Seedling throwing mechanism and unmanned aerial vehicle seedling throwing system

Abstract

The embodiment of the invention provides a seedling slinging mechanism and an unmanned aerial vehicle seedling slinging system, and relates to the technical field of seedling slinging. The seedling throwing mechanism comprises a load module, a first seedling conveying module and a first seedling taking module, the load module is used for being installed on the unmanned aerial vehicle, the first seedling conveying module is arranged on the load module, and the first seedling taking module is movably arranged on the load module so as to take seedlings on the first seedling conveying module line by line and pinch by pinch; the seedling taking module moves to complete taking-down and throwing-out of the seedlings, unmanned aerial vehicle seedling throwing is achieved, the influence of factors such as the terrain and the land parcel area is reduced, the seedlings are taken down line by line and pinching by pinching without driving the seedling conveying module to move relative to the load module, the inertial impact on the load module is reduced, and the load module can be installed on the unmanned aerial vehicle. And the flight stability of the unmanned aerial vehicle is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of seedling throwing, and in particular to a seedling throwing mechanism and an unmanned aerial vehicle (UAV) seedling throwing system. Background Art

[0002] For mechanized rice planting, there are actually only two solutions on the market: rice transplanter and rice broadcaster. Both of these solutions mainly rely on ground-based agricultural machinery and are subject to factors such as terrain and plot area, and have great limitations. Summary of the invention

[0003] In order to solve the above-mentioned technical problems, the present invention provides a seedling throwing mechanism and a drone seedling throwing system, which can realize drone seedling throwing and reduce the influence of factors such as terrain and plot area.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] In a first aspect, the present invention provides a seedling throwing mechanism, comprising:

[0006] A load module, the load module is used to be installed on the UAV;

[0007] A first seedling conveying module, wherein the first seedling conveying module is arranged on the load module; and

[0008] The first seedling taking module is movably arranged on the loading module to take the seedlings on the first seedling delivering module row by row and bunch by bunch.

[0009] In an optional embodiment, the first seedling removing module is used to eject the removed seedlings by centrifugal force or by an ejection member.

[0010] In an optional embodiment, the first seedling removing module can be laterally movably arranged on the loading module.

[0011] In an optional embodiment, the seedling throwing mechanism further includes a driving device, the driving device is connected to the first seedling taking module, and the driving device is used to drive the first seedling taking module to move relative to the load module.

[0012] In an optional embodiment, the driving device includes a power piece and a threaded rod, the power piece is connected to the threaded rod, the threaded rod is rotatably arranged on the load module, and the first seedling taking module and the threaded rod are threadedly matched, and the power piece is used to drive the threaded rod to rotate so that the first seedling taking module moves along the axial direction of the threaded rod.

[0013] In an optional embodiment, the driving device further comprises a sliding connector, one end of which is slidably connected to the load module, and the other end of which is connected to the first seedling removing module.

[0014] In an optional embodiment, there are multiple first seedling removing modules, and multiple first seedling removing modules are threadedly matched with the same threaded rod.

[0015] In an optional embodiment, the seedling throwing mechanism further includes a second seedling sending module and a second seedling taking module, the second seedling sending module is arranged on the load module, and the second seedling sending module is arranged in the same direction or opposite to the first seedling sending module;

[0016] The second seedling taking module is movably arranged on the load module to take the seedlings on the second seedling delivering module row by row and bunch by bunch.

[0017] In an optional embodiment, the moving direction of the first seedling taking module is opposite to the moving direction of the second seedling taking module.

[0018] In a second aspect, the present invention provides a drone seedling throwing system, comprising a drone and the seedling throwing mechanism described in any one of the aforementioned embodiments, wherein the load module is installed on the drone.

[0019] The beneficial effects of the seedling throwing mechanism and the drone seedling throwing system of the embodiments of the present invention include, for example:

[0020] The present invention provides a seedling throwing mechanism, which comprises a load module, a first seedling sending module and a first seedling taking module. The load module is used to be installed on a drone, the first seedling sending module is arranged on the load module, and the first seedling taking module is movably arranged on the load module, so as to take off the seedlings on the first seedling sending module row by row and bunch by bunch. The seedlings are taken off and thrown out in a manner that the seedling sending module remains stationary while the seedling taking module moves, thereby realizing the seedling throwing of the drone, reducing the influence of factors such as terrain and plot area, and since there is no need to drive the seedling sending module to move relative to the load module to realize the taking off of the seedlings row by row and bunch by bunch, the inertial impact on the load module is reduced, and the load module can be installed on the drone, thereby ensuring the flight stability of the drone.

