An unmanned aerial vehicle with a sowing unit capable of sowing evenly in rows

Abstract

The present invention relates to the technical field of drone seeding, and discloses a drone with seeding units that can sow evenly in rows, including a drone main body and a plurality of seeding units. An aircraft cross bar is arranged on the drone main body, and each seeding unit is detachably installed on the aircraft cross bar; wherein, each seeding unit includes a seeding body, a seed bin and a feeding port are arranged at the top of the seeding body, a discharge port is arranged at the lower part of the seeding body, and a material detection sensor is arranged at the discharge port, and the material sensor is used to detect the outflow of seeds; a roller mechanism is arranged in the seeding body, a blanking channel is arranged under the roller mechanism, an opening is formed between the top of the blanking channel and the lower seed bin, the discharge port is located at the bottom of the blanking channel, a seed holding groove mechanism is arranged on the roller mechanism, and the roller mechanism brings seeds into the blanking channel from the opening through the seed holding groove mechanism on it during rotation, and then discharges them through the discharge port.

Description

Technical Field

[0001] The present invention relates to the technical field of drone seeding, and particularly relates to a drone with a seeding unit that can sow evenly in rows. Background Art

[0002] Drone seeding technology, as an important part of the development of modern agricultural mechanization, has received extensive attention and application in recent years. However, most of the current drone seeding equipment on the market adopts a disordered seeding method, that is, seeds are randomly scattered in the farmland. This method has the following defects:

[0003] I. Insufficient seeding accuracy

[0004] The disordered seeding method results in extremely uneven distribution of seeds in the farmland. In some areas, the seeds are dense, while in some areas, they are sparse, and there may even be blank areas. This uneven seeding not only wastes seed resources but also may lead to inefficient utilization of farmland resources, affecting the overall yield and quality of crops.

[0005] II. Limited crop growth environment

[0006] Due to the uneven distribution of seeds, crops may face different lighting, ventilation, and soil conditions during the growth process. In areas where the seeds are dense, the crops may block each other, resulting in insufficient lighting and poor ventilation, which in turn affects the photosynthesis and nutrient absorption of the crops and increases the risk of pest and disease occurrence. In areas where the seeds are sparse, the crops may grow too lush due to lack of sufficient competition, but they may also face greater risks due to lack of enough neighbors to jointly resist pests and diseases.

[0007] III. Difficulty in pest and disease prevention and control

[0008] The disordered seeding method makes the prevention and control of pests and diseases more difficult. Due to the uneven distribution of crops, pests and diseases may be more likely to break out and spread rapidly in dense areas. At the same time, due to the inconsistent spacing between crops, it may be difficult to achieve uniform coverage when spraying pesticides, thus affecting the prevention and control effect of pests and diseases. This not only increases the amount of pesticides used but also may cause potential harm to the environment and human health.

[0009] IV. Waste of agricultural resources

[0010] The disordered seeding method not only wastes seed resources but also may lead to waste of farmland water resources, fertilizer resources, etc. In areas where the seeds are dense, the competition between crops may lead to excessive consumption of nutrients and water, while in areas where the seeds are sparse, there may be waste of resources due to lack of enough crops to absorb nutrients and water.

[0011] V. Hindrance to the sustainable development of agriculture

[0012] The disordered seeding method is not conducive to the sustainable development of agriculture. Due to the existence of the above-mentioned defects, the stability and sustainability of the farmland ecosystem may be threatened. This not only affects the growth and yield of current crops, but may also have a negative impact on the future development of agriculture.

[0013] In summary, there are many defects in the disordered seeding method of the drone seeding equipment, which seriously affect the efficiency of agricultural production and the quality of crops. Summary of the Invention

[0014] The purpose of the present invention is to provide a drone with seeding units that can sow evenly in rows, aiming to solve the above-mentioned defects, improve seeding accuracy, optimize the crop growth environment, reduce the difficulty of pest and disease control, reduce agricultural resource waste, and promote the sustainable development of agriculture.

