Seedling throwing machine and unmanned aerial vehicle seedling throwing equipment

Abstract

The invention discloses a seedling throwing machine and unmanned aerial vehicle seedling throwing equipment, and the seedling throwing machine comprises a chassis which is provided with a plurality of pop-up pieces which are arranged in a gridding manner and can move up and down, and the top surface of each pop-up piece can be correspondingly provided with a seedling unit; and the ejection mechanism is mounted below the chassis and is used for ejecting the ejection piece, so that the seedling units can be ejected and thrown out one by one. According to the scheme, the base plate for placing the seedlings is fixedly arranged, a mechanism for transferring the seedlings or the base plate does not need to be arranged, meanwhile, energy consumption needed for driving the mechanism for transferring the seedlings or the base plate is saved, and therefore compared with an existing seedling throwing machine, the seedling throwing machine has the advantages of being simplified in structure and low in working energy consumption.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery, and in particular to a rice seedling transplanter and an unmanned aerial vehicle rice seedling transplanting device. Background Art

[0002] During the operation of the seedling throwing machine, the seedling taking mechanism located on one side of the seedling delivery tray takes out one seedling from the seedling delivery tray and throws it out each time. Since the existing seedling taking mechanism is fixed, in order to achieve continuous seedling throwing, a transverse transmission and a longitudinal transmission mechanism need to be set on the seedling delivery tray to transport the seedlings to the position of the seedling taking mechanism in the transverse and longitudinal directions, so that the fixed seedling taking mechanism can continuously take seedlings from the seedling delivery tray. Since the seedling delivery tray itself is large in size and the overall weight of the seedling delivery tray is heavy after loading the seedlings, the existing transverse transmission and longitudinal transmission mechanisms need to be set to larger specifications to provide sufficient power. Due to the setting of the transverse transmission and longitudinal transmission mechanisms, the existing seedling throwing machine has the problems of complex structure and high energy consumption. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a rice seedling transplanter and an unmanned aerial vehicle rice seedling transplanting device, which can solve the above-mentioned problems existing in the prior art.

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

[0005] On the one hand, a rice seedling throwing machine is provided, comprising:

[0006] The chassis is provided with a plurality of pop-up members arranged in a grid and movable up and down, and a seedling unit can be placed correspondingly on the top surface of each pop-up member;

[0007] The ejection mechanism is installed below the chassis and is used to eject the ejection member so that the seedling units can be ejected one by one.

[0008] Optionally, the pop-up member is a retractable and deformable diaphragm or a slider that can slide up and down.

[0009] 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 transfer positions, so that the ejection unit can eject the ejection member at different positions.

[0010] Optionally, the transfer assembly includes at least one first linear transfer unit, on which one or more ejection units are installed at intervals, and the ejection units installed thereon are driven by the first linear transfer unit to move linearly along the first direction.

[0011] Optionally, the first linear transfer unit includes a first linear guide, a first linear slider and a first linear drive, the first linear guide is arranged parallel to the first direction, the first linear slider is slidably installed on the first linear guide, each of the ejection units is correspondingly installed on one of the first linear sliders, and 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.

[0012] Optionally, the transfer assembly also includes a second linear transfer unit vertically arranged with respect to the first linear transfer unit, the first linear transfer unit has one and is connected with the second linear transfer unit, and the first linear transfer unit and the ejection unit are driven to move linearly along the second direction by the second linear transfer unit.

[0013] Optionally, the second linear transfer unit includes a second linear drive and two second linear guide rails which are arranged in parallel and respectively located at both ends of the first linear transfer unit, and a second linear slider which can slide linearly along a second direction is installed on the second linear guide rail. The two ends of the first linear transfer unit are respectively 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.

[0014] Optionally, a cutting mechanism is also included, and the cutting mechanism is used to separate the blanket seedlings into a plurality of the seedling units.

[0015] Optionally, the slitting mechanism includes a mesh knife and a seedling pressing fence, the mesh knife is arranged on the chassis, and the seedling pressing fence is located above the mesh knife, and the seedling blanket is pressed by the seedling pressing fence so that the raised mesh knife can cut the seedling blanket into a plurality of seedling units.

