Automatic seeding unmanned aerial vehicle with seed protection device

Abstract

The invention belongs to the technical field of seeding equipment, and discloses an automatic seeding unmanned aerial vehicle with a seed protection device, the automatic seeding unmanned aerial vehicle comprises a storage bin and a flight assembly arranged at the top of the storage bin, a fixing frame is fixedly mounted in the storage bin, and a lifting frame is vertically and slidably arranged in the fixing frame; downward pressing assemblies are arranged at the four corners of the lifting frame, two lifting assemblies are symmetrically installed on the two sides of the lifting frame, and a plurality of stacked seed boxes are arranged above the two lifting assemblies; the seed box comprises a push plate and a plurality of conical barrels fixed to the bottom of the push plate and used for storing seeds, and the seed box is made of degradable materials. According to the device, the lifting assembly and the pressing assembly insert the seed box into the land through lifting of the lifting frame, the seed box provides sufficient nutrients for seeds to enable the seeds to grow robustly in the seedling stage, and after the seed box is degraded, the seeds also live through the dangerous seedling stage, so that the survival rate of the seeds is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of sowing equipment, and in particular relates to an automatic sowing drone with a seed protection device. Background Art

[0002] Most of the existing automatic seeding drones use the drone's flight and sowing devices to sow seeds directly into the ground. The seeds absorb nutrients from the ground to grow, but the seeds may be unevenly spread. Some areas may compete for nutrients, causing some seeds to be unable to absorb enough nutrients, making it difficult for them to survive the seedling stage, resulting in a low seed survival rate. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic seeding drone with a seed protection device to solve the problem of low seed survival rate of existing automatic seeding drones.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An automatic seeding drone with a seed protection device comprises a storage bin and a flight assembly arranged on the top of the storage bin, wherein a fixing frame is fixedly installed in the storage bin, a lifting frame is vertically slidably arranged in the fixing frame, a pressing assembly is arranged at each of the four corners of the lifting frame, two lifting assemblies are symmetrically installed on both sides of the lifting frame, and a plurality of stacked seed boxes are arranged above the two lifting assemblies;

[0006] The lifting assembly includes a lifting frame fixedly mounted on the outside of the lifting frame and two lifting plates symmetrically rotatably connected to one side of the lifting frame;

[0007] The pressing assembly comprises a mounting frame fixedly mounted on the outside of the lifting frame and a rotating plate horizontally rotatably connected to the mounting frame, and the end of the rotating plate is rotatably connected to a pressing plate;

[0008] The seed box includes a push plate and a plurality of conical barrels for storing seeds fixed to the bottom of the push plate, and the tips of the plurality of conical barrels are all set downward. The seed box is made of degradable material, and the push plate of the seed box located at the bottom is located between a plurality of lifting plates and a plurality of pressure plates.

[0009] Preferably, a turntable is rotatably provided on the top of the fixed frame, and two movable frames are slidably connected to both sides of the fixed frame. Two first connecting rods are rotatably connected between the ends of the two movable frames and the tops of two of the mounting frames in a one-to-one correspondence. Slide grooves are provided on the two movable frames, and two fixed rods are fixedly installed on the bottom of the turntable, and the two fixed rods are slidably fitted in the two slide grooves respectively.

[0010] Preferably, the flight assembly includes a fixing seat fixed to the top of the storage bin and four wings fixedly installed on the outside of the fixing seat, the four wings are arranged in a circumferential array, and propellers are rotatably provided at the ends of the four wings.

[0011] Preferably, gears are coaxially fixedly installed on the two lifting plates, two slides are symmetrically slidably connected inside the lifting frame, racks are fixedly installed on one side of the two slides, and the two racks are meshingly connected with the two gears in a one-to-one correspondence.

[0012] Preferably, a sliding rod is slidably connected inside the lifting frame, a baffle is fixedly installed on the top of the sliding rod, the bottom of the sliding rod extends out of the lifting frame, and a bottom plate is fixedly installed on the bottom of the sliding rod, a fixed block is fixedly installed in the middle of the sliding rod, a fourth connecting rod is rotatably connected between the fixed block and the two slides, and a second spring is fixedly installed between the top of the baffle and the lifting frame.

