An automated adjustment agricultural seeder

Abstract

The application relates to the field of agricultural planting technology, in particular to an automatic adjustment type agricultural seeding machine, which comprises a vehicle frame, a driving assembly, a first fixing frame, a first soil loosener and the like; the vehicle frame is connected with the driving assembly; the driving assembly is connected with the first fixing frame; the first fixing frame is provided with the first soil loosener used for loosening dry sand soil on the front side. In the process of loosening the sand soil, the application simultaneously sows seeds into the sand soil and covers the wet sand soil under the sand soil on the upside of the dry sand soil, so that the operation of covering the dry sand soil by using extra machinery is reduced, and the efficiency of planting crops in the sand soil is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting, and in particular to an automatic adjustment type agricultural seeder. Background Art

[0002] The upper layer of sandy soil is usually drier. Therefore, in the existing process of planting crops on sandy soil, after sowing on the sandy soil, it is usually necessary to spray water on the surface of the sandy soil and then cover the surface of the sandy soil with a layer of moist sand to protect the fertilizer in the sandy soil, inhibit the growth of weeds, and protect the seeds from wind and bird feed. However, when planting on a large scale, it is usually necessary to replace different machines and drive them repeatedly on the cultivated land, so the crop planting efficiency is low. In addition, since the water in the sandy soil easily evaporates into the air, the water content in the sandy soil is insufficient, which is not conducive to the normal growth of crops. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing practice of covering the surface of sandy soil with a layer of moist sandy soil after sowing in sandy soil, and the need to replace different machines and repeatedly drive on the cultivated land when planting on a large scale, resulting in low crop planting efficiency, and the lack of water content in the sandy soil due to the easy evaporation of water into the air, which prevents the normal growth of crops, the present invention provides an automatic adjustment type agricultural seeder.

[0004] The technical solution is: an automated adjustable agricultural seeder, comprising a vehicle frame; a drive assembly, a first fixed frame, a first loosener, a first electric transmission belt, a sand conveyor, a second fixed frame, a second loosener, a second electric transmission belt, a soil conveying plate, a sowing assembly, a sprinkler system and an extrusion system; the vehicle frame is connected to the drive assembly; the drive assembly is connected to the first fixed frame; the first loosener for loosening dry sand is installed on the front side of the first fixed frame; the first electric transmission belt is provided on the first fixed frame; the sand conveyor is installed on the rear side of the first fixed frame; a plurality of partitions are provided on the lower side of the sand conveyor; the plurality of partitions divide the lower end of the sand conveyor into a plurality of sand outlets; the drive assembly is connected to the second fixed frame The second fixed frame is located below the first fixed frame; the first fixed frame and the second fixed frame are driven to move up and down by the driving assembly; a second loosening device for loosening moist sand is provided on the front side of the second fixed frame; a second electric transmission belt is provided on the second fixed frame; a soil conveying plate is connected to the rear side of the second fixed frame; the rear side of the soil conveying plate is provided with a V-shaped inclined surface; the first loosening device is located in front of the second loosening device, and the soil conveying plate protrudes backward from the rear side of the sand conveyor; a number of plow hooks are provided on the first loosening device and the second loosening device; a sowing assembly for sowing sandy soil is connected to the frame; a sprinkler system for increasing the moisture content of dry sand is connected to the frame; and a squeezing system for preventing dry sand from dispersing is connected to the sand conveyor.

[0005] Furthermore, it also includes a third motor and a screw rod; a third motor is fixedly connected to the second fixing frame; a screw rod is fixedly connected to the output shaft of the third motor; the spiral direction of the left side of the screw rod is opposite to that of the right side; the screw rod is located above the soil transport plate.

[0006] Furthermore, the sowing component includes a seed bin, a delivery pipe, an electric-controlled valve, an air pump and a connecting pipe; a seed bin is fixedly connected to the frame; seeds are stored and transported in the seed bin; a number of delivery pipes are connected to the lower side of the seed bin; the inner diameter of the delivery pipe can only pass one seed; the lower end of each delivery pipe is connected to the adjacent sand outlet; each delivery pipe is connected to an electric-controlled valve; each electric-controlled valve is connected to the adjacent delivery pipe by a connecting pipe; an air pump is fixedly connected to the upper side of the frame; the air pump is connected to all the connecting pipes through an air hose.

[0007] Furthermore, the sprinkler system includes a water tank and a water pipe; the water tank is fixedly connected to the vehicle frame; the water pipe for sprinkling water on the dry sand is fixedly connected to the first fixed frame, the water pipe is connected to the water tank through a connecting pipe, and a micro water pump is provided at the connection point between the water pipe and the water tank; the water pipe is located above the first electric transmission belt; and a plurality of water holes are opened on the lower side of the water pipe.

[0008] Furthermore, the sprinkler system also includes a scraper; the scraper for leveling the dry sand is fixedly connected to the first fixed frame; a through groove is opened in the middle of the scraper, and the through groove is located directly below the water pipe.

[0009] Furthermore, the sprinkler system also includes vertical pipes; a plurality of vertical pipes are fixedly connected to the lower side of the scraper, and the upper openings of the vertical pipes are connected to the through grooves; each vertical pipe is provided with a plurality of through holes for improving the wetting efficiency of dry sand.

[0010] Furthermore, a filter cloth is provided at the through hole.

[0011] Furthermore, a guide surface is provided on the first fixing frame.

[0012] Furthermore, the extrusion system includes a driving member, a fixed plate, a fixed frame and a pressure plate; a fixed plate is slidably connected to the upper and lower sides of the sand conveyor; a number of driving members are fixedly connected between each fixed plate and the sand conveyor; the fixed plate is driven up and down by the driving member; a number of fixed frames are fixed on each fixed plate to prevent seeds from deviating from the groove when falling, and each fixed frame is located in an adjacent sand outlet; a pressure plate is connected to each fixed frame through a spring to prevent dry sand from dispersing when falling into the groove; each conveying pipe passes through an adjacent fixed frame and pressure plate.

[0013] Furthermore, the bottom of the delivery pipe is flush with the lower side of the adjacent fixing frame.

[0014] Beneficial effects of the present invention:

[0015] During the process of loosening the sandy soil, seeds are sown into the sandy soil at the same time, and the moist sandy soil under the sandy soil is covered to the upper side of the dry sandy soil at the same time, eliminating the need for additional machinery to cover the dry sandy soil, thereby improving the efficiency of planting crops in sandy soil;

[0016] The dry sand is sprinkled with water through a water pipe, and then the moistened dry sand falls to the surface through a sand conveyor. The moistened dry sand is then immediately covered by the moistened sand falling from the soil conveyor plate, thereby preventing the moistened dry sand from being directly exposed to the air, reducing the loss of water in the moistened dry sand, ensuring the water content in the sand, and facilitating the development of seeds.

[0017] When the dry sand is moistened, the sand moves to the right along with the first electric transmission belt, and the left and right edges of the sand contact the guide surfaces respectively. As the sand continues to move to the right, the distance between the two guide surfaces gradually decreases, so that the sand is squeezed against each other, making the sand tightly connected, and reducing the loss of water inside the sand;

[0018] When the delivery tube is inserted into the sand mass, since the bottom of the delivery tube is flush with the lower side of the adjacent fixed frame, when the seeds fall into the sand mass, the seeds are located in the center of the sand mass, so that the depth of the seeds in the grooves on the surface is basically consistent. At this time, the seeds are at the optimal planting depth, avoiding the situation where some seeds are planted too deep or too shallow, thereby improving the survival rate of the seeds;

[0019] By squeezing the two pressure plates, the sand in the sand ball is aggregated together to make the sand ball denser, thus preventing the sand ball from dispersing when it falls into the surface groove, causing the seeds to be in the upper layer of the sand ball, which in turn may easily lead to the problem of too shallow planting depth of the seeds, ensuring that the planting depth of the seeds is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the automatic adjustment type agricultural seeder of the present invention;

[0021] Figure 2 A side view of the automatic adjustment agricultural seeder of the present invention;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the vehicle frame, the first fixing frame and the second fixing frame combined in the present invention;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the vehicle frame, sand conveyor and sowing assembly combined in the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the sprinkler system of the present invention;

[0025] Figure 6 For the present invention Figure 5 A magnified view of point A in the figure;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the extrusion system of the present invention;

[0027] Figure 8 This is a combined sectional view of the sand conveyor, fixing plate and fixing frame of the present invention.

[0028] Figure numbers: 1-frame, 2-first fixed frame, 2001-guide surface, 3-first ripper, 4-first electric transmission belt, 5-sand conveyor, 5001-partition, 5002-sand outlet, 6-second fixed frame, 7-second ripper, 8-second electric transmission belt, 9-soil conveyor plate, 9001-V-shaped inclined plane, 201-first motor, 202-first screw rod, 203-second motor, 204 -Second screw, 205-third motor, 206-screw rod, 301-seed bin, 302-delivery pipe, 303-electrically controlled valve, 304-air pump, 305-connecting pipe, 401-water tank, 402-water delivery pipe, 403-scraper, 40301-through groove, 404-vertical pipe, 40401-through hole, 501-driving part, 502-fixed plate, 503-fixed frame, 504-pressing plate. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings. Example 1

[0030] like Figures 1-6 As shown, an automatic adjustment type agricultural seeder includes a frame 1;

[0031] It also includes a drive assembly, a first fixed frame 2, a first tiller 3, a first electric transmission belt 4, a sand conveyor 5, a second fixed frame 6, a second tiller 7, a second electric transmission belt 8, a soil conveyor plate 9, a sowing assembly, a sprinkler system and an extrusion system; the frame 1 is connected to the drive assembly; the drive assembly is connected to the first fixed frame 2; the first tiller 3 is installed on the front side of the first fixed frame 2; the first electric transmission belt 4 is provided on the first fixed frame 2; the sand conveyor 5 is installed on the rear side of the first fixed frame 2; three partitions 5001 are provided on the lower side of the sand conveyor 5; the three partitions 5001 divide the lower end of the sand conveyor 5 into four sand outlets 5002 ... the first fixed frame 2 Two fixing frames 6, the second fixing frame 6 is located below the first fixing frame 2; the first fixing frame 2 and the second fixing frame 6 are driven to move up and down by the driving assembly; a second ripper 7 is provided on the front side of the second fixing frame 6; a second electric transmission belt 8 is provided on the second fixing frame 6; a soil conveying plate 9 is connected to the rear side of the second fixing frame 6; the rear side of the soil conveying plate 9 is provided with a V-shaped inclined surface 9001; the first ripper 3 is located in front of the second ripper 7, and the soil conveying plate 9 protrudes backward from the rear side of the sand conveyor 5; a number of plow hooks are provided on the first ripper 3 and the second ripper 7; a sowing assembly is connected to the frame 1; a sprinkler system is connected to the frame 1; and an extrusion system is connected to the sand conveyor 5.

[0032] The driving assembly includes a first motor 201, a first screw rod 202, a second motor 203 and a second screw rod 204; two left-right symmetrical first motors 201 are fixed to the first fixed frame 2; a first screw rod 202 is fixed to the output shaft of each first motor 201; the two first screw rods 202 are rotatably connected to the first fixed frame 2, and a spiral groove matching the first screw rod 202 is provided on the first fixed frame 2; two left-right symmetrical second motors 203 are fixed to the first fixed frame 2; a second screw rod 204 is fixed to the output shaft of each second motor 203; the two second screw rods 204 are rotatably connected to the second fixed frame 6, and a spiral groove matching the second screw rod 204 is provided on the second fixed frame 6.

[0033] It also includes a third motor 205 and a screw rod 206; a third motor 205 is fixedly connected to the second fixing frame 6; the output shaft of the third motor 205 is fixedly connected to the screw rod 206; the left spiral direction of the screw rod 206 is opposite to the right spiral direction; the screw rod 206 is located above the soil transport plate 9.

[0034] The sowing component includes a seed bin 301, a delivery pipe 302, an electric-controlled valve 303, an air pump 304 and a connecting pipe 305; the seed bin 301 is fixedly connected to the frame 1; seeds are stored and transported in the seed bin 301; four delivery pipes 302 are connected to the lower side of the seed bin 301; the inner diameter of the delivery pipe 302 can only pass one seed; the lower end of each delivery pipe 302 is connected to the adjacent sand outlet 5002; each delivery pipe 302 is connected to an electric-controlled valve 303; a connecting pipe 305 is connected between each electric-controlled valve 303 and the adjacent delivery pipe 302; an air pump 304 is fixedly connected to the upper rear part of the frame 1; the air pump 304 is connected to all the connecting pipes 305 through an air supply hose.

[0035] The sprinkler system includes a water tank 401 and a water pipe 402; the water tank 401 is fixedly connected to the frame 1; the water pipe 402 is fixedly connected to the first fixed frame 2, the water pipe 402 is connected to the water tank 401 through a connecting pipe, and a micro water pump is provided at the connection between the water pipe 402 and the water tank 401; the water pipe 402 is located above the first electric transmission belt 4; and a plurality of water holes are opened on the lower side of the water pipe 402.

[0036] The watering system further includes a scraper 403 ; the scraper 403 is fixedly connected to the first fixing frame 2 ; a through slot 40301 is opened in the middle of the scraper 403 , and the through slot 40301 is located directly below the water pipe 402 .

[0037] The sprinkler system also includes vertical pipes 404 ; a plurality of vertical pipes 404 are fixedly connected to the lower side of the scraper 403 , and the upper openings of the vertical pipes 404 are connected to the through grooves 40301 ; and a plurality of through holes 40401 are opened on each vertical pipe 404 .

[0038] Furthermore, in order to prevent dry sand from entering the vertical pipe 404 through the through hole 40401, a filter cloth is provided at the through hole 40401.

[0039] Furthermore, in order to reduce the water loss inside the dry sand, a guide surface 2001 is provided on the first fixing frame 2.

[0040] In the existing process of planting crops on sandy land, after sowing, a layer of moist sand is usually covered on the surface of the sandy land to protect the fertilizer in the sandy land, inhibit the growth of weeds, and protect the seeds from wind and bird feed. When planting on a large scale, different machines need to be replaced and repeatedly driven on the cultivated land, resulting in low crop planting efficiency. The process of planting crops on sandy land is described in detail:

[0041] First, fix the frame 1 on the agricultural tractor, and use the agricultural tractor to drive the frame 1 to move to the sandy land to be sown, and then continue to drive the frame 1 to move by the agricultural tractor. At the same time, based on the view from top to bottom, control the first motor 201 to drive the first screw rod 202 to rotate clockwise, and control the second motor 203 to drive the second screw rod 204 to rotate clockwise, so that the first fixed frame 2 and the second fixed frame 6 move downward, and the first tiller 3, the first electric transmission belt 4, the sand conveyor 5, the second tiller 7, the second electric transmission belt 8 and the soil conveying plate 9 move downward synchronously. As the frame 1 moves, the first tiller 3 and the second tiller 7 will be inserted into the sandy land in turn, and the first tiller 3 and the dry sand on the upper layer of the sandy land will be separated. The first loosener 3 and the second loosener 7 are in contact with the soil, and the second loosener 7 is in contact with the moist sandy soil in the lower layer of the sandy soil. When the first loosener 3 and the second loosener 7 follow the movement of the agricultural tractor, the plow hooks on the first loosener 3 and the second loosener 7 break the hard lumps of the sandy soil, thereby loosening the sandy soil, which is convenient for subsequent sowing. It should be noted that before sowing on sandy soil in the present invention, the dry area and the wet area of ​​the sand in the sandy soil are obtained manually through tools such as soil moisture detectors, and then the operator inputs the corresponding numerical value on the automatic operating table, and the operation of the first motor 201 and the second motor 203 is controlled in real time by the automatic control system, thereby automatically adjusting the depth of the first loosener 3 and the second loosener 7.

[0042] In the process of the first tiller 3 and the second tiller 7 moving forward, as the first tiller 3 and the second tiller 7 move forward, the dry sand and the wet sand in contact with them are pushed forward, so that the dry sand and the wet sand are respectively accumulated on the upper sides of the first tiller 3 and the second tiller 7, until the dry sand and the wet sand are respectively accumulated on the upper sides of the first electric transmission belt 4 and the second electric transmission belt 8. At this time, a groove with the same width as the second tiller 7 is formed on the sandy land, and the sand conveyor 5 is located above the groove. As viewed from right to left, the first electric transmission belt 4 is controlled to rotate clockwise, so that the dry sand moves continuously backward and upward along the first electric transmission belt 4, so that the dry sand enters the sand conveyor 5. The dry sand slides downward in the sand conveyor 5 under the action of gravity, and is then discharged from the sand outlet 5002 into the groove. When the seed is in the seeding groove, the seed in the seed bin 301 enters the electric control valve 303 through the delivery pipe 302, and the electric control valve 303 is controlled to open and then close, so that the seed in the delivery pipe 302 moves downward. When the electric control valve 303 is in the closed state, the air pump 304 is controlled to supply air to the connecting pipe 305, so that the air flow flows downward in the delivery pipe 302, thereby pushing the seed in the delivery pipe 302 to move to the sand outlet 5002, so that the seed falls to the ground with the dry sand, thereby realizing the sowing of crops.

[0043] During the process of loosening the sandy soil by the first loosener 3 and the second loosener 7, since the first loosener 3 is located in front of the second loosener 7, the upper layer of dry sand is pushed forward by the first loosener 3, and then the lower layer of moist sand is pushed forward by the second loosener 7, so that the dry sand and the moist sand are separated during the transmission process, and since the soil conveying plate 9 protrudes backward from the rear side of the sand conveyor 5, the dry sand that slides down in the sand conveyor 5 falls back to the ground before the moist sand that slides down in the soil conveying plate 9, so that the moist sand covers the upper side of the fallen dry sand. Compared with the prior art, in the process of loosening the sandy soil, seeds are sown into the sandy soil synchronously, and the moist sand in the lower layer of the sandy soil is covered to the upper side of the dry sand synchronously, eliminating the operation of using additional machinery to cover the dry sand, thereby improving the efficiency of planting crops in sandy soil.

[0044] Since the sand conveyor 5 passes downward through the middle of the soil conveying plate 9, when the soil conveying plate 9 transports the moist sand, the moist sand in the middle of the soil conveying plate 9 is blocked by the sand conveyor 5, which easily causes the moist sand to accumulate on the soil conveying plate 9, thereby reducing the soil conveying efficiency of the soil conveying plate 9. For this reason, when the moist sand is transmitted to the upper side of the soil conveying plate 9 by the second electric transmission belt 8, the moist sand contacts the screw rod 206. Taking the view from right to left as the reference, the screw rod 206 is driven to rotate clockwise by controlling the third motor 205. Since the spiral direction of the left side of the screw rod 206 is opposite to that of the right side, when the screw rod 206 rotates clockwise, the moist sand in the middle of the soil conveying plate 9 is pushed to the conveying plate 9 through the screw rod 206. The left and right sides of the soil plate 9, and then the moist sand slides down along the left and right sides of the soil conveying plate 9, avoiding the moist sand from accumulating in the middle of the soil conveying plate 9, ensuring that the soil conveying efficiency of the soil conveying plate 9 is not affected. On this basis, the moist sand is stirred by the spiral rod 206 to break large pieces of moist sand into small pieces, making the moist sand more breathable, thereby facilitating crop growth, and when the moist sand falls to the rear side of the soil conveying plate 9, part of the moist sand on the left and rear sides of the soil conveying plate 9 is guided by the V-shaped inclined surface 9001 to move toward the middle of the soil conveying plate 9, so that the thickness of the moist sand on the rear side of the soil conveying plate 9 is relatively uniform, thereby making the thickness of the moist sand covering the dry sand relatively uniform.

[0045] On this basis, when the dry sand rises to the upper side of the first electric transmission belt 4, the water in the water tank 401 flows into the water pipe 402, and then flows out from the water permeable holes on the lower side of the water pipe 402, so that the water flow is sprayed on the dry sand, thereby watering the dry sand. The moistened dry sand then continues to move to the right and falls back to the ground through the sand conveyor 5. The moistened dry sand is immediately covered by the moistened sand falling from the soil conveying plate 9. This is different from the existing method of using additional machinery to cover the dry sand after watering. The present invention can cover the dry sand after watering in time, avoid the dry sand from being exposed to the air during the covering process, reduce the loss of water in the dry sand, ensure the water content in the dry sand, and facilitate the development of seeds.

[0046] Furthermore, when the first tiller 3 pushes the dry sand forward, the dry sand accumulates on the upper side of the first tiller 3, which easily causes the dry sand to bulge, thereby making the surface of the dry sand on the first electric transmission belt 4 uneven. However, the amount of water sprayed by the water pipe 402 in the same time is certain, so the amount of dry sand moistened per unit time is also certain. When the dry sand passing under the water pipe 402 accumulates higher, it is difficult for the water to fully moisten the dry sand, resulting in a part of the dry sand not being moistened, and the dry sand that is subsequently moistened When the dry sand moves to the upper side of the first electric transmission belt 4, the dry sand is scraped flat by the scraper 403. At this time, the water sprayed from the water pipe 402 passes through the through groove 40301 and falls into the dry sand on the lower side. Therefore, the thickness of the dry sand contacted by the water at the spraying point per unit time is relatively consistent, so that the dry sand passing through the scraper 403 is flattened. The water content of the sand is relatively consistent, thereby ensuring the development of seeds. Furthermore, when the dry sand passes through the scraper 403, it contacts the vertical pipe 404 synchronously. At this time, the vertical pipe 404 is vertically inserted into the bottom of the dry sand. After the water sprayed from the water pipe 402 flows into the through groove 40301, a part of the water flows into the vertical pipe 404, and then seeps into the bottom of the dry sand from the through hole 40401, so that the bottom of the dry sand is quickly wetted, thereby improving the wetting efficiency of the dry sand. Furthermore, a filter cloth is provided at the through hole 40401 to prevent the sand from entering through the through hole 40401. The vertical pipe 404 is used to prevent the vertical pipe 404 from being blocked. Moreover, when the dry sand is moistened, the dry sand moves backward along with the first electric transmission belt 4, and then the left edge and the right edge of the dry sand contact the guide surface 2001 respectively. As the dry sand continues to move backward, the distance between the two guide surfaces 2001 gradually decreases, so that the dry sand is squeezed against each other, making the dry sand more compact. When the water pipe 402 sprays water on the dry sand, the water inside the compacted sand is not easy to flow compared with the loose sand, thereby reducing the water loss inside the sand. Example 2

[0047] On the basis of Example 1, Figure 7-Figure 8As shown, the extrusion system includes a driving member 501, a fixed plate 502, a fixed frame 503 and a pressure plate 504; a fixed plate 502 is slidably connected to the upper and lower sides of the sand conveyor 5; two left-right symmetrical driving members 501 are fixedly connected between each fixed plate 502 and the sand conveyor 5, and the driving member 501 is an electric push rod; the fixed plate 502 is driven up and down by the driving member 501; four fixed frames 503 are fixed to each fixed plate 502, and each fixed frame 503 is located in an adjacent sand outlet 5002; a pressure plate 504 is connected to each fixed frame 503 through a spring; each conveying pipe 302 passes through an adjacent fixed frame 503 and a pressure plate 504.

[0048] Furthermore, to ensure that the planting depth of the seeds is substantially the same, the bottom of the delivery tube 302 is flush with the lower side of the adjacent fixing frame 503 .

[0049] When the moistened dry sand is discharged from the sand outlet 5002 of the sand conveyor 5, the seeds fall into the sand outlet 5002 synchronously, and fall into the groove with the sand. Since there is a certain distance between the sand outlet 5002 and the bottom of the groove, and the seeds are on the surface of the sand at this time, and the seeds are light in weight, the seeds are easily deflected by the wind during the falling process, causing the seeds to fall outside the predetermined position, resulting in inconsistent spacing between subsequent crops, affecting subsequent management such as watering and fertilizing of the crops. For this reason, when the seeds reach the bottom of the conveying pipe 302, the control driving member 501 drives the two fixed plates 502 to move toward each other, thereby driving the two fixed frames 503 and the adjacent pressure plates 504 at the same sand outlet 5002 to move toward each other, that is, located at The upper fixed frame 503 and its adjacent pressure plate 504 move downward, and the lower fixed frame 503 and its adjacent pressure plate 504 move upward, so that the fixed frame 503 is inserted between the dry sand. At the same time, the two pressure plates 504 fit the upper and lower sides of the sand respectively. As the two fixed frames 503 continue to move toward each other, the pressure plates 504 are blocked by the sand and move toward the inside of the fixed frame 503. The spring between the fixed frame 503 and the pressure plate 504 is compressed until the spring is compressed to the limit and the pressure plate 504 stops moving. Then the two fixed frames 503 continue to move toward each other until they fit together, and the sand in the sand opening 5002 is squeezed out by the two pressure plates 504, so that the sand between the two fixed frames 503 forms a sand ball, and, At this time, the two fixed frames 503 are fitted together, the sand outlet 5002 is in a closed state, and the sand in the sand conveyor 5 stops moving. At the same time, the fixed frame 503 on the upper side drives the conveying pipe 302 to move synchronously toward each other during the downward movement, so that the conveying pipe 302 is inserted into the sand mass. At this time, gas is delivered to the connecting pipe 305 through the air pump 304, so that the air flow blows to the bottom of the conveying pipe 302, and then blows the seeds at the bottom of the conveying pipe 302 into the sand mass. Then, the driving member 501 is controlled to drive the two fixed plates 502 to move back to back, thereby driving the two fixed frames 503 of the same sand outlet 5002 to move back to back until the fixed frame 503 is separated from the sand mass. At this time, the sand outlet 5002 is in an open state. The sand ball slides downward, thereby pushing the sand ball out of the sand outlet 5002, and then the sand ball falls into the groove on the ground. At this time, the sand ball is squeezed by the two pressure plates 504, so that the moistened sand soil is aggregated together to make the sand ball denser, thereby preventing the sand ball from dispersing when it falls into the groove on the ground, causing the seeds to be on the upper layer of the sand ball, which in turn easily leads to the problem of too shallow planting depth of the seeds, ensuring that the planting depth of the seeds is not affected. On this basis, since the seeds are located in the sand ball and the mass of the sand ball is heavy, the sand ball is usually difficult to deflect during the falling process, and by controlling the time interval of the movement of the two fixed frames 503, the gap between the sand ball falling into the ground is controlled, and then the interval between two adjacent seeds is controlled, so that the distance between the seeds is evenly spaced.This ensures that the spacing between crops is relatively consistent, making it easier to manage crops later, such as watering and fertilizing. Furthermore, when the delivery tube 302 is inserted into the sand ball, since the bottom of the delivery tube 302 is flush with the lower side of the adjacent fixed frame 503, when the seeds fall into the sand ball, the seeds are located at the center of the sand ball, so that the depth of the seeds in the groove on the surface is basically consistent. At this time, the seeds are at the optimal planting depth, avoiding the situation where some seeds are planted too deep or too shallow, thereby improving the survival rate of the seeds.

[0050] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An automated adjustable agricultural seeder, comprising a frame (1); characterized in that: The vehicle also includes a driving assembly, a first fixed frame (2), a first loosening device (3), a first electric transmission belt (4), a sand conveyor (5), a second fixed frame (6), a second loosening device (7), a second electric transmission belt (8), a soil conveying plate (9), a sowing assembly, a watering system, and a squeezing system; the vehicle frame (1) is connected to the driving assembly; the driving assembly is connected to the first fixed frame (2); the first loosening device (3) for loosening dry sand is installed on the front side of the first fixed frame (2); the first electric transmission belt (4) is provided on the first fixed frame (2); the sand conveyor (5) is installed on the rear side of the first fixed frame (2); a plurality of partitions (5001) are provided on the lower side of the sand conveyor (5); the plurality of partitions (5001) divide the lower end of the sand conveyor (5) into a plurality of sand outlets (5002); the driving assembly is connected to the second fixed frame (6); the second fixed frame (6 ) is located below the first fixing frame (2); the first fixing frame (2) and the second fixing frame (6) are driven to move up and down by a driving assembly; a second loosening device (7) for loosening moist sand is provided on the front side of the second fixing frame (6); a second electric transmission belt (8) is provided on the second fixing frame (6); a soil conveying plate (9) is connected to the rear side of the second fixing frame (6); the rear side of the soil conveying plate (9) is provided with a V-shaped inclined surface (9001); the first loosening device (3) is located on the front side of the second loosening device (7), and the soil conveying plate (9) protrudes backward from the rear side of the sand conveyor (5); a plurality of plow hooks are provided on the first loosening device (3) and the second loosening device (7); a sowing assembly for sowing on sandy land is connected to the vehicle frame (1); a watering system for increasing the moisture content of dry sand is connected to the vehicle frame (1); and a squeezing system for preventing the dry sand from scattering is connected to the sand conveyor (5); The sowing assembly comprises a seed bin (301), a delivery pipe (302), an electric control valve (303), an air pump (304) and a connecting pipe (305); the frame (1) is fixedly connected to the seed bin (301); seeds are stored and transported in the seed bin (301); a plurality of delivery pipes (302) are connected to the lower side of the seed bin (301); the inner diameter of the delivery pipe (302) can only pass one seed; the lower end of each delivery pipe (302) is connected to the adjacent sand outlet (5002); each delivery pipe (302) is connected to an electric control valve (303); a connecting pipe (305) is connected between each electric control valve (303) and the adjacent delivery pipe (302); an air pump (304) is fixedly connected to the upper side of the frame (1); the air pump (304) is connected to all the connecting pipes (305) through an air hose; The extrusion system comprises a driving member (501), a fixing plate (502), a fixing frame (503) and a pressing plate (504); a fixing plate (502) is slidably connected to the upper and lower sides of the sand conveyor (5); a plurality of driving members (501) are fixedly connected between each fixing plate (502) and the sand conveyor (5); the fixing plate (502) is driven to move up and down by the driving member (501); a plurality of fixing frames (503) are fixedly connected to each fixing plate (502) for preventing seeds from deviating from the groove when falling, and each fixing frame (503) is located in an adjacent sand outlet (5002); a pressing plate (504) is connected to each fixing frame (503) through a spring for preventing dry sand from being scattered when falling into the groove; and each conveying pipe (302) passes through an adjacent fixing frame (503) and a pressing plate (504).

2. The automatic adjustment agricultural seeder according to claim 1, characterized in that: It also includes a third motor (205) and a screw rod (206); the second fixing frame (6) is fixedly connected to the third motor (205); the output shaft of the third motor (205) is fixedly connected to the screw rod (206); the left spiral direction of the screw rod (206) is opposite to the right spiral direction; the screw rod (206) is located above the soil transport plate (9).

3. The automatic adjustment agricultural seeder according to claim 1, characterized in that: The watering system comprises a water tank (401) and a water pipe (402); the water tank (401) is fixedly connected to the vehicle frame (1); the water pipe (402) for sprinkling water on dry sand is fixedly connected to the first fixed frame (2); the water pipe (402) is connected to the water tank (401) via a connecting pipe; a micro water pump is provided at the connection point between the water pipe (402) and the water tank (401); the water pipe (402) is located above the first electric transmission belt (4); and a plurality of water holes are provided on the lower side of the water pipe (402).

4. The automatic adjustment agricultural seeder according to claim 3, characterized in that: The watering system further comprises a scraper (403); the scraper (403) for leveling dry sand is fixedly connected to the first fixing frame (2); a through groove (40301) is provided in the middle of the scraper (403), and the through groove (40301) is located directly below the water pipe (402).

5. The automatic adjustment agricultural seeder according to claim 4, characterized in that: The sprinkler system further comprises vertical pipes (404); a plurality of vertical pipes (404) are fixedly connected to the lower side of the scraper (403); the upper openings of the vertical pipes (404) are in communication with the through grooves (40301); and each vertical pipe (404) is provided with a plurality of through holes (40401) for improving the wetting efficiency of dry sand.

6. The automatic adjustment agricultural seeder according to claim 5, characterized in that: A filter cloth is provided at the through hole (40401).

7. The automatic adjustment agricultural seeder according to claim 4, characterized in that: A guide surface (2001) is provided on the first fixing frame (2).

8. The automatic adjustment agricultural seeder according to claim 1, characterized in that: The bottom of the delivery pipe (302) is flush with the lower side of the adjacent fixing frame (503).

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