Seeding equipment adaptive to strip aerial seeding of rapeseeds of unmanned aerial vehicle

Abstract

The invention discloses sowing equipment adaptive to strip aerial sowing of rapeseeds by an unmanned aerial vehicle, the equipment takes an agricultural unmanned aerial vehicle as a carrier, and a sowing mechanism is hung at the bottom of the agricultural unmanned aerial vehicle. A rapeseed coating mechanism is arranged in the seeding mechanism, so that seed fertilizer liquid can be sprayed to the rapeseeds, the rapeseeds are coated with fertilizer, and subsequent growth is facilitated. A rapeseed material box is arranged on the rear side of the inner cavity to provide a rapeseed source for seeding. A seeding acceleration mechanism is arranged on the surface of the bottom, airflow is generated by an air pump and conveyed to a distributing hopper through an air pipe and a manifold, rapeseeds covered with fertilizer are driven to enter a plastic pipe to be seeded downwards in an accelerated mode, the unmanned aerial vehicle and external airflow are prevented from interfering the seeding direction, rifling in the plastic pipe enables the rapeseeds to rotate and fall, and it is guaranteed that the seeding direction is straight. In addition, the device is further provided with a liquid injection port for conveniently supplementing seed fertilizer liquid, a rapeseed feeding port is provided with a bottle cap for preventing spilling, and the efficiency and quality of aerial seeding of rapeseeds by the unmanned aerial vehicle are integrally improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicle strip aerial seeding equipment, and particularly relates to a seeding device for strip aerial seeding of rapeseed. BACKGROUND

[0002] In the field of agricultural planting, unmanned aerial vehicle aerial seeding technology is gradually becoming an important means of modern agricultural seeding due to its advantages of high efficiency, flexibility, small terrain limitation and the like. However, in the strip aerial seeding operation of rapeseed, the existing unmanned aerial vehicle seeding device has many problems. On the one hand, in the seeding process, the ordinary seeding device is easily affected by the air flow generated by the flight of the unmanned aerial vehicle and the external air flow, resulting in deviation of the rapeseed seeding direction, and the rapeseed cannot be accurately seeded according to the predetermined strip, thereby affecting the growth distribution and yield of crops. On the other hand, the traditional device can only realize simple seeding function, and cannot perform fertilizer covering treatment on rapeseed at the same time. This makes it necessary to additionally perform fertilization operation after the rapeseed is seeded, which not only increases the labor cost and time cost, but also may affect the growth and development of rapeseed due to untimely or uneven fertilization. Therefore, the present application proposes a seeding device for strip aerial seeding of rapeseed. SUMMARY

[0003] In view of the defects in the above background art, the present application provides a technical solution of a seeding device for strip aerial seeding of rapeseed.

[0004] The device comprises an agricultural unmanned aerial vehicle, a seeding mechanism hung at the bottom of the agricultural unmanned aerial vehicle, a rapeseed covering mechanism arranged in the middle section of the inner cavity of the seeding mechanism, a rapeseed bin arranged at the rear side of the inner cavity of the seeding mechanism, and a seeding acceleration mechanism arranged on the bottom surface of the seeding mechanism.

[0005] The seeding mechanism comprises a plastic shell and a rapeseed feeding port arranged at the rear side of the top surface of the plastic shell.

[0006] The seeding acceleration mechanism comprises a row of distribution hoppers inlaid and fixed on the bottom surface of the plastic shell, and an air pump fixed on the front side surface of the plastic shell, and a plastic pipe is connected to the bottom end port of each distribution hopper, and a gas pipe is connected to the gas supply end nozzle of the air pump, and the distal end of the gas pipe is bifurcatedly connected to a plurality of manifolds obliquely inserted into the inner cavities of the distribution hoppers, wherein the number of distribution hoppers and manifolds is 4-8, and the manifolds are sequentially inserted into the inner cavities of the distribution hoppers.

