Automatic adjusting type agricultural seeding machine

Abstract

The invention relates to the technical field of agricultural planting, in particular to an automatic adjusting type agricultural seeding machine which comprises a frame, a driving assembly, a first fixing frame, a first scarifier and the like. The frame is connected with a driving assembly; the driving assembly is connected with a first fixing frame; a first scarifier used for scarifying dry sandy soil is installed on the front side of the first fixing frame. In the process of loosening the soil of the sandy land, seeds are sown into the sandy land synchronously, wet sandy soil on the lower layer of the sandy land covers the upper side of dry sandy soil, the operation of covering the dry sandy soil with soil by using an extra machine is omitted, and therefore the efficiency of planting crops in the sandy land 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 process of planting crops on existing sandy soil, after sowing in 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 feeding. 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 is easily evaporated 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 existing problem that after sowing in sandy land, a layer of moist sand is usually covered on the surface of the sandy land, but when large-scale planting is carried out, different machines usually need to be replaced and repeatedly driven on the cultivated land, so the crop planting efficiency is low, and since the moisture in the sandy land is easily evaporated into the air, the water content in the sandy land is insufficient, and the normal growth of crops is not utilized, the present invention provides an automatic adjustment type agricultural seeder.

[0004] The technical solution is: an automated adjustable agricultural seeder, comprising a frame; a driving assembly, a first fixed frame, a first loosening device, a first electric transmission belt, a sand conveyor, a second fixed frame, a second loosening device, a second electric transmission belt, a soil conveying plate, a sowing assembly, a sprinkler system and an extrusion system; the frame is connected to the driving assembly; the driving assembly is connected to the first fixed frame; the front side of the first fixed frame is equipped with a first loosening device for loosening dry sand; the first fixed frame is provided with a first electric transmission belt; the rear side of the first fixed frame is equipped with a sand conveyor; 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 driving assembly is connected to the second fixed frame The second fixing frame is located below the first fixing frame; the first fixing frame and the second fixing frame are driven to move up and down by the driving assembly; a second loosening device for loosening moist sand is arranged on the front side of the second fixing frame; a second electric transmission belt is arranged on the second fixing frame; a soil conveying plate is connected to the rear side of the second fixing frame; a V-shaped slope is arranged on the rear side of the soil conveying plate; the first loosening device is located in front of the second loosening device, and the soil conveying plate protrudes backwards from the rear side of the sand conveyor; a plurality of plow hooks are arranged on the first loosening device and the second loosening device; a sowing assembly for sowing sand is connected to the frame; a sprinkler system for increasing the moisture content of dry sand is connected to the frame; and an extrusion system for preventing the dry sand from being scattered is connected to the sand conveyor.

[0005] Furthermore, it also includes a third motor and a spiral rod; a third motor is fixedly connected to the second fixing frame; a spiral rod is fixedly connected to the output shaft of the third motor; the spiral direction of the left side of the spiral rod is opposite to that of the right side; and the spiral 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 plurality 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 through 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 frame; the first fixed frame is fixedly connected to a water pipe for sprinkling water on dry sand, 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 permeable 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 arranged 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 fixedly connected to 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 adjacent fixed frames and pressure plates.

[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: In the process of loosening the sandy soil, seeds are sown into the sandy soil at the same time, and the wet sandy soil in the lower layer of the sandy soil is covered to the upper side of the dry sandy soil at the same time, eliminating the operation of using additional machinery to cover the dry sandy soil, thereby improving the efficiency of planting crops in sandy soil; 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, and then the moistened dry sand is immediately covered by the moistened sand falling from the soil conveying 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; When the dry sand is moistened, the sand moves to the right along with the first electric transmission belt, and then 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, so that the sand is tightly connected to each other, and the water loss inside the sand is reduced; 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 at 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; Through the squeezing of two pressure plates, the sand in the sand ball is aggregated together to make the sand ball denser, thereby 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

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic adjustment type agricultural seeder of the present invention;

[0016] Figure 2 A side view of the automatic adjustment agricultural seeder of the present invention;

[0017] Figure 3 It is a schematic diagram of a three-dimensional structure of a combination of a vehicle frame, a first fixing frame and a second fixing frame of the present invention;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the vehicle frame, sand conveyor and sowing assembly combined according to the present invention;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the sprinkler system of the present invention;

[0020] Figure 6 For the present invention Figure 5 A in the enlarged view;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the extrusion system of the present invention;

[0022] Figure 8 It is a combined cross-sectional view of the sand conveyor, the fixing plate and the fixing frame of the present invention.

