Unmanned aerial vehicle seedling throwing device

Abstract

The application discloses a seedling throwing machine and unmanned aerial vehicle seedling throwing equipment, which comprises a chassis provided with a plurality of up-and-down movable ejection pieces arranged in a grid manner, the top surface of each ejection piece can correspondingly place a seedling unit; and an ejection mechanism is installed below the chassis and used for ejecting the ejection pieces to make the seedling units be thrown one by one. In the scheme, the chassis for placing seedlings is fixedly arranged, and a mechanism for transferring seedlings or the chassis is not arranged, and the energy consumption required by the driving of the mechanism for transferring seedlings or the chassis is saved, so that the scheme has the advantages of simplified structure and low working energy consumption compared with the existing seedling throwing machine.

Description

Technical Field

[0001] This application relates to the technical field of agricultural machinery, and more particularly to a drone-based rice seedling throwing device. Background Technology

[0002] During operation, the seedling-collecting mechanism located on one side of the seedling delivery tray picks up one seedling at a time and throws it out. Since the existing seedling-collecting mechanism is fixed, to achieve continuous seedling throwing, a horizontal and vertical conveying mechanism is needed on the seedling delivery tray to transport the seedlings horizontally and vertically towards the location of the seedling-collecting mechanism, allowing the fixed-position mechanism to continuously collect seedlings from the seedling delivery tray. Because the seedling delivery tray itself is relatively large, and its overall weight is considerable when loaded with seedlings, the existing horizontal and vertical conveying mechanisms need to be of large specifications to provide sufficient power. The inclusion of these horizontal and vertical conveying mechanisms results in existing seedling throwers exhibiting complex structures and high energy consumption. Summary of the Invention

[0003] The purpose of this invention is to provide a drone-based rice transplanting device that can solve the aforementioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On one hand, a drone-based rice transplanting device is provided, characterized in that it includes a drone and a rice transplanter, wherein the rice transplanter is mounted below the drone; the rice transplanter includes:

[0006] The chassis is equipped with multiple pop-out parts that can move up and down in a grid pattern, and the top surface of each pop-out part can be used to place a seedling unit.

[0007] The ejection mechanism is installed below the chassis to launch the ejector piece so that the seedling units can be ejected one by one.

[0008] A slitting mechanism is used to divide the seedlings into multiple seedling units.

[0009] Optionally, the pop-out element is a stretchable and deformable diaphragm or a slider that can slide up and down.

[0010] Optionally, the ejection mechanism includes an ejection unit and a transfer assembly. The ejection unit is mounted on the transfer assembly, and the transfer assembly drives the ejection unit to change position, so that the ejection unit can eject the ejected parts at different positions.

[0011] Optionally, the transfer assembly includes at least one first linear transfer unit, on which one or more ejector units are mounted at intervals, and the ejector units mounted thereon are driven to move linearly along a first direction by the first linear transfer unit.

[0012] Optionally, the first linear transfer unit includes a first linear guide rail, a first linear slider, and a first linear drive. The first linear guide rail is arranged parallel to the first direction, and the first linear slider is slidably mounted on the first linear guide rail. Each ejection unit is correspondingly mounted on one of the first linear sliders. The first linear drive drives the first linear slider to slide along the first direction, thereby driving the ejection unit to move linearly in the first direction.

[0013] Optionally, the transfer assembly further includes a second linear transfer unit disposed perpendicular to the first linear transfer unit. The first linear transfer unit is one and connected to the second linear transfer unit. The second linear transfer unit drives the first linear transfer unit and the ejection unit to move linearly along the second direction.

[0014] Optionally, the second linear transfer unit includes a second linear drive and two second linear guide rails arranged in parallel and located at both ends of the first linear transfer unit. A second linear slider that can slide linearly along a second direction is installed on the second linear guide rail. Both ends of the first linear transfer unit are slidably connected to the second guide rails, and the first linear transfer unit is driven to move linearly along the second direction by the second linear drive.

[0015] Optionally, a slitting mechanism may also be included, which is used to divide the blanket seedlings into multiple seedling units.