[0021] The present invention provides a drone seedling throwing system, which comprises a drone and the above-mentioned seedling throwing mechanism, wherein a load module is installed on the drone, and the drone seedling throwing system has all the functions of the above-mentioned seedling throwing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a drone seedling throwing system provided in an embodiment of the present invention;

[0024] Figure 2 A top view of a seedling throwing mechanism provided in an embodiment of the present invention;

[0025] Figure 3 It is a front view of the seedling throwing mechanism provided in an embodiment of the present invention;

[0026] Figure 4 It is a schematic diagram of a threaded rod, a power member and a sliding rod of a seedling throwing mechanism provided in an embodiment of the present invention;

[0027] Figure 5 for Figure 4 A partial enlarged view of

[0028] Figure 6 This is a schematic diagram showing that the load module of the seedling throwing mechanism provided in the embodiment of the present invention is only equipped with a first seedling delivering module and a first seedling taking module.

[0029] Icons: 1000-seedling throwing mechanism; 100-load module; 110-sliding rod; 200-first seedling sending module; 210-first seedling sending tray; 300-second seedling sending module; 310-second seedling sending tray; 400-first seedling taking module; 410-driving source; 420-cutter head; 500-second seedling taking module; 610-power part; 620-threaded rod; 630-sliding connector; 640-sliding sleeve; 650-bearing; 660-sliding block; 2000-UAV; 11-rotating shaft; 12-pressing strip. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0036] As mentioned in the background technology, for mechanized rice planting, there are actually only two solutions on the market: rice transplanter and rice broadcaster. Both solutions mainly rely on ground-moving agricultural machinery and are subject to factors such as terrain and plot area, and have great limitations.

[0037] In view of this, please refer to Figure 1-Figure 6 The seedling throwing mechanism 1000 and the drone seedling throwing system provided in the embodiments of the present invention can solve this problem, which will be described in detail below.

[0038] Please refer to Figure 1 The present invention provides a drone seedling throwing system, which includes a drone 2000 and a seedling throwing mechanism 1000, wherein a load module 100 (described in detail below) of the seedling throwing mechanism 1000 is installed on the drone 2000. The seedling throwing mechanism 1000 can complete the seedling throwing operation during the flight of the drone 2000, while ensuring the flight stability of the drone 2000.

[0039] Specifically, the seedling throwing mechanism 1000 includes a load module 100, a first seedling delivery module 200 and a first seedling retrieval module 400. The first seedling delivery module 200 is arranged in the load module 100, and the first seedling retrieval module 400 can be laterally movably arranged in the load module 100 to remove the seedlings on the first seedling delivery module 200 row by row and handful by handful. The seedlings are removed and thrown out by keeping the seedling delivery module stationary and moving the seedling retrieval module, thereby realizing drone seedling throwing, reducing the influence of factors such as terrain and plot area, and having fewer limitations compared to agricultural machinery that relies on ground travel.

[0040] In addition, since there is no need to drive the seedling delivery module to move relative to the load module 100 to remove the seedlings row by row and handful by handful, the inertial impact on the load module 100 is reduced, and the load module 100 can be installed on the drone 2000, thereby ensuring the flight stability of the drone 2000.

[0041] That is to say, the drone seedling throwing system provided in the embodiment of the present invention adopts a method in which the position of the seedling delivery module is fixed and the seedling retrieval module moves horizontally left and right to achieve the functions of removing and throwing the seedlings.

[0042] Since the seedling taking module does not need to carry seedlings, the overall weight is reduced, and the power to drive the seedling taking module to move is small, which reduces the overall power of the equipment. The inertia generated by the left and right lateral movement is reduced, reducing the left and right swaying of the entire equipment, thereby reducing the impact on the flight stability of the aircraft.