[0013] Preferably, a guide rod is fixedly mounted on the mounting frame, a slide is slidably connected to the outer side of the guide rod, and a third connecting rod is rotatably connected between one end of the slide and one side of the rotating plate.

[0014] Preferably, a fixing plate is fixedly mounted on the end of the guide rod, two second connecting rods are rotatably connected between the other end of the slide and the fixing plate, a first spring is fixedly connected between the fixing plate and the slide, and the first spring is sleeved on the outside of the guide rod.

[0015] Preferably, a fixing rod is fixedly mounted on the fixing frame above each group of the second connecting rods.

[0016] Preferably, a slider is slidably connected inside the rotating plate, a moving rod is fixedly mounted on one side of the slider, a guide groove with a spiral structure is opened at the end of the pressure plate, and the moving rod is slidably fitted in the guide groove.

[0017] Preferably, a screw is rotatably connected inside the rotating plate, and the screw is screwed through the sliding block.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention is provided with a seed box. When the drone is sowing seeds, the seeds are placed in the seed box in advance. The lifting assembly and the pressing assembly are lifted and lowered by the lifting frame to insert the seed box into the soil in sequence. The seed box provides sufficient nutrients for the seeds to thrive in the seedling stage. When the seed box is degraded, the seeds have passed the dangerous seedling stage and can adapt to the land environment of the planting site, thereby improving the survival rate of the seeds.

[0020] (2) The present invention is provided with a slide bar, a baffle, a second spring and a bottom plate. When the lifting assembly and the pressing assembly insert the seed box into the soil, the bottom plate first contacts the ground and pushes up the slide bar to make the baffle compress the second spring. At the same time, the fixed block drives the two slide plates to move the two racks toward the middle through the two fourth connecting rods, so that the two gears drive the two lifting plates to rotate to both sides respectively, so that the lifting plates will not block the lowest seed box from being inserted into the soil. After the seed box is inserted into the soil, the lifting frame drives the lifting frame and the lifting plate to move up. Due to the elastic force of the second spring, the baffle pushes the slide bar to move downward relative to the lifting frame, so that the fixed block pushes the corresponding slide plates and racks to move to both sides through the two fourth connecting rods, so that the two gears drive the two lifting plates to gradually rotate and reset toward the middle. Since the lifting plate is raised and rotated at the same time, the lifting plate will not affect the seed box that has been inserted into the soil, so that the automatic disengagement and reset of the lifting plate can be achieved, thereby improving efficiency.

[0021] (3) The present invention is provided with a slide, a second connecting rod, a third connecting rod and a first spring. After the lifting assembly and the pressing assembly insert the seed box into the soil, when the lifting frame moves upward relative to the fixed frame, the mounting frame drives the rotating plate and the pressure plate to move upward, thereby separating the upper seed box from the seed box that has been inserted into the soil. At the same time, the mounting frame drives the slide and the fixed plate to move upward through the guide rod, so that the tops of the two second connecting rods are close to the fixed rod on the fixed frame. The fixed rod prevents the tops of the second connecting rods from moving upward, thereby allowing the two second connecting rods to push the slide to slide. The slide and the fixed plate stretch the first spring. At the same time, the third connecting rod at the end of the slide pulls the rotating plate to rotate, thereby driving the pressure plate to gradually move to one side of the seed box. The seed box falls onto the lifting plate that has been reset due to gravity. At this time, the lifting frame is moved downward relative to the fixed frame. Under the elastic force of the first spring, the slide is gradually reset. At the same time, the third connecting rod also drives the rotating plate to drive the pressure plate to move above the seed box. In this way, the stacked seed boxes can be inserted into the soil one by one, which is convenient for continuous sowing and improves efficiency.

[0022] (4) As mentioned above, the disengagement and reset of the lifting plate in the lifting assembly and the rotation and reset of the rotating plate in the pressing assembly can be achieved only by the reciprocating lifting of the lifting frame. There is no need to set up separate driving devices respectively. The structure is compact, which can reduce the manufacturing cost of the equipment and the weight of the equipment itself, thereby increasing the endurance of the UAV and improving efficiency.