[0016] Optionally, the cutting mechanism includes a grid blade and a pressing bar. The grid blade is disposed on the chassis, and the pressing bar is located above the grid blade. The pressing bar presses the seedlings, so that the raised grid blade can cut the seedlings into multiple seedling units.

[0017] Optionally, the chassis is provided with a mesh groove corresponding to the mesh blade, so that the descending mesh blade can be embedded in the mesh groove; the chassis is formed with protrusions corresponding to the mesh holes of the mesh blade between the mesh grooves, and each of the protrusions is provided with a pop-out member.

[0018] Optionally, the slitting mechanism further includes a lifting drive, which is connected to the mesh blade and is used to drive the mesh blade to move up and down relative to the chassis.

[0019] Optionally, the stroke of the lifting drive that causes the mesh cutter to rise and fall is set such that the mesh cutter is never completely disengaged from the mesh groove.

[0020] Optionally, the lifting drive includes a fixed part and a driving part that are relatively movable. The fixed part is fixedly disposed relative to the chassis, and the driving part is connected to the mesh blade.

[0021] Optionally, the mesh cutter includes a blade portion and a support frame surrounding the periphery of the blade portion, and the drive portion is connected to the support frame.

[0022] Optionally, at least two opposing sides of the support frame are each connected to a drive unit.

[0023] Optionally, the slitting mechanism further includes a guide member, which includes a guide part and a lifting part that can be raised and lowered relative to each other. The guide part is fixedly disposed relative to the chassis, and the lifting part is connected to the support frame. The guide part guides the linear raising and lowering of the lifting part, and guides the raising and lowering of the grid blade.

[0024] The beneficial effects of this application are as follows: This invention provides a rice transplanter and a drone-based rice transplanting device. The rice transplanter has multiple grid-arranged, vertically movable ejector components on its chassis, and a catapult mechanism is located below the chassis. During transplanting, after the seedlings are placed on the chassis, the catapult mechanism can launch the ejector components, causing the seedlings above the ejector components to be ejected, thus achieving the transplanting function. In this solution, the chassis for placing the seedlings is fixed, eliminating the need for a mechanism to transfer the seedlings or the chassis, and saving the energy required to drive such a mechanism. Therefore, compared with existing rice transplanters, this solution has the advantages of simplified structure and low energy consumption. Attached Figure Description

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a schematic diagram of the structure of the rice transplanter described in the embodiments of this application;

[0027] Figure 2 This is a schematic diagram of the grid blades of the rice transplanter described in the embodiments of this application in the raised state;

[0028] Figure 3 This is a schematic diagram of the chassis structure described in the embodiments of this application;

[0029] Figure 4 This is a partial sectional view of the chassis described in the embodiments of this application;

[0030] Figure 5 This is a schematic diagram of the ejection mechanism described in the embodiments of this application.

[0031] In the picture:

[0032] 1. Chassis; 11. Mesh groove; 12. Boss; 121. Upper retaining ring; 122. Lower retaining ring; 13. Pop-out component; 131. Limiting ring; 2. Ejection mechanism; 21. Ejection unit; 22. Transfer assembly; 221. First linear transfer unit; 2211. First linear guide rail; 2212. First linear slider; 222. Second linear transfer unit; 2221. Second linear guide rail; 2222. Second linear slider; 3. Cutting mechanism; 31. Mesh blade; 311. Blade part; 312. Support frame; 32. Lifting drive; 321. Fixing part; 322. Driving part; 33. Guide component; 331. Guide part; 332. Lifting part. Detailed Implementation

[0033] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] During operation, the seedling-collecting mechanism located on one side of the seedling delivery tray picks up one seedling at a time and throws it out. Since the existing seedling-collecting mechanism is fixed, to achieve continuous seedling throwing, a horizontal and vertical conveying mechanism is needed on the seedling delivery tray to transport the seedlings horizontally and vertically towards the location of the seedling-collecting mechanism, allowing the fixed-position mechanism to continuously collect seedlings from the seedling delivery tray. Because the seedling delivery tray itself is relatively large, and its overall weight is considerable when loaded with seedlings, the existing horizontal and vertical conveying mechanisms need to be of large specifications to provide sufficient power. The inclusion of these horizontal and vertical conveying mechanisms results in existing seedling throwers exhibiting complex structures and high energy consumption.

