Unmanned aerial vehicle provided with seeding units and capable of uniformly seeding in rows

Abstract

The invention relates to the technical field of unmanned aerial vehicle seeding, and discloses an unmanned aerial vehicle with seeding units and capable of uniformly seeding in rows, the unmanned aerial vehicle comprises an unmanned aerial vehicle main body and a plurality of seeding units, the unmanned aerial vehicle main body is provided with an aircraft cross bar, and each seeding unit is detachably mounted on the aircraft cross bar; wherein each seeding unit comprises a seeding body, the top of the seeding body is provided with a seed bin and a feed port, the lower part of the seeding body is provided with a discharge port, the discharge port is provided with a material detection sensor, and the material sensor is used for detecting the outflow condition of seeds; a roller mechanism is arranged in the seeding body, a discharging channel is arranged below the roller mechanism, an opening is formed between the top of the discharging channel and the seed discharging bin, the discharging port is located in the bottom of the discharging channel, and a seed containing groove mechanism is arranged on the roller mechanism; the idler wheel mechanism brings seeds into the discharging channel from the opening through the seed containing groove mechanism on the idler wheel mechanism in the rotating process, and then the seeds are discharged through the discharging opening.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicle sowing, and in particular to an unmanned aerial vehicle with a sowing unit and capable of sowing evenly in rows. Background Art

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

[0003] 1. Insufficient sowing accuracy

[0004] The disordered sowing method results in extremely uneven distribution of seeds in the farmland, with some areas densely covered with seeds, others sparsely covered with seeds, or even blank areas. This uneven sowing not only wastes seed resources, but may also lead to inefficient use of farmland resources, affecting the overall yield and quality of crops.

[0005] 2. Limited crop growth environment

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

[0007] 3. Pest and disease prevention and control is difficult

[0008] Unordered sowing makes pest and disease control 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 of pests and diseases. This not only increases the use of pesticides, but also may cause potential harm to the environment and human health.

[0009] IV. Waste of Agricultural Resources

[0010] Disordered sowing not only wastes seed resources, but may also lead to waste of farmland water resources, fertilizer resources, etc. In areas with dense seeds, competition between crops may lead to excessive consumption of nutrients and water, while in areas with sparse seeds, there may be a waste of resources due to lack of sufficient crops to absorb nutrients and water.

[0011] 5. Sustainable agricultural development is hindered

[0012] Disordered sowing is not conducive to the sustainable development of agriculture. Due to the existence of the above 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 development of agriculture in the future.

[0013] In summary, the disorderly sowing method of drone sowing equipment has many defects, which seriously affects 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 a sowing unit that can sow seeds evenly in rows, aiming to solve the above-mentioned defects, improve sowing accuracy, optimize the crop growth environment, reduce the difficulty of disease and pest control, reduce the waste of agricultural resources, 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 a sowing unit and capable of sowing uniformly in rows, comprising a drone body and a plurality of sowing units, wherein the drone body is provided with an aircraft crossbar, and each of the sowing units can be detachably mounted on the aircraft crossbar;

[0017] Each of the sowing units comprises a sowing body, a seed bin and a feed port are arranged at the top of the sowing body, a discharge port is arranged at the bottom of the sowing body, a material detection sensor is arranged at the discharge port, and the material sensor is used to detect the outflow of seeds;

[0018] A roller mechanism is provided in the sowing body, a feeding channel is provided under the roller mechanism, an opening is formed between the top of the feeding channel and the seeding bin, the discharge port is located at the bottom of the feeding channel, and a seed containing groove mechanism is provided on the roller mechanism. The roller mechanism brings seeds from the opening into the feeding channel through the seed containing groove mechanism thereon during rotation, and then discharges the seeds through the discharge port.

[0019] In one solution, the roller mechanism comprises:

[0020] A roller body, the roller body is rotatably mounted in the sowing body, and a plurality of seed-containing slot mechanisms are arranged on the roller body, each of the seed-containing slot mechanisms sequentially passes through an opening, a feeding channel and a discharging port during the rotation of the roller body, so as to realize the carrying, releasing and sowing of seeds;

[0021] A driving module is used to drive the roller body to rotate, and the driving module is installed on the shell of the sowing body.

