CN114030617A - Scatter device and unmanned aerial vehicle - Google Patents

Scatter device and unmanned aerial vehicle Download PDF

Info

Publication number
CN114030617A
CN114030617A CN202111523220.9A CN202111523220A CN114030617A CN 114030617 A CN114030617 A CN 114030617A CN 202111523220 A CN202111523220 A CN 202111523220A CN 114030617 A CN114030617 A CN 114030617A
Authority
CN
China
Prior art keywords
main body
disc
pick
scattering
center
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111523220.9A
Other languages
Chinese (zh)
Inventor
吴旭民
关向阳
陈鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Xaircraft Technology Co Ltd
Original Assignee
Guangzhou Xaircraft Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Xaircraft Technology Co Ltd filed Critical Guangzhou Xaircraft Technology Co Ltd
Priority to CN202111523220.9A priority Critical patent/CN114030617A/en
Publication of CN114030617A publication Critical patent/CN114030617A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/16Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C15/00Fertiliser distributors
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/08Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/085Broadcast seeders
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/08Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/16Seeders with other distributing devices, e.g. brushes, discs, screws or slides
    • A01C7/163Gravity distributors
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/20Parts of seeders for conducting and depositing seed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C39/00Aircraft not otherwise provided for
    • B64C39/02Aircraft not otherwise provided for characterised by special use
    • B64C39/024Aircraft not otherwise provided for characterised by special use of the remote controlled vehicle type, i.e. RPV
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00UAVs specially adapted for particular uses or applications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sowing (AREA)

Abstract

The invention provides a sowing device and an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. The scattering device comprises a vertically arranged scattering disk. The sowing disc comprises a disc main body and a shifting sheet; the plectrum sets up on the dish main part, and the central interval of plectrum and dish main part sets up to form the feeding region who is used for accepting the material between plectrum and dish main part center. The unmanned aerial vehicle provided by the invention adopts the sowing device. The sowing device and the unmanned aerial vehicle provided by the invention can improve the phenomenon of uneven sowing caused by a sowing mode in the prior art.