[0007] The rapeseed coating mechanism comprises a base, a support plate fixed on the left side of the base, and a side support plate fixed on the right side of the base, a roller is rotatably arranged between the support plate and the side support plate, a plurality of rows of grooves are arranged in an annular array on the outer surface of the roller, a servo motor is fixed on the left side of the support plate, the output shaft of the servo motor penetrates the support plate and is connected with a circular disc, a lever is rotatably connected to the right side of the circular disc away from the center position;

[0008] A connecting rod is slidably connected to the right side of the support plate, a rotating disc is rotatably connected to the bottom end of the connecting rod, the right end of the lever is rotatably connected to the left side of the rotating disc away from the center position, a fertilizer solution tank is arranged on the top of the roller, and a plurality of hoses extending above the grooves are arranged on the rear side of the fertilizer solution tank.

[0009] The rapeseed box comprises a box body and a flat nozzle fixed on the front side of the box body and connected with the feed inlet of the rapeseed coating mechanism.

[0010] In the above technical solution, preferably, the top surface of the plastic shell is fixed on the bottom surface of the agricultural unmanned aerial vehicle by bolt locking, and the front surface of the plastic shell is provided with a liquid injection port for supplementing the solution of the fertilizer solution tank.

[0011] In the above technical solution, preferably, the bottom surface of the plastic shell is provided with an opening for fixedly arranging the distribution hopper in parallel, and a bottle cap is screwed into the port of the rapeseed feed inlet.

[0012] In the above technical solution, preferably, the front side wall of the distribution hopper is provided with an opening for obliquely penetrating the manifold, the gap between the opening and the manifold is filled with sealing glue, and the manifold obliquely penetrates the plastic tube to drive the rapeseed in the distribution hopper into the plastic tube by air flow and accelerate downward seeding, thereby avoiding the deviation of the seeding direction caused by the air flow of the agricultural unmanned aerial vehicle and the air flow.

[0013] In the above technical solution, preferably, the air pump is an intermittent pulse air supply, and an electromagnetic valve controlled by the control main board of the agricultural unmanned aerial vehicle is arranged at the connection position between the air pipe and the manifold.

[0014] In the above technical solution, preferably, a plurality of rifling grooves are arranged on the inner cavity side wall of the plastic tube for rotating the rapeseed after fertilization during the discharging process to make the seeding direction more straight.

[0015] In the above technical solution, preferably, a sliding groove is fixed on the right surface of the support plate, a sliding block is slidably arranged in the sliding groove, and the top end of the connecting rod is rotatably connected to the right side wall of the sliding block.

[0016] In the technical scheme, preferably, the right side wall of the sliding block is fixedly connected with a top plate, and a plurality of through holes for the soft tube to pass through and insert into the groove are formed in the inside of the top plate.

[0017] In the technical scheme, preferably, the feeding groove and the discharging groove are respectively fixed on the front and back of the side close to the support plate and the side support plate, the feeding groove is connected with the flat nozzle, and the discharging groove is connected with the top port of the distribution hopper.

[0018] In the technical scheme, preferably, the top ends of the support plate and the side support plate are fixed with a fixed plate, and a liquid level sensor is installed in the inner cavity of the fertilizer liquid tank.

[0019] According to the technical scheme, the present application provides a seeding device for strip aerial seeding of rapeseed by unmanned aerial vehicle, which has the following advantages compared with the prior art.

[0020] The seeding device for strip aerial seeding of rapeseed by unmanned aerial vehicle is hung on the bottom of the agricultural unmanned aerial vehicle, which is convenient for the unmanned aerial vehicle to carry out aerial seeding operation. The seeding acceleration mechanism uses the air pump to supply air, and through the manifold, air flow is delivered into the distribution hopper to drive the rapeseed to accelerate downward seeding, avoiding the deviation of the seeding direction caused by the unmanned aerial vehicle and air flow. The air pump intermittently supplies air in pulses and is controlled by the electromagnetic valve, which can accurately control the seeding. The rapeseed coating mechanism can spray liquid seed fertilizer or mix solid particle fertilizer on the rapeseed, so that the rapeseed is fertilized, which is beneficial to the later growth. The rifling of the plastic tube inner cavity side wall makes the fertilized rapeseed rotate when discharging, so that the seeding direction is straight. In addition, the plastic shell is fixed on the bottom of the unmanned aerial vehicle by bolts, which is stable in installation. The liquid injection port is convenient for supplementing the solution of the seed fertilizer tank. The rapeseed feeding port bottle cap can prevent the rapeseed from spilling out. The overall design improves the efficiency and quality of aerial seeding of rapeseed. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the following will briefly introduce and describe the drawings needed to be used in the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description are only part of the embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0022] Figure 1 is a schematic view of the unmanned aerial vehicle and the rapeseed seeding mechanism;