[0015] The purpose of the present invention can be achieved through the following technical solutions:

[0016] A drone with seeding units that can sow evenly in rows, including a drone main body and a plurality of seeding units. An aircraft crossbar is provided on the drone main body, and each seeding unit is detachably installed on the aircraft crossbar;

[0017] Among them, each seeding unit includes a seeding body. A seed bin and a feeding port are provided at the top of the seeding body, a discharge port is provided at the lower part of the seeding body, and a material detection sensor is provided at the discharge port. The material sensor is used to detect the outflow of seeds;

[0018] A roller mechanism is provided in the seeding body. A blanking channel is provided under the roller mechanism. An opening is formed between the top of the blanking channel and the lower seed bin. The discharge port is located at the bottom of the blanking channel. A seed holding groove mechanism is provided on the roller mechanism. The roller mechanism brings seeds into the blanking channel from the opening through the seed holding groove mechanism on it during rotation, and then discharges them through the discharge port.

[0019] In one of the solutions, the roller mechanism includes:

[0020] A roller body, the roller body is rotatably installed in the seeding body. A plurality of seed holding groove mechanisms are provided on the roller body. Each seed holding groove mechanism sequentially passes through the opening, the blanking channel and the discharge port during the rotation of the roller body, realizing the carrying, release and seeding of seeds;

[0021] A driving module, the driving module is used to drive the rotation of the roller body, and the driving module is installed on the housing of the seeding body.

[0022] In one of the solutions, the seed holding groove mechanism includes:

[0023] A trough body is provided on the roller body for carrying seeds;

[0024] A trough opening is provided at the bottom of the trough body. When the roller mechanism rotates to the material discharging channel, the trough opening is aligned with the material discharging channel, enabling the seeds in the trough body to fall into the material discharging channel;

[0025] A baffle plate is circumferentially and uniformly distributed along the roller body.

[0026] In one solution, the material discharging channel is arranged as a foldable structure, and the folding point of the material discharging channel is located in the middle of the material discharging channel. When the UAV body is in flight for sowing, the material discharging channel is vertically downward. When the UAV body is landing, the material discharging channel folds upward by 90 degrees.

[0027] In one solution, the material discharging channel includes an upper channel and a lower channel. The bottoms of the lower channels of multiple sowing units are commonly connected to a connecting rod, and the tops of the lower channels are commonly connected to a square tube. The square tube is divided into two sections, and a steering gear is connected to the closer ends of the two sections of the square tube;

[0028] The rotation of the steering gear drives the square tubes on both sides to rotate, and the rotation of the square tubes drives the lower channels to rotate, realizing vertical downward and upward folding by 90 degrees.

[0029] In one solution, a spacing adjusting mechanism is provided between each sowing unit. The spacing adjusting mechanism is used to adjust the distance between each sowing unit, thereby changing the row spacing size during sowing.

[0030] In one solution, the spacing adjusting mechanism includes: two connecting rods. The ends of the two connecting rods are hinged to each other, and the other ends of the two connecting rods are respectively hinged to two sowing units. An adjusting sleeve is commonly provided at the hinged ends of the two connecting rods. The adjusting sleeve is slidably sleeved on a vertical shaft. The adjusting sleeve is fixed to a cross frame through a connecting frame, and automatic telescopic rods are provided at both ends of the cross frame;

[0031] There are two aircraft cross bars. A sliding sleeve is provided on the lower aircraft cross bar. The sliding sleeve is connected to the sowing unit. One of the vertical shafts is fixed to the upper aircraft cross bar, and the other vertical shafts are slidably connected to the upper aircraft cross bar through collar rings. The bottom of the automatic telescopic rod is fixed to the upper aircraft cross bar, and the top is slidably connected to the cross frame.