Description

Scatter device and unmanned aerial vehicle
Technical Field
The invention relates to the technical field of unmanned aerial vehicles, in particular to a sowing device and an unmanned aerial vehicle.
Background
With the progress of science and technology, more and more manual works are replaced by machines so as to reduce the energy consumption of consumers and improve the convenience. For example, in the agricultural field, more and more agricultural operations can be replaced by unmanned aerial vehicles, and the unmanned aerial vehicles can replace consumers to complete operations with large difficulty, large position deviation and large workload, so that the energy consumption of the consumers is greatly reduced.
In prior art, in the agricultural, the seeding of seed and fertilizer has adopted unmanned aerial vehicle by a wide margin, but under the condition that unmanned aerial vehicle scatters, because the mode of seed or fertilizer is thrown out in the jet-propelled of general unmanned aerial vehicle adoption is in order to sow, just often appear scattering inhomogeneous phenomenon, lead to from this to scatter the effect not good, reduced and used experience.
Disclosure of Invention
The invention aims to provide a sowing device which can improve the phenomenon of uneven sowing caused by a sowing mode in the prior art.
The invention also aims to provide the unmanned aerial vehicle, which can improve the phenomenon of uneven sowing caused by a sowing mode in the prior art.
Embodiments of the invention may be implemented as follows:
the embodiment of the invention provides a sowing device, which comprises a sowing disc vertically arranged;
the sowing plate comprises a plate main body and a shifting piece; the poking sheet is arranged on the disc main body, and the poking sheet and the center of the disc main body are arranged at intervals so as to form a feeding area for receiving materials between the poking sheet and the center of the disc main body.
Compared with the prior art, the sowing device provided by the invention has the beneficial effects that:
in the spreading device, as the spreading disc is vertically arranged, under the condition that the materials are conveyed to the spreading disc, the materials enter a feeding area and then fall under the action of self gravity; in the rotating process of the scattering disk, the materials can be beaten by the poking pieces so as to be scattered to the designated position. Wherein, because the vertical setting of dish main part can make things convenient for the material to fall to plectrum department along the direction of gravity to dial the material effectively. Meanwhile, due to the fact that the sowing plate is vertically arranged, the sowing device can accurately sow the materials to the lower portion of the sowing device, the positions of the materials are conveniently controlled, the materials are conveniently and uniformly sown, and the sowing effect is improved. Consequently, the device of scattering that this application provided can ensure that the material is effectual to be scattered, and can improve among the prior art because the mode of scattering causes to scatter inhomogeneous phenomenon.
Optionally, the disc body has an axis of rotation that makes an angle with the horizontal of less than 90 °.
Optionally, the distance of the pick from the center of the disc body is greater than or equal to one-half of the radius of the disc body.
Optionally, in the diameter direction of the disc main body, the width of the pick is 10% -50% of the radius of the disc main body.
Optionally, the number of the poking sheets is multiple, and the plurality of poking sheets are arranged around the center of the disc main body at intervals.
Optionally, the sowing plate further comprises a connecting table, the connecting table and the shifting sheet are arranged at intervals, and an annular cavity between the shifting sheet and the connecting table forms the feeding area.
Optionally, the two said pick pieces that are wired through the center of said disc body are centrosymmetric with the center of said disc body.
Optionally, the paddle is integrally formed with the tray body.
Optionally, a distance between a side of the pick away from the center of the disc main body and the center of the disc main body is equal to a radius of the disc main body.
Optionally, the poking sheet is obliquely arranged relative to a straight line on the disc main body, the straight line passing through the diameter of the poking sheet.
An unmanned aerial vehicle comprises a sowing device. The sowing device comprises a sowing plate which is vertically arranged;
the sowing plate comprises a plate main body and a shifting piece; the poking sheet is arranged on the disc main body, and the poking sheet and the center of the disc main body are arranged at intervals so as to form a feeding area for receiving materials between the poking sheet and the center of the disc main body.
The unmanned aerial vehicle provided by the invention adopts the sowing device, and compared with the prior art, the beneficial effects of the unmanned aerial vehicle are the same as those of the sowing device provided by the invention, and the details are not repeated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a sowing device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a first viewing angle of a seeding tray provided in an embodiment of the present application;
FIG. 3 is a schematic view of a first perspective of a seeding tray according to other embodiments of the present disclosure;
fig. 4 is a schematic structural diagram of a second viewing angle of the seeding tray provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of a third viewing angle of a seeding tray provided in the embodiment of the present application;
fig. 6 is a schematic diagram of a third view of a seeding tray according to still other embodiments of the present application.
Icon: 10-a sowing device; 100-a sowing tray; 101-a feed zone; 110-a disc body; 120-plectrum; 121-a first side edge; 122-a second side; 130-a connection station; 200-a load-bearing housing; 210-a feed inlet; 220-discharge hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The embodiment of the application provides an unmanned aerial vehicle, and this unmanned aerial vehicle can remove according to the route that the user set for, and wherein, unmanned aerial vehicle's removal mode can be land walking, flight, surface of water walking or aquatic walking etc.. In addition, this unmanned aerial vehicle can be used for carrying out the operation of scattering, in other words, this unmanned aerial vehicle can store appointed material, and unmanned aerial vehicle can also drive the material and remove according to the route of setting for scatter the material at this appointed position in the appointed position. Wherein the material can be solid material such as seeds, fertilizer, feed and the like or granular material and the like. Of course, in other embodiments of the present application, the drone may also be used to broadcast liquid or gel materials.
In the following embodiments of the present application, the following description will be given taking an example in which an unmanned aerial vehicle moves in a flying manner. The drone comprises a carrier and a sowing apparatus 10. In some embodiments, the carrier includes a fuselage, a horn, a battery, a storage container, a landing gear, a flight control assembly, and a rotor assembly. Wherein, horn, storing container, battery, flight control subassembly and undercarriage are all installed in the fuselage. The number of the horn is a plurality of, and the symmetric distribution is around the fuselage. Simultaneously, the one end and the fuselage rotatable coupling of every horn, the other end of every horn all extends to the direction of keeping away from the fuselage. The rotor assembly is mounted to the end of the horn remote from the fuselage, and the rotor assembly is located above the horn. Of course, the sowing device 10 is also installed on the body, and the sowing device 10 is connected to a storage container, the storage container can guide the stored materials to the sowing device 10, and the sowing device 10 can receive the materials in the storage container and can sow the materials to a designated position to complete the sowing operation. Of course, in order to make things convenient for the material to remove to scattering device 10 from storage container, unmanned aerial vehicle can also include conveyor, and this conveyor connects in storage container, and scattering device 10 connects in conveyor, and conveyor can accept the material that storage container derived and carry the material to scattering device 10, and scattering device 10 then accepts the material that conveyor carried in order to scatter the material.
In prior art, the device of scattering that is applied to unmanned aerial vehicle adopts the mode of throwing to scatter the material usually, makes the position of scattering of material difficult to control from this to lead to the material to scatter the inhomogeneous condition.