[0023] (5) The present invention is provided with a slider and a guide groove. The slider is moved in the rotating plate by rotating the screw rod, so that the moving rod on one side of the slider moves in the guide groove of the spiral structure, thereby pushing the pressure plate to rotate. In this way, the distance between the bottom of the pressure plate and the top of the lifting plate can be adjusted to be equal to the thickness of the push plate of the seed box, so that the pressure plate can press the seed box down as much as possible, avoiding the lifting plate from colliding with the seed box that has been inserted into the ground when resetting. In addition, it can also be applicable to seed boxes of different thickness specifications, thereby increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a first stereogram of the present invention;

[0025] Figure 2 is a second stereogram of the present invention;

[0026] Figure 3 is a cross-sectional view of the present invention;

[0027] Figure 4 It is a stereogram of the fixing frame assembly of the present invention;

[0028] Figure 5 A first stereogram of the lifting frame assembly of the present invention;

[0029] Figure 6 A second stereogram of the lifting frame assembly of the present invention;

[0030] Figure 7 It is a cross-sectional view of the lifting frame assembly of the present invention;

[0031] Figure 8 A first stereogram of the lifting plate assembly of the present invention;

[0032] Fig. 9 A second stereogram of the lifting plate assembly of the present invention;

[0033] Fig.10 A first stereogram of the mounting frame of the present invention is provided;

[0034] Fig.11 A second stereogram of the mounting frame of the present invention is assembled;

[0035] Fig.12 It is a cross-sectional view of the rotating plate assembly of the present invention;

[0036] Fig.13 It is a stereogram of the assembly of the pressing plate of the present invention;

[0037] In the figure: 1-storage bin, 2-fixed seat, 3-wing, 4-propeller, 5-seed box, 6-fixed rod, 7-slide, 8-mounting frame, 9-fixed frame, 10-guide rod, 11-first connecting rod, 12-turntable, 13-moving frame, 14-lifting frame, 15-lifting plate, 16-bottom plate, 17-lifting frame, 18-fixed rod, 19-fixed plate, 20-first spring, 21-second connecting rod, 22-third connecting rod, 23-rotating plate, 24-pressing plate, 25-slide plate, 26-gear, 27-rack, 28-screw, 29-slide bar, 30-fourth connecting rod, 31-baffle, 32-second spring, 33-fixed block, 34-sliding block, 35-guide groove. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 13 As shown, the present invention provides the following technical solutions:

[0040] An automatic seeding drone with a seed protection device comprises a storage bin 1 and a flight assembly arranged on the top of the storage bin 1, a fixed frame 9 is fixedly installed in the storage bin 1, a lifting frame 14 is vertically slidably arranged in the fixed frame 9, a pressing assembly is arranged at each of the four corners of the lifting frame 14, two lifting assemblies are symmetrically installed on both sides of the lifting frame 14, and a plurality of stacked seed boxes 5 are arranged above the two lifting assemblies;

[0041] The lifting assembly includes a lifting frame 17 fixedly mounted on the outside of the lifting frame 14 and two lifting plates 15 symmetrically rotatably connected to one side of the lifting frame 17;

[0042] The pressing assembly includes a mounting frame 8 fixedly mounted on the outside of the lifting frame 14 and a rotating plate 23 horizontally rotatably connected to the mounting frame 8, and a pressing plate 24 is rotatably connected to the end of the rotating plate 23;

[0043] The seed box 5 includes a push plate and a plurality of conical barrels for storing seeds fixed to the bottom of the push plate, and the tips of the plurality of conical barrels are all set downward. The seed box 5 is made of degradable material, and the push plate of the seed box 5 located at the bottom is located between a plurality of lifting plates 15 and a plurality of pressure plates 24.