[0023] Figure 2 is an internal schematic view of the rapeseed seeding mechanism;

[0024] Figure 3 is a schematic view of the rapeseed coating mechanism;

[0025] Figure 4 Schematic diagram of the oilseed rape seeding acceleration mechanism;

[0026] Figure 5 Schematic diagram of the bore in the oilseed rape seeding acceleration mechanism;

[0027] Figure 6 Schematic diagram of the oilseed rape seed tank.

[0028] Attached Figure 1 -Attached Figure 6 The corresponding relationship of the components in the above is as follows:

[0029] 1. An agricultural unmanned aerial vehicle;

[0030] 2. A seeding mechanism; 2-1, a plastic shell; 2-2, an oilseed rape seed inlet;

[0031] 3. A seeding acceleration mechanism; 3-1, an air pump; 3-2, an air pipe; 3-3, a manifold; 3-4, a distribution hopper; 3-5, a plastic pipe; 3-6, a rifling;

[0032] 4. An oilseed rape seed coating mechanism; 4-1, a base; 4-2, a roller; 4-3, an inlet slot; 4-4, a rotating disc; 4-5, a circular disc; 4-6, a lever; 4-7, a servo motor; 4-8, a support plate; 4-9, a connecting rod; 4-10, a top plate; 4-11, a seed and fertilizer liquid tank; 4-12, a hose; 4-13, a fixing plate; 4-14, a groove; 4-15, a side support plate;

[0033] 5. An oilseed rape seed tank; 5-1, a tank body; 5-2, a flat nozzle. DETAILED DESCRIPTION

[0034] In order for those skilled in the art to better understand the present application, the technical solutions of the present application will be further described in detail below in combination with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0035] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below in combination with the embodiments.

[0036] Example 1: A seeding device adapted for strip seeding of rapeseed by drones includes an agricultural drone 1. A plastic shell 2-1 of a seeding mechanism 2 is bolted to the bottom of the agricultural drone 1. A rapeseed coating mechanism 4 is located in the middle of the inner cavity of the seeding mechanism 2, a rapeseed feed box 5 is located at the rear, and a seeding acceleration mechanism 3 is located on the bottom surface. A rapeseed inlet 2-2 is located on the rear side of the top surface of the plastic shell 2-1 of the seeding mechanism 2, with a screw-on cap at the port. A liquid injection port is located on the front surface for replenishing the solution in the seed-fertilizer liquid tank 4-11 of the rapeseed coating mechanism 4. In the seeding acceleration mechanism 3, a row of feed hoppers 3-4 are embedded and fixed side-by-side at the opening on the bottom surface of the plastic shell 2-1. The bottom port of each feed hopper 3-4 is connected to a plastic tube 3-5, and the inner side wall of the plastic tube 3-5 is provided with multiple rifling grooves 3-6. Air pump 3-1 is fixed to the front surface of plastic shell 2-1. Its air supply nozzle is connected to air pipe 3-2. The end of air pipe 3-2 is connected to several manifolds 3-3 that are inclined and inserted into the bottom of the inner cavity of distribution hopper 3-4 through a connector. The front side wall of distribution hopper 3-4 has an opening for the manifolds 3-3 to pass through obliquely. The gap is filled with sealant. There are 4-8 manifolds 3-3 in both distribution hopper 3-4 and manifolds 3-3, and the manifolds 3-3 are inserted into the inner cavity of distribution hopper 3-4 in sequence. Air pump 3-1 uses intermittent pulse air supply. A solenoid valve controlled by the control motherboard of agricultural drone 1 is installed at the connection position between air pipe 3-2 and manifolds 3-3. During operation, the air pump 3-1 provides intermittent pulse air supply. The airflow enters the manifold 3-3 through the air pipe 3-2, and then enters the feed hopper 3-4, which carries the rapeseed inside into the plastic pipe 3-5. The rapeseed rotates under the action of the rifling 3-6 and is sown in a straight downward direction, avoiding deviation in sowing direction caused by the airflow of the agricultural drone 1 and the airflow of the air.