In order to improve the above problem, in other words, in order to improve the technical problem of uneven spreading caused by the spreading manner in the prior art, the spreading device 10 and the unmanned aerial vehicle using the spreading device 10 in the embodiment of the present application are provided.
Referring to fig. 1, the scattering device 10 includes a carrier housing 200 and a scattering disk 100. Wherein the carrier housing 200 is connected to the conveying device, the spreading tray 100 is rotatably disposed inside the carrier housing 200, and the spreading tray 100 is configured to apply a force to the material during the rotation, so that the material can be spread to a designated position by the spreading tray 100. Of course, in order to facilitate the spreading disc 100 to contact and spread the material to a specific position, the bearing housing 200 is provided with a feeding hole 210 and a discharging hole 220; the feed inlet 210 and the discharge outlet 220 are both communicated with the inner space of the bearing shell 200; the feed inlet 210 is used for feeding the material into the bearing shell 200 so as to facilitate the material to contact with the scattering disc 100; in the case where the scattering disk 100 is in contact with the material, the rotating scattering disk 100 may apply a force to the material, thereby causing the material to be discharged from the discharge hole 220 to complete the scattering of the material. It should be understood that, in order to facilitate the material to be scattered to the designated position, at least a part of discharge port 220 is located below scattering dish 100, thereby under the condition that unmanned aerial vehicle normally works, make discharge port 220 set up downwards, just can conveniently scatter the material to the designated position.
Referring to fig. 2 and 3, in order to improve the technical problem of uneven distribution caused by the distribution manner in the prior art, the distribution plate 100 is vertically disposed. Due to the fact that the scattering disc 100 is vertically arranged, the scattering disc 100 rotates on a vertical plane, materials can be scattered from the vertical plane, the scattering position of the materials can be conveniently controlled, and the amount of the materials scattered at the designated position can be conveniently controlled so that the materials can be uniformly scattered to the designated position.
It should be noted that, in the prior art, most of the unmanned aerial vehicle scattering devices 10 adopt a horizontally arranged scattering structure, and in the process of scattering materials by the scattering structure, the materials are horizontally thrown out, so that the materials are thrown out along a parabola under the condition of having a horizontal initial speed, and thus the materials are difficult to scatter at a position right below the unmanned aerial vehicle; in addition, in the case of the material moving along the parabola, when the weight and the shape of the material are different, the moving path of the material is difficult to predict, so that it is difficult to adjust the spreading position of the material, and the uniformity of the spreading of the material is difficult to control, thereby often resulting in the non-uniform spreading. Compare the mode that adopts the vertical setting of dish 100 of scattering in this application, the dish 100 of scattering of vertical setting is after applying the effort to the material, the material is broadcast along vertical in-plane, not only can ensure to scatter the material in the position under unmanned aerial vehicle, can also make a large amount of materials follow initial velocity direction orientation below after discharge gate 220 derives simultaneously, thereby conveniently control the position that the material was scattered, just can control the quantity that the material was scattered to the assigned position, accomplish the operation of scattering of material from this evenly.
In fig. 2, the dotted line C represents a horizontal plane, and the dotted line D represents a central axis of the disc main body 110, in other words, the dotted line D is perpendicular to the disc main body 110 and passes through the center of the disc main body 110. In addition, reference symbol C and reference symbol D in fig. 3 denote the same broken line, that is, denote: the C-dashed line representing the horizontal plane and the D-dashed line representing the central axis of the disc main body 110 are collinear.
It should be noted that in some embodiments of the present application, the vertical arrangement of the seeding tray 100 may be considered as the angle between the line of the central axis of rotation of the seeding tray 100 and the horizontal plane is less than 90 °. Wherein, the precondition of judging the included angle between the straight line of the rotation center axis of the sowing tray 100 and the horizontal plane is as follows: unmanned aerial vehicle is in the state of normal operation, and of course, unmanned aerial vehicle also can be in the state of normally placing on the level ground. An included angle between a straight line of a central rotation axis of the scattering disk 100 and a horizontal plane may also be regarded as an included angle between a D dashed line and a C dashed line, and a value of the included angle may be 0 °, 1 °, 2 °, 3 °, 4 °, 5 °, 8 °, 10 °, 12 °, 14 °, 15 °, 20 °, 21 °, 22 °, 25 °, 27 °, 30 °, 35 °, 36 °, 40 °, 45 °, 60 °, 75 °, or 80 °, or the like, that is, an included angle between a straight line of the central rotation axis of the scattering disk 100 and a horizontal plane may be a null angle or an acute angle, as shown in fig. 3 and fig. 2. In the case that the included angle between the horizontal plane and the straight line of the rotation center axis of the scattering disk 100 may be 0 °, as shown in fig. 3, the straight line of the rotation center axis of the scattering disk 100 is parallel to the horizontal plane, or may be regarded as the rotation plane of the scattering disk 100 being perpendicular to the horizontal plane.
It should be noted that, under the condition that the straight line of the rotation central axis of the scattering disk 100 forms an acute angle with the horizontal plane, it is of course also conceivable that the scattering disk 100 is disposed obliquely, and at this time, in the process of rotation of the scattering disk 100, a part of the material may have a downward initial velocity when being scattered from the discharge port 220, so that the material may be scattered at a position below the unmanned aerial vehicle, and at the same time, the controllability of the material scattering position may be improved, thereby improving the uniformity of scattering. Therefore, even in the case that the scattering disk 100 is inclined with respect to the vertical plane, it is possible to achieve the improvement of the technical problem of the non-uniformity of scattering due to the scattering manner in the related art.
In addition, because the spreading disc 100 is vertically arranged, after the materials enter the bearing shell 200 from the feeding hole 210, the materials can fall towards the discharging hole 220 under the action of the gravity of the materials, and then the materials are led out from the discharging hole 220 through the spreading effect of the spreading disc 100, so that the materials can be ensured to be effectively pulled out through the vertical arrangement of the spreading disc 100, and the spreading effect is improved.
Referring to fig. 4 and 5 in combination, in some embodiments of the present application, the seeding tray 100 includes a tray body 110 and a pick 120. The paddle 120 is disposed on the tray body 110, and the paddle 120 is spaced from the center of the tray body 110 to form a feeding area 101 for receiving the material between the paddle 120 and the center of the tray body 110. The disc main body 110 is vertically disposed inside the bearing housing 200, and the pick 120 is disposed on one side of the disc main body 110 in the axial direction of the disc main body 110.
In fig. 5, a broken line a indicates a circle center locus where the side of the paddle 120 close to the center of the tray main body 110 is located; the dashed line B represents a straight line where one of the diameters of the disc body 110 is located. In some embodiments of the application, the feed area 101 may be represented as the area defined between the dashed line a and the center of the disc body 110. It should be understood that in other embodiments of the present application, as shown in fig. 6, in order to ensure that the pick 120 can effectively spread the material, the width of the pick 120 along the diameter direction of the disc main body 110 needs to be generally long, and therefore, the feeding area 101 also covers a part of the pick 120, so that a part of the material can be directly beaten by the pick 120 in case of entering the feeding area 101, thereby directly beating the material out to complete the spreading. It should be noted that the covering of the portion of the pick 120 by the feeding area 101 can also be regarded as: a feeding area 101 for receiving the material is formed between the pick 120 and the center of the tray body 110.