[0037] This embodiment provides a rice transplanter. After the seedlings are loaded onto the chassis 1, there is no need to transport or transfer the seedlings. Therefore, there is no need to set up a lateral and longitudinal conveying mechanism for transferring seedlings, which simplifies the structure of the rice transplanter and reduces the energy consumption of the rice transplanter.

[0038] Reference Figure 1-5 The structure of the rice transplanter in this embodiment includes:

[0039] The chassis 1 is provided with multiple pop-out parts 13 arranged in a grid pattern that can move up and down. The top surface of each pop-out part 13 can be used to place a seedling unit.

[0040] The ejection mechanism 2 is installed below the chassis 1 and is used to launch the ejector 13 so that the seedling units can be ejected one by one.

[0041] The chassis 1 is used to load seedlings. In use, each pop-out piece 13 on the chassis 1 supports a seedling unit on top. The pop-out piece 13 can support the seedling unit and prevent it from falling. Taking advantage of the freedom of the pop-out piece 13 to move up and down, when the ejector mechanism 2 ejects and hits the pop-out piece 13, the hit pop-out piece 13 will be pushed upward, and the pop-out piece 13 pushed upward will eject the seedling unit, thus realizing the seedling throwing function.

[0042] It should be noted that in traditional solutions, the seedling-collecting mechanism is fixed in its installation position on the rice-throwing machine, and the seedling-throwing position remains unchanged each time. Therefore, as long as the rice-throwing machine moves at a constant speed, evenly spaced seedlings can be thrown. However, in this solution, the positions of the seedling units on the chassis 1 corresponding to different ejector parts 13 are different. Therefore, the seedling-throwing position is different each time relative to the rice-throwing machine. It is understandable that, in order to achieve evenly spaced seedlings, the operating speed of the carrier carrying the rice-throwing machine can be adaptively adjusted to compensate for the changes in the seedling-throwing position during the throwing process, thereby achieving the goal of evenly spaced seedlings. Of course, how to reasonably compensate the operating speed of the carrier to achieve the effect of evenly spaced seedlings is not part of the improvement content of this solution, so this description will not elaborate on it.

[0043] In summary, in this embodiment of the rice transplanter, the chassis 1 is equipped with multiple grid-arranged, vertically movable ejector pieces 13. Simultaneously, a launching mechanism 2 is located below the chassis 1. During transplanting, after the seedlings are placed on the chassis 1, the launching mechanism 2 can launch the ejector pieces 13, causing the seedlings above the ejector pieces 13 to be ejected, thus achieving the transplanting function. In this solution, the chassis 1 used for placing seedlings is fixed, eliminating the need for a mechanism to transfer seedlings or the chassis 1. This also saves the energy required to drive the mechanism for transferring seedlings or the chassis 1. Therefore, compared to existing rice transplanters, this solution has the advantages of simplified structure and low energy consumption.

[0044] In one embodiment, the pop-out element 13 is a stretchable and deformable diaphragm or a slider that can slide up and down.

[0045] Specifically, the pop-out component 13 must meet the requirement that, after the seedlings are loaded, it sinks to its lowest position under the pressure of the seedling unit, so as to reserve sufficient space for the pop-out component 13 to rise when it pops out. A telescopic diaphragm or a slider that can slide up and down can both meet the above requirements.

[0046] like Figure 4 As shown, when the pop-out component 13 is configured as a slider structure, an upper retaining ring 121 and a lower retaining ring 122 are provided on the inner wall of the lifting channel of the pop-out component 13 on the chassis 1. A limiting ring 131 is provided on the outer wall of the pop-out component 13. Under its own weight, the pop-out component 13 descends to the lowest position. The lower retaining ring 122 and the limiting ring 131 cooperate to restrict the pop-out component 13 from continuing to descend. When the ejection mechanism 2 below pops up and lifts the pop-out component 13, the pop-out component 13 rises and lifts up and throws out the seedling unit. Moreover, the upper retaining ring 121 can cooperate with the limiting ring 131 to restrict the highest upward position of the pop-out component 13 and prevent the pop-out component 13 from flying out.

[0047] When the ejector 13 is set as a diaphragm, the periphery of the diaphragm is fixed to the chassis 1. Based on the deformation capability of the diaphragm itself, it is given the freedom to move up and down. When the ejection mechanism 2 below ejects upward, it will apply a certain ejection impact to the seedling unit through the diaphragm, thereby lifting and throwing the seedling.

[0048] In one embodiment, the ejection mechanism 2 includes an ejection unit 21 and a transfer component 22. The ejection unit 21 is mounted on the transfer component 22. The transfer component 22 drives the ejection unit 21 to change position, so that the ejection unit 21 can eject the ejector 13 at different positions.

[0049] Equipping the ejection unit 21 with a transfer component 22 allows the ejection unit 21 to be moved, enabling it to eject seedling units at different positions one by one. This reduces the number of ejection units 21 required, simplifies the equipment structure, and lowers equipment costs.

[0050] The ejection unit 21 can be combined with existing ejection devices, and it can be, but is not limited to, pneumatic ejection, spring ejection, etc.

[0051] In one embodiment, the transfer component 22 includes at least one first linear transfer unit 221, on which one or more ejector units 21 are installed at intervals. The first linear transfer unit 221 drives the ejector units 21 installed thereon to move linearly along a first direction.

[0052] Specifically, the first direction is parallel to the horizontal direction on the chassis 1, that is, perpendicular to the overall movement direction of the rice transplanter during operation. During operation, after the ejection unit 21 ejects and resets the seedling unit in its original position, the first linear transfer unit 221 can laterally transfer the ejection unit 21 along the first direction to the position corresponding to the next seedling unit, so that the ejection unit 21 can eject the next seedling unit. Combined with the movement of the rice transplanter itself, the purpose of intermittent rice transplanting is achieved. Since the chassis 1 itself can be set to a large width, multiple ejection units 21 corresponding to the row spacing of rice transplanting can be set on the same first linear transfer unit 221, according to the row spacing of rice transplanting, to achieve the effect of transplanting multiple rows at once and improving the efficiency of rice transplanting.

[0053] Regarding the implementation of the first linear transfer unit 221, in one embodiment, the first linear transfer unit 221 includes a first linear guide rail 2211, a first linear slider 2212, and a first linear drive. The first linear guide rail 2211 is arranged parallel to a first direction, and the first linear slider 2212 is slidably mounted on the first linear guide rail 2211. Each ejection unit 21 is correspondingly mounted on one of the first linear sliders 2212. The first linear drive drives the first linear slider 2212 to slide along the first direction, thereby driving the ejection unit 21 to move linearly in the first direction.

[0054] Specifically, the first linear guide rail 2211 provides support and guidance for the first linear slider 2212, enabling the first linear slider 2212 to drive the ejection unit 21 to move stably laterally. In specific implementations, the first linear transfer unit 221 can be set up in conjunction with the existing guide rail translation mechanism. The driving structure of the first linear slider 2212 can be a lead screw structure, a gear and rack structure, a pneumatic structure, a hydraulic structure, etc., and those skilled in the art can freely choose and set it according to the actual situation.

[0055] In one embodiment, the transfer component 22 further includes a second linear transfer unit 222 disposed perpendicularly to the first linear transfer unit 221. The first linear transfer unit 221 has one unit and is connected to the second linear transfer unit 222. The second linear transfer unit 222 drives the first linear transfer unit 221 and the ejection unit 21 to move linearly along the second direction.

[0056] Specifically, the second direction is perpendicular to the first direction. Combined with the first linear transfer unit 221 and the second linear transfer unit 222, the linear movement of the ejection unit 21 can be converted into surface movement, further reducing the number of ejection units 21 and simplifying the mechanism. In its simplest form, setting up one set of first linear transfer units 221 and one set of second linear transfer units 222 is sufficient to fully eject the seedling units on the chassis 1.

[0057] In one embodiment, the second linear transfer unit 222 includes a second linear drive and two second linear guide rails 2221 arranged in parallel and located at both ends of the first linear transfer unit 221. A second linear slider 2222 that can slide linearly along a second direction is installed on the second linear guide rails 2221. Both ends of the first linear transfer unit 221 are slidably connected to the second guide rails. The second linear drive drives the first linear transfer unit 221 to move linearly along the second direction.

[0058] Similarly, the second linear guide rail 2221 provides support and guidance for the second linear slider 2222, enabling the second linear slider 2222 to drive the first linear transfer unit 221 to move stably longitudinally. In specific implementations, the second linear transfer unit 222 can be set up in conjunction with the existing guide rail translation mechanism. The driving structure of the second linear slider 2222 can be a lead screw structure, a gear and rack structure, a pneumatic structure, a hydraulic structure, etc., and those skilled in the art can freely choose the setting according to the actual situation.

[0059] This solution uses a launching mechanism 2 to launch the seedling units one by one. The launching mechanism 2 does not have the function of separating the seedlings in the blanket, therefore it is only suitable for potted seedlings where each seedling unit is independent. However, compared to potted seedlings, blanket seedlings have a lower seedling cost. To make blanket seedlings also suitable for this solution, one embodiment further includes a cutting mechanism 3, which is used to divide the blanket seedlings into multiple seedling units.

[0060] That is, before transplanting, the cutting mechanism 3 can separate the soil layer of the seedbed, dividing the originally continuous seedbed into individual seedling units similar to potted seedlings, so that the ejection mechanism 2 can eject the seedling units one by one. Therefore, the cutting mechanism 3 based on this solution can also be used in the transplanter of this embodiment for seedbed seedlings.

[0061] In one embodiment, the cutting mechanism 3 includes a grid blade 31 and a pressing bar. The grid blade 31 is disposed on the chassis 1, and the pressing bar is located above the grid blade 31. The pressing bar presses the seedlings, so that the raised grid blade 31 can cut the seedlings into multiple seedling units.

[0062] The grid blade 31 is a grid-structured blade with a sharp edge on its top surface. Mesh openings are formed within the grid blade 31. When the seedling pressing grid compresses the seedlings, restricting their upward movement, the upward-moving grid blade 31 quickly cuts through the soil layer of the seedlings, forming an independent soil block within each mesh opening, thus enabling rapid seedling preparation. Furthermore, by using the grid blade 31 to divide the seedlings, the soil layer of each seedling unit is embedded one-to-one within the mesh openings of the grid blade 31. This mesh openings of the grid blade 31 can fix the seedling units, ensuring that each seedling unit remains aligned with the ejector pins 13.

[0063] The seedling pressing bar is used to press the soil layer of the seedlings firmly against the upper surface of the base plate 1. In application, it can be combined with existing seedling pressing devices. In actual operation, to improve the compaction of the soil layer, compared to existing seedling pressing devices, the seedling pressing bar of this solution can increase the number and density of pressing rods to increase the compaction area of ​​the soil layer, so that the seedlings are not pushed upwards when the grid blade 31 lifts up to cut the soil layer. Furthermore, to avoid the seedling pressing bar obstructing the seedling units from popping out of the base plate 1, the seedling pressing bar should preferably be a detachable structure. During segmentation, the seedling pressing bar is manually installed on top of the base plate 1 to press the seedlings firmly; after segmentation, the seedling pressing bar is removed.

[0064] In one embodiment, the chassis 1 is provided with a mesh groove 11 corresponding to the mesh blade 31, so that the descending mesh blade 31 can be embedded in the mesh groove 11; the chassis 1 is formed with protrusions 12 corresponding to the mesh holes of the mesh blade 31 between the mesh grooves 11, and each protrusion 12 is provided with a corresponding pop-out member 13.

[0065] The chassis 1 is provided with a mesh groove 11 corresponding to the mesh cutter 31, as shown in the figure. Figure 1In the descending state, the grid blade 31 is embedded in the grid groove 11, with the top surface of the grid blade 31 lower than or flush with the top surface of the base plate 1. At this time, the seedlings can be directly laid flat on the top surface of the base plate 1. Then, the seedling pressing rail is used to press the seedlings firmly onto the base plate 1. The grid blade 31 is then raised to cut the soil layer of the seedlings from bottom to top. That is, this solution utilizes the grid groove 11 structure on the base plate 1 to house the grid blade 31, allowing the seedlings to be laid normally on the base plate 1, while also providing space for the grid blade 31 to move up and down, thus achieving the cutting function. In addition, after the cutting is completed, the grid blade 31 can remain stationary to fix the divided seedling units; after all the seedling units are thrown out, before laying the next tray of seedlings, the grid blade 31 can be lowered and retrieved into the grid groove 11.

[0066] In one embodiment, the slitting mechanism 3 further includes a lifting drive 32, which is connected to the mesh blade 31 and is used to drive the mesh blade 31 to move up and down relative to the chassis 1.

[0067] That is, by setting the lifting drive 32 to drive the lifting of the grid cutter 31, the function of automatically lifting the grid cutter 31 can be realized. There is no need for manual lifting of the grid cutter 31, reducing the labor input. Moreover, the lifting drive 32 can effectively speed up the lifting speed of the grid cutter 31. The weight inertia of the seedbed itself can be used to counteract the pushing force of the grid cutter 31 on the seedbed, so that the grid cutter 31 can cut into the soil layer of the seedbed more smoothly.

[0068] Of course, in other embodiments, the raising and lowering of the grid blade 31 can also be driven manually, that is, manually raising or lowering the grid blade 31 to achieve the purpose of cutting seedlings. This method can greatly simplify the structure of the device and reduce the cost of the device.

[0069] In one embodiment, reference is made to Figure 2 The stroke of the lifting drive 32 driving the mesh cutter 31 to rise and fall is set such that the mesh cutter 31 is never completely disengaged from the mesh groove 11.

[0070] Specifically, the mesh cutter 31 is never completely disengaged from the mesh groove 11. This means that when the mesh cutter 31 is raised to its maximum height, its bottom still overlaps with the mesh groove 11 to a certain extent. In other words, after the mesh cutter 31 is raised, it can still maintain a seal on the opening on the top side of the mesh groove 11 to prevent sand from entering the mesh groove 11 and causing blockage. In specific implementation, setting the lifting stroke of the mesh cutter 31 to be less than the depth of the mesh groove 11 will ensure that the mesh cutter 31 will never completely disengage from the mesh groove 11 during the lifting process.

[0071] In one embodiment, reference is made to Figure 2The lifting drive 32 includes a fixed part 321 and a drive part 322 that are movable relative to each other. The fixed part 321 is fixedly disposed relative to the chassis 1, and the drive part 322 is connected to the mesh blade 31.

[0072] The fixed part 321 is fixedly disposed relative to the chassis 1, and the driving part 322 is connected to the mesh cutter 31, so that when the driving part 322 moves up and down relative to the fixed part 321, it will drive the mesh cutter 31 to move up and down relative to the chassis 1. This structure helps to ensure the stability of the mesh cutter 31 during the moving up and down process relative to the chassis 1.

[0073] In one embodiment, the mesh blade 31 includes a blade portion 311 and a support frame 312 surrounding the periphery of the blade portion 311, and the drive portion 322 is connected to the support frame 312.

[0074] Specifically, the blade section 311 has a grid structure with a cutting edge on its top side. A support frame 312 is provided around the blade section 311 to provide reliable support, thereby improving the strength and deformation resistance of the entire grid blade 31. Connecting the drive unit 322 to the support frame 312 will not affect the lifting and lowering cutting process of the blade section 311.

[0075] In one embodiment, at least two opposing sides of the support frame 312 are respectively connected to a drive unit 322.

[0076] A lifting drive 32 is set on each of the two opposite sides of the support frame 312. It can simultaneously provide lifting force to the two opposite sides of the support frame 312, ensuring that the entire mesh cutter 31 can maintain horizontal lifting and lowering, avoiding the mesh cutter 31 from tilting relative to the chassis 1 during the lifting and lowering process, and improving the stability of the mesh cutter 31 during the lifting and lowering process.

[0077] In one embodiment, the slitting mechanism 3 further includes a guide member 33, which includes a guide part 331 and a lifting part 332 that can be raised and lowered relative to each other. The guide part 331 is fixedly disposed relative to the chassis 1, and the lifting part 332 is connected to the support frame 312. The guide part 331 guides the linear raising and lowering of the lifting part 332, and guides the raising and lowering of the grid blade 31.

[0078] Specifically, the guide member 33 guides the linear lifting and lowering of the mesh cutter 31, preventing the mesh cutter 31 from tilting relative to the chassis 1 during the lifting and lowering process, thus improving the stability of the mesh cutter 31 during the lifting and lowering process. The guide part 331 specifically provides a guide rail function, and the lifting part 332 specifically provides a slider function. The lifting part 332 is slidably mounted on the guide part 331, and the linear lifting and lowering of the lifting part 332 is guided by the guide part 331 to realize the linear lifting and lowering of the mesh cutter 31.

[0079] Preferably, a guide member 33 is provided at each of the four corners of the grid blade 31.

[0080] In one embodiment, the lifting drive 32 includes a rotary drive component and a lifting transmission component. The input end and output end of the lifting transmission component are respectively connected to the rotary drive component and the support frame 312. The lifting transmission component converts the rotational motion of the rotary drive component into the lifting motion of the mesh blade 31.

[0081] Specifically, the rotary drive component is a common type of drive component, such as an electric motor or hydraulic motor. Its output shaft rotation drives the lifting transmission component, which can be a worm gear, rack and pinion, synchronous belt, or connecting rod, etc. The input rotation is converted into linear reciprocating motion at the output, thus achieving the function of raising and lowering the mesh cutter 31. This solution uses a combination of a rotary drive component and a lifting transmission component to drive the raising and lowering of the mesh cutter 31, which has the advantages of mature technology and ease of implementation.

[0082] In one embodiment, the lifting transmission component includes a threaded screw and a threaded sleeve, the screw being connected to the rotary drive component, and the threaded sleeve being connected to the support frame 312.

[0083] Specifically, the rotational freedom of the threaded sleeve is locked by the support frame 312. The rotational drive component drives the lead screw to rotate, and the lead screw will push the threaded sleeve to rise and fall. Therefore, the rotational drive of the rotational drive component can be converted into the lifting and lowering motion of the mesh cutter 31.

[0084] In one embodiment, the lifting transmission component includes a gear and a rack that mesh with each other, the gear being connected to the rotary drive component, and the rack being connected to the support frame 312.

[0085] Specifically, the rack is fixedly connected to the support frame 312. The rotary drive drives the gear to rotate, and the gear will push the rack to rise and fall. Thus, the rotary drive of the rotary drive can be converted into the rising and falling motion of the mesh cutter 31.

[0086] In one embodiment, the lifting drive 32 components include a linear drive component, which is an electromagnet, a cylinder, or a hydraulic cylinder.

[0087] Specifically, the linear drive components mentioned above are all existing drive devices, possessing the advantages of mature technology and reliable operation. Using linear drive components allows for direct linear drive output, eliminating intermediate transmission components, which simplifies the device structure, reduces cost, and improves reliability.

[0088] On the other hand, a drone rice-throwing device is also provided, including a drone and a rice-throwing machine, wherein the rice-throwing machine is mounted under the drone.

[0089] Specifically, drones have the advantage of high flight speed, and the rice transplanter mounted beneath the drone does not need to come into contact with the soil and water in the field, resulting in less running resistance and improving the transfer speed of the transplanter, thus increasing transplanting efficiency. Similarly, the drone-based rice transplanting device in this embodiment is equipped with the above-mentioned transplanter, which adopts a new transplanting method and has the advantages of simplified structure and low energy consumption.

[0090] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0091] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0092] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0093] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A drone-based rice transplanting device, characterized in that, The system includes a drone and a rice transplanter, with the rice transplanter mounted beneath the drone; the rice transplanter includes: The chassis (1) is provided with multiple pop-out parts (13) arranged in a grid pattern that can move up and down. Each pop-out part (13) can have a seedling unit placed on its top surface. The ejection mechanism (2) is installed below the chassis (1) and is used to eject the ejector (13) so that the seedling units can be ejected one by one. The slitting mechanism (3) is used to divide the seedlings into multiple seedling units.

2. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 1, characterized in that, The pop-out element (13) is a stretchable and deformable diaphragm or a slider that can slide up and down.

3. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 1, characterized in that, The ejection mechanism (2) includes an ejection unit (21) and a transfer component (22). The ejection unit (21) is mounted on the transfer component (22). The transfer component (22) drives the ejection unit (21) to change position, so that the ejection unit (21) can eject the ejector (13) at different positions.

4. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 3, characterized in that, The transfer assembly (22) includes at least one first linear transfer unit (221), on which one or more ejector units (21) are installed at intervals. The first linear transfer unit (221) drives the ejector units (21) installed thereon to move linearly along a first direction.

5. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 4, characterized in that, The first linear transfer unit (221) includes a first linear guide rail (2211), a first linear slider (2212), and a first linear drive. The first linear guide rail (2211) is arranged parallel to the first direction. The first linear slider (2212) is slidably mounted on the first linear guide rail (2211). Each ejection unit (21) is correspondingly mounted on one of the first linear sliders (2212). The first linear drive drives the first linear slider (2212) to slide along the first direction, thereby driving the ejection unit (21) to move linearly in the first direction.

6. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 4, characterized in that, The transfer assembly (22) further includes a second linear transfer unit (222) arranged perpendicularly to the first linear transfer unit (221). The first linear transfer unit (221) has one unit and is connected to the second linear transfer unit (222). The second linear transfer unit (222) drives the first linear transfer unit (221) and the ejection unit (21) to move linearly along the second direction.

7. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 6, characterized in that, The second linear transfer unit (222) includes a second linear drive and two second linear guide rails (2221) arranged in parallel and located at both ends of the first linear transfer unit (221). A second linear slider (2222) that can slide linearly along a second direction is installed on the second linear guide rails (2221). Both ends of the first linear transfer unit (221) are slidably connected to the second linear guide rails (2221). The first linear transfer unit (221) is driven to move linearly along the second direction by the second linear drive.

8. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 1, characterized in that, The cutting mechanism (3) includes a grid blade (31) and a pressing bar. The grid blade (31) is set on the chassis (1), and the pressing bar is located above the grid blade (31). The pressing bar presses the seedlings, so that the raised grid blade (31) can cut the seedlings into multiple seedling units.

9. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 8, characterized in that, The chassis (1) is provided with a mesh groove (11) corresponding to the mesh blade (31), so that the descending mesh blade (31) can be embedded in the mesh groove (11); the chassis (1) is formed with a boss (12) corresponding to the mesh hole of the mesh blade (31) between the mesh grooves (11), and a pop-out member (13) is provided on each boss (12).

10. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 9, characterized in that, The slitting mechanism (3) further includes a lifting drive (32), which is connected to the mesh blade (31) and is used to drive the mesh blade (31) to move up and down relative to the chassis (1).

11. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 10, characterized in that, The stroke of the lifting drive (32) driving the mesh cutter (31) to rise and fall is set such that the mesh cutter (31) is never completely disengaged from the mesh groove (11).

12. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 10, characterized in that, The lifting drive (32) includes a relatively movable fixed part (321) and a drive part (322). The fixed part (321) is fixedly disposed relative to the chassis (1), and the drive part (322) is connected to the mesh blade (31).

13. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 12, characterized in that, The mesh blade (31) includes a blade portion (311) and a support frame (312) surrounding the periphery of the blade portion (311), and the drive portion (322) is connected to the support frame (312).

14. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 13, characterized in that, At least two opposing sides of the support frame (312) are respectively connected to a drive unit (322).

15. The unmanned aerial vehicle (UAV) rice transplanting device according to claim 13, characterized in that, The slitting mechanism (3) further includes a guide member (33), which includes a guide part (331) and a lifting part (332) that can be raised and lowered relative to each other. The guide part (331) is fixedly arranged relative to the chassis (1), and the lifting part (332) is connected to the support frame (312). The guide part (331) guides the linear raising and lowering of the lifting part (332) and guides the raising and lowering of the grid blade (31).

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