[0016] Optionally, a grid groove corresponding to the grid knife is provided on the chassis, so that the descending grid knife can be embedded in the grid groove; bosses corresponding to the mesh holes of the grid knife are formed on the chassis between the grid grooves, and a pop-up member is correspondingly arranged on each boss.

[0017] Optionally, the slitting mechanism further includes a lifting drive, which is connected to the grid knife and is used to drive the grid knife to move up and down relative to the chassis.

[0018] Optionally, the lifting drive drives the mesh knife to lift and lower a stroke that is set so that the mesh knife never completely escapes from the mesh slot.

[0019] Optionally, the lifting drive includes a relatively movable fixed part and a driving part, the fixed part is fixedly arranged relative to the chassis, and the driving part is connected to the grid knife.

[0020] Optionally, the grid knife includes a blade portion and a support frame surrounding the blade portion, and the driving portion is connected to the support frame.

[0021] Optionally, at least two opposite sides of the support frame are respectively connected to a driving part.

[0022] Optionally, the slitting mechanism also 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 fixed relative to the chassis, and the lifting part is connected to the support frame, and the lifting part is guided by the guide part to linearly lift and lower the lifting part, thereby guiding the lifting and lowering of the grid knife.

[0023] On the other hand, a drone seedling transplanting device is also provided, comprising a drone and a seedling transplanter, wherein the seedling transplanter is mounted under the drone.

[0024] The beneficial effects of the present application are as follows: the present invention provides a rice seedling throwing machine and a drone rice seedling throwing device, the chassis of the rice seedling throwing machine is provided with a plurality of pop-up parts arranged in a grid and movable up and down, and a catapult mechanism is provided under the chassis, during the rice seedling throwing operation, after the rice seedlings are placed on the chassis, the catapult mechanism can eject the pop-up parts, so that the rice seedlings located above the pop-up parts are ejected and thrown out, thereby realizing the rice seedling throwing function. In this scheme, the chassis for placing the rice seedlings is fixedly arranged, and there is no need to set a mechanism for transferring the rice seedlings or the chassis, and at the same time, the energy consumption required for driving the mechanism for transferring the rice seedlings or the chassis is saved, so compared with the existing rice seedling throwing machine, this scheme has the advantages of simplified structure and low working energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present application is further described in detail below based on the drawings and embodiments.

[0026] Figure 1 This is a structural schematic diagram of the rice seedling throwing machine described in an embodiment of the present application;

[0027] Figure 2 This is a schematic structural diagram of the grid knife of the rice seedling throwing machine described in the embodiment of the present application in a lifted state;

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

[0029] Figure 4 A partial cross-sectional view of the chassis described in the embodiment of the present application;

[0030] Figure 5 This is a schematic diagram of the structure of the ejection mechanism described in an embodiment of the present application.

[0031] In the figure:

[0032] 1. chassis; 11. grid groove; 12. boss; 121. upper retaining ring; 122. lower retaining ring; 13. ejection member; 131. limit 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. slitting mechanism; 31. grid knife; 311. blade part; 312. support frame; 32. lifting drive; 321. fixing part; 322. driving part; 33. guide member; 331. guide part; 332. lifting part. DETAILED DESCRIPTION

[0033] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0034] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] During the operation of the seedling throwing machine, the seedling taking mechanism located on one side of the seedling delivery tray takes out one seedling from the seedling delivery tray and throws it out each time. Since the existing seedling taking mechanism is fixed, in order to achieve continuous seedling throwing, a transverse transmission and a longitudinal transmission mechanism need to be set on the seedling delivery tray to transport the seedlings to the position of the seedling taking mechanism in the transverse and longitudinal directions, so that the fixed seedling taking mechanism can continuously take seedlings from the seedling delivery tray. Since the seedling delivery tray itself is large in size and the overall weight of the seedling delivery tray is heavy after loading the seedlings, the existing transverse transmission and longitudinal transmission mechanisms need to be set to larger specifications to provide sufficient power. Due to the setting of the transverse transmission and longitudinal transmission mechanisms, the existing seedling throwing machine has the problems of complex structure and high energy consumption.