Wherein the disc main body 110 is rotatably coupled to the bearing housing 200, and since the disc main body 110 is vertically disposed, the disc main body 110 can rotate in a vertical plane. During the rotation of the disc main body 110, the pick 120 may rotate along with the disc main body 110, and the pick 120 may flap the material to lead the material out of the discharge hole 220, thereby completing the spreading of the material.
It should be noted that the disk main body 110 is rotatably connected inside the bearing housing 200, and the disk main body 110 has at least one flat surface thereon, and the flat surface is perpendicular to the rotation axis of the disk main body 110, so that the flat surface is parallel to the rotation plane of the disk main body 110 during the rotation of the disk main body 110. The poking sheet 120 is arranged on the plane, so that the bouncing of the poking sheet 120 along the direction of the rotation axis of the disc main body 110 in the process of rotating along the disc main body 110 can be reduced, the rotation stability of the poking sheet 120 can be ensured, and the poking sheet 120 can be ensured to effectively complete the spreading of materials. It should be noted that, the plane on which the dial piece 120 is provided on the disc main body 110 is slightly convex or slightly concave from the center, so that the side on which the dial piece 120 is provided is spherical, in this case, the side on which the dial piece 120 is provided may be a plane; in other words, in other embodiments of the present application, in the case where the height of the side of the disc main body 110 on which the paddle 120 is disposed, which is raised from the center, or the depth of the side of the disc main body 110 which is recessed from the center is less than or equal to the height of the paddle 120 relative to the side, the side of the disc main body 110 on which the paddle 120 is disposed may also be regarded as a plane.
Alternatively, in some embodiments of the present application, the disc main body 110 may be provided in a disc shape, in other words, in a direction of a rotation axis of the disc main body 110, both opposite sides of the disc main body 110 are provided as planes, and the dial 120 is provided on one of the sides in an axial direction of the disc main body 110. The center of the disc main body 110 is the center of the disc main body 110, and the center of the disc main body 110 is rotatably connected to the bearing housing 200, so that the disc main body 110 stably rotates in the bearing housing 200, and at the same time, the pick 120 is stably rotated. It should be understood that in other embodiments of the present application, the two sides of the tray main body 110 along the axial direction thereof may be provided with the pick-up pieces 120, and the opposite sides of the carrying shell 200 are provided with the feed ports 210, so as to feed materials from the two sides of the tray main body 110, so that the materials can be spread by the pick-up pieces 120 on the two sides of the tray main body 110, thereby improving the spreading efficiency. Of course, other structures, such as a dynamic balance weight, may be disposed on the side of the disc main body 110 away from the pick 120; the mass of the disc main body 110 is uneven due to the loss of the plectrum 120, so that a dynamic balance block can be arranged on one side of the disc main body 110, which is far away from the plectrum 120, under the condition of axial runout during rotation, and the purpose of rotating balance of the disc main body 110 is achieved. In addition, in other embodiments of the present application, the disc main body 110 may be provided in other shapes, for example, a side of the disc main body 110 facing away from the pick 120 is raised from the center or recessed from the center, and the like.
Wherein, as the poking piece 120 and the center of the disc main body 110 are arranged at intervals to form the feeding area 101, when the material enters the interior of the bearing shell 200 from the feeding hole 210, the material enters from the position corresponding to the feeding area 101. Due to the spaced-apart center direction of the paddle 120 and the tray main body 110, the paddle 120 rotating following the tray main body 110 fails to contact the material when the material enters the feeding area 101, thereby failing to provide a force to the material. The material moves toward the discharge port 220 under the action of gravity, and when the material falls to the paddle 120, the paddle 120 flaps the material, so that the material is scattered from the discharge port 220. In other words, through setting up the central interval of plectrum 120 and dish main part 110 for the middle part of dish main part 110 forms the cavity that supplies the material to get into, can prevent to get into inside the hindrance that receives plectrum 120 of bearing housing 200 at the material, thereby makes the material can fall to discharge gate 220 under the action of gravity and in order to be beated by plectrum 120 and broadcast, ensures that the material is effectual to be dialled out, improves and broadcasts efficiency.
Alternatively, in order to ensure that the material has sufficient falling space in the feeding area 101 to ensure that the material can be dispersed, in some embodiments of the present application, the distance of the paddle 120 from the center of the tray body 110 is greater than or equal to one-half of the radius of the tray body 110, i.e., the radius of the circle formed by the dotted line a is greater than or equal to one-half of the radius of the tray body 110. In other words, the width of the feeding area 101 is greater than or equal to the radius of the disc body 110, so that the width of the feeding area 101 is large enough to facilitate the feeding of the material, and at the same time, the feeding area 101 can be ensured to have enough material entering, and under the condition that the feeding amount of the material is enough, the feeding rate of the material can be increased, thereby improving the spreading efficiency.
It should be understood that, by setting the distance between the dial 120 and the center of the disc main body 110 to be greater than or equal to the radius of the disc main body 110, the dial 120 can be also set closer to the discharge port 220, so that the material can be accurately guided out of the discharge port 220 by the beating of the dial 120 during the rotation of the disc main body 110, and the material is prevented from returning to the inside of the bearing housing 200 again after being beaten by the dial 120, thereby effectively spreading the material.
In addition, it should be noted that, when the distance between the pick 120 and the disc main body 110 is set to be larger than the radius of the disc main body 110, the pick 120 can be arranged on the outer layer of the side surface of the disc main body 110 as much as possible, and since the linear speed of rotation is larger at a position farther from the center of rotation under the same angular speed of rotation, the rotational speed of the pick 120 arranged on the outer layer of the side surface of the disc main body 110 can be made larger, so that sufficient force can be provided to the material under the condition of beating the material, so that the material can be scattered as much as possible, and the uniformity of scattering can be improved. On the other hand, when the material falls from the feeding area 101, the material accumulation caused by the slow rotation speed of the pick 120 can be avoided, so that the material is effectively scattered from the discharge port 220, and the scattering operation is effectively ensured.
It should be understood that in other embodiments of the present application, in the case that the overall area of the disc main body 110 is increased, the position of the pick 120 may also be adjusted accordingly, for example, in the case that the area of the disc main body 110 is too large, the distance between the pick 120 and the center of the disc main body 110 may be shortened to 30% -50% of the radius of the disc main body 110, so that in the case that the material contacts the pick 120, the speed of the pick 120 is not too fast to damage the material, thereby ensuring the integrity of the material while ensuring the stable operation of the spreading.
Optionally, in some embodiments of the present application, the width of the pick 120 is 10% -50% of the radius of the disc body 110 in the direction of the diameter of the disc body 110. It should be noted that, in some embodiments of the present application, the pick 120 is substantially sheet-shaped, and on this basis, the above "width of the pick 120" is expressed as: for example, when the plane of the dial 120 coincides with a straight line on the disc main body 110 passing through the diameter of the dial 120, the actual extension width of the dial 120 on the disc main body 110 is the width of the dial 120; for another example, when the plane of the dial 120 forms an angle with the straight line passing through the diameter of the dial 120 on the disc main body 110, the projection length of the dial 120 on the radius passing through the dial 120 is taken as the width of the dial 120. Of course, in fig. 5, the width of the pick 120 may be regarded as the distance between the broken line a and the outer periphery of the disc main body 110.