[0044] Based on the above public structure, when the drone is sowing:

[0045] First, bury the seeds in the conical barrels in the multiple seed boxes 5 in advance, and the nutrients in the conical barrels are sufficient for the seeds to survive the seedling stage. Stack the multiple seed boxes 5 and place them between the fixed frames 9 in the storage bin 1, and make the multiple lifting plates 15 support the push plate of the lowest seed box 5, so as to support the stacked multiple seed boxes 5, and rotate the rotating plate 23 to move the pressure plate 24 to the top of the push plate of the lowest seed box 5, and then use the flying assembly to drive the storage bin 1 to move above the land to be sown, so that the fixed frame 9 and the lifting frame 14 drive the lifting assembly and the pressing assembly as well as the stacked multiple seed boxes 5 to move above the land to be sown, and then the flying assembly moves downward to make the storage bin 1 drive the fixed frame 9 and the lifting frame 14 to move downward, so that the multiple pressing plates 24 of the pressing assembly push the lowest seed box 5 into the land, and at the same time, the lifting plate 15 of the lifting assembly is rotated out from the bottom of the seed box 5 to avoid hindering the insertion of the seed box 5 into the land;

[0046] After the lowest seed box 5 is inserted into the soil, the flying assembly drives the storage bin 1 to move upward, and the fixing frame 9 drives the lifting frame 14 to drive the lifting assembly and the pressing assembly to move upward, so that the multiple rotating plates 23 and the pressing plates 24 drive the upper seed box 5 to separate from the seed box 5 that has been inserted into the soil, and at the same time, the multiple lifting plates 15 of the lifting assembly are rotated again to the bottom of the seed box 5 in the storage bin 1, and then the multiple rotating plates 23 are rotated to make the multiple rotating plates 23 and the multiple pressing plates 24 rotate out from the bottom of the seed box 5, and the seed box 5 falls onto the multiple lifting plates 15 below due to gravity, and then the multiple rotating plates are rotated in the opposite direction, so that the multiple rotating plates 23 and the multiple pressing plates 24 are rotated to the top of the seed box 5 supported by the lifting plates 15;

[0047] Then, the flying assembly is used to drive the storage bin 1 and the multiple seed boxes 5 therein to move successively to the tops of the multiple plots of land to be sown, and the above sowing process is repeated, so that the multiple stacked seed boxes 5 are inserted into the land successively to realize continuous sowing.

[0048] Preferably, the seed box 5 provides sufficient nutrients for the seeds to facilitate their growth in the seedling stage. When the seed box 5 is degraded, the seeds in the seed box 5 have also passed the dangerous seedling stage, so that the seeds can adapt to the land environment of the planting site, thereby improving the survival rate of the seeds.

[0049] In addition, regarding the flight assembly, the flight assembly preferably includes a fixing seat 2 fixed to the top of the storage bin 1 and four wings 3 fixedly installed on the outside of the fixing seat 2, the four wings 3 are arranged in a circumferential array, and the ends of the four wings 3 are all rotatably provided with propellers 4. Based on this, the flight of the flight assembly is achieved by controlling the rotation frequency of the four propellers 4 respectively to control the lift generated by the rotation of the four propellers 4 respectively, thereby driving the inclination and lifting of the four wings 3 and the fixing seat 2, and then realizing the translation, lifting and descending of the flight assembly, thereby driving the storage bin 1 to fly.

[0050] As mentioned above, regarding the rotation of the lifting plate 15 and the rotating plate 23, it is preferred to have the following structure:

[0051] Gears 26 are coaxially fixedly installed on the two lifting plates 15, two slide plates 25 are symmetrically slidably connected in the lifting frame 17, racks 27 are fixedly installed on one side of the two slide plates 25, and the two racks 27 are meshed and connected with the two gears 26 in a one-to-one correspondence;

[0052] A slide rod 29 is slidably connected inside the lifting frame 17, a baffle 31 is fixedly installed on the top of the slide rod 29, the bottom of the slide rod 29 extends out of the lifting frame 17, and a bottom plate 16 is fixedly installed on the bottom of the slide rod 29, a fixed block 33 is fixedly installed in the middle of the slide rod 29, a fourth connecting rod 30 is rotatably connected between the fixed block 33 and the two slide plates 25, and a second spring 32 is fixedly installed between the top of the baffle 31 and the lifting frame 17.