[0037] The present embodiment provides a rice seedling transplanter. After the seedlings are loaded onto the chassis 1, there is no need to transport and transfer the seedlings, so there is no need to set up a horizontal and vertical transport mechanism for transporting the seedlings, thereby achieving the effect of simplifying the structure of the rice seedling transplanter and reducing the energy consumption of the rice seedling transplanter.

[0038] Reference Figure 1-5 The rice seedling throwing machine structure of this embodiment includes:

[0039] The chassis 1 is provided with a plurality of pop-up members 13 arranged in a grid and movable up and down, and a seedling unit can be placed correspondingly on the top surface of each pop-up member 13;

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

[0041] Among them, the chassis 1 is used to load seedlings. When in use, each pop-up piece 13 on the chassis 1 supports a seedling unit on the top. The pop-up piece 13 can be used to support the seedling unit to prevent the seedling unit from falling. Using the freedom of the pop-up piece 13 to move up and down, when the ejection mechanism 2 ejects and hits the pop-up piece 13, the pop-up piece 13 that is hit will be pushed upward, and the pop-up piece 13 that is pushed upward will pop out the seedling unit to realize the seedling throwing function.

[0042] It should be noted that in the traditional solution, the installation position of the seedling taking mechanism on the seedling throwing machine is fixed, and the position of each seedling throwing remains unchanged, so as long as the seedling throwing machine moves at a uniform speed, the seedling throwing at equal intervals can be achieved. However, in this solution, the positions of the seedling units corresponding to different pop-up parts 13 on the chassis 1 are different, so relative to the seedling throwing machine, the position of each seedling throwing is different. It can be understood that in order to achieve equal spacing of seedlings, the running speed of the carrier equipped with the seedling throwing machine can be adaptively adjusted to compensate for the changes in the seedling throwing position during the seedling throwing process, so as to achieve the purpose of equal spacing of seedlings. Of course, how to achieve reasonable compensation of the carrier running speed to achieve the effect of equal spacing of seedlings is not part of the improvement content of this solution, so this description will not be repeated.

[0043] In summary, in the rice-throwing machine of this embodiment, a plurality of pop-up members 13 arranged in a grid and movable up and down are provided on the chassis 1, and an ejection mechanism 2 is provided below the chassis 1. During the rice-throwing operation, after the rice seedlings are placed on the chassis 1, the ejection mechanism 2 can eject the pop-up members 13, so that the rice seedlings located above the pop-up members 13 are ejected and thrown out, thereby realizing the rice-throwing function. In this solution, the chassis 1 for placing the rice seedlings is fixedly arranged, and there is no need to set a mechanism for transferring the rice seedlings or the chassis 1, and at the same time, the energy consumption required for driving the mechanism for transferring the rice seedlings or the chassis 1 is saved. Therefore, compared with the existing rice-throwing machine, this solution has the advantages of simplified structure and low working energy consumption.

[0044] In one embodiment, the ejection member 13 is a retractable and deformable membrane or a slider that can slide up and down.

[0045] Specifically, the pop-up member 13 needs to meet the requirement that after the seedlings are loaded, the pop-up member 13 sinks to the lowest position under the downward pressure of the seedling unit, so as to reserve enough space for the pop-up member 13 to rise when popping out. The above requirement can be met by using a retractable and deformable diaphragm or a slider that can slide up and down.