[0043] In this embodiment, the UAV 2000 is a rotor UAV, specifically a quad-rotor UAV. Of course, it can also be a single-rotor UAV, a dual-rotor UAV, a six-rotor UAV, an eight-rotor UAV, etc.

[0044] The UAV 2000 can automatically operate according to a preset path, flight speed, posture, etc., or can be manually controlled by an operator.

[0045] The load module 100 of the seedling throwing mechanism 1000 can be detachably mounted on the lower part of the UAV 2000, that is, the UAV 2000 and the seedling throwing mechanism 1000 adopt an upper and lower split design, and the UAV 2000 serves as a mobile platform and is a split design with the seedling throwing mechanism 1000.

[0046] In other words, this type of seedling throwing mechanism 1000 is an independent structure that does not rely on the fuselage frame of the drone 2000. Based on this type, the corresponding device can be replaced according to actual operation requirements in a specific operation scenario.

[0047] For example, after the seedling throwing mechanism 1000 is disassembled, a spreading device is installed to spread pesticides, fertilizers, seeds, etc. Similarly, after the seedling throwing mechanism 1000 is disassembled, a surveying device, a spraying device, and other agricultural operation mechanisms can be installed.

[0048] It should be noted that, in this embodiment, the load module 100 is a tripod of the drone 2000, and the load module 100 is used to be set on the drone 2000. In other embodiments, the load module 100 can also be a bracket, which mainly serves to connect and fix the positions of the seedling delivery module and the seedling removal module.

[0049] In this embodiment, please continue to refer to Figure 2 In order to improve the efficiency of seedling throwing, the seedling throwing mechanism 1000 also includes a second seedling sending module 300 and a second seedling taking module 500. The second seedling sending module 300 is arranged in the loading module 100, and the second seedling sending module 300 is arranged back to back with the first seedling sending module 200.

[0050] Of course, in other embodiments, the second seedling conveying module 300 and the first seedling conveying module 200 may also be arranged in the same direction.

[0051] The second seedling removal module 500 can be laterally movably disposed on the load module 100 to remove the seedlings from the second seedling delivery module 300 row by row. Specifically, Figure 2 As shown by the direction of the middle arrow, the moving direction of the first seedling taking module 400 and the moving direction of the second seedling taking module 500 may be opposite. Of course, the moving direction of the first seedling taking module 400 and the moving direction of the second seedling taking module 500 may also be the same.

[0052] It is easy to understand that in this embodiment, the first seedling delivering module 200 and the second seedling delivering module 300 can carry blanket seedlings, and the first seedling delivering module 200 can transport the blanket seedlings toward the first seedling taking module 400, and the second seedling delivering module 300 can transport the blanket seedlings toward the second seedling taking module 500.

[0053] It should be noted that the first seedling removing module 400 can throw out the seedlings taken from the seedling blanket through centrifugal force. Of course, the first seedling removing module 400 can also throw out the seedlings taken from the seedling blanket through an ejection member (the seedling removing module can be provided with an ejection member, which can provide an ejection force).

[0054] At the same time, the second seedling removing module 500 can also throw out the seedlings taken from the seedling blanket through centrifugal force or use a ejection member to throw out the seedlings taken from the seedling blanket.

[0055] In order to facilitate the lateral movement of the first seedling taking module 400 and the second seedling taking module 500, the seedling throwing mechanism 1000 also includes two driving devices, one of which is connected to the first seedling taking module 400, and the driving device is used to drive the first seedling taking module 400 to move reciprocatingly and laterally relative to the load module 100.

[0056] Another driving device is connected to the second seedling taking module 500 , and is used to drive the second seedling taking module 500 to move back and forth laterally relative to the load module 100 .

[0057] It should be noted that, in this embodiment, the first seedling taking module 400 and the second seedling taking module 500 mentioned above can be referred to as seedling taking modules, and the first seedling delivering module 200 and the second seedling delivering module 300 mentioned above can be referred to as seedling delivering modules.

[0058] Please refer to Figure 4 and Figure 5 In this embodiment, the driving device includes a power piece 610 and a threaded rod 620, the power piece 610 and the threaded rod 620 are connected, the threaded rod 620 is rotatably arranged on the load module 100, and the first seedling taking module 400 and the threaded rod 620 are threadedly matched, and the power piece 610 is used to drive the threaded rod 620 to rotate so that the first seedling taking module 400 moves along the axial direction of the threaded rod 620.