[0037] In the rapeseed coating mechanism 4, the left side of the base 4-1 is fixed with a support plate 4-8, and the right side is fixed with a side support plate 4-15. A roller 4-2 is rotatably arranged between the two support plates. The outer surface of the roller 4-2 is annularly arranged with multiple rows of grooves 4-14. A servo motor 4-7 is fixed on the left side of the support plate 4-8. The output shaft of the servo motor 4-7 penetrates the support plate 4-8 and is connected with a circular disc 4-5. The circular disc 4-5 is rotatably connected with a lever 4-6 at a position deviated from the center of the right side of the circular disc 4-5. A sliding groove is fixed on the right surface of the support plate 4-8. A sliding block slides up and down in the sliding groove. A connecting rod 4-9 is rotatably connected with the sliding block at the right side wall of the sliding block. The bottom end of the connecting rod 4-9 is rotatably connected with a rotating disc 4-4. The right end of the lever 4-6 is rotatably connected with the rotating disc 4-4 at a position deviated from the center of the left side of the rotating disc 4-4. A top plate 4-10 is fixed on the right side wall of the sliding block. Multiple through holes are formed in the top plate 4-10. A seed and fertilizer liquid tank 4-11 is arranged on the top of the roller 4-2. Multiple hoses 4-12 are arranged on the rear side of the seed and fertilizer liquid tank 4-11 and extend above the grooves 4-14. The hoses 4-12 penetrate the through holes of the top plate 4-10 and are inserted into the grooves 4-14. A liquid level sensor is arranged in the inner cavity of the seed and fertilizer liquid tank 4-11. The support plate 4-8 and the side support plate 4-15 are fixed with an inlet chute 4-3 and an outlet chute on the side close to each other. The inlet chute 4-3 is connected with a flat nozzle 5-2 of a rapeseed tank 5. The outlet chute is connected with the top end of a distribution hopper 3-4. The servo motor 4-7 is started to drive the circular disc 4-5 to rotate. The circular disc 4-5 drives the rotating disc 4-4 to rotate through the lever 4-6. The rotating disc 4-4 drives the sliding block to slide up and down in the sliding groove through the connecting rod 4-9. The top plate 4-10 moves up and down accordingly. The hoses 4-12 move up and down under the drive of the top plate 4-10. The seed and fertilizer liquid is dropped from the hoses 4-12 onto the rapeseed in the grooves 4-14, so that 5-7 rapeseeds are combined into a block through the seed and fertilizer liquid. The rapeseed tank 5 comprises a tank body 5-1. A flat nozzle 5-2 is arranged on the front side of the tank body 5-1 and is connected with the inlet of the rapeseed coating mechanism 4. The rapeseed enters the inlet chute 4-3 from the flat nozzle 5-2 and then enters the grooves 4-14. The coated rapeseed enters the distribution hopper 3-4 from the outlet chute and is sown under the action of the sowing acceleration mechanism 3. When the whole device works, the agricultural unmanned aerial vehicle 1 flies. The rapeseed is coated into a block by the rapeseed coating mechanism 4. The coated seed is sown in a straight trajectory by the sowing acceleration mechanism 3, which solves the problems of inaccurate seed landing position, difficult seed quantity control, seed falling trajectory deviation under the influence of airflow, and seed breakage in the conveying process.