[0046] like Figure 4 As shown, when the pop-up member 13 is set as a slider structure, an upper retaining ring 121 and a lower retaining ring 122 are arranged on the upper and lower inner walls of the lifting channel of the pop-up member 13 on the chassis 1, and a limiting ring 131 is arranged on the outer wall of the pop-up member 13. Under the action of its own weight, the pop-up member 13 drops to the lowest position, and the lower retaining ring 122 cooperates with the limiting ring 131 to limit the pop-up member 13 from continuing to descend; when the ejection mechanism 2 below pops up to lift the pop-up member 13, the pop-up member 13 rises to lift the seedling unit and throw it out, and the upper retaining ring 121 can cooperate with the limiting ring 131 to limit the highest upward position of the pop-up member 13 to prevent the pop-up member 13 from flying out.

[0047] When the pop-up member 13 is set as a diaphragm, the periphery of the diaphragm is fixed to the chassis 1, and the diaphragm is given the freedom to move up and down based on its own deformation ability. When the ejection mechanism 2 below pops up upward, it will apply a certain ejection impact to the seedling unit through the diaphragm, so that the seedlings can be lifted up and thrown out.

[0048] In one embodiment, the ejection mechanism 2 includes an ejection unit 21 and a transfer assembly 22, the ejection unit 21 is installed on the transfer assembly 22, and the transfer assembly 22 drives the ejection unit 21 to transfer position, so that the ejection unit 21 can eject the pop-up member 13 at different positions.

[0049] The ejection unit 21 is equipped with a transfer component 22, which can transfer the position of the ejection unit 21, so that the ejection unit 21 can eject the seedling units at different positions one by one, thereby reducing the number of ejection units 21, simplifying the equipment structure, and reducing the equipment cost.

[0050] The ejection unit 21 may be provided in combination with an existing ejection device, which may be in the form of, but not limited to, pneumatic ejection, spring ejection, and the like.

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

[0052] Specifically, the first direction is parallel to the horizontal row direction on the chassis 1, that is, perpendicular to the moving direction of the entire seedling throwing machine when the seedling throwing machine is working. During operation, after the ejection unit 21 ejects and resets the seedling unit at the original position, the first linear transfer unit 221 can transfer the ejection unit 21 laterally 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, and then cooperate with the movement of the seedling throwing machine itself to achieve the purpose of intermittent seedling throwing. Since the chassis 1 itself can be set to a larger width, multiple ejection units 21 corresponding to the spacing between rows of seedling throwing can be set on the same first linear transfer unit 221 according to the spacing between rows of seedling throwing, so as to achieve the effect of throwing multiple rows of seedlings at one time and improving the efficiency of seedling throwing.

[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 the first direction, the first linear slider 2212 is slidably installed on the first linear guide rail 2211, and each of the ejection units 21 is correspondingly installed 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 can provide support and guidance for the first linear slider 2212, so that the first linear slider 2212 can drive the ejection unit 21 to move stably. In specific implementation, the first linear transfer unit 221 can be set in combination with the existing guide rail translation mechanism, and the driving structure of the first linear slider 2212 can be a screw structure, a gear 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.

[0055] In one embodiment, the transfer assembly 22 also includes a second linear transfer unit 222 vertically arranged with respect to the first linear transfer unit 221, and the first linear transfer unit 221 has one and is connected with the second linear transfer unit 222, and the first linear transfer unit 221 and the ejection unit 21 are driven to move linearly along the second direction by the second linear transfer unit 222.

[0056] Specifically, the second direction is perpendicular to the first direction, and with the arrangement of 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, thereby further reducing the arrangement of the ejection unit 21 and simplifying the mechanism. In the simplest case, a set of the first linear transfer unit 221 and a set of the second linear transfer unit 222 can be arranged to realize the full ejection of the seedling unit 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 which are arranged in parallel and respectively located at the two ends of the first linear transfer unit 221. The second linear guide rails 2221 are provided with second linear sliders 2222 which can slide linearly along the second direction. The two ends of the first linear transfer unit 221 are respectively slidably connected to the second guide rails, and the first linear transfer unit 221 is driven to move linearly along the second direction by the second linear drive.

[0058] Similarly, providing the second linear guide rail 2221 can provide support and guidance for the second linear slider 2222, so that the second linear slider 2222 can drive the first linear transfer unit 221 to move stably longitudinally. In specific implementation, the second linear transfer unit 222 can be set in combination with the existing guide rail translation mechanism, and the driving structure of the second linear slider 2222 can be a screw structure, a gear 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] The present solution is provided with an ejection mechanism 2 to eject the seedling units one by one. The ejection mechanism 2 does not have the function of separating blanket seedlings, so it can only be applied to the seedlings in pots that are independent of each other. However, compared with pot seedlings, the seedling raising cost of blanket seedlings is lower. In order to make blanket seedlings also applicable to the present solution, an embodiment of the solution further includes a cutting mechanism 3, which is used to separate the blanket seedlings into a plurality of the seedling units.

[0060] That is, before throwing the seedlings, the soil layer of the blanket seedlings can be separated by the cutting mechanism 3, so as to divide the blanket seedlings that were originally connected into independent seedling units similar to pot seedlings, so that the ejection mechanism 2 can throw the seedling units one by one. Therefore, the cutting mechanism 3 set based on this solution can make the blanket seedlings also suitable for the rice throwing machine of this embodiment.

[0061] In one embodiment, the slitting mechanism 3 includes a mesh knife 31 and a seedling pressing fence, the mesh knife 31 is arranged on the chassis 1, and the seedling pressing fence is located above the mesh knife 31. The seedlings are pressed by the seedling pressing fence so that the raised mesh knife 31 can cut the seedlings into a plurality of seedling units.

[0062] The mesh knife 31 is a knife structure in a mesh structure, and its top surface has a blade. Mesh holes are formed in the mesh knife 31. When the seedling pressing fence presses the blanket seedlings to restrict the blanket seedlings from moving upward, the upwardly moving mesh knife 31 can quickly cut the soil layer of the blanket seedlings, and an independent soil block is formed in each mesh hole, so that the seedlings in pots can be quickly made. In addition, after the blanket seedlings are divided by the mesh knife 31, the soil layer of each seedling unit is embedded in the mesh holes of the mesh knife 31 one by one, that is, the mesh holes of the mesh knife 31 can be used to fix the seedling units, so that each seedling unit can remain aligned with each pop-up member 13.

[0063] The seedling pressing fence is used to press the soil layer of the blanket seedlings tightly against the upper surface of the chassis 1. When used, the present invention can be set in combination with the existing seedling pressing device. In actual operation, in order to improve the compaction of the soil layer of the blanket seedlings, compared with the existing seedling pressing device, the seedling pressing fence of this scheme can increase the number of seedling pressing rods and increase the density of the seedling pressing rods to increase the compaction area of ​​the soil layer of the blanket seedlings, so that when the grid knife 31 is lifted up to cut the soil layer, the blanket seedlings will not be lifted up. In addition, in order to prevent the seedling pressing fence from hindering the seedling unit from popping out of the chassis 1, the seedling pressing fence should be set as a detachable structure. When dividing, the seedling pressing fence is manually installed on the chassis 1 to compact the blanket seedlings. After the division is completed, the seedling pressing fence is taken out.

[0064] In one embodiment, a grid groove 11 corresponding to the grid knife 31 is provided on the chassis 1, so that the descending grid knife 31 can be embedded in the grid groove 11; a boss 12 corresponding to the mesh of the grid knife 31 is formed on the chassis 1 between the grid grooves 11, and a pop-up member 13 is correspondingly arranged on each of the bosses 12.

[0065] The chassis 1 is provided with a grid slot 11 corresponding to the grid knife 31, referring to Figure 1In the descending state, the grid knife 31 is embedded in the grid groove 11, and the top surface of the grid knife 31 is lower than or flush with the top surface of the chassis 1. At this time, the blanket seedlings can be directly laid flat on the top surface of the chassis 1, and then the blanket seedlings are pressed tightly on the chassis 1 using the seedling pressing fence. The grid knife 31 is lifted upward to cut the soil layer of the blanket seedlings from bottom to top. That is, this scheme uses the grid groove 11 structure on the chassis 1 to accommodate the grid knife 31, so that the blanket seedlings can be laid on the chassis 1 normally, and can provide space for the up and down movement of the grid knife 31 to realize the cutting function. In addition, after the cutting is completed, the grid knife 31 can remain stationary to fix the divided seedling units; after all the seedling units are thrown out, before laying the next plate of blanket seedlings, the grid knife 31 can be lowered and recovered in the grid groove 11.

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

[0067] That is, the lifting drive 32 is provided to drive the lifting of the mesh knife 31, so that the function of automatically lifting the mesh knife 31 can be realized. There is no need to lift the mesh knife 31 manually, which reduces the manpower input, and the lifting drive 32 can effectively speed up the lifting speed of the mesh knife 31, and the weight inertia of the blanket seedlings themselves can be used to offset the top force of the mesh knife 31 on the blanket seedlings, so that the mesh knife 31 can cut into the soil layer of the blanket seedlings more smoothly.

[0068] Of course, in other embodiments, the lifting and lowering of the grid knife 31 can also be directly driven by manpower, that is, manually lifting or pressing down the grid knife 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, referring to Figure 2 The lifting stroke of the lifting drive 32 to drive the mesh knife 31 to rise and fall is set so that the mesh knife 31 never completely escapes from the mesh slot 11.

[0070] Specifically, the grid knife 31 never completely escapes from the grid slot 11, which means that when the grid knife 31 is lifted to the maximum height, its bottom still overlaps with the grid slot 11 to a certain extent, that is, after the grid knife 31 is lifted, it can still block the opening on the top side of the grid slot 11 to prevent sand from entering the grid slot 11 and clogging it. In specific implementation, the lifting stroke of the grid knife 31 is set to be less than the depth of the grid slot 11, so that the grid knife 31 will never completely escape from the grid slot 11 during the lifting process.

[0071] In one embodiment, referring to Figure 2The lifting drive 32 includes a relatively movable fixing portion 321 and a driving portion 322 . The fixing portion 321 is relatively fixedly arranged with respect to the chassis 1 , and the driving portion 322 is connected with the grid knife 31 .

[0072] The fixing part 321 is fixedly arranged relative to the chassis 1, and the driving part 322 is connected to the mesh knife 31, so that when the driving part 322 is lifted relative to the fixing part 321, the mesh knife 31 is driven to be lifted relative to the chassis 1. This structure is conducive to ensuring the stability of the mesh knife 31 during the lifting process relative to the chassis 1.

[0073] In one embodiment, the grid knife 31 includes a blade portion 311 and a support frame 312 disposed around the blade portion 311 , and the driving portion 322 is connected to the support frame 312 .

[0074] Specifically, the blade portion 311 is in a grid structure, and has a blade edge on its top side. A support frame 312 is provided around the blade portion 311 to provide reliable support for the blade portion 311, thereby improving the strength and anti-deformation ability of the entire grid knife 31. The drive portion 322 is connected to the support frame 312, which will not affect the process of the blade portion 311 rising and falling to cut the seedlings.

[0075] In one embodiment, at least two opposite sides of the support frame 312 are respectively connected to a driving portion 322 .

[0076] A lifting drive 32 is respectively arranged on two opposite sides of the support frame 312, which can provide lifting force to the two opposite sides of the support frame 312 at the same time, ensuring that the entire grid knife 31 can maintain horizontal lifting, avoiding the grid knife 31 from tilting relative to the chassis 1 during the lifting process, and improving the stability of the grid knife 31 during the lifting process.

[0077] In one embodiment, the slitting mechanism 3 also includes a guide member 33, and the guide member 33 includes a guide portion 331 and a lifting portion 332 that can be relatively lifted and lowered. The guide portion 331 is relatively fixedly arranged to the chassis 1, and the lifting portion 332 is connected to the support frame 312. The guide portion 331 guides the linear lifting of the lifting portion 332, thereby guiding the lifting and lowering of the grid knife 31.

[0078] Specifically, the guide member 33 can guide the linear lifting of the mesh knife 31, prevent the mesh knife 31 from tilting relative to the chassis 1 during the lifting process, and improve the stability of the mesh knife 31 during the lifting 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 guide part 331 guides the linear lifting of the lifting part 332 to achieve the linear lifting of the mesh knife 31.

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

[0080] In one embodiment, the lifting drive 32 includes a rotating drive member and a lifting transmission member, the input end and the output end of the lifting transmission member are respectively connected to the rotating drive member and the support frame 312, and the lifting transmission member converts the rotating motion of the rotating drive member into the lifting motion of the grid knife 31.

[0081] Specifically, the rotary drive member is a common drive member, which can be a motor, a hydraulic motor, etc., and the rotation of its output shaft drives the lifting transmission member to operate. The lifting transmission member can be a transmission mechanism such as a worm gear, a gear rack, a synchronous belt, a connecting rod, etc., and the rotation of the input end is converted into a linear reciprocating motion of the output end to achieve the function of driving the mesh knife 31 to rise and fall. This solution uses a combination of a rotary drive member and a lifting transmission member to drive the mesh knife 31 to rise and fall, which has the advantages of mature technology and easy implementation.

[0082] In one embodiment, the lifting transmission member includes a screw rod and a threaded sleeve that are threaded together, the screw rod is connected to the rotating drive member, and the threaded sleeve is connected to the support frame 312 .

[0083] Specifically, the rotational freedom of the threaded sleeve is locked by the support frame 312, and the rotary drive member drives the screw rod to rotate, and the screw rod will push the threaded sleeve to rise and fall, so the rotary drive of the rotary drive member can be converted into the lifting movement of the grid knife 31.

[0084] In one embodiment, the lifting transmission member includes a gear and a rack that cooperate with each other, the gear is connected to the rotating drive member, and the rack is connected to the support frame 312 .

[0085] Specifically, the rack is fixedly connected to the support frame 312 , and the rotary drive member drives the gear to rotate, and the gear will push the rack to rise and fall, so that the rotary drive of the rotary drive member can be converted into the lifting movement of the grid knife 31 .

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

[0087] Specifically, the above linear drive components are all existing drive devices, which have the advantages of mature technology and reliable operation. The use of linear drive components can directly output linear drive, eliminating the intermediate transmission components, which is conducive to simplifying the device structure and cost and improving the reliability of the device.

[0088] On the other hand, a drone seedling transplanting device is also provided, comprising a drone and a seedling transplanter, wherein the seedling transplanter is mounted under the drone.

[0089] Specifically, the drone has the advantage of high flight speed, and the rice-throwing machine mounted under the drone does not need to contact the soil and water in the field, so its running resistance is smaller, which is conducive to increasing the transfer speed of the rice-throwing machine, and thus can improve the efficiency of rice-throwing. Similarly, the drone rice-throwing equipment of this embodiment is equipped with the above rice-throwing machine, which adopts a new rice-throwing form, has the advantages of simplified structure and low working energy consumption.

[0090] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0091] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0092] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0093] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. A rice seedling throwing machine, characterized in that: include: The chassis (1) is provided with a plurality of pop-up members (13) arranged in a grid and movable up and down, and a seedling unit can be placed correspondingly on the top surface of each pop-up member (13); An ejection mechanism (2) is installed below the chassis (1) and is used to eject the ejection member (13) so that the seedling units can be ejected one by one.

2. The rice seedling throwing machine according to claim 1, characterized in that: The ejection member (13) is a membrane that can be retracted and deformed or a slider that can slide up and down.

3. The rice seedling throwing machine according to claim 1, characterized in that: The ejection mechanism (2) comprises an ejection unit (21) and a transfer assembly (22); the ejection unit (21) is mounted on the transfer assembly (22); the transfer assembly (22) drives the ejection unit (21) to transfer positions, so that the ejection unit (21) can eject the ejection member (13) at different positions.

4. The rice seedling throwing machine according to claim 3, characterized in that: The transfer assembly (22) comprises at least one first linear transfer unit (221), on which one or more ejection units (21) are installed at intervals, and the ejection units (21) installed thereon are driven by the first linear transfer unit (221) to move linearly along a first direction.

5. The rice seedling throwing machine according to claim 4, characterized in that: The first linear transfer unit (221) comprises 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 of the ejection units (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 rice seedling throwing machine according to claim 4, characterized in that: The transfer assembly (22) further comprises a second linear transfer unit (222) vertically arranged with respect to the first linear transfer unit (221); the first linear transfer unit (221) has one and is connected with the second linear transfer unit (222); the first linear transfer unit (221) and the ejection unit (21) are driven to move linearly along a second direction by the second linear transfer unit (222).

7. The rice transplanter according to claim 6, characterized in that: The second linear transfer unit (222) comprises a second linear drive and two second linear guide rails (2221) arranged in parallel and respectively located at two ends of the first linear transfer unit (221); a second linear slide block (2222) capable of linear sliding movement along a second direction is installed on the second linear guide rail (2221); the two ends of the first linear transfer unit (221) are respectively slidably connected to the second guide rails; the first linear transfer unit (221) is driven to linearly move along the second direction by the second linear drive.

8. The rice seedling throwing machine according to any one of claims 1 to 7, characterized in that: It also comprises a cutting mechanism (3), wherein the cutting mechanism (3) is used to separate the blanket seedlings into a plurality of the seedling units.

9. The rice seedling throwing machine according to claim 8, characterized in that: The slitting mechanism (3) comprises a mesh knife (31) and a seedling pressing fence, wherein the mesh knife (31) is arranged on the chassis (1), and the seedling pressing fence is located above the mesh knife (31). The seedling blanket is pressed by the seedling pressing fence, so that the mesh knife (31) that is lifted up can cut the seedling blanket into a plurality of seedling units.

10. The rice transplanter according to claim 9, characterized in that: The chassis (1) is provided with a grid groove (11) corresponding to the grid knife (31), so that the descending grid knife (31) can be embedded in the grid groove (11); bosses (12) corresponding to the mesh holes of the grid knife (31) are formed on the chassis (1) between the grid grooves (11), and each of the bosses (12) is correspondingly provided with a pop-up member (13).

11. The rice transplanter according to claim 10, characterized in that: The slitting mechanism (3) further comprises a lifting drive (32), wherein the lifting drive (32) is connected to the grid knife (31) and is used to drive the grid knife (31) to move upward and downward relative to the chassis (1).

12. The rice transplanter according to claim 11, characterized in that: The stroke of the lifting drive (32) driving the mesh knife (31) to lift and lower is set so that the mesh knife (31) never completely escapes from the mesh slot (11).

13. The rice transplanter according to claim 11, characterized in that: The lifting drive (32) comprises a relatively movable fixing portion (321) and a driving portion (322), wherein the fixing portion (321) is relatively fixedly arranged with respect to the chassis (1), and the driving portion (322) is connected with the grid knife (31).

14. The rice transplanter according to claim 13, characterized in that: The grid knife (31) comprises a blade portion (311) and a support frame (312) arranged around the periphery of the blade portion (311), and the driving portion (322) is connected to the support frame (312).

15. The rice transplanter according to claim 14, characterized in that: At least two opposite sides of the support frame (312) are respectively connected to a driving portion (322).

16. The rice transplanter according to claim 14, characterized in that: The slitting mechanism (3) further comprises a guide member (33), wherein the guide member (33) comprises a guide portion (331) and a lifting portion (332) which can be lifted and lowered relative to each other, wherein the guide portion (331) is fixedly arranged relative to the chassis (1), and the lifting portion (332) is connected to the support frame (312), and the guide portion (331) guides the linear lifting of the lifting portion (332), thereby guiding the lifting and lowering of the grid knife (31).

17. A drone seedling throwing device, characterized in that: It comprises a drone and a rice-transporting machine, wherein the rice-transporting machine is carried under the drone; the rice-transporting machine is the rice-transporting machine described in any one of claims 1-16.

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