[0032] In one solution, a pressure sensor is provided at the bottom of the upper channel. When the upper channel is opposite to the lower channel and the material discharge channel is in a vertical state, the blowing component is controlled to work, and the blowing component is located on the motion track of the notch;

[0033] The blowing assembly includes: a No. 1 gear and a No. 2 gear, the No. 1 gear meshing with the No. 2 gear, the No. 1 gear being transmission-connected to the driving module, the No. 2 gear being rotatably mounted in the shell of the sowing body, and one end of the rotating shaft of the No. 2 gear extending to the outside of the sowing body and being fixed with a cam, an extrusion airbag being provided at the bottom of the cam, a one-way air replenishment valve being provided on one side of the airbag, and a one-way air outlet pipe being connected to the other side, an air outlet end of the one-way air outlet pipe extending to the inside of the shell of the sowing body and blowing toward a notch aligned with the feeding channel.

[0034] Beneficial effects of the present invention:

[0035] The present invention mounts multiple sowing units on a drone body and pre-adjusts the spacing between each sowing to serve as the row spacing during sowing. Compared with the existing disorderly sowing method, the present invention uses multiple sowing units to sow in an orderly manner, thereby achieving regular direct sowing in strips and rows, improving field ventilation and lighting conditions, reducing the occurrence of diseases and insect pests in the late stage of traditional disorderly direct sowing crop production, and increasing the seedling rate and effective number of paging of late crops, thereby ultimately achieving the purpose of improving crop growth quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] Figure 1 It is an overall three-dimensional schematic diagram of the present invention;

[0038] Figure 2 for Figure 1 Partial three-dimensional schematic diagram of the ;

[0039] Figure 3 It is a schematic diagram of the three-dimensional structure of the steering gear and the square tube in the present invention;

[0040] Figure 4 Schematic diagram of the internal structure of the sowing unit in the present invention;

[0041] Figure 5 It is a schematic diagram of the three-dimensional structure of the blowing component in the present invention;

[0042] Figure 6 It is a structural schematic diagram of the spacing adjustment mechanism of the present invention;

[0043] Figure 7 It is a schematic diagram of the three-dimensional structure of the roller body in the present invention.

[0044] BRIEF DESCRIPTION OF THE DRAWINGS: 1. UAV body; 2. Sowing unit; 21. Sowing body; 22. Seed bin; 23. Feeding port; 24. Discharging port; 25. Material detection sensor; 26. Roller mechanism; 261. Roller body; 262. Driving module; 27. Feeding channel; 271. Upper channel; 272. Lower channel; 28. Seed holding trough mechanism; 281. Trough body; 282. Trough opening; 283. Baffle; 3. Aircraft crossbar; 4. Connecting rod; 5. Square tube; 6. Servo; 7. Spacing adjustment mechanism; 71. Link; 72. Adjusting sleeve; 73. Vertical shaft; 74. Cross frame; 75. Automatic telescopic rod; 76. Sliding sleeve; 8. Pressure sensor; 9. Blowing assembly; 91. First gear; 92. Second gear; 93. Cam; 94. Extrusion airbag; 95. One-way air supply valve; 96. One-way air outlet pipe. DETAILED IMPLEMENTATION MANNER

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0046] Please refer to Figures 1 - 7 As shown, the present invention is a UAV with a sowing unit 2 and capable of sowing evenly in rows, including a UAV body 1 and a plurality of sowing units 2. An aircraft crossbar 3 is provided on the UAV body 1, and each sowing unit 2 can be detachably installed on the aircraft crossbar 3; as one of the implementation manners, each sowing unit 2 has four clamps, and the sowing unit 2 is installed on the aircraft crossbar 3 through the clamps. The distance between each sowing unit 2 can be adjusted by loosening the clamps, so as to change the row spacing size during sowing;

[0047] Among them, each sowing unit 2 includes a sowing body 21. A seed bin 22 and a feeding port 23 are provided at the top of the sowing body 21, a discharging port 24 is provided at the lower part of the sowing body 21, and a material detection sensor 25 is provided at the discharging port 24. The material sensor is used to detect the outflow of seeds;

[0048] A roller mechanism 26 is arranged inside the seeding body 21. A material discharging channel 27 is arranged below the roller mechanism 26. An opening is formed between the top of the material discharging channel 27 and the seed hopper 22. The discharging port 24 is located at the bottom of the material discharging channel 27. A seed holding groove mechanism 28 is arranged on the roller mechanism 26. The roller mechanism 26 brings seeds into the material discharging channel 27 from the opening through the seed holding groove mechanism 28 thereon during rotation, and then discharges the seeds through the discharging port 24.