[0022] In one solution, the seed tank mechanism comprises:

[0023] A trough body, which is arranged on the roller body and is used to carry seeds;

[0024] A notch, wherein the notch is arranged at the bottom of the trough body, and when the roller mechanism rotates to the feeding channel, the notch is aligned with the feeding channel, so that the seeds in the trough body can fall into the feeding channel;

[0025] The material baffle plates are evenly distributed along the circumference of the roller body.

[0026] In one of the solutions, the feeding channel is configured as a foldable structure, and the folding point of the feeding channel is located in the middle of the feeding channel. When the drone body is in flight sowing, the feeding channel is vertically downward, and when the drone body is in landing, the feeding channel is folded upward 90 degrees.

[0027] In one solution, the feeding channel includes an upper channel and a lower channel, the bottoms of the lower channels of the 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 the ends of the two sections of the square tube that are close to each other are connected to a steering gear;

[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 channel to rotate, so as to achieve downward verticality and upward folding of 90 degrees.

[0029] In one solution, a spacing adjustment mechanism is provided between each of the sowing units, and the spacing adjustment mechanism is used to adjust the distance between each of the sowing units, thereby changing the row spacing during sowing.

[0030] In one solution, the spacing adjustment mechanism includes: two connecting rods, the ends of the two connecting rods are hinged to each other, the other ends of the two connecting rods are respectively hinged to the two sowing units, and an adjustment sleeve is commonly provided on the hinged ends of the two connecting rods, the adjustment sleeve sliding sleeve is provided on the vertical axis, the adjustment sleeve is fixed to the horizontal frame through a connecting frame, and automatic telescopic rods are provided at both ends of the horizontal frame;

[0031] There are two aircraft cross bars, and a sliding sleeve is provided on the aircraft cross bar located at the bottom, and the sliding sleeve is connected to the sowing unit. The vertical shaft on one side is fixed on the aircraft cross bar located at the top, and the other vertical shaft is slidably connected to the aircraft cross bar located at the top through a ring. The bottom of the automatic telescopic rod is fixed on the aircraft cross bar located at the top, 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] Description of the drawings: 1. UAV body; 2. sowing unit; 21. sowing body; 22. seed bin; 23. feed port; 24. discharge port; 25. material detection sensor; 26. roller mechanism; 261. roller body; 262. drive module; 27. unloading channel; 271. upper channel; 272. lower channel; 28. seed tank mechanism; 281. tank body; 282. notch; 283. baffle plate; 3. aircraft cross bar; 4. connecting rod; 5. square tube; 6. servo; 7. spacing adjustment mechanism; 71. connecting rod; 72. adjustment sleeve; 73. vertical axis; 74. cross frame; 75. automatic telescopic rod; 76. sliding sleeve; 8. pressure sensor; 9. blowing assembly; 91. gear No. 1; 92. gear No. 2; 93. cam; 94. extrusion airbag; 95. one-way air supply valve; 96. one-way air outlet pipe. DETAILED DESCRIPTION

[0045] 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.

[0046] See also Figure 1-Figure 7 As shown, the present invention is a drone with a sowing unit 2 and capable of sowing evenly in rows, comprising a drone body 1 and a plurality of sowing units 2, wherein the drone 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; as one embodiment thereof, each sowing unit 2 has four clamps, and the sowing unit 2 is mounted on the aircraft crossbar 3 by means of the clamps, and the distance between each sowing unit 2 can be adjusted by loosening the clamps, thereby changing the row spacing during sowing;

[0047] Each of the sowing units 2 includes a sowing body 21, a seed bin 22 and a feed port 23 are provided at the top of the sowing body 21, a discharge port 24 is provided at the bottom of the sowing body 21, and a material detection sensor 25 is provided at the discharge port 24, and the material sensor is used to detect the outflow of seeds;

[0048] A roller mechanism 26 is provided in the sowing body 21, and a feeding channel 27 is provided under the roller mechanism 26. An opening is formed between the top of the feeding channel 27 and the seeding bin 22, and the discharge port 24 is located at the bottom of the feeding channel 27. A seed holding groove mechanism 28 is provided on the roller mechanism 26. The roller mechanism 26 brings the seeds from the opening into the feeding channel 27 through the seed holding groove mechanism 28 thereon during rotation, and then discharges the seeds through the discharge port 24.