[0059] Among them, the power component 610 is also installed in the load module 100. In this embodiment, the power component 610 is a motor. The power output end of the power component 610 is connected to one end of the threaded rod 620. In order to facilitate the rotation of the threaded rod 620, a bearing 650 is installed at both ends of the threaded rod 620, and the bearing 650 is set in the load module 100.

[0060] In addition, the driving device further includes a sliding connector 630 , which is in the form of a long strip plate structure. The load module 100 has a sliding rod 110 , and the sliding rod 110 and the threaded rod 620 are arranged in parallel.

[0061] One end of the sliding connector 630 is slidably connected to the load module 100 . Specifically, one end of the sliding connector 630 has a sliding sleeve 640 , and the sliding sleeve 640 is slidably connected to the sliding rod 110 of the load module 100 .

[0062] The other end of the sliding connector 630 is connected to the first seedling removing module 400. Specifically, a slider 660 is threadedly fitted on the threaded rod 620, and the other end of the sliding connector 630 is connected to the slider 660. That is, the other end of the sliding connector 630 is connected to the first seedling removing module 400 through the slider 660.

[0063] Of course, in some embodiments, a partial structure of the driving source 410 (described in detail below) of the first seedling removing module 400 may be threadedly matched with the threaded rod 620.

[0064] When the power member 610 drives the threaded rod 620 to rotate, the slider 660 starts to move laterally, and the sliding connector 630 and the sliding sleeve 640 will move laterally at the same time, and the first seedling taking module 400 connected to the slider 660 will also move laterally. The power output end of the power member 610 can realize the lateral reciprocating movement of the first seedling taking module 400 by forward or reverse rotation, and then the seedlings can be taken out row by row and thrown out.

[0065] In this embodiment, please refer to Figure 3 Combined with Figure 2 The first seedling sending module 200 has a plurality of first seedling sending trays 210 arranged side by side, and the second seedling sending module 300 also has a plurality of second seedling sending trays 310 arranged side by side. The first seedling sending trays 210 and the second seedling sending trays 310 are used to carry blanket seedlings. The middle parts of the first seedling sending trays 210 and the second seedling sending trays 310 are both provided with conveyor belts to facilitate conveying the blanket seedlings downward. In this way, the first seedling sending tray 210 can convey the blanket seedlings toward the first seedling taking module 400, and the second seedling sending tray 310 can convey the blanket seedlings toward the second seedling taking module 500.

[0066] It should be noted that, for the convenience of description, the first seedling sending tray 210 and the second seedling sending tray 310 are referred to as seedling sending trays herein. Generally, the seedling sending trays are arranged in an inclined state.

[0067] Among them, considering that the blanket seedlings may be separated after being placed on the seedling delivery tray, the seedling delivery tray is provided with a seedling pressing device, which is used to limit the blanket seedlings in the seedling delivery tray. The seedling pressing device can be in the form of a plate or a rod, etc. Specifically, in this embodiment, the seedling pressing device includes a rotating shaft 11 and a plurality of pressure strips 12, the rotating shaft 11 is rotatably placed horizontally on the seedling delivery tray, and the plurality of pressure strips 12 are vertically and spaced apart on the rotating shaft 11, and the plurality of pressure strips 12 are used to limit the blanket seedlings in the seedling delivery tray.

[0068] In this embodiment, in a specific scenario, the rotating shaft 11 can have a certain damping relative to the seedling delivery tray, so the force of the pressure bar 12 on the blanket seedling can be adjusted, and the pressure state can be maintained. Of course, a torsion spring can also be installed on the rotating shaft 11 to provide pressure for rotation in the direction of the blanket seedling.

[0069] In this embodiment, the seedling delivery tray is a rectangular frame structure, specifically, it includes a supporting plate and two baffles arranged on the left and right edges of the supporting plate. No baffles are arranged above and below, so that an upper opening is formed at the top to facilitate placing the seedlings, and a lower opening is formed at the bottom to facilitate taking the seedlings.

[0070] The width of the seedling delivery tray can be matched with the width of a tray of seedling blankets. In addition, the height of the seedling delivery tray is not limited to the height of a tray of seedling blankets.