[0049] The roller mechanism 26 includes:

[0050] A roller body 261, the shape of the roller body 261 is a straight groove with 5 teeth. The roller body 261 is rotatably installed inside the seeding body 21. A plurality of seed holding groove mechanisms 28 are arranged on the roller body 261. Each seed holding groove mechanism 28 sequentially passes through the opening, the material discharging channel 27 and the discharging port 24 during the rotation of the roller body 261, realizing the carrying, releasing and seeding of seeds.

[0051] As a specific embodiment, the roller body 261 shows diverse morphological settings, such as Figure 7 shown. In these morphologies, the number of teeth, the twisted form and the depth of the groove on the upper part of the roller body 261 are different. This setting takes into account the diversity of sown crops. Especially taking rice as an example, due to the differences in the size and shape of rice seeds, some are larger, some are smaller, and the shapes are also different. Therefore, by adjusting the different morphologies of the roller, the seeding requirements of different rice seeds can be accurately adapted. Through the above settings, not only the seeding accuracy and efficiency are improved, but also different types of rice seeds can be properly sown, thus helping to improve the yield and quality of crops.

[0052] A driving module 262, the driving module 262 is used to drive the roller body 261 to rotate, and the driving module 262 is installed on the housing of the seeding body 21.

[0053] The seed holding groove mechanism 28 includes:

[0054] A groove body 281, the groove body 281 is arranged on the roller body 261 for carrying seeds.

[0055] A groove opening 282, the groove opening 282 is arranged at the bottom of the groove body 281. When the roller mechanism 26 rotates to the material discharging channel 27, the groove opening 282 is aligned with the material discharging channel 27, so that the seeds in the groove body 281 can fall into the material discharging channel 27.

[0056] A baffle 283, the baffle 283 is evenly distributed along the circumferential direction of the roller body 261.

[0057] In order to solve the technical problems raised in the background art, the present invention provides a seeding unit 2. By mounting multiple seeding units 2 on a drone body 1 and pre-adjusting the spacing between each seeding in advance, the row spacing size during seeding can be determined. Compared with the existing disordered seeding method, the present invention realizes regular and row-by-row direct seeding through the orderly seeding of multiple seeding units 2, improves the field ventilation and lighting conditions, reduces the occurrence of pests and diseases in the later stage of traditional disordered direct seeding crops, increases the seedling emergence rate and the effective number of tillers of the later-stage crops, and ultimately achieves the purpose of improving the growth quality of crops;

[0058] Specifically, the seeding unit 2 that can be carried by the drone can be mounted with 4 to 9 groups of seeding unit 2 modules according to the load capacity of the drone. The spacing between each group can be adjusted, that is, it can meet different row spacing requirements during actual seeding. Different numbers of seeding units 2 can be mounted according to different load capacities of the drone, and each seeding unit 2 sows one row. The specific working process of the seeding unit 2 is as follows: the seeds are rotated and transported from the seed bin 22 to the discharge port 24 through the rotation of the roller mechanism 26. Due to the relatively high rotation speed of the roller mechanism 26, the seeds have a certain acceleration when entering the discharge pipe, which can make the seeds enter the soil surface quickly and powerfully. The groove 281 and the notch 282 are provided on the roller body 261, so that the protruding part left by the roller body 261 is similar to a tooth. When the number of teeth is large, the volume of the seed storage bin 22 is small, and the amount of seeds sown per unit time is small at the same rotation speed. On the contrary, when the number of teeth is small. It is possible to achieve a larger range of mu seeding through the change of the roller mechanism 26 at the same rotation speed, and the seeding amount per unit time can also be controlled by adjusting the rotation speed of the roller, which can meet the different requirements of different users for the mu seeding amount. At the same time, on the basis of adjusting the rotation speed of the roller to change the seed output, the seeding amount per mu can be further adjusted by adjusting the flight speed of the drone, which has greater adaptability to the seeding amounts of seeds in the north and south and different varieties. It should be noted that a material detection sensor 25 is provided at the discharge port 24, which can alarm when the seed bin 22 is out of stock. At the same time, the drone records this coordinate, and after reloading the material, the drone automatically flies to this coordinate point to continue the operation.