[0038] Embodiment 2: a seeding device for strip seeding of oilseed rape by unmanned aerial vehicle, also comprising an agricultural unmanned aerial vehicle 1, the bottom of which is bolted to a plastic housing 2-1 of a seeding mechanism 2. The seeding mechanism 2 is internally divided into an oilseed rape coating mechanism 4, an oilseed rape bin 5 and a seeding acceleration mechanism 3, which are respectively located in the middle section, the rear side and the bottom surface. The rear side of the top surface of the plastic housing 2-1 of the seeding mechanism 2 is provided with an oilseed rape feeding port 2-2, which is sealed with a bottle cap, and the front side is provided with a liquid injection port for supplementing the seed-fertilizer liquid of the seed-fertilizer liquid tank 4-11 of the oilseed rape coating mechanism 4. In the seeding acceleration mechanism 3, a plurality of distribution hoppers 3-4 are inlaid in the bottom opening of the plastic housing 2-1 in an orderly manner, and each distribution hopper 3-4 is connected to a plastic pipe 3-5 with a rifling 3-6. An air pump 3-1 is fixed to the front side of the plastic housing 2-1, connected to the distribution hopper 3-4 through an air pipe 3-2 and a manifold 3-3, and the manifold 3-3 is inserted into the distribution hopper 3-4 obliquely, and the opening is sealed with sealant. The air pump 3-1 provides intermittent pulse air supply, and the connection between the air pipe 3-2 and the manifold 3-3 is provided with a solenoid valve controlled by the control board of the agricultural unmanned aerial vehicle 1. During seeding, the air pump 3-1 generates airflow, which enters the distribution hopper 3-4 through the air pipe 3-2 and the manifold 3-3, pushes the oilseed rape into the plastic pipe 3-5, and the oilseed rape rotates under the action of the rifling 3-6, falls along a straight trajectory, and reduces the influence of airflow on the seeding direction.

[0039] In the rapeseed coating mechanism 4, the base 4-1 is fixed with support plates 4-8 and side support plates 4-15 on both sides, and a roller 4-2 is installed in the middle. The surface of the roller 4-2 has multiple rows of grooves 4-14. A servo motor 4-7 is installed on the left side of the support plate 4-8, and its output shaft is connected to a circular disc 4-5. The circular disc 4-5 is connected to a turntable 4-4 through a lever 4-6, and the turntable 4-4 is connected to a slider in the sliding groove on the right side of the support plate 4-8 through a connecting rod 4-9. A top plate 4-10 is fixed on the right side of the slider, and the top plate 4-10 has a through hole. A seed and fertilizer liquid tank 4-11 is above the roller 4-2, and a hose 4-12 passes through the through hole of the top plate 4-10 and is inserted into the groove 4-14. The seed and fertilizer liquid tank 4-11 has a liquid level sensor. The support plate 4-8 and the side support plate 4-15 are respectively provided with an inlet chute 4-3 and an outlet chute. The inlet chute 4-3 is connected to a flat nozzle 5-2 of a rapeseed tank 5, and the outlet chute is connected to the top end of a distribution hopper 3-4. The servo motor 4-7 works to drive the circular disc 4-5 to rotate, and through the lever 4-6 and the turntable 4-4, the connecting rod 4-9 drives the slider to move up and down, and the top plate 4-10 moves with it. The hose 4-12 moves up and down under the drive of the top plate 4-10, and the seed and fertilizer liquid is dropped into the groove 4-14 on the rapeseed, so that 5-7 rapeseeds are clustered into a block. The front flat nozzle 5-2 of the rapeseed tank 5 is connected to the inlet chute 4-3, and the rapeseed enters the inlet chute 4-3 from the flat nozzle 5-2, and then enters the groove 4-14. The coated rapeseed enters the distribution hopper 3-4 from the outlet chute and is sown under the action of the sowing acceleration mechanism 3. During the flight of the agricultural unmanned aerial vehicle 1, the rapeseed coating mechanism 4 coats the rapeseed, reduces the collision during transportation, reduces the seed breakage rate, and the sowing acceleration mechanism 3 enables the seed to be sown in a straight trajectory, solves the problems of inaccurate seed landing, difficult control of sowing amount, influence of air flow on landing trajectory, and easy breakage of seeds, and improves the sowing quality and efficiency.