The width of the poking sheet 120 is set to be 10% -50% of the radius of the disc main body 110, so that on one hand, the distance between the poking sheet 120 and the center of the disc main body 110 can be ensured, and therefore, enough space can be ensured in the material feeding process, and the feeding efficiency is improved; on the other hand, the shifting piece 120 itself has enough width to facilitate the material spreading, so as to ensure the material can be spread uniformly. Optionally, in the embodiment of the present application, the width of the pick 120 may be 10%, 12%, 15%, 20%, 25%, 30%, 35%, 36%, 40%, 45%, 48%, 50%, or the like of the radius of the disc main body 110.
In some embodiments of the present application, the arrangement of the partial paddle 120 may be as shown in fig. 5, i.e., the partial paddle 120 may be obliquely arranged with respect to a line on the tray body 110 that passes through a diameter of the paddle 120. In other words, a straight line passing through the diameter of the pick 120 forms an included angle with the pick 120. Through this mode of setting up, can be so that partial plectrum 120 is patting the material with the condition of output material, the plectrum 120 of multiple slope mode can be followed multiple direction output material to can increase material output direction, thereby enlarge the scope of scattering.
Note that, the diameter of the disk main body 110 passing through the dial piece 120 indicates: taking one end of the plectrum 120 as a base point, wherein the diameter of the base point coinciding with the straight line of the connecting line of the disc main body 110 is the diameter passing through the plectrum 120 on the disc main body 110; or, one side of the dial piece 120 away from the center of the disc main body 110 is taken as a reference point, and the diameter of the line where the reference point is coincident with the line connecting the center of the disc main body 110 is the diameter of the disc main body 110 passing through the dial piece 120; or, taking the center of the dial 120 as a reference point, the diameter of the line where the reference point is coincident with the line connecting the centers of the disc main body 110 is the diameter passing through the dial 120 on the disc main body 110; further alternatively, a diameter of a straight line passing through the center of the disc main body 110 and tangent to one end of the dial 120 coincides with a diameter of the disc main body 110 passing through the dial 120.
It should be noted that, in order to increase the spreading range of the material, the plurality of the shifting pieces 120 may be inclined at different angles, in other words, the angle at which a part of the shifting pieces 120 is inclined with respect to the diameter passing through the shifting pieces 120 may be greater than the angle at which another part of the shifting pieces 120 is inclined with respect to the diameter passing through the shifting pieces 120, so that in the case of beating the material by the shifting pieces 120 with various inclination angles, the material may have various spreading directions, and the spreading range may be increased.
It should be understood that in other embodiments of the present application, a portion of the paddle 120 may also coincide with a diameter of the main body 110 that passes through the paddle 120, in other words, a plane in which the portion of the paddle 120 is located may also pass through the center of the main body 110. Alternatively, the paddle 120 may be aligned with a diameter of the disk main body 110 passing through the paddle 120, in other words, the tilt of the paddle 120 may be eliminated.
Optionally, in some embodiments of the present application, a side of the pick 120 away from the center of the disc body 110 is spaced from the center of the disc body 110 by a distance equal to a radius of the disc body 110. In other words, the pick 120 has a first side 121 and a second side 122 which are oppositely disposed, the first side 121 is a side of the pick 120 close to the center of the tray main body 110, and the second side 122 is a side of the pick 120 away from the center of the tray main body 110. In some embodiments of the present disclosure, the distance between the first side edge 121 and the center of the disc main body 110 is greater than or equal to one half of the radius of the disc main body 110, so as to ensure that the feeding region 101 has enough space for feeding. In addition, the side of the dial 120 away from the center of the disc main body 110 is located at a distance from the center of the disc main body 110 equal to the radius of the disc main body 110, meaning that the second side 122 is located at a distance from the center of the disc main body 110 substantially equal to the radius of the disc main body 110; in other words, in some embodiments of the present application, the second side 122 of the paddle 120 is substantially flush with the outer circumferential surface of the disc body 110; the second side 122 of the pick 120 may be regarded as a circle formed by the center of the disc main body 110 and a circle formed by the disc main body 110 as concentric circles having the same radius.
By making the distance between the side of the dial 120 away from the center of the disc main body 110 and the center of the disc main body 110 equal to the radius of the disc main body 110, it is possible to fully utilize the limited area on the disc main body 110 to ensure that the dial 120 has a sufficient width while ensuring that the feeding area 101 has a sufficient space to meet the feeding requirement, thereby improving the spreading capability of the dial 120. It should be noted that, by the above-mentioned manner, the feeding efficiency can be improved, and the scattering efficiency can also be improved, in other words, the feeding capacity can be improved, and the scattering capacity can be improved, so that the material is prevented from being accumulated due to poor material dispersion effect caused by the fact that the feeding amount is greater than the scattering amount, and the material is prevented from being wasted; it is also possible to prevent idling caused by the amount of feed being smaller than the amount of scattering and thus a decrease in the scattering effect. Therefore, the distance between the side of the pick 120 away from the center of the tray main body 110 and the center of the tray main body 110 is equal to the radius of the tray main body 110, so that the scattering operation can be performed orderly and stably, and the material can be scattered uniformly, thereby improving the scattering effect.
It should be understood that in other embodiments of the present application, the setting position of the pick 120 may be different, for example, in the case that the width of the pick 120 is 30% of the radius of the disc main body 110, at this time, a certain interval may be formed between the second side edge 122 of the pick 120 and the outer circumference of the disc main body 110.
In some embodiments of the present application, in order to continuously perform the spreading of the materials to improve the spreading efficiency, the number of the pick 120 is plural, and the plurality of the pick 120 is arranged around the center of the tray main body 110 at intervals. Through the setting of a plurality of plectrums 120, at the pivoted in-process of dish main part 110, a plurality of plectrums 120 rotate with dish main part 110 just can be continuously patted the material that falls to discharge gate 220 to continuously carry out the scattering of material, improve the scattering efficiency of material.
It should be noted that, in some embodiments of the present application, the distances of the plurality of paddles 120 with respect to the center of the disc main body 110 are the same, and the widths of the plurality of paddles 120 in the radial direction of the disc main body 110 are all the same; therefore, the controllability of material scattering can be improved under the condition of material scattering, and the uniform scattering of the materials can be further ensured.
It should be understood that in other embodiments of the present application, the plurality of paddles 120 may be arranged differently. For example, the width of a portion of the dials 120 in the plurality of dials 120 may be shorter than the width of another portion, in other words, the width of a portion of the number of dials 120 may be set to 30% of the radius of the disc main body 110, and the width of another portion of the dials 120 may be set to 50% of the radius of the disc main body 110; for another example, the plurality of paddles 120 may be different distances from the center of the disc body 110, e.g., a portion of the number of paddles 120 may be one-half the radius of the disc body 110 from the center of the disc body 110, while another portion of the paddles 120 may be 60% of the radius of the disc body 110. Of course, it should be noted that, in order to ensure the uniform quality of the entire scattering disk 100 and thus improve the stability of the rotation of the disk main body 110, when the arrangement modes of the plurality of the poking pieces 120 are different, two different types of the poking pieces 120 may be arranged in a staggered manner to ensure the uniform distribution of the quality of the scattering disk 100; of course, when the number of the setting patterns of the pick 120 is larger than two, the plurality of pick 120 may be alternately set.