[0049] The roller mechanism 26 comprises:

[0050] The roller body 261 is in the shape of a straight groove with five teeth. The roller body 261 is rotatably mounted in the sowing body 21. A plurality of seed-containing groove mechanisms 28 are provided on the roller body 261. Each of the seed-containing groove mechanisms 28 passes through the opening, the feeding channel 27 and the discharge port 24 in sequence during the rotation of the roller body 261, so as to realize the carrying, releasing and sowing of seeds.

[0051] As a specific embodiment, the roller body 261 exhibits various configurations, such as Figure 7 As shown, in these forms, the number of teeth, twisted form and depth of the groove on the upper part of the roller body 261 are different; this setting takes into account the diversity of sowing crops, especially taking rice as an example, since the size and shape of rice seeds are different, some are larger, some are smaller, and the shapes are also different, therefore, by adjusting the different forms of the roller, it is possible to accurately adapt to the sowing needs of different rice seeds. The above setting not only improves the accuracy and efficiency of sowing, but also ensures that different types of rice seeds can be properly sown, thereby helping to improve the yield and quality of crops.

[0052] The driving module 262 is used to drive the roller body 261 to rotate. The driving module 262 is installed on the shell of the sowing body 21.

[0053] The seed tank mechanism 28 comprises:

[0054] A trough 281, wherein the trough 281 is disposed on the roller body 261 and is used for carrying seeds;

[0055] A notch 282, wherein the notch 282 is disposed at the bottom of the trough body 281, and 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;

[0056] The material blocking plates 283 are evenly distributed along the circumference of the roller body 261 .

[0057] In order to solve the technical problems raised in the background technology, the present invention is provided with a sowing unit 2. By mounting a plurality of sowing units 2 on a drone body 1 and pre-adjusting the spacing between each sowing, the row spacing size can be used as the row spacing size during sowing. Compared with the existing disordered sowing method, the present invention sows in order through a plurality of sowing units 2, realizes direct sowing in regular strips and rows, improves field ventilation and lighting conditions, reduces the occurrence of diseases and insect pests in the late stage of traditional disordered direct sowing crop production, improves the seedling rate and effective number of paging of late crops, and finally achieves the purpose of improving the growth quality of crops.

[0058] Specifically, the sowing unit 2 that can be carried by the drone can be mounted with 4 to 9 groups of sowing unit 2 modules according to the load capacity of the drone. The spacing between each group can be adjusted to meet different row spacing requirements during actual sowing. Different numbers of sowing units 2 can be mounted according to the load capacity of the drone, and each sowing unit 2 sows a row; the specific working process of the sowing unit 2 is to rotate the seeds from the seed bin 22 to the discharge port 24 through the rotation of the roller mechanism 26. Because the roller mechanism 26 has a relatively high rotation speed, the seeds have a certain acceleration when entering the discharge pipe, which can make the seeds quickly and forcefully enter the soil surface; the groove body 281 and the groove 282 provided on the roller body 261 make the protrusion left by the roller body 261 similar to teeth. When the number of teeth is large The volume of the seed storage bin 22 is smaller, and less seeds will be planted under the same rotation speed. The opposite is true when the number of teeth is small. A larger range of sowing per mu can be achieved by changing the roller mechanism 26 under the same rotation speed. The sowing amount per unit time can also be controlled by adjusting the roller speed, which can meet the different sowing amount per mu requirements of different users. At the same time, on the basis of changing the seed output by adjusting the roller speed, the seed amount per mu can be further adjusted by adjusting the flight speed of the drone, which has greater adaptability to the sowing amount of seeds in the north and south and of 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 short of material, and the drone records the coordinates at the same time. After reloading the material, the drone automatically flies to this coordinate point to continue the operation.