[0040] According to the above-mentioned preferred technical scheme content, the working process of the technical scheme is described: the agricultural unmanned aerial vehicle 1 takes off and flies to the target sowing area, the rapeseed in the rapeseed tank 5 enters the feed slot 4-3 of the rapeseed coating mechanism 4 through the flat nozzle 5-2, and then falls into the multiple rows of grooves 4-14 arranged in a ring shape on the outer circle surface of the roller 4-2. The servo motor 4-7 is started, and the output shaft drives the circular disc 4-5 to rotate. The lever 4-6 connected to the right side of the circular disc 4-5 deviates from the center position and rotates, and the right end of the lever 4-6 is connected to the left side of the rotating disc 4-4 deviating from the center position, thereby driving the rotating disc 4-4 to rotate. The rotating disc 4-4 drives the connecting rod 4-9 to slide up and down on the sliding block in the right side sliding groove of the supporting plate 4-8, and the top plate 4-10 moves up and down with the sliding block. The multiple hoses 4-12 extending from the rear side of the seed fertilizer tank 4-11 above the groove 4-14 spray seed fertilizer liquid to the rapeseed in the groove 4-14 through the internal through hole of the top plate 4-10. The fertilized rapeseed enters the distribution hopper 3-4 through the discharge slot; the air pump 3-1 supplies air intermittently, and the air flow is transmitted to the manifold 3-3 connected by the joint and inserted into the inner cavity of the distribution hopper 3-4 through the air pipe 3-2. The air flow drives the fertilized rapeseed in the distribution hopper 3-4 to enter the plastic pipe 3-5, and the multiple grooves 3-6 on the inner cavity side wall of the plastic pipe 3-5 make the fertilized rapeseed rotate during the discharging process, so that the sowing direction is straight, and finally the fertilized rapeseed is sown downward, avoiding the air flow of the agricultural unmanned aerial vehicle 1 and the air flow to cause deviation of the sowing direction. The electromagnetic valve installed at the connection position between the air pipe 3-2 and the manifold 3-3 can control the air flow supply under the control of the main board of the agricultural unmanned aerial vehicle 1. When the solution in the seed fertilizer tank 4-11 is insufficient, the solution can be supplemented through the liquid injection port arranged on the front side surface of the plastic shell 2-1, and the bottle cap screwed in the port of the rapeseed inlet 2-2 can prevent the rapeseed from spilling out when the rapeseed is not added.

[0041] The above specific embodiments are only an explanation of the application, and are not a limitation of the application. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the application.

Claims

1. A sowing device for strip sowing of oilseed rape by unmanned aerial vehicles, comprising an agricultural unmanned aerial vehicle (1), characterized in that: The bottom of the agricultural unmanned vehicle (1) is hung with a seeding mechanism (2), the inner cavity middle section of the seeding mechanism (2) is provided with a vegetable seed coating mechanism (4), the rear side of the inner cavity of the seeding mechanism (2) is provided with a vegetable seed bin (5), and the bottom surface of the seeding mechanism (2) is provided with a seeding acceleration mechanism (3); The seeding mechanism (2) comprises a plastic shell (2-1) and a vegetable seed feeding port (2-2) arranged at the rear side position of the top surface of the plastic shell (2-1). The seeding acceleration mechanism (3) comprises a row of distribution hoppers (3-4) embedded and fixed on the bottom surface of the plastic shell (2-1), and a gas pump (3-1) fixed on the front side surface of the plastic shell (2-1), and the bottom end ports of the distribution hoppers (3-4) are all connected with plastic pipes (3-5), the gas supply end nozzle of the gas pump (3-1) is connected with a gas pipe (3-2), and the distal end of the gas pipe (3-2) is connected with a plurality of manifold pipes (3-3) obliquely inserted into the distribution hoppers (3-4) and the inner cavities of the distribution hoppers (3-4) through a joint. The vegetable seed coating mechanism (4) comprises a base (4-1), a support plate (4-8) fixed on the left side of the base (4-1), and a side support plate (4-15) fixed on the right side of the base (4-1), a roller (4-2) is rotatably arranged between the support plate (4-8) and the side support plate (4-15), a plurality of rows of grooves (4-14) are annularly arranged on the outer ring surface of the roller (4-2), a servo motor (4-7) is fixed on the left side of the support plate (4-8), the output shaft of the servo motor (4-7) penetrates through the support plate (4-8) and is connected with a circular disc (4-5), and a lever (4-6) is rotatably connected with the right side of the circular disc (4-5) deviating from the center position. A connecting rod (4-9) is slidably connected to the right side of the support plate (4-8), a rotating disc (4-4) is rotatably connected to the bottom end of the connecting rod (4-9), the right end of the lever (4-6) is rotatably connected with the left side of the rotating disc (4-4) deviating from the center position, and a seed and fertilizer liquid tank (4-11) is arranged on the top of the roller (4-2), a plurality of hoses (4-12) extending from the rear side of the seed and fertilizer liquid tank (4-11) are arranged above the grooves (4-14). The vegetable seed bin (5) comprises a bin body (5-1) and a flat nozzle (5-2) fixed on the front side of the bin body (5-1) and connected with the feeding port of the vegetable seed coating mechanism (4).