Optionally, in some embodiments of the present application, the sowing tray 100 further comprises a connecting table 130, the connecting table 130 is disposed at a central position of the tray main body 110, and the connecting table 130 is disposed at the same side of the tray main body 110 as the pick 120. The connection stage 130 is rotatably connected with the bearing housing 200 to achieve the rotatable connection of the disc main body 110 with the bearing housing 200. It should be noted that, the height of the connecting platform 130 relative to the disc main body 110 is slightly larger than the height of the pick 120 relative to the disc main body 110, so that when the connecting platform 130 is rotatably connected with the bearing housing 200, a certain gap is formed between the pick 120 and the disc main body 110, and therefore, the wear caused by the mutual friction between the pick 120 and the bearing housing 200 can be prevented. Of course, it is also necessary to control the width of the gap between the pick 120 and the carrying case 200, in other words, in the case that the connecting table 130 is rotatably engaged with the carrying case 200, the gap between the pick 120 and the carrying case 200 is small, so as to prevent the material from falling out of the discharge hole 220 without the action of the pick 120, thereby improving the controllability of the material spreading.
In the case where the connection stage 130 is provided, the connection stage 130 is taken as the center of the disc main body 110, in other words, the distance between the above-mentioned proposed pick 120 and the center of the disc main body 110 can be regarded as the distance between the pick 120 and the a-broken line and the outer ring of the connection stage 130. The radius of the disk main body 110 may be regarded as a distance between the outer ring of the connection base 130 and the outer ring of the disk main body 110.
In the case where the connection stage 130 is provided, the central interval arrangement of the pick 120 and the tray main body 110 refers to: the pick 120 and the connecting table 130 are spaced apart, in other words, the feeding area 101 is formed in the area between the pick 120 and the connecting table 130. The cavity formed between the connecting table 130 and the pick 120 forms the feeding area 101, so that the material has enough space to move after being fed, and the material is convenient to scatter, so that the pick 120 can be convenient to scatter the material from various directions and positions under the condition of scattering the material, and the material is further uniformly scattered.
Optionally, in some embodiments of the present application, the connecting platform 130 is in a circular truncated cone shape, so that when the tray main body 110 is vertically disposed, the outer side surface of the connecting platform 130 is disposed obliquely to the rotation axis, and after the material enters the feeding area 101 from the feeding hole 210, a part of the material falls onto the connecting platform 130, the connecting platform 130 can provide a rebound force to the material, so that the material is spread as much as possible, and the material can conveniently fall from multiple positions to the discharging hole 220 to be flapped to multiple positions from multiple directions by the poking piece 120, thereby improving the uniformity of material scattering. It should be understood that in other embodiments of the present application, the connecting platform 130 may be provided in other shapes, such as a cone, a prism, a pyramid, a cylinder, a hemisphere, or the like.
In addition, it is worth noting that the annular cavity between the paddle 120 and the connecting table 130 forms the feeding area 101. That is, during rotation of the scattering disk 100, material is fed from the annular cavity formed between the connecting table 130 and the plurality of fingers 120. The material part entering the feeding area 101 directly falls to the discharge port 220 to be guided out of the discharge port 220 under the beating action of the poking piece 120; the other part falls on the connecting table 130, falls on the discharge port 220 after the rebound action of the connecting table 130, and is flapped by the poking piece 120 to lead out the discharge port 220.
Optionally, in some embodiments of the present application, the two paddles 120 that connect through the center of the disc body 110 are centered symmetrically about the center of the disc body 110. It should be noted that, it can also be regarded that the two shifting plates 120 located on the same diameter of the disc main body 110 are in central symmetry, so that the two shifting plates 120 are in the same state when rotated to the same position of the discharge hole 220, so that the two shifting plates 120 have substantially the same action on the material, and the uniformity of the material spreading can be ensured. In addition, due to the centrally symmetrically arranged shifting pieces 120, the overall quality of the sowing tray 100 can be uniform, and the stability of the sowing tray 100 in the rotating process can be ensured.
On the basis, in some embodiments of the present application, the plurality of pulling pieces 120 are disposed on the tray main body 110 at equal intervals, so that the plurality of pulling pieces 120 can continuously and uniformly provide a spreading force to the material during the rotation of the tray main body 110, and the material can be uniformly spread.
It should be appreciated that in other embodiments of the present application, the plurality of paddles 120 on the tray body 110 may be arranged in other ways. For example, the distance between some of the paddles 120 is smaller and the distance between another portion of the paddles 120 is larger. For example, the odd-numbered paddles 120 are arranged in a centrosymmetric manner.
It should be noted that, when the number of the poking pieces 120 is determined, it is necessary to ensure that there is a sufficient distance between any two adjacent poking pieces 120, so that the distance between two adjacent poking pieces 120 is large enough to facilitate smooth passage of the material, and it is also necessary to ensure that the distance between two adjacent poking pieces 120 is not too large, so as to prevent the material from entering from the feeding area 101 until falling out from the discharging hole 220 and not contacting the poking pieces 120.
In some embodiments of the present application, the paddle 120 is integrally formed with the tray body 110. The pick 120 and the tray body 110 are directly molded by injection molding or cutting, so that the stability of the connection between the pick 120 and the tray body 110 can be improved, and the service life of the scattering tray 100 can be prolonged. Of course, the connecting platform 130 and the disc main body 110 are directly formed in an integral manner.
It should be understood that in other embodiments of the present application, the connection between the pick 120 and the disc body 110 may be made by other methods, such as welding, bonding, clamping, or screwing. Similarly, the connection between the connection platform 130 and the disc main body 110 may be performed by other methods, such as welding, bonding, clipping, or screwing.
In summary, in the sowing device 10 and the unmanned aerial vehicle provided in the embodiment of the present application, since the sowing tray 100 is vertically arranged, when the material is conveyed to the sowing tray 100, the material enters the feeding area 101, and then the material falls down under the action of its own gravity; during rotation of the scattering disk 100, the material may be beaten by the paddle 120 to scatter the material to a designated location. Wherein, because the vertical setting of dish main part 110 can make things convenient for the material to fall to plectrum 120 department along the direction of gravity to dial out the material effectively. Meanwhile, since the scattering disk 100 is vertically disposed, the scattering device 10 can precisely scatter the materials to the lower side of the scattering device 10, thereby conveniently controlling the position of scattering the materials, conveniently and uniformly scattering the materials, and improving the scattering effect. Therefore, the spreading device 10 provided by the application can ensure effective spreading of materials and can improve the phenomenon of uneven spreading caused by the spreading mode in the prior art.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (11)