[0059] The blanking channel 27 is set to be a foldable structure, and the folding point of the blanking channel 27 is located in the middle of the blanking channel 27. When the drone body 1 is in flight for seeding, the blanking channel 27 is vertically downward. When the drone body 1 is landing, the blanking channel 27 is folded upward by 90 degrees.

[0060] The blanking channel 27 includes an upper channel 271 and a lower channel 272. The bottoms of the lower channels 272 of multiple sowing units 2 are commonly connected to the connecting rod 4, and the tops of the lower channels 272 are commonly connected to the square tube 5. The square tube 5 is divided into two sections, and a steering gear 6 is connected to the closer ends of the two sections of the square tube 5.

[0061] The rotation of the steering gear 6 drives the rotation of the square tubes 5 on both sides, and the rotation of the square tubes drives the rotation of the lower channel 272, realizing a 90-degree upward folding and a downward vertical state.

[0062] In this embodiment, due to the need for orderly sowing, the overall length of the blanking channel 27 is relatively long. In order to reduce the restriction of the height of the UAV landing gear on the overall length of the blanking channel 27 to achieve the effect of orderly sowing, the blanking channel 27 is set as a folding structure, which is in a vertical state during UAV flight sowing to achieve normal orderly discharging. When the UAV lands, the steering gear 6 is controlled to drive the rotation of the square tubes 5 on both sides to drive the lower channel 272 of the blanking channel 27 to fold upward by 90 degrees, so that the overall length of the folded blanking channel 27 is less than the height of the UAV landing gear. Through the above process, the blanking channel 27 realizes the free switching between folding and vertical actions according to the working state of the UAV, thus taking into account both the orderliness of sowing and the convenience of UAV landing, with high practical value.

[0063] A spacing adjustment mechanism 7 is provided between each sowing unit 2. The spacing adjustment mechanism 7 is used to adjust the distance between each sowing unit 2, thereby changing the row spacing size during sowing.

[0064] In one solution, the spacing adjustment mechanism 7 includes: two connecting rods 71, the ends of the two connecting rods 71 are hinged to each other, the other ends of the two connecting rods 71 are respectively hinged to two sowing units 2, and an adjustment sleeve 72 is commonly provided on the mutually hinged ends of the two connecting rods 71. The adjustment sleeve 72 is slidably sleeved on the vertical shaft 73, and the adjustment sleeve 72 is fixed to the cross frame 74 through a connecting frame. Automatic telescopic rods 75 are provided at both ends of the cross frame.

[0065] There are two aircraft cross bars 3. A sliding sleeve 76 is provided on the lower aircraft cross bar 3. The sliding sleeve 76 is connected to the sowing unit 2. One of the vertical shafts 73 is fixed to the upper aircraft cross bar 3, and the other vertical shafts 73 are slidably connected to the upper aircraft cross bar 3 through collar rings. The bottom of the automatic telescopic rod 75 is fixed to the upper aircraft cross bar 3, and the top is slidably connected to the cross frame 74.

[0066] A pressure sensor 8 is provided at the bottom of the upper channel 271. When the upper channel 271 is opposite to the lower channel 272 and the material discharge channel 27 is in a vertical state, the blowing component 9 is controlled to work. The blowing component 9 is located on the movement track of the notch 282.