[0023] Figure numbers: 1-frame, 2-first fixed frame, 2001-guide surface, 3-first ripper, 4-first electric transmission belt, 5-sand conveyor, 5001-partition plate, 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 rod, 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 member, 502-fixed plate, 503-fixed frame, 504-pressing plate. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings. Example 1

[0025] like Figure 1-Figure 6 As shown, an automatic adjustment type agricultural seeder includes a frame 1; It also includes a driving 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 driving assembly; the first fixed frame 2 is connected to the driving assembly; the first tiller 3 is installed on the front side of the first fixed frame 2; the first electric transmission belt 4 is arranged 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 arranged 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 driving assembly is connected to the first 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 tiller 7 is arranged on the front side of the second fixing frame 6; a second electric transmission belt 8 is arranged on the second fixing frame 6; a soil conveying plate 9 is connected to the rear side of the second fixing frame 6; a V-shaped inclined surface 9001 is arranged on the rear side of the soil conveying plate 9; the first tiller 3 is located in front of the second tiller 7, and the soil conveying plate 9 protrudes backwards from the rear side of the sand conveyor 5; a plurality of plow hooks are arranged on the first tiller 3 and the second tiller 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.

[0026] 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 fixedly connected to the first fixed frame 2; a first screw rod 202 is fixedly connected 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 fixedly connected to the first fixed frame 2; a second screw rod 204 is fixedly connected 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.

[0027] 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 screw rod 206 is fixedly connected to the output shaft of the third motor 205; 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.

[0028] 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.

[0029] 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 point between the water pipe 402 and the water tank 401; the water pipe 402 is located above the first electric transmission belt 4; a plurality of water permeable holes are opened on the lower side of the water pipe 402.

[0030] The watering system further comprises a scraper 403 ; the scraper 403 is fixedly connected to the first fixing frame 2 ; a through groove 40301 is opened in the middle of the scraper 403 , and the through groove 40301 is located directly below the water delivery pipe 402 .

[0031] The sprinkler system further includes a vertical pipe 404 ; a plurality of vertical pipes 404 are fixedly connected to the lower side of the scraper 403 , and the upper opening of the vertical pipe 404 is connected to the through groove 40301 ; and a plurality of through holes 40401 are opened on each vertical pipe 404 .

[0032] 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.

[0033] Furthermore, in order to reduce the water loss inside the dry sand, a guide surface 2001 is provided on the first fixing frame 2.

[0034] In the process of planting crops on existing sandy land, after sowing on the sandy land, 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 feeding. When planting on a large scale, different machines need to be replaced and repeatedly driven on the cultivated land, so the crop planting efficiency is low. The process of planting crops on the sandy land is described in detail: First, the frame 1 is fixed on the agricultural tractor, and the agricultural tractor drives the frame 1 to move to the sandy land to be sown, and then the agricultural tractor continues to drive the frame 1 to move. At the same time, based on the view from top to bottom, the first motor 201 is controlled to drive the first screw rod 202 to rotate clockwise, and the second motor 203 is controlled 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 conveyor 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 sequence, and the first tiller 3 and the dry sand on the upper layer of the sandy land will be The first tiller 3 and the second tiller 7 are in contact with the moist sand in the lower layer of the sandy soil. During the movement of the first tiller 3 and the second tiller 7 following the agricultural tractor, the plow hooks on the first tiller 3 and the second tiller 7 break up the hard lumps of the sandy soil, thereby loosening the sandy soil for subsequent sowing. It should be noted that before sowing on the 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 values ​​on the automated operating console, and the automated control system controls the operation of the first motor 201 and the second motor 203 in real time, thereby automatically adjusting the depth of the first tiller 3 and the second tiller 7.

[0035] During 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. Based on the view 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, and the dry sand slides downward in the sand conveyor 5 under the action of gravity, and then is discharged into the groove from the sand outlet 5002. 303 is opened and then closed, and the seeds in the delivery pipe 302 are moved downwardly. 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 downwardly in the delivery pipe 302, thereby pushing the seeds in the delivery pipe 302 to move to the sand outlet 5002, so that the seeds fall into the ground with the dry sand, thereby realizing the sowing of crops.

[0036] In 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.

[0037] Since the sand conveyor 5 passes downward through the middle of the soil conveying plate 9, when the soil conveying plate 9 transports the wet sand, the wet sand in the middle of the soil conveying plate 9 is blocked by the sand conveyor 5, which easily causes the wet 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 wet sand is transmitted to the upper side of the soil conveying plate 9 by the second electric transmission belt 8, the wet sand contacts the screw rod 206. Based on the view from right to left, 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 wet 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 wet sand slides down along the left and right sides of the soil conveying plate 9, avoiding the wet 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 wet sand is stirred by the spiral rod 206 to break large pieces of wet sand into small pieces, making the wet sand more breathable, thereby facilitating crop growth. Moreover, when the wet sand falls to the rear side of the soil conveying plate 9, part of the wet sand on the left and rear sides of the soil conveying plate 9 is guided to move to the middle of the soil conveying plate 9 by the V-shaped inclined surface 9001, so that the thickness of the wet sand on the rear side of the soil conveying plate 9 is relatively uniform, thereby making the thickness of the wet sand covering the dry sand relatively uniform.

[0038] 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, and the dry sand is watered. Then the moistened dry sand continues to move to the right and falls back to the ground through the sand conveyor 5. Thereafter, the moistened dry sand is immediately covered by the moistened sand dropped from the soil conveying plate 9. This is different from the existing method of covering the dry sand with machinery after watering. The present invention can cover the dry sand after watering in time, avoid exposing the dry sand 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.

[0039] 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 smooth. The moisture 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 penetrates 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. In the vertical pipe 404, the vertical pipe 404 is prevented from being blocked, and 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 to the loose sand, thereby reducing the water loss inside the sand. Example 2

[0040] 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 pressing 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 to move up and down by the driving member 501; four fixed frames 503 are fixedly connected to each fixed plate 502, and each fixed frame 503 is located in an adjacent sand outlet 5002; a pressing 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 pressing plate 504.

[0041] Furthermore, in order to ensure that the planting depth of the seeds is basically consistent, the bottom of the delivery tube 302 is flush with the lower side of the adjacent fixing frame 503.

[0042] 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 pressing 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 pressing plate 504 move downward, and the lower fixed frame 503 and its adjacent pressing plate 504 move upward, so that the fixed frame 503 is inserted into the dry sand. At the same time, the two pressing 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 pressing plate 504 is blocked by the sand and moves toward the inside of the fixed frame 503. The spring between the fixed frame 503 and the pressing plate 504 is compressed until the spring is compressed to the limit, and the pressing plate 504 stops moving. Then the two fixed frames 503 continue to move toward each other until they fit each other, and the sand in the sand mouth 5002 is squeezed out by the two pressing 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 located on the upper side drives the conveying pipe 302 to move synchronously towards 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 is blown to the bottom of the conveying pipe 302, and then the seeds at the bottom of the conveying pipe 302 are blown 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 making the sand ball fall into the groove on the ground. At this time, the sand ball is squeezed by the two pressing plates 504, so that the moistened sand soil is aggregated together to make the sand ball more compact, thereby preventing the sand ball from dispersing when falling into the groove on the ground, resulting in the seeds being in the upper layer of the sand ball, which in turn easily leads to the problem of too shallow planting depth of the seeds, and 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, which facilitates subsequent management such as watering and fertilizing the crops. 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 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.

[0043] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An automated adjustable agricultural seeder, comprising a frame (1); characterized in that: The vehicle also comprises 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 arranged 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 arranged 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 arranged on the front side of the second fixing frame (6); a second electric transmission belt (8) is arranged on the second fixing frame (6); a soil transport plate (9) is connected to the rear side of the second fixing frame (6); a V-shaped inclined surface (9001) is arranged on the rear side of the soil transport plate (9); the first loosening device (3) is located on the front side of the second loosening device (7), and the soil transport plate (9) protrudes backwards from the rear side of the sand transport device (5); a plurality of plow hooks are arranged on the first loosening device (3) and the second loosening device (7); a sowing assembly for sowing on sandy land is connected to the frame (1); a watering system for increasing the moisture content of dry sand is connected to the frame (1); and a squeezing system for preventing the dry sand from spreading is connected to the sand transport device (5).

2. The automatic adjustable 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 a third motor (205); the output shaft of the third motor (205) is fixedly connected to the screw rod (206); the left side of the screw rod (206) has a screw direction opposite to the right side; and the screw rod (206) is located above the soil transport plate (9).

3. The automatic adjustable agricultural seeder according to claim 1, characterized in that: 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 with the seed bin (301); seeds are stored and transported in the seed bin (301); the lower side of the seed bin (301) is connected with a plurality of delivery pipes (302); the inner diameter of the delivery pipe (302) can only pass one seed; the lower end of each delivery pipe (302) is connected with an adjacent sand outlet (5002); each delivery pipe (302) is connected with an electric control valve (303); each electric control valve (303) and an adjacent delivery pipe (302) are connected with a connecting pipe (305); the upper side of the frame (1) is fixedly connected with the air pump (304); the air pump (304) is connected with all the connecting pipes (305) via an air delivery hose.

4. The automatic adjustable agricultural seeder according to claim 3, 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 watering 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 permeable holes are provided on the lower side of the water pipe (402).

5. The automatic adjustable agricultural seeder according to claim 4, 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 delivery pipe (402).

6. The automatic adjustable agricultural seeder according to claim 5, characterized in that: The watering system further comprises a vertical pipe (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.

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

8. The automatic adjustable agricultural seeder according to claim 5, characterized in that: A guide surface (2001) is provided on the first fixing frame (2).

9. An automatic adjustable agricultural seeder according to any one of claims 1 to 8, characterized in that: 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).

10. The automatic adjustable agricultural seeder according to claim 9, 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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