1. A sowing apparatus is characterized in that the sowing apparatus comprises a sowing tray which is vertically arranged;
the sowing plate comprises a plate main body and a shifting piece; the poking sheet is arranged on the disc main body, and the poking sheet and the center of the disc main body are arranged at intervals so as to form a feeding area for receiving materials between the poking sheet and the center of the disc main body.
2. A sowing apparatus according to claim 1, wherein the rotational axis of the disc body is at an angle of less than 90 ° to the horizontal.
3. The scattering device of claim 1, wherein the distance of the paddle from the center of the disk body is greater than or equal to one-half of the radius of the disk body.
4. A spreading device according to claim 3 wherein said fingers have a width in the range of 10% to 50% of the radius of the disc body in the direction of the diameter of said disc body.
5. The scattering device of claim 1, wherein said plurality of said fingers is a plurality of said fingers being spaced about a center of said disc body.
6. A scattering device as claimed in claim 5, wherein the scattering disk further comprises a connection table, the connection table and the pick being spaced apart, and an annular cavity between the pick and the connection table forming the feeding area.
7. A sowing apparatus according to claim 5, wherein the two said pick pieces which are wired through the centre of the disc body are centrosymmetric about the centre of the disc body.
8. A dispensing device as claimed in any of claims 1 to 7, wherein the paddle is integrally formed with the tray body.
9. A sowing apparatus according to any one of claims 1-7, wherein a side of the pick facing away from the centre of the disc body is at a distance from the centre of the disc body equal to the radius of the disc body.
10. A dispensing device as claimed in any one of claims 1 to 7, wherein the fingers are inclined relative to a line on the disc body passing through the diameter of the fingers.
11. An unmanned aerial vehicle comprising a dissemination device as defined in any one of claims 1 to 10.
CN202111523220.9A 2021-12-13 2021-12-13 Scatter device and unmanned aerial vehicle Pending CN114030617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111523220.9A CN114030617A (en) 2021-12-13 2021-12-13 Scatter device and unmanned aerial vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111523220.9A CN114030617A (en) 2021-12-13 2021-12-13 Scatter device and unmanned aerial vehicle