[0067] The blowing assembly 9 includes: a No. 1 gear 91 and a No. 2 gear 92, the No. 1 gear 91 is meshed with the No. 2 gear 92, the No. 1 gear 91 is transmission-connected to the driving module 262, the No. 2 gear 92 is rotatably mounted in the shell of the sowing body 21, and one end of the rotating shaft of the No. 2 gear 92 extends to the outside of the sowing body 21 and is fixed with a cam 93, an extrusion airbag 94 is provided at the bottom of the cam 93, a one-way air replenishment valve 95 is provided on one side of the airbag, and a one-way air outlet pipe 96 is connected to the other side, the outlet end of the one-way air outlet pipe 96 extends to the inside of the shell of the sowing body 21 and is directed toward the notch 282 aligned with the feeding channel 27 for blowing.

[0068] In order to achieve synchronous adjustment of the spacing between each sowing unit 2, the present invention overcomes the defect that the spacing between sowing rows can only be adjusted before the drone takes off in the prior art, and the spacing between rows cannot be adjusted in real time during the flight sowing process, so a spacing adjustment mechanism 7 is provided, through the automatic telescopic rod 75, which can be one of electric, pneumatic or hydraulic, and the upward extension action pushes the connected cross frame, and the upward movement of the cross frame 74 synchronously drives the multiple connecting frames and the adjustment sleeve 72 to move upward, due to the setting of the vertical axis 73, the adjustment sleeve 72 can only move upward along the vertical axis 73, so the adjustment sleeve 72 will drive the hinged ends of the two connecting rods 71 ​​to move upward together, and because the length of the connecting rod 71 is constant, the two connecting rods 71 ​​will pull the sowing units 2 on both sides to shrink, and the spacing between the multiple adjustment sleeves 72 and the vertical axis 73 will be adjusted accordingly, so as to maintain the purpose of synchronous adjustment of the spacing between each sowing unit 2, and then can be conveniently adjusted before and after the drone flies according to the sowing needs, greatly improving the freedom of sowing;

[0069] Due to the moisture that the seeds may carry by themselves, during sowing, the seeds may adhere to the notch 282, resulting in the failure to reach the required predetermined sowing amount and also causing malfunctions of the roller mechanism 26. The present invention provides a blowing assembly 9. While the driving module 262 drives the roller mechanism 26 to work, the power is used to drive the cam 93 outside the sowing unit 2 to rotate through the transmission of the gear set. The cam 93 periodically compresses the extrusion airbag 94, so that the extrusion airbag 94 impacts the notch 282 after seeding through the one-way air outlet pipe 96 with air flow, thereby causing the adhered seeds to be impacted and fall off; at the same time, the air flow can keep the notch 282 dry, reduce the adhesion of the notch 282 caused by the seeds, and further improve the sowing quality; and there is no need to add an additional power module, and the gear set transmission mechanism located outside can reduce the subsequent maintenance difficulty. The above has described a detailed description of an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A drone having a sowing unit (2) and capable of sowing seeds uniformly in rows, characterized in that: It comprises an unmanned aerial vehicle body (1) and a plurality of sowing units (2), wherein the unmanned aerial vehicle body (1) is provided with an aircraft crossbar (3), and each of the sowing units (2) can be detachably mounted on the aircraft crossbar (3); Each of the sowing units (2) comprises a sowing body (21), a seed bin (22) and a feed port (23) are arranged at the top of the sowing body (21), a discharge port (24) is arranged at the bottom of the sowing body (21), and a material detection sensor (25) is arranged at the discharge port (24), and the material detection sensor (25) is used to detect the outflow of seeds; The sowing body (21) is provided with a roller mechanism (26), a feeding channel (27) is provided below the roller mechanism (26), an opening is formed between the top of the feeding channel (27) and the seed storage bin (22), the discharge port (24) is located at the bottom of the feeding channel (27), a seed storage tank mechanism (28) is provided on the roller mechanism (26), and the roller mechanism (26) brings seeds from the opening into the feeding channel (27) through the seed storage tank mechanism (28) thereon during rotation, and then discharges the seeds through the discharge port (24); the roller mechanism (26) comprises: A roller body (261), the roller body (261) being rotatably mounted in the sowing body (21), the roller body (261) being provided with a plurality of seed holding slot mechanisms (28), each of the seed holding slot mechanisms (28) passing through an opening, a feeding channel (27) and a discharging port (24) in sequence during the rotation of the roller body (261), thereby achieving seed carrying, release and sowing; A driving module (262), the driving module (262) being used to drive the roller body (261) to rotate, the driving module (262) being mounted on the shell of the sowing body (21); a spacing adjustment mechanism (7) is provided between each of the sowing units (2), the spacing adjustment mechanism (7) being used to adjust the distance between each of the sowing units (2), thereby changing the row spacing during sowing; The spacing adjustment mechanism (7) comprises: two connecting rods (71), the ends of the two connecting rods (71) are hinged to each other, the other ends of the two connecting rods (71) are respectively hinged to two sowing units (2), an adjustment sleeve (72) is commonly provided on the hinged ends of the two connecting rods (71), the adjustment sleeve (72) is slidably sleeved on the vertical shaft (73), the adjustment sleeve (72) is fixed to the horizontal frame (74) through a connecting frame, and automatic telescopic rods (75) are provided at both ends of the horizontal frame (74); Two aircraft cross bars (3) are provided, and a sliding sleeve (76) is provided on the aircraft cross bar (3) located at the bottom, and the sliding sleeve (76) is connected to the sowing unit (2), wherein the vertical shaft (73) on one side is fixed to the aircraft cross bar (3) located at the top, and the other vertical shaft (73) is slidably connected to the aircraft cross bar (3) located at the top through a collar, and the bottom of the automatic telescopic rod (75) is fixed to the aircraft cross bar (3) located at the top, and the top is slidably connected to the cross frame (74).

2. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 1, characterized in that: The seed tank mechanism (28) comprises: A trough body (281), the trough body (281) being arranged on the roller body (261) and being used for carrying seeds; a notch (282), the notch (282) being arranged at the bottom of the trough body (281); when the roller mechanism (26) rotates to the feeding channel (27), the notch (282) is aligned with the feeding channel (27), so that the seeds in the trough body (281) can fall into the feeding channel (27); Material baffle plates (283), the material baffle plates (283) being evenly distributed along the circumference of the roller body (261).

3. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 2, characterized in that: The feeding channel (27) is configured as a foldable structure, and the folding point of the feeding channel (27) is located in the middle of the feeding channel (27); when the drone body (1) is in flight sowing, the feeding channel (27) is vertically downward; when the drone body (1) is in landing, the feeding channel (27) is folded upward by 90 degrees.

4. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 3, characterized in that: The feeding channel (27) comprises an upper channel (271) and a lower channel (272); the bottoms of the lower channels (272) of the plurality of sowing units (2) are commonly connected to a connecting rod (4); the tops of the lower channels (272) are commonly connected to a square tube (5); the square tube (5) is divided into two sections; the ends of the two sections of the square tube (5) that are close to each other are connected to a steering gear (6); The steering gear (6) rotates to drive the square tubes (5) on both sides to rotate, and the rotation of the square tubes drives the lower channel (272) to rotate, thereby achieving downward verticalization and upward folding of 90 degrees.

5. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 4, characterized in that: A pressure sensor (8) is provided at the bottom of the upper channel (271). When the upper channel (271) is opposite to the lower channel (272) and the material discharge channel (27) is in a vertical state, the blowing component (9) is controlled to operate, and the blowing component (9) is located on the movement track of the notch (282); The blowing assembly (9) comprises: a first gear (91) and a second gear (92), wherein the first gear (91) meshes with the second gear (92), the first gear (91) is transmission-connected to the driving module (262), the second gear (92) is rotatably mounted in the shell of the sowing body (21), and one end of the rotating shaft of the second gear (92) extends to the outside of the sowing body (21) and is fixed with a cam (93), an extrusion air bag (94) is arranged at the bottom of the cam (93), a one-way air supply valve (95) is provided on one side of the air bag, and a one-way air outlet pipe (96) is connected to the other side, the air outlet end of the one-way air outlet pipe (96) extends to the inside of the shell of the sowing body (21) and blows air toward a notch (282) aligned with the feeding channel (27).

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