seedlings to grow out of the soil and thus reducing the seedling survival rate. To address this, while the mounting frame 1 moves the roller 301 to the left, using a front-to-back view as a reference, the first motor 303 controls the roller 301 to rotate counterclockwise, thereby pushing the larger soil clods to the left and preventing them from directly covering the seeds. Furthermore, because the roller 301 has grooves 30101 on its surface, a gap is left between the grooves 30101 and the cultivated land, allowing airflow to reach the sown corn seeds. Based on this, taking a front-to-back view as a reference, when roller 301 rotates counterclockwise, it drives pressure rod 302 to rotate counterclockwise. This causes pressure rod 302 to contact and compress larger soil clods, breaking them up. The broken soil clods then enter between adjacent pressure rods 302, facilitating the covering of corn seeds. Furthermore, pressure rod 302 is designed to protrude away from the center of roller 301, allowing unbroken soil clods to be discharged along the surface of pressure rod 302 from both sides of roller 301, preventing larger soil clods from covering the corn seeds and thus improving the survival rate of corn seedlings. Based on this, the loose soil on both sides of the prepared trench is moved by the lever 304, causing it to move downwards along the guide plate 201 and cover the already sown corn seeds. This prevents the replanted corn seeds from directly contacting the already sown seeds, ensuring that the two corn seeds germinate independently and improving the survival rate. At this time, the loose soil accumulates between the guide plate 201 and the lever 304. Based on this, taking a front-to-back view as a reference, when the pressure rod 302 rotates counterclockwise, the pressure rod 302 drives the loose soil between the guide plate 201 and the lever 304 to rise above the guide plate 201. This ensures that loose soil is always present on the surface of the guide plate 201. On this basis, the loose soil on the surface of the guide plate 201 falls into the lower side of the guide plate 201 through the through hole 20102, thereby covering the corn seeds on the right side of the guide plate 201. Furthermore, since loose soil particles are prone to clogging the through hole 20102, when the pressure rod 302 rotates counterclockwise, it moves the convex rod 20103, thereby causing the guide plate 201 to shake, which in turn shakes off the loose soil particles clogging the through hole 20102, ensuring normal coverage of the corn seeds.

[0056] Example 3

[0057] Based on Example 1, such as Figure 1 , Figure 13 and Figure 14As shown, it also includes an adjustment system, which includes a second drive assembly and a scraper 401; the storage compartment 2 is provided with the second drive assembly; the scraper 401 is installed on the second drive assembly, and the scraper 401 is driven to rotate by the second drive assembly. With the front-to-back view as a reference, by controlling the scraper 401 to rotate counterclockwise, the scraper 401 is made to scrape against the inner wall of the storage compartment 2, thereby causing the corn seeds adhering to the inner wall of the storage compartment 2 to detach from the storage compartment 2, thus preventing the corn seeds from adhering to the inner wall of the storage compartment 2.

[0058] The adjustment system also includes an arc-shaped block 402; several arc-shaped blocks 402 are fixed on the scraper 401. With the view from front to back as the reference, when the scraper 401 rotates counterclockwise, the arc-shaped blocks 402 divide the corn seeds in the storage bin 2 located between two adjacent seed metering devices 3 into front and rear parts, and guide the corn seeds to move towards the adjacent seed metering devices 3 respectively, so as to prevent the seeds at the bottom of the storage bin 2 from having difficulty entering the seed metering device 3 and the refill bin 6.

[0059] The second drive assembly includes a second motor 403; two symmetrical second motors 403 are fixedly connected to the storage compartment 2; the output ends of the two second motors 403 are fixedly connected to the scraper 401, and the scraper 401 is driven to rotate by the second motors 403.

[0060] Because corn seeds need to be soaked during the planting process, the water adhering to the seeds tends to flow downwards to the bottom of storage bin 2, causing the seeds to easily stick to the inner wall of storage bin 2. When there are few corn seeds remaining in storage bin 2, the seeds at the bottom of storage bin 2 have difficulty entering the seed metering device 3 and the refill bin 6. Therefore, based on a front-to-back view, the second motor 403 is controlled to drive the scraper 401 to rotate counterclockwise, causing the scraper 401 to scrape against the inner wall of storage bin 2, thereby detaching the corn seeds adhering to the inner wall of storage bin 2 from storage bin 2, thus preventing the corn seeds from sticking to the inner wall of storage bin 2. The rice seeds adhere to the inner wall of the storage bin 2. Due to the large distance between adjacent seed metering devices 3, a significant amount of corn seeds remain in the storage bin 2 between two adjacent seed metering devices 3. Therefore, when the scraper 401 rotates counterclockwise, it drives the arc-shaped block 402 to rotate counterclockwise. The arc-shaped block 402 divides the corn seeds in the storage bin 2 between two adjacent seed metering devices 3 into two parts, and guides the corn seeds to move towards the adjacent seed metering devices 3 respectively, thus preventing the seeds at the bottom of the storage bin 2 from failing to enter the seed metering device 3 and the replanting bin 6.

[0061] The method for planting corn in wide and narrow rows with two plants per hole in staggered positions includes the following steps:

[0062] S1: Soaking: Soak the corn seeds to be planted in the solution and place them in storage compartment 2.

[0063] S2: Grooving, connecting the mounting bracket 1 to the agricultural tractor, and using the agricultural tractor to drive the plow 4 to groove the cultivated land;

[0064] S3: Sowing. Two corn seeds are quantitatively extracted and discharged downward into the plow head 4 by the seed metering device 3, so that the corn seeds fall into the pre-drilled furrow.