[0053] As can be seen from the above, when the flying assembly moves downward so that the storage bin 1 drives the fixing frame 9 and the lifting frame 14 to move downward so that the seed box 5 is inserted into the ground, the tip of the conical barrel at the bottom of the seed box 5 is inserted into the ground until the bottom of the storage bin 1 contacts the ground, and then the lifting frame 14 continues to move downward in the fixing frame 9, and the bottom plate 16 under the lifting frame 17 contacts the ground first, and the lifting frame 14 continues to move downward so that the bottom plate 16 pushes the slide bar 29 to slide upward in the lifting frame 17, so that the baffle 31 at the top of the slide bar 29 and the lifting frame 17 compress the second elastic The spring 32, at the same time, the slide bar 29 drives the fixed block 33 in the middle to move upward in the lifting frame 17, thereby driving the two slide plates 25 to move toward the middle through the two fourth connecting rods 30, and then driving the two racks 27 to move toward the middle, through the meshing transmission of the two racks 27 and the two gears 26, so that the two gears 26 drive the two lifting plates 15 to rotate to both sides, before the bottom of the lifting frame 14 contacts the ground, the two lifting plates 15 have been rotated out from under the seed box 5, so as to avoid hindering the lowest seed box 5 from being inserted into the ground;

[0054] After the lowest seed box 5 is inserted into the soil, the lifting frame 14 is raised in the fixed frame 9, and the lifting frame 14 drives the lifting frame 17 and multiple lifting plates 15 to rise. Due to the elastic force of the second spring 32, the baffle 31 pushes the slide bar 29 to gradually move downward, so that the fixed block 33 pushes the two slides 25 through the two fourth connecting rods 30 to drive the two racks 27 to slide to both sides, and then the two gears 26 drive the two lifting plates 15 to rotate toward the middle until the bottom plate 16 is separated from the ground to realize the reset of the lifting plate 15. In this process, the lifting plate 15 is in a state of rising and rotating. When the edge of the lifting plate 15 rotates to the edge of the seed box 5, the lifting plate 15 is already above the seed box 5 that has been inserted into the soil, thereby realizing the automatic disengagement and reset of the lifting plate. Then when the flying assembly drives the storage bin 1 to rise, the fixed frame 9 and the lifting frame 14 can drive the remaining seed boxes 5 to move to the downward sowing position.

[0055] In addition, regarding the rotation of the rotating plate 23, it is preferred to have the following structure:

[0056] A guide rod 10 is fixedly mounted on the mounting frame 8, a slide 7 is slidably connected to the outer side of the guide rod 10, and a third connecting rod 22 is rotatably connected between one end of the slide 7 and one side of the rotating plate 23;

[0057] A fixing plate 19 is fixedly mounted on the end of the guide rod 10, two second connecting rods 21 are rotatably connected between the other end of the slide 7 and the fixing plate 19, a first spring 20 is fixedly connected between the fixing plate 19 and the slide 7, and the first spring 20 is sleeved on the outside of the guide rod 19;

[0058] A fixing rod 6 is fixedly mounted on the fixing frame 9 above each set of second connecting rods 21 .

[0059] As can be seen from the above, after the lowest seed box 5 is inserted into the soil and planted, when the lifting frame 14 rises in the fixed frame 9, the pressure plate 24 and the rotating plate 23 rise and contact the bottom of the upper seed box 5. As the lifting frame 14 continues to rise, the upper seed box 5 is gradually separated from the seed box 5 that has been inserted into the soil. At the same time, the mounting frame 8 on the lifting frame 14 gradually approaches the fixed rod 6 on the fixed frame 9, so that the guide rod 10 drives the slide 7 and the fixed plate 19 to approach the fixed rod 6 until the top of the two second connecting rods 21 between the slide 7 and the fixed plate 19 contact the top of the fixed rod 6. Then the lifting frame 14 continues to rise in the fixed frame 9, so that the guide rod 10 and the fixed rod 6 squeeze the two second connecting rods 21, so that one of the second connecting rods 21 pushes the slide 7 to slide on the outside of the guide rod 10, and at the same time stretches the first spring 20. The end of the slide 7 passes through the third connecting rod 22. Pull the rotating plate 23 to rotate horizontally on the mounting frame 8, thereby driving the pressure plate 24 to rotate and move to the outside of the seed box 5, so that the rotating plate 23 and the pressure plate 24 no longer support the upper seed box 5, and the upper seed box 5 falls to the multiple lifting plates 15 that have been reset below due to gravity, and then the lifting frame 14 is lowered in the fixed frame 9, so that the lifting frame 14 drives the mounting frame 8 and the guide rod 10 away from the fixed rod 6, so that under the elastic force of the stretched first spring 20, the slide 7 moves on the guide rod 10 toward the fixed plate 19, so that the end of the slide 7 pushes the rotating plate 23 to rotate through the third connecting rod 22, so that the rotating plate 23 drives the pressure plate 24 to move to the top of the seed box 5 supported by the lifting plate 15 at this time, so that the above-mentioned sowing operation can be repeated, and the stacked seed boxes 5 can be inserted into the soil one by one to achieve continuous sowing and improve efficiency.