2. The seed planting device for strip planting of rapeseed by unmanned aerial vehicle according to claim 1, characterized in that: The top surface of the plastic shell (2-1) is fixed on the bottom surface of the agricultural unmanned vehicle (1) by bolts, and the front side surface of the plastic shell (2-1) is provided with a liquid injection port for supplementing the solution of the seed and fertilizer liquid tank (4-11).

3. The seed planting device for strip planting of rapeseed by unmanned aerial vehicle according to claim 1, characterized in that: The bottom surface of the plastic shell (2-1) is provided with openings for embedding and fixing the distribution hoppers (3-4) side by side, and a bottle cap is screwed in the port of the vegetable seed feeding port (2-2).

4. The seed planting device for strip planting of rapeseed by unmanned aerial vehicle according to claim 1, characterized in that: The front side wall of the distribution hopper (3-4) is provided with an opening for the inclined insertion of the manifold (3-3), the gap between the opening and the manifold (3-3) is filled with sealing glue, and the manifold (3-3) is inclined through the gap to drive the rapeseed in the distribution hopper (3-4) into the plastic pipe (3-5) by air flow and accelerate downward seeding, thereby avoiding the deviation of the seeding direction caused by the air flow of the agricultural unmanned aerial vehicle (1) and the air flow.

5. The seed planting device for strip planting of rapeseed by unmanned aerial vehicle according to claim 1, characterized in that: The air pump (3-1) is an intermittent pulse air supply, and the connection position between the air pipe (3-2) and the manifold (3-3) is provided with an electromagnetic valve controlled by the control board of the agricultural unmanned aerial vehicle (1).

6. The seed planting apparatus for strip planting of rapeseed by unmanned aerial vehicle according to claim 1, characterized in that: The inner cavity side wall of the plastic pipe (3-5) is provided with a plurality of rifling (3-6) for rotating the rapeseed after fertilization during the discharging process to make the seeding direction more straight.

7. The seed planting apparatus for strip planting of rapeseed by unmanned aerial vehicle according to claim 1, characterized in that: The right side surface of the support plate (4-8) is fixed with a sliding groove, the inside of the sliding groove slides up and down a sliding block, and the top end of the connecting rod (4-9) is rotatably connected with the right side wall of the sliding block.

8. The seed planting apparatus for strip planting of rapeseed by unmanned aerial vehicle according to claim 7, characterized in that: The right side wall of the sliding block is fixedly connected with a top plate (4-10), and a plurality of through holes are formed in the inside of the top plate (4-10) for the penetration of the hose (4-12) and the insertion of the recess (4-14).

9. The seed planting apparatus for strip planting of rapeseed by unmanned aerial vehicle according to claim 1, characterized in that: The support plate (4-8) and the side support plate (4-15) are respectively fixed with an inlet chute (4-3) and an outlet chute on the side close to each other, the inlet chute (4-3) is connected with the flat nozzle (5-2), and the outlet chute is connected with the top port of the distribution hopper (3-4).

10. The seed planting apparatus for strip planting of rapeseed by unmanned aerial vehicle according to claim 1, characterized in that: The top of the support plate (4-8) and the side support plate (4-15) is fixed with a fixed plate (4-13), and a liquid level sensor is installed in the inner cavity of the seed fertilizer liquid tank (4-11).

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