[0071] During installation, the two ends of the rotating shaft 11 can be rotatably arranged on the two baffles of the seedling delivery tray. Figure 3 In the figure, three pressure strips 12 are correspondingly arranged on a rotating shaft 11. In other words, three pressure strips 12 are distributed on a seedling delivery tray to limit the blanket seedlings in the seedling delivery tray, so that the blanket seedlings can be pressed on the seedling delivery tray by the pressure strips 12, which greatly ensures that the blanket seedlings will not be blown away during the flight of the drone. Of course, the number of pressure strips 12 corresponding to a seedling delivery tray may not be limited to three, for example, it may also be four, five or more. Among them, the number of first seedling taking modules 400 is multiple, and the number of first seedling taking modules 400 corresponds to the number of first seedling delivery trays 210 one by one, and the multiple first seedling taking modules 400 are threadedly matched through multiple sliders 660 and the same threaded rod 620.

[0072] Of course, in this embodiment, the number of the second seedling taking modules 500 is also multiple, and the number of the second seedling taking modules 500 corresponds one to one to the number of the second seedling delivering trays 310. The reciprocating lateral movement method of the second seedling taking module 500 can refer to the movement method of the above-mentioned first seedling taking module 400, which will not be repeated here.

[0073] Of course, in other embodiments, the driving device may also include a rack and a motor with a gear. For example, the rack is connected to the first seedling taking module 400. The first seedling taking module 400 is slidably arranged on the load module 100. The gear and the rack at the output end of the motor cooperate with each other. The gear at the output end of the motor rotates to realize the reciprocating lateral movement of the first seedling taking module 400.

[0074] The driving device may also include a driving motor and a synchronous belt. The synchronous belt is arranged on the load module 100 . The synchronous belt is fixedly connected to the first seedling picking module 400 . The driving motor drives the synchronous belt to move, thereby realizing the reciprocating lateral movement of the first seedling picking module 400 .

[0075] In addition, it should be noted that in this embodiment, please refer to Figure 2 The first seedling taking module 400 includes a driving source 410 and a cutter head 420. The driving source 410 is connected to the slider 660. The driving source 410 is connected to the cutter head 420 to drive the cutter head 420 to separate the blanket seedlings on the first seedling sending module 200 and throw the separated seedlings out by centrifugal force. The driving source 410 includes a cutter head 420 motor and a transmission box. The cutter head 420 motor is connected to the transmission box, and the transmission box is connected to the cutter head 420. The cutter head 420 motor is used to drive the transmission box to drive the cutter head 420 to separate the blanket seedlings. The cutter head 420 here is a seedling needle.

[0076] Of course, there can be multiple cutter heads 420, which are connected to the same transmission box, which can be a gear box, a connecting rod mechanism, a sprocket mechanism or a pulley mechanism. The cutter head 420 motor of the driving source 410 can also be replaced by a pneumatic motor, a gasoline engine, etc.

[0077] In addition, in other embodiments, an ejection member may be provided on the cutter head 420, and the ejection member may store and release energy through a cam member during the rotation of the cutter head 420. When the ejection member releases energy, the seedlings are ejected under the ejection force provided by the ejection member.

[0078] The structure and principle of the second seedling removing module 500 can refer to the first seedling removing module 400, and will not be described in detail here.

[0079] Please note that, please refer to Figure 6 In some embodiments, the load module 100 of the seedling throwing mechanism 1000 may also be only installed with the first seedling delivery module 200 and the first seedling taking module 400 to achieve the removal and throwing of the seedlings.

[0080] According to a drone seedling throwing system provided in this embodiment, the working principle of the drone seedling throwing system is as follows:

[0081] When the drone 2000 is flying, the driving source 410 drives the plurality of cutter heads 420 to rotate at high speed, and the cutter heads 420 separate the seedlings from the blankets on the first seedling delivery module 200 and the second seedling delivery module 300, and drive the seedlings to rotate and throw out. At the same time, the first seedling picking module 400 and the second seedling picking module 500 move laterally in opposite directions during the flight, so that the blankets of seedlings are cut and thrown out row by row and bunch by bunch.