[0060] In addition, regarding the up and down movement of the lifting frame 14 in the fixed frame 9, a rotating disk 12 is provided on the top of the fixed frame 9, and two mobile frames 13 are slidably connected on both sides of the fixed frame 9. The ends of the two mobile frames 13 are rotatably connected to the tops of two mounting frames 8 in a one-to-one manner. Two first connecting rods 11 are rotatably connected, and two sliding grooves are provided on the two mobile frames 13. Two fixed rods 18 are fixedly installed at the bottom of the rotating disk 12, and the two fixed rods 18 are respectively slidably matched in the two sliding grooves. Based on this, by driving the rotating disk 12 to rotate, the two fixed rods 18 are driven to rotate around the axis of the rotating disk 12, so that the two fixed rods push the two mobile frames 13 to move relatively in the fixed frame 9 through the two sliding grooves, thereby driving one end of the two first connecting rods 11 to move relatively. When the angle between the first connecting rod 11 and the horizontal direction increases, the other ends of the two first connecting rods 11 push the lifting frame 14 downward through the two mounting frames 8; conversely, when the angle between the first connecting rod 11 and the horizontal direction decreases, the other ends of the two first connecting rods 11 pull the lifting frame 14 upward through the two mounting frames 8.

[0061] In addition, regarding the rotation adjustment of the pressing plate 24, it is preferred to have the following structure:

[0062] A slider 34 is slidably connected inside the rotating plate 23, a moving rod is fixedly installed on one side of the slider 34, and a guide groove 35 with a spiral structure is opened at the end of the pressing plate 24, and the moving rod is slidably matched in the guide groove 35;

[0063] A screw rod 28 is rotatably connected inside the rotating plate 23 , and the screw rod 28 is screwed into and penetrates the sliding block 34 .

[0064] As can be seen from the above, the screw 28 is rotated on one side of the rotating plate 23, so that the slider 34 of the screw 28 that is screwed into the connecting rod slides in the rotating plate 23, and at the same time drives the moving rod on one side of the slider 34 to slide in the guide groove 35 of the spiral structure at the end of the pressure plate 24, thereby pushing the pressure block 24 to rotate at the end of the rotating plate 23, so as to adjust the distance between the bottom of the pressure plate 24 and the top of the lifting plate 15 to be equal to the thickness of the push plate of the seed box 5, so that the pressure plate 24 can push the seed box 5 down as much as possible, which can avoid colliding with the seed box 5 that has been inserted into the ground when the lifting frame 14 rises and the lifting plate 15 is reset, and it can also be applied to seed boxes 5 of different thickness specifications, thereby increasing practicality.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic seeding drone with a seed protection device, characterized in that: The invention comprises a storage bin (1) and a flying assembly arranged on the top of the storage bin (1); a fixing frame (9) is fixedly installed in the storage bin (1); a lifting frame (14) is vertically slidably arranged in the fixing frame (9); a pressing assembly is arranged at each of the four corners of the lifting frame (14); two lifting assemblies are symmetrically arranged on both sides of the lifting frame (14); and a plurality of stacked seed boxes (5) are arranged above the two lifting assemblies; The lifting assembly comprises a lifting frame (17) fixedly mounted on the outside of the lifting frame (14) and two lifting plates (15) symmetrically rotatably connected to one side of the lifting frame (17); The pressing assembly comprises a mounting frame (8) fixedly mounted on the outside of the lifting frame (14) and a rotating plate (23) horizontally rotatably connected to the mounting frame (8), and the end of the rotating plate (23) is rotatably connected to a pressing plate (24); The seed box (5) comprises a push plate and a plurality of conical barrels for storing seeds fixed to the bottom of the push plate, and the tips of the plurality of conical barrels are all arranged downwards. The seed box (5) is made of a degradable material, and the push plate of the seed box (5) located at the bottom is located between a plurality of lifting plates (15) and a plurality of pressing plates (24).

2. The automatic seeding drone with a seed protection device according to claim 1, characterized in that: A rotating disk (12) is rotatably provided on the top of the fixed frame (9), and two movable frames (13) are slidably connected on both sides of the fixed frame (9). Two first connecting rods (11) are rotatably connected between the ends of the two movable frames (13) and the tops of two of the mounting frames (8) in a one-to-one correspondence. Slide grooves are provided on the two movable frames (13), and two fixed rods (18) are fixedly installed on the bottom of the rotating disk (12), and the two fixed rods (18) are respectively slidably matched in the two slide grooves.

3. The automatic seeding drone with a seed protection device according to claim 1, characterized in that: The flight assembly comprises a fixing seat (2) fixed to the top of the storage bin (1) and four wings (3) fixedly mounted on the outside of the fixing seat (2), the four wings (3) being arranged in a circumferential array, and propellers (4) are rotatably provided at the ends of the four wings (3).

4. The automatic seeding drone with a seed protection device according to claim 1, characterized in that: A gear (26) is coaxially fixedly mounted on the two lifting plates (15), two slide plates (25) are symmetrically slidably connected in the lifting frame (17), a rack (27) is fixedly mounted on one side of the two slide plates (25), and the two racks (27) are meshingly connected with the two gears (26) in a one-to-one correspondence.

5. The automatic seeding drone with a seed protection device according to claim 4, characterized in that: A slide bar (29) is slidably connected inside the lifting frame (17), a baffle (31) is fixedly installed on the top of the slide bar (29), the bottom of the slide bar (29) protrudes out of the lifting frame (17), and a bottom plate (16) is fixedly installed on the bottom of the slide bar (29), a fixed block (33) is fixedly installed in the middle of the slide bar (29), a fourth connecting rod (30) is rotatably connected between the fixed block (33) and the two slide plates (25), and a second spring (32) is fixedly installed between the top of the baffle (31) and the lifting frame (17).

6. The automatic seeding drone with a seed protection device according to claim 1, characterized in that: A guide rod (10) is fixedly mounted on the mounting frame (8), a slide frame (7) is slidably connected to the outside of the guide rod (10), and a third connecting rod (22) is rotatably connected between one end of the slide frame (7) and one side of the rotating plate (23).

7. The automatic seeding drone with a seed protection device according to claim 6, characterized in that: A fixing plate (19) is fixedly mounted on the end of the guide rod (10); two second connecting rods (21) are rotatably connected between the other end of the slide (7) and the fixing plate (19); a first spring (20) is fixedly connected between the fixing plate (19) and the slide (7), and the first spring (20) is sleeved on the outside of the guide rod (19).

8. The automatic seeding drone with a seed protection device according to claim 7, characterized in that: A fixing rod (6) is fixedly mounted on the fixing frame (9) above each group of the second connecting rods (21).

9. The automatic seeding drone with a seed protection device according to claim 1, characterized in that: A slider (34) is slidably connected inside the rotating plate (23), a moving rod is fixedly installed on one side of the slider (34), a guide groove (35) with a spiral structure is opened at the end of the pressure plate (24), and the moving rod is slidably matched in the guide groove (35).

10. The automatic seeding drone with a seed protection device according to claim 9, characterized in that: A screw rod (28) is rotatably connected inside the rotating plate (23), and the screw rod (28) is screwed into and passes through the sliding block (34).

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