Wide-narrow row one-hole double-plant staggered seeding equipment and method for corn

Abstract

The invention relates to the technical field of corn planting, in particular to wide-narrow row one-hole double-plant staggered sowing equipment and method for corn. The technical problems to be solved are as follows: during large-area continuous seeding, an existing seeding device is generally difficult to detect whether miss-seeding of corn seeds occurs, and when miss-seeding of the corn seeds occurs, reseeding cannot be performed in time, so that the seeding accuracy is reduced, and further, when covered soil blocks are relatively large and relatively hard, corn seedlings are difficult to grow from the soil blocks, and the seeding efficiency is reduced. Therefore, the survival rate of seedlings is reduced, and the corn yield is reduced. According to the technical scheme, the wide-narrow row one-hole double-plant staggered seeding equipment for corn comprises a mounting frame, a storage bin and the like, and a storage bin is mounted on the mounting frame. Seeded corn seeds are blown by airflow on the lower side of the flow guide plate to move leftwards, so that it is guaranteed that a distance is reserved between reseeded corn seeds and the seeded corn seeds, and root system expansion of corn plants is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of corn planting, and in particular to a device and a method for staggered sowing of two plants in one hole in a wide and narrow row of corn. Background Art

[0002] In the existing corn planting model, in order to reduce the planting area and increase the corn yield, a wide-narrow row one-hole two-plant planting model is adopted, that is, two corn seeds are placed in one hole. However, when sowing, the existing seeder is prone to sowing too few corn seeds, especially when sowing continuously over a large area, thus affecting the corn yield. The existing sowing device is usually difficult to detect whether corn seeds are missed, and when missed seeds occur, it is impossible to replant in time, thereby reducing the sowing accuracy. Furthermore, since the corn seeds need to be covered with soil in time, when the covering soil blocks are large and hard, it is difficult for the corn seedlings to grow out of the soil blocks, thereby reducing the survival rate of the seedlings and further reducing the corn yield. Summary of the invention

[0003] In order to overcome the shortcomings that, during continuous sowing over a large area, the existing sowing devices are usually difficult to detect whether corn seeds are missed, and when missed seeds occur, reseeding cannot be carried out in time, thereby reducing the sowing accuracy. Furthermore, when the covering soil blocks are large and hard, it is difficult for the corn seedlings to grow out of the soil blocks, thereby reducing the survival rate of the seedlings and further reducing the corn yield, the present invention provides a wide and narrow row of corn one-hole two-plant staggered sowing device and method.

[0004] The technical solution is: a wide and narrow row of corn one hole with two plants staggered sowing equipment, including a mounting frame, a storage bin, a seeding device and a plowshare; the mounting frame is connected to an agricultural tractor; a storage bin is installed on the mounting frame; corn seeds are placed in the storage bin; a plurality of seeding devices are arranged on the mounting frame; each seeding device is connected to the storage bin; a plurality of plowshares are installed on the upper and lower sides of the mounting frame; each plowshare is connected to the adjacent seeding devices; the plowshare is inserted into the cultivated soil; it also includes an infrared sensor, a seeding bin, a seeding pipe, an air pipe and a covering system; each plowshare is provided with an infrared sensor for detecting the number of corn seeds sown. sensor; each seed meter is equipped with a seeding bin for storing corn seeds; each seeding bin is provided with a vertical slot, in which only one corn seed can be stored; each seeding bin is connected with the storage bin; a number of seeding tubes for seeding corn seeds are arranged on the lower side of the mounting frame; the angle between the seeding tube and the plowshare is set to an acute angle, and the seeding tube is inclined to the right; each seeding bin is connected with the adjacent seeding tube; an air pipe is installed on the mounting frame; the air pipe is connected with all the seeding bins through an electric control valve; the air pipe is connected with an external air pump; a covering system for improving the survival rate of corn seeds is installed on the lower side of the mounting frame.

[0005] As a further preferred embodiment, a guide plate is also included; each reseeding tube is fixedly connected with a guide plate for maintaining a distance between two corn seeds in the same hole; the guide plate is located above the cultivated land, and the lowest point of the guide plate is higher than the lowest point of the plowshare.

[0006] As a further preferred solution, each guide plate is provided with an arc portion; each reseeding tube is provided with a curved arc portion on the lower side; and the tangent direction of the end of the curved arc portion points to the guide plate.

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

[0008] As a further preferred solution, the covering system also includes a pressure rod; each roller is fixed with a plurality of pressure rods for breaking up larger clods of soil; the pressure rods are made of elastic material; the lowest point of the pressure rod located at the lowermost side of the roller is higher than the lowest point of the plowshare, and each pressure rod is configured to protrude toward a side away from the center of the roller.

[0009] As a further preferred solution, the covering system also includes a paddle plate; each guide plate is fixed with a plurality of paddle plates for moving the soil on both sides of the groove to cover the corn seeds; each guide plate is provided with a plurality of through holes.

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

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

[0012] As a further preferred solution, the adjustment system also includes an arc block; a plurality of arc blocks for guiding corn seeds into the seed metering device and the seed supplement bin are fixedly connected to the scraper.

[0013] The method of staggered sowing of two plants in one hole in wide and narrow rows of corn includes the following steps:

[0014] S1: soaking, soaking the corn seeds to be sown with medicine, and placing the corn seeds in a storage bin;

[0015] S2: Grooving, connecting the mounting frame to an agricultural tractor, and driving the plowshare to make grooves on the cultivated land by the agricultural tractor;

[0016] S3: sowing, two corn seeds are quantitatively drawn and discharged downward into the plowshare through the seed meter, so that the corn seeds fall into the opened grooves;

[0017] S4: Detection, using an infrared sensor to detect the number of corn seeds falling into the groove. When it is detected that corn seeds are missed, the corn seeds are replanted through a replanting tube to improve the accuracy of planting two plants in one hole;

[0018] S5: Covering: The loose soil on both sides of the trench is moved by the paddle to move downward along the guide plate to cover the sown corn seeds, thereby 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 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 reseeding tube continue to move to the left under the drive of the mounting frame, the airflow under the guide plate blows the sown corn seeds to move to the left, thereby ensuring that there is a distance between the reseeded corn seeds and the sown corn seeds, which is convenient for the root system of the corn plant to expand.

[0021] When the mounting frame moves to the left, the roller moves to the left, thereby pushing the larger soil block to the left, so as to prevent the larger soil block from directly covering the seeds, and at the same time leaving a gap between the groove and the cultivated land, so that the airflow can blow to the sown corn seeds;

[0022] When the roller rotates counterclockwise, the pressure rod is driven to rotate counterclockwise, so that the pressure rod contacts and squeezes the larger soil blocks, thereby breaking up the larger soil blocks, and the broken soil blocks enter between two adjacent pressure rods, so that the soil covers the corn seeds.

[0023] The loose soil on both sides of the grooves that have been opened is moved by the paddle plate, so that the loose soil moves downward along the guide plate to cover the sown corn seeds, thereby 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, improving the survival rate of the corn seeds, and the loose soil between the guide plate and the paddle plate is lifted above the guide plate by the pressure rod, thereby ensuring that the loose soil is always retained on the surface of the guide plate;

[0024] The rotation of the scraper is controlled so that the scraper is in contact with the inner wall of the storage bin and scrapes, thereby separating the corn seeds adhering to the inner wall of the storage bin from the storage bin, thereby preventing the corn seeds from adhering to the inner wall of the storage bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the wide and narrow row one-hole two-plant staggered sowing equipment for corn of the present invention;

[0026] Figure 2 It 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 a mounting frame and a storage bin of the present invention;

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

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the combined reseeding bin and reseeding tube of the present invention;

[0030] Figure 6 It is a combined cross-sectional view of the reseeding bin and the reseeding tube of the present invention;

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

[0032] Figure 8 For the present invention Figure 6 A magnified image of the area at B in the middle;

[0033] Fig. 9 It is a schematic diagram of the three-dimensional structure of the covering system of the present invention;

[0034] Fig.10 It is a schematic diagram of a partial three-dimensional structure of the covering system of the present invention;

[0035] Fig.11 It is a schematic diagram of the three-dimensional structure of the roller and pressure rod combination of the present invention;

[0036] Fig.12 It is a schematic diagram of the combined three-dimensional structure of the guide plate and the paddle plate of the present invention;

[0037] Fig.13 It is a schematic diagram of the three-dimensional structure of the regulating system of the present invention;

[0038] Fig.14 It is a top view of the adjustment system of the present invention.

[0039] The numbers in the figure are as follows: 1-mounting frame, 2-storage bin, 3-seeder, 4-plowshare, 5-infrared sensor, 6-reseeding bin, 6001-vertical slot, 7-reseeding tube, 7001-bend portion, 8-air pipe, 201-guide plate, 20101-arc portion, 20102-through hole, 20103-convex rod, 301-roller, 30101-groove, 302-pressure rod, 303-first motor, 304-paddle, 401-scraper, 402-arc block, 403-second motor. DETAILED DESCRIPTION

[0040] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0041] Example 1

[0042] like Figure 2-Figure 8 As shown, the corn wide-narrow row one-hole double-plant staggered sowing device comprises a mounting frame 1, a storage bin 2, a seeding device 3 and a plowshare 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 seeding devices 3 are arranged on the mounting frame 1; each seeding device 3 is connected to the storage bin 2; five plowshares 4 are mounted on the upper and lower sides of the mounting frame 1; each plowshare 4 is connected to an adjacent seeding device 3; the plowshare 4 is inserted into the soil of the cultivated land;

[0043] It also includes an infrared sensor 5, a reseeding bin 6, a reseeding pipe 7, an air pipe 8 and a covering system; each plowshare 4 is provided with an infrared sensor 5; each seed meter 3 is installed with a reseeding bin 6; each reseeding bin 6 is provided with a vertical slot 6001, and only one corn seed can be stored in the vertical slot 6001; each reseeding bin 6 is connected with the storage bin 2; five reseeding pipes 7 are arranged on the lower side of the mounting frame 1; the angle between the reseeding pipe 7 and the plowshare 4 is set to an acute angle, and the reseeding pipe 7 is inclined to the right; each reseeding bin 6 is connected with the adjacent reseeding pipe 7; an air pipe 8 is installed on the mounting frame 1; the air pipe 8 is connected with all the reseeding bins 6 through an electric control valve; the air pipe 8 is connected to an external air pump. When the infrared sensor 5 detects that corn seeds are missed, the air is inflated into the air pipe 8 by controlling the external air pump, and then the electric control valve between the air pipe 8 and the replanting bin 6 is controlled to open, so that the air flow enters the replanting bin 6 from the air pipe 8. At this time, there is a corn seed in the vertical groove 6001 of the replanting bin 6. The corn seed in the vertical groove 6001 is blown into the replanting pipe 7 by the air flow, and then the corn seed is ejected from the replanting pipe 7 and falls into the opened soil groove, thereby realizing the replanting of the corn seeds. A covering system is installed on the lower side of the mounting frame 1, and larger soil blocks are broken up by the covering system to ensure that the corn seeds are normally covered with soil and the survival rate of the corn seeds is improved.

[0044] It also includes a guide plate 201; each reseeding tube 7 is fixedly connected to a guide plate 201; 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 plowshare 4, and the airflow is divided into two upper and lower airflows by the guide plate 201. When the guide plate 201 and the reseeding tube 7 continue to move to the left driven by the mounting frame 1, the airflow on the lower side of the guide plate 201 blows the sown corn seeds to move to the left, thereby ensuring that a distance is left between the reseeded corn seeds and the sown corn seeds, which is convenient for the root expansion of the corn plants.

[0045] An arc portion 20101 is provided on each guide plate 201; a curved portion 7001 is provided on the lower side of each reseeding tube 7; the tangent direction of the end of the curved portion 7001 points to the guide plate 201. When the corn seeds pass through the arc portion 20101, the corn seeds fly out along the tangent direction of the arc portion 20101 driven by the airflow, and then contact the curved portion 7001 of the reseeding tube 7, so that the corn seeds slide along the inner wall of the curved portion 7001, and then fall to the curved portion 20101 again along the tangent direction of the end of the curved portion 7001, so that the reseeded corn seeds fall on the right side of the guide plate 201, thereby improving the accuracy of the falling position of the reseeded corn seeds.

[0046] When sowing corn seeds, first hang the mounting frame 1 on the agricultural tractor, and pile the corn seeds in the storage bin 2, then control the agricultural tractor to drive the mounting frame 1 to move left on the cultivated land, thereby driving the plowshare 4 to move left, so as to realize trenching on the cultivated land. At the same time, the corn seeds enter the seed meter 3 and the reseeding bin 6 respectively through the storage bin 2, and the seed meter 3 extracts two corn seeds in a quantitative manner and discharges them downward into the plowshare 4. The corn enters the opened trench through the plowshare 4, and the number of corn seeds falling into the trench is detected by the infrared sensor 5. When the infrared sensor 5 detects that the corn seeds are missed, the air supply pipe 8 is inflated by controlling the external air pump, and then the air supply pipe 8 and the reseeding bin 6 are controlled. The electric control valve between the bins 6 is opened, allowing the air flow to enter the replanting bin 6 from the air pipe 8. At this time, there is a corn seed in the vertical slot 6001 of the replanting bin 6. The corn seed in the vertical slot 6001 is blown into the replanting tube 7 by the air flow, and then the corn seed is ejected from the replanting tube 7 and falls into the opened groove, thereby realizing the replanting of the corn seed. Since the mounting frame 1 is in a state of continuous movement to the left, the mounting frame 1 has moved a distance to the left from the time when the missed seeding is detected to the completion of the replanting. For this reason, the angle between the replanting tube 7 and the plowshare 4 is set to an acute angle, and the replanting tube 7 is tilted to the right, so that the replanted corn seeds can be sown into the missed holes, thereby improving the accuracy rate of two plants in one hole. On this basis, when the two seeds in a hole are in contact with each other, it is not conducive to the subsequent root expansion of the corn plant. For this reason, a distance is usually required between the two seeds in a hole. When the airflow drives the corn seeds through the guide plate 201, the airflow is divided into two upper and lower airflows by the guide plate 201. The corn seeds are discharged from the reseeding tube 7 driven by the airflow located on the upper side of the guide plate 201. At the same time, the airflow located 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 reseeding tube 7 continue to move to the left driven by the mounting frame 1. The guide plate 201 passes through the sown corn seeds before the reseeding tube 7. Since the lower side of the guide plate 201 is in contact with the surface of the cultivated land The airflow on the lower side of the guide plate 201 blows the sown corn seeds to the left, thereby ensuring that there is a distance between the replanted corn seeds and the sown corn seeds, which is convenient for the root expansion of the corn plant. Furthermore, when the corn seeds pass through the arc portion 20101, the corn seeds fly out along the tangent direction of the arc portion 20101 driven by the airflow, and then contact the curved portion 7001 of the replanting tube 7, so that the corn seeds slide along the inner wall of the curved portion 7001, and then fall to the curved portion 20101 again along the tangent direction of the end of the curved portion 7001, so that the replanted corn seeds fall on the right side of the guide plate 201, thereby improving the accuracy of the falling position of the replanted corn seeds.

[0047] Corn wide and narrow row planting is an important means to increase the reasonable field layout after the corn trees are planted. It can make rational use of natural space, increase field permeability, make corn photosynthesis more sufficient, and facilitate field machinery operations. After planting experiments, we chose the wide and narrow row planting spacing of corn: 80-100cm for wide rows and 40cm for narrow rows, and the plant spacing is 15cm-20cm, which can achieve 5500-6000 plants per mu.

[0048] Soybean and corn strip composite planting 4:4 planting pattern: corn wide and narrow row planting, corn row width is 80cm and narrow row is 4cm, soybean wide and narrow row planting, soybean row width is 40cm and narrow row is 15cm.

[0049] Example 2

[0050] On the basis of Example 1, Figure 9-12 As shown, the covering system includes a first driving component and a roller 301; the first driving component is arranged on the lower side of the mounting frame 1; the roller 301 is installed on the first driving component, and the roller 301 is driven to rotate by the first driving component; the roller 301 is located above the surface of the cultivated land; each roller 301 has a groove 30101 on its surface, and when the mounting frame 1 moves to the left, the roller 301 moves to the left, thereby pushing larger soil blocks on the surface of the cultivated land to move to the left, preventing larger soil blocks from directly covering the seeds, and leaving a gap between the groove 30101 and the cultivated land, so that the airflow can blow to the sown corn seeds.

[0051] The covering system also includes a pressure rod 302; each roller 301 is fixedly connected with a plurality of pressure rods 302 arranged in a ring; the pressure rods 302 are made of elastic material; the lowest point of the pressure rod 302 located at the lowermost side of the roller 301 is higher than the lowest point of the plowshare 4, and each pressure rod 302 is arranged to protrude toward a side away from the center of the roller 301. When viewed from front to back, when the roller 301 rotates counterclockwise, the pressure rod 302 is driven to rotate counterclockwise, so that the pressure rod 302 contacts and squeezes larger soil clods, thereby breaking up the larger soil clods. The broken soil clods enter between two adjacent pressure rods 302, thereby facilitating the covering of corn seeds, and at the same time, the soil clods that have not been broken up are discharged from the front and rear sides of the roller 301 along the surface of the pressure rod 302, thereby preventing larger soil clods from covering the corn seeds, thereby improving the survival rate of the corn seedlings.

[0052] The covering system also includes a paddle plate 304; each guide plate 201 is fixedly connected to two front-to-back symmetrical paddle plates 304; each guide plate 201 is provided with a plurality of through holes 20102, and the paddle plates 304 are used to paddle the loose soil on both sides of the opened grooves, so that the loose soil moves downward along the guide plate 201 to cover the sown corn seeds, thereby 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 the corn seeds.

[0053] Each guide plate 201 is provided with a protruding rod 20103. When viewed from the front to the back, when the pressure rod 302 rotates counterclockwise, the pressure rod 302 moves the protruding rod 20103, thereby driving the guide plate 201 to shake, thereby shaking off the loose soil particles blocking the through hole 20102, thereby ensuring normal coverage of the corn seeds.

[0054] The first driving assembly includes a first motor 303; the first motor 303 is fixedly connected to the mounting frame 1; the output end of the first motor 303 is fixedly connected to all the rollers 301 through a pulley group, and the rollers 301 are driven to rotate counterclockwise by the first motor 303 when viewed from front to back.

[0055] In the process of covering corn seeds, there are cases where the covering soil blocks are large and hard, which makes it difficult for the seedlings to grow from the soil blocks, thereby reducing the survival rate of the seedlings. For this reason, while the mounting frame 1 drives the roller 301 to move to the left, the first motor 303 is controlled to drive the roller 301 to rotate counterclockwise based on the view from front to back, thereby pushing the larger soil blocks to move to the left, avoiding the larger soil blocks from directly covering the seeds. In addition, since the surface of the roller 301 is provided with a groove 30101, a gap is left between the groove 30101 and the cultivated land, which is convenient for airflow to blow to the sown corn seeds. On this basis, with the view from the front to the back as the reference, when the roller 301 rotates counterclockwise, the pressure rod 302 is driven to rotate counterclockwise, so that the pressure rod 302 contacts and squeezes the larger soil clods, thereby breaking up the larger soil clods, and the broken soil clods enter between two adjacent pressure rods 302, thereby facilitating the covering of corn seeds. Furthermore, the pressure rod 302 is configured to bulge away from the center side of the roller 301, so that the unbroken soil clods are discharged from the front and rear sides of the roller 301 along the surface of the pressure rod 302, avoiding the larger soil clods covering the corn seeds, thereby improving the survival rate of the corn seedlings. On this basis, the loose soil on both sides of the opened groove is moved by the paddle plate 304, so that the loose soil moves downward along the guide plate 201 to cover the sown corn seeds, thereby 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 the corn seeds. At this time, the loose soil accumulates between the guide plate 201 and the paddle plate 304. On this basis, based on the view from front to back, when the pressure rod 302 rotates counterclockwise, the loose soil between the guide plate 201 and the paddle plate 304 is driven by the pressure rod 302 to rise above 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 the loose soil particles are easy to block the through hole 20102, when the pressure rod 302 is rotated counterclockwise, the convex rod 20103 is pushed by the pressure rod 302, thereby driving the guide plate 201 to shake, and then the loose soil particles blocking the through hole 20102 are shaken off, thereby ensuring normal coverage of the corn seeds.

[0056] Example 3

[0057] On the basis of Example 1, Figure 1 , Fig.13 and Fig.14As shown, an adjustment system is also included, and the adjustment system includes a second drive component and a scraper 401; a second drive component is provided on the storage bin 2; a scraper 401 is installed on the second drive component, and the scraper 401 is driven to rotate by the second drive component. Based on the view from front to back, the scraper 401 is controlled to rotate counterclockwise, so that the scraper 401 is in contact with the inner wall of the storage bin 2 and scrapes, so that the corn seeds stuck to the inner wall of the storage bin 2 are separated from the storage bin 2, thereby preventing the corn seeds from sticking to the inner wall of the storage bin 2.

[0058] The adjustment system also includes an arc block 402; a plurality of arc blocks 402 are fixedly connected to the scraper 401. When the scraper 401 rotates counterclockwise, the corn seeds between two adjacent seeding devices 3 in the storage bin 2 are divided into two parts, front and rear, by the arc block 402, and the corn seeds are guided to move toward the adjacent seeding devices 3, respectively, to prevent the seeds at the bottom of the storage bin 2 from being difficult to enter the seeding device 3 and the reseeding bin 6.

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

[0060] Since corn seeds need to be soaked during the sowing process, the moisture attached between the corn seeds tends to flow downward to the bottom of the storage bin 2, causing the corn seeds to easily stick to the inner wall of the storage bin 2. When there are fewer corn seeds remaining in the storage bin 2, it is difficult for the seeds at the bottom of the storage bin 2 to enter the seed meter 3 and the reseeding bin 6. Therefore, based on the view from front to back, the second motor 403 is controlled to drive the scraper 401 to rotate counterclockwise, so that the scraper 401 is in contact with the inner wall of the storage bin 2 and scrapes, so that the corn seeds stuck to the inner wall of the storage bin 2 are separated from the storage bin 2, thereby avoiding corn. The rice seeds are attached to the inner wall of the storage bin 2. On this basis, due to the large distance between adjacent seed-metering devices 3, there are more corn seeds remaining between two adjacent seed-metering devices 3 in the storage bin 2. For this reason, when the scraper 401 rotates counterclockwise, the scraper 401 drives the arc block 402 to rotate counterclockwise, and the corn seeds between two adjacent seed-metering devices 3 in the storage bin 2 are divided into two parts, front and back, by the arc block 402, and the corn seeds are guided to move toward the adjacent seed-metering devices 3, respectively, to prevent the seeds at the bottom of the storage bin 2 from being difficult to enter the seed-metering device 3 and the reseeding bin 6.

[0061] The method of staggered sowing of two plants in one hole in wide and narrow rows of corn includes the following steps:

[0062] S1: soaking, soaking the corn seeds to be sown with medicine, and placing the corn seeds in the storage bin 2;

[0063] S2: Grooving, connecting the mounting frame 1 to the agricultural tractor, and driving the plowshare 4 to make grooves on the cultivated land by the agricultural tractor;

[0064] S3: sowing, two corn seeds are quantitatively extracted by the seed meter 3 and discharged downward into the plowshare 4, so that the corn seeds fall into the opened grooves;

[0065] S4: Detection, the number of corn seeds falling into the groove is detected by the infrared sensor 5. When it is detected that corn seeds are missed, the corn seeds are replanted through the replanting tube 7 to improve the accuracy of planting two plants in one hole;

[0066] S5: Covering, the loose soil on both sides of the trench is moved by the plate 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 the corn seeds.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes 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 one-hole two-plant staggered sowing device, comprising a mounting frame (1), a storage bin (2), a seeding device (3) and a plowshare (4); the mounting frame (1) is connected to an agricultural tractor; a storage bin (2) is mounted on the mounting frame (1); corn seeds are placed in the storage bin (2); a plurality of seeding devices (3) are arranged on the mounting frame (1); each seeding device (3) is connected to the storage bin (2); a plurality of plowshares (4) are mounted on the upper and lower sides of the mounting frame (1); each plowshare (4) is connected to an adjacent seeding device (3); the plowshare (4) is inserted into the soil of a cultivated land; the device is characterized in that: The invention also includes an infrared sensor (5), a seeding bin (6), a seeding pipe (7), an air pipe (8) and a covering system; each plowshare (4) is provided with an infrared sensor (5) for detecting the number of corn seeds sown; each seed meter (3) is provided with a seeding bin (6) for storing corn seeds; each seeding bin (6) is provided with a vertical slot (6001) in which only one corn seed can be stored; each seeding bin (6) is connected to the storage bin (2); A plurality of replanting tubes (7) for replanting corn seeds are arranged on the lower side of the frame (1); the angle between the replanting tube (7) and the plowshare (4) is set to be an acute angle, and the replanting tube (7) is inclined to the right; each replanting bin (6) is connected to an adjacent replanting tube (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; and a covering system for improving the survival rate of corn seeds is installed on the lower side of the mounting frame (1).

2. The corn wide and narrow row one hole two-plant staggered sowing equipment according to claim 1 is characterized in that: The invention also comprises a guide plate (201); each reseeding tube (7) is fixedly connected with a guide plate (201) for maintaining a 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 plowshare (4).

3. The corn wide and narrow row one hole two-plant staggered sowing equipment according to claim 2 is characterized in that: Each guide plate (201) is provided with an arc portion (20101); each reseeding tube (7) is provided with a curved arc portion (7001) on its lower side; and the tangent direction of the end of the curved arc portion (7001) points to the guide plate (201).

4. The corn wide and narrow row one hole two-plant staggered sowing equipment according to claim 1 is characterized in that: The covering system comprises a first driving component and a roller (301); the first driving component is arranged on the lower side of the mounting frame (1); the roller (301) is mounted on the first driving component, and the roller (301) is driven to rotate by the first driving component; the roller (301) is located above the surface of the cultivated land; and a groove (30101) is provided on the surface of each roller (301).

5. The corn wide and narrow row one hole two-plant staggered sowing equipment according to claim 4 is characterized in that: The covering system further comprises a pressure rod (302); each roller (301) is fixedly connected with a plurality of pressure rods (302) for breaking up larger soil clods; the pressure rods (302) are made of elastic material; the lowest point of the pressure rod (302) located at the lowermost side of the roller (301) is higher than the lowest point of the plowshare (4), and each pressure rod (302) is arranged to bulge towards a side away from the center of the roller (301).

6. The corn wide and narrow row one hole two-plant staggered sowing equipment according to claim 3 is characterized in that: The covering system also includes a paddle (304); each guide plate (201) is fixedly connected with a plurality of paddles (304) for moving the soil on both sides of the groove to cover the corn seeds; each guide plate (201) is provided with a plurality of through holes (20102).

7. The corn wide and narrow row one hole two-plant staggered sowing equipment according to claim 6 is characterized in that: Each guide plate (201) is provided with a protruding rod (20103).

8. The corn wide and narrow row one hole two-plant staggered sowing equipment according to claim 1 is characterized in that: The invention also comprises an adjustment system, which comprises a second drive assembly and a scraper (401); the second drive assembly is arranged on the storage bin (2); the scraper (401) is installed on the second drive assembly to prevent corn seeds from sticking to the inner wall of the storage bin (2); the scraper (401) is driven to rotate by the second drive assembly.

9. The corn wide and narrow row one hole two-plant staggered sowing equipment according to claim 8 is characterized in that: The adjustment system also includes an arc-shaped block (402); a plurality of arc-shaped blocks (402) are fixedly connected to the scraper (401) for guiding corn seeds into the seed metering device (3) and the seed supplement bin (6).

10. A method for staggered sowing of two corn plants in one hole in wide and narrow rows, characterized by: The operation method uses the corn wide and narrow row one hole two-plant staggered sowing device according to claim 9, and comprises the following working steps: S1: soaking, soaking the corn seeds to be sown with medicine, and placing the corn seeds in a storage bin (2); S2: Grooving, connecting the mounting frame (1) to an agricultural tractor, and driving the plowshare (4) through the agricultural tractor to dig a groove on the cultivated land; S3: sowing, two corn seeds are quantitatively extracted by the seed meter (3) and discharged downward into the plowshare (4), so that the corn seeds fall into the grooves that have been opened; S4: Detection, using an infrared sensor (5) to detect the number of corn seeds that have fallen into the groove. When it is detected that corn seeds have been missed, the corn seeds are replanted through a replanting tube (7), thereby improving the accuracy rate of planting two plants in one hole; S5: Covering, using the plate (304) to move the loose soil on both sides of the groove, so that the loose soil moves downward along the guide plate (201) to cover the sown corn seeds, thereby preventing the replanted corn seeds from directly contacting 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 the corn seeds.

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