[0059] 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 UAV body 1 is in flight sowing, the feeding channel 27 is vertically downward. When the UAV body 1 is in landing, the feeding channel 27 is folded upward 90 degrees.

[0060] The feeding channel 27 includes an upper channel 271 and a lower channel 272. The bottoms of the lower channels 272 of the 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 the ends of the two sections of the square tube 5 that are close to each other are connected to the steering gear 6.

[0061] 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 verticality and upward folding 90 degrees.

[0062] In this embodiment, due to the need for orderly sowing, the overall length of the feeding channel 27 is relatively long. In order to reduce the restriction of the height of the drone landing gear on the overall length of the feeding channel 27 and achieve the effect of orderly sowing, the feeding channel 27 is set to a folding structure, which is in a vertical state when the drone is flying and sowing, to achieve normal orderly discharging. When the drone lands, the servo 6 is controlled to drive the square tubes 5 on both sides to rotate, so as to drive the lower channel 272 of the feeding channel 27 to fold upward 90 degrees, so that the overall length of the folded feeding channel 27 is less than the height of the drone landing gear. Through the above process, the feeding channel 27 can be freely switched between folding and vertical action according to the working state of the drone, thereby taking into account both the orderliness of sowing and the convenience of drone landing, and has high practical value.

[0063] A spacing adjustment mechanism 7 is provided between each of the sowing units 2, and the spacing adjustment mechanism 7 is used to adjust the distance between each of the sowing units 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 the two sowing units 2, and 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;

[0065] There are two aircraft cross bars 3, 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. The vertical shaft 73 on one side is fixed on 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 ring. The bottom of the automatic telescopic rod 75 is fixed on the aircraft cross bar 3 located at the top, 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] However, due to the moisture that the seeds may carry, they may adhere to the slot 282 during sowing, resulting in the predetermined sowing amount not meeting the demand and causing the roller mechanism 26 to fail. The present invention is provided with a blowing assembly 9, which uses the driving module 262 to drive the roller mechanism 26 to work, and uses the power to drive the cam 93 outside the sowing unit 2 to rotate through the gear group transmission, and uses the cam 93 to periodically compress the extrusion airbag 94, so that the extrusion airbag 94 is subjected to airflow impact to the slot 282 after the seeds are dropped through the one-way air outlet pipe 96, so that the adhered seeds are impacted and dropped; at the same time, the airflow can be used to keep the slot 282 dry, reduce the adhesion and weight of the slot 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 group transmission mechanism located outside can reduce the difficulty of subsequent maintenance. The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to be used to limit the scope of implementation of the present invention. All equal changes and improvements made according to the scope of application of the present invention should still belong to the scope of patent coverage of the present invention.

Claims

1. A drone having a sowing unit (2) and capable of sowing 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 sensor is used to detect the outflow of seeds; A roller mechanism (26) is arranged inside the sowing body (21), a feeding channel (27) is arranged 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 holding trough mechanism (28) is arranged on the roller mechanism (26), and the roller mechanism (26) brings seeds from the opening into the feeding channel (27) through the seed holding trough mechanism (28) thereon during rotation, and then discharges the seeds through the discharge port (24).

2. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 1, characterized in that: 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 the carrying, release and sowing of seeds; 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 shell of the sowing body (21).

3. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 2, characterized in that: The seed holding 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), wherein the notch (282) is arranged at the bottom of the trough body (281), and 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 blocking plates (283), the material blocking plates (283) are evenly distributed along the circumference of the roller body (261).

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) 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.

5. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 4, 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.

6. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 1 or 5, characterized in that: A spacing adjustment mechanism (7) is provided between each of the sowing units (2), and the spacing adjustment mechanism (7) is used to adjust the distance between each of the sowing units (2), thereby changing the row spacing during sowing.

7. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 6, characterized in that: 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 the 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; 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 on 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 on the aircraft cross bar (3) located at the top, and the top is slidably connected to the cross frame (74).

8. The drone having a sowing unit (2) and capable of sowing uniformly in rows according to claim 7, 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 work, 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) is meshed 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 arranged 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 is directed toward a notch (282) aligned with the feeding channel (27) for blowing air.

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