[0082] When a row of seedlings in the left and right directions of the blanket is cut, the entire blanket can move downward under the action of gravity or the output of the conveyor belt of the seedling feeding plate, so that the blanket is cut and thrown row by row and bunch by bunch during the process of the first seedling picking module 400 and the second seedling picking module 500 moving in the opposite direction again. This process is repeated until all the blankets are cut and thrown, and the drone 2000 returns to the starting point.

[0083] To summarize, the seedling throwing mechanism 1000 includes a load module 100, a first seedling delivery module 200 and a first seedling retrieval module 400. The load module 100 is used to be installed in the UAV 2000, the first seedling delivery module 200 is arranged on the load module 100, and the first seedling retrieval module 400 is movably arranged on the load module 100, so as to remove the seedlings on the first seedling delivery module 200 row by row and bunch by bunch. The seedlings are removed and thrown out by the seedling delivery module being stationary and the seedling retrieval module being movable, thereby realizing the seedling throwing of the UAV 2000 and reducing the influence of factors such as terrain and plot area. In addition, since there is no need to drive the seedling delivery module to move relative to the load module 100 to realize the removal of the seedlings row by row and bunch by bunch, the inertial impact on the load module 100 is reduced, thereby ensuring the flight stability of the UAV 2000.

[0084] The drone seedling throwing system comprises a drone 2000 and the above-mentioned seedling throwing mechanism 1000 , and the load module 100 is installed on the drone 2000 . The drone seedling throwing system has all the functions of the above-mentioned seedling throwing mechanism 1000 .

[0085] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A seedling throwing mechanism, characterized in that: include: A load module (100), the load module being used to be installed on a drone (2000); a first seedling conveying module (200), wherein the first seedling conveying module (200) is arranged on the loading module (100); and A first seedling taking module (400) is movably arranged on the loading module (100) to take the seedlings from the first seedling delivery module (200) row by row and bunch by bunch.

2. The seedling throwing mechanism according to claim 1, characterized in that: The first seedling removal module (400) is used to eject the removed seedlings by centrifugal force or by an ejection member.

3. The seedling throwing mechanism according to claim 1, characterized in that: The first seedling removing module (400) is disposed on the loading module (100) in a transversely movable manner.

4. The seedling throwing mechanism according to claim 1, characterized in that: The seedling throwing mechanism further comprises a driving device, the driving device being connected to the first seedling taking module (400), and the driving device being used to drive the first seedling taking module (400) to move relative to the load module (100).

5. The seedling throwing mechanism according to claim 4, characterized in that: The driving device comprises a power piece (610) and a threaded rod (620), wherein the power piece (610) and the threaded rod (620) are connected, the threaded rod (620) is rotatably arranged on the load module (100), and the first seedling taking module (400) and the threaded rod (620) are threadedly matched, and the power piece (610) is used to drive the threaded rod (620) to rotate, so that the first seedling taking module (400) moves along the axial direction of the threaded rod (620).

6. The seedling throwing mechanism according to claim 5, characterized in that: The driving device further comprises a sliding connection member (630), one end of which is slidably connected to the load module (100), and the other end of which is connected to the first seedling removing module (400).

7. The seedling throwing mechanism according to claim 5, characterized in that: The number of the first seedling removing modules (400) is multiple, and the multiple first seedling removing modules (400) are threadedly matched with the same threaded rod (620).

8. The seedling throwing mechanism according to claim 1, characterized in that: The seedling throwing mechanism further comprises a second seedling sending module (300) and a second seedling taking module (500), wherein the second seedling sending module (300) is arranged on the load module (100), and the second seedling sending module (300) and the first seedling sending module (200) are arranged in the same direction or opposite to each other; The second seedling taking module (500) is movably arranged on the loading module (100) so as to take the seedlings on the second seedling delivering module (300) row by row and bunch by bunch.

9. The seedling throwing mechanism according to claim 8, characterized in that: The moving direction of the first seedling removing module (400) is opposite to the moving direction of the second seedling removing module (500).

10. A UAV rice seedling throwing system, characterized in that: It comprises an unmanned aerial vehicle (2000) and the rice seedling throwing mechanism according to any one of claims 1 to 9, wherein the load module (100) is installed on the unmanned aerial vehicle (2000).

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