[0065] S4: Detection. The number of corn seeds falling into the furrow is detected by infrared sensor 5. When a missed corn seed is detected, corn seeds are replanted through replanting tube 7 to improve the accuracy of two plants per hole.

[0066] S5: Covering. The loose soil on both sides of the prepared trench is moved by the lever 304, so that the loose soil moves downward along the guide plate 201 to cover the sown corn seeds, so as to avoid direct contact between the replanted corn seeds and the sown corn seeds, thereby ensuring that the two corn seeds are independent of each other during the germination process and improving the survival rate of corn seeds.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may 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 corn wide-narrow row double-plant staggered planting device, comprising a mounting frame (1), a storage bin (2), a seed metering device (3), and a plow (4); the mounting frame (1) is connected to an agricultural tractor; the mounting frame (1) is equipped with a storage bin (2); corn seeds are placed in the storage bin (2); several seed metering devices (3) are provided on the mounting frame (1); each seed metering device (3) is connected to the storage bin (2); several plows (4) are installed on the upper and lower sides of the mounting frame (1); each plow (4) is connected to the adjacent seed metering device (3); the plows (4) are inserted into the cultivated soil; characterized in that, It also includes an infrared sensor (5), a seed bin (6), a seeding pipe (7), an air supply pipe (8), and a covering system; each plowshare (4) is equipped with an infrared sensor (5) for detecting the number of corn seeds sown; each seed metering device (3) is equipped with a seed bin (6) for storing corn seeds; each seed bin (6) is equipped with a vertical groove (6001), which can only hold one corn seed; each seed bin (6) is connected to the storage bin (2); The frame (1) is equipped with several replanting pipes (7) for replanting corn seeds; the angle between the replanting pipe (7) and the plow (4) is set to an acute angle, and the replanting pipe (7) is tilted to the right; each replanting bin (6) is connected to the adjacent replanting pipe (7); an air supply pipe (8) is installed on the mounting frame (1); the air supply pipe (8) is connected to all the replanting bins (6) through an electric control valve; the air supply pipe (8) is connected to an external air pump; a covering system to improve the survival rate of corn seeds is installed on the underside of the mounting frame (1); It also includes a guide plate (201); each replanting tube (7) is fixed with a guide plate (201) to maintain the distance between two corn seeds in the same hole; the guide plate (201) is located above the cultivated land, and the lowest point of the guide plate (201) is higher than the lowest point of the plow (4); Each guide plate (201) is provided with an arc-shaped part (20101); each replanting tube (7) is provided with a curved part (7001) on its lower side; the tangent direction of the end of the curved part (7001) points to the guide plate (201). The covering system includes a first drive assembly and rollers (301); the first drive assembly is provided on the lower side of the mounting frame (1); rollers (301) are mounted on the first drive assembly, and the first drive assembly drives the rollers (301) to rotate; the rollers (301) are located above the cultivated land surface; each roller (301) has a groove (30101) on its surface. The covering system also includes pressure bars (302); several pressure bars (302) for breaking up larger clods of soil are fixed to each roller (301); the pressure bars (302) are made of elastic material; the lowest point of the pressure bar (302) located on the lowest side of the roller (301) is higher than the lowest point of the plow head (4), and each pressure bar (302) is configured to protrude toward the side away from the center of the roller (301).

2. The corn wide-narrow row double-plant staggered planting device according to claim 1, characterized in that, The covering system also includes a deflector plate (304); each guide plate (201) is fixed with several deflector plates (304) for deflecting the soil on both sides of the trench to cover the corn seeds; each guide plate (201) is provided with several through holes (20102).

3. The corn wide-narrow row double-plant staggered planting device according to claim 2, characterized in that, Each deflector (201) is provided with a protruding rod (20103).

4. The corn wide-narrow row double-plant staggered planting device according to claim 1, characterized in that, It also includes an adjustment system, which includes a second drive assembly and a scraper (401); the storage compartment (2) is provided with a second drive assembly; the second drive assembly is equipped with a scraper (401) to prevent corn seeds from sticking to the inner wall of the storage compartment (2), and the scraper (401) is driven to rotate by the second drive assembly.

5. The corn wide-narrow row double-plant staggered planting device according to claim 4, characterized in that, The adjustment system also includes an arc block (402); several arc blocks (402) are fixed on the scraper (401) to guide corn seeds into the seed meter (3) and the seed replenishment bin (6).

6. The method of planting corn in wide and narrow rows with two plants per hole in staggered positions is characterized by: This method uses the corn wide-narrow row double-plant staggered planting device as described in claim 5, and includes the following working steps: S1: Soaking, soak the corn seeds to be sown in the solution and place the corn seeds in the storage compartment (2); S2: Grooving, connecting the mounting bracket (1) to the agricultural tractor, and using the agricultural tractor to drive the plow (4) to dig a trench on the cultivated land; S3: Sowing, using the seed metering device (3) to quantitatively extract two corn seeds and discharge them downwards into the plow head (4), so that the corn seeds fall into the prepared furrow; S4: Detection, the number of corn seeds falling into the ditch is detected by infrared sensor (5). When a missed corn seed is detected, corn seeds are replanted by replanting tube (7) to improve the accuracy of two plants per hole. S5: Covering. The loose soil on both sides of the trench is moved by the lever (304) so ​​that the loose soil moves down along the guide plate (201) to cover the corn seeds that have been sown, so as to avoid direct contact between the replanted corn seeds and the sown corn seeds, thereby ensuring that the two corn seeds are independent of each other during the germination process and improving the survival rate of corn seeds.

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