Publications (1)

Publication Number Publication Date
CN114030617A true CN114030617A (en) 2022-02-11

Family

ID=80140449

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111523220.9A Pending CN114030617A (en) 2021-12-13 2021-12-13 Scatter device and unmanned aerial vehicle

Country Status (1)

Country Link
CN (1) CN114030617A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2569953C1 (en) * 2014-06-16 2015-12-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Волгоградский государственный аграрный университет (ФГБОУ ВПО Волгоградский ГАУ) Planting unit for single-seed planting seeds of grain crops
US20160114341A1 (en) * 2014-10-28 2016-04-28 Richard George HAZELTON Deflector for a broadcast spreader
CN105746062A (en) * 2016-03-18 2016-07-13 广州天翔航空科技有限公司 Fertilizer scattering and sowing device of unmanned aerial vehicle
CN205883942U (en) * 2016-04-14 2017-01-18 河南农有王农业装备科技股份有限公司 Maize seed triangle -shaped disseminator that misplaces
CN107097958A (en) * 2017-04-20 2017-08-29 浙江大学 The UAS and method of a kind of variable fertilization
CN206743848U (en) * 2017-05-04 2017-12-15 安阳全丰生物科技有限公司 A kind of solid particle tossed device suitable for unmanned plane
RU2744735C1 (en) * 2020-09-28 2021-03-15 Федеральное государственное бюджетное научное учреждение "Федеральный научный агроинженерный центр ВИМ" (ФГБНУ ФНАЦ ВИМ) Working body for centrifugal spreader of fertilizers and ameliorants
CN213502914U (en) * 2020-09-25 2021-06-22 深圳市大疆创新科技有限公司 Agricultural plant protection unmanned aerial vehicle
CN216468500U (en) * 2021-12-13 2022-05-10 广州极飞科技股份有限公司 Scatter device and unmanned aerial vehicle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2569953C1 (en) * 2014-06-16 2015-12-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Волгоградский государственный аграрный университет (ФГБОУ ВПО Волгоградский ГАУ) Planting unit for single-seed planting seeds of grain crops
US20160114341A1 (en) * 2014-10-28 2016-04-28 Richard George HAZELTON Deflector for a broadcast spreader
CN105746062A (en) * 2016-03-18 2016-07-13 广州天翔航空科技有限公司 Fertilizer scattering and sowing device of unmanned aerial vehicle
CN205883942U (en) * 2016-04-14 2017-01-18 河南农有王农业装备科技股份有限公司 Maize seed triangle -shaped disseminator that misplaces
CN107097958A (en) * 2017-04-20 2017-08-29 浙江大学 The UAS and method of a kind of variable fertilization
CN206743848U (en) * 2017-05-04 2017-12-15 安阳全丰生物科技有限公司 A kind of solid particle tossed device suitable for unmanned plane
CN213502914U (en) * 2020-09-25 2021-06-22 深圳市大疆创新科技有限公司 Agricultural plant protection unmanned aerial vehicle
RU2744735C1 (en) * 2020-09-28 2021-03-15 Федеральное государственное бюджетное научное учреждение "Федеральный научный агроинженерный центр ВИМ" (ФГБНУ ФНАЦ ВИМ) Working body for centrifugal spreader of fertilizers and ameliorants
CN216468500U (en) * 2021-12-13 2022-05-10 广州极飞科技股份有限公司 Scatter device and unmanned aerial vehicle

Similar Documents

Publication Publication Date Title
US3926377A (en) Apparatus for spreading granulated and pulverized material
CN216468500U (en) Scatter device and unmanned aerial vehicle
DK154634B (en) APPARATUS FOR FILLING PARTICULAR MATERIAL IN A SPACE, EX. A SILO
CN214339613U (en) Scatter device and unmanned aerial vehicle
US3048132A (en) Seed pellet dispenser and planter
US6866075B2 (en) Method and apparatus for uniform particle loading of vessels
CN213502914U (en) Agricultural plant protection unmanned aerial vehicle
US5296202A (en) Apparatus for uniformly loading particulate material into cylindrical beds
CN111642193A (en) Pneumatic centralized-discharging electric-driving type seed metering device, system and method for grains
JP5000532B2 (en) Apparatus for dispensing at least one particulate material into a container, filling apparatus, and filling method using such apparatus
CN114030617A (en) Scatter device and unmanned aerial vehicle
CN216468498U (en) Scatter device and unmanned aerial vehicle
RU2475012C1 (en) Device for planting seeds in capsules
CN216468511U (en) Spill material device, scatter mechanism and unmanned aerial vehicle
CN216468512U (en) Sowing mechanism and unmanned aerial vehicle
KR101523415B1 (en) Scatter for sand and fertilizer
EP2826919B1 (en) A spreading device
CN113998114A (en) Scattering disc, scattering system and unmanned mobile device
CN113998115A (en) Scatter device and unmanned aerial vehicle
WO2022061771A1 (en) Agricultural plant protection unmanned aerial vehicle, sowing control method and storage medium
CN117426189B (en) Centrifugal disc sowing uniformity improvement method and device
CN114229003A (en) Spill material device, scatter mechanism and unmanned aerial vehicle
CN210556889U (en) Grading device is prevented in granary blanking
CN113978727A (en) Sowing mechanism and unmanned aerial vehicle
CN216468502U (en) Sowing mechanism and unmanned aerial vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination