Drones

Abstract

The application provides a kind of unmanned plane, it relates to unmanned equipment technical field.The unmanned plane includes fuselage, arm, power component and broadcast system, broadcast system includes auger, auger includes: shaft, mounting and helical blade. Wherein, mounting is set to one end of shaft, and mounting is provided with inductor. Helical blade is helically arranged on shaft, and the tail end of helical blade is provided with opening. Helical blade includes first blade segment at tail end and second blade segment adjacent to and connected with first blade segment, and the end of first blade segment away from second blade segment is provided with end wall, and opening is formed between end wall and second blade segment. Shaft is configured to, when inductor is inducted by induction device of broadcast system after unmanned plane receives stop feeding instruction, shaft stops rotating around its axis, and makes opening and end wall upward. In this way, material at the tail end of helical blade can be effectively prevented from falling under the action of its own gravity and causing material leakage.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned equipment, and in particular to a drone. Background Art

[0002] Unmanned equipment, such as drones, autonomous vehicles, and autonomous boats, is increasingly being used in agriculture, industry, and other related fields. The spreading systems installed on these unmanned equipment can be used to spread pesticides, seeds, powders, and other materials to complete specific spreading operations.

[0003] In the related art, after the spreading system stops spreading, material may leak out of the spreading system. Therefore, the material leakage problem of the spreading system has become a technical problem that needs to be solved urgently in this field. Summary of the Invention

[0004] The object of the present invention is to provide a drone that can effectively improve the problem of material leakage in a spreading system.

[0005] The embodiment of the present invention is achieved as follows:

[0006] In a first aspect, an embodiment of the present invention provides a drone comprising a fuselage, an arm, a power assembly, and a spreading system, wherein the arm is connected to the fuselage, the power assembly is fixed to the arm, and provides lift for the drone's flight; the spreading system comprises an auger;

[0007] The auger comprises:

[0008] shaft;

[0009] A mounting member, the mounting member being disposed at one end of the shaft, the mounting member being provided with a sensing member; and

[0010] A spiral blade, the spiral blade is spirally wound around the shaft, and an opening is provided at the tail end of the spiral blade;

[0011] The spiral blade includes a first blade segment located at the tail end and a second blade segment adjacent to and connected to the first blade segment, an end of the first blade segment away from the second blade segment is provided with an end wall, and the opening is formed between the end wall and the second blade segment;

[0012] The shaft is configured so that, after the drone receives a stop feeding instruction and the sensing element is sensed by the sensing device of the spreading system, the shaft stops rotating around its own axis and makes the opening and the end wall face upward.

[0013] Furthermore, in an optional embodiment, the shaft is configured so that, after the drone receives a stop feeding instruction, when the sensing element is sensed by the sensing device of the spreading system for the first time, the shaft stops rotating around its own axis and makes the opening and the end wall face upward.

[0014] Furthermore, in an optional embodiment, the shaft is configured so that, after the drone receives a stop feeding instruction, when the sensing element is sensed by the sensing device of the spreading system for the first time, the shaft stops rotating around its own axis and makes the end wall and the sensing element in the same horizontal plane.

[0015] Furthermore, in an optional embodiment, the shaft is configured so that, after the drone receives a stop feeding instruction, when the sensing element is sensed by the sensing device of the spreading system for the first time, the shaft stops rotating around its own axis and makes the end wall and the sensing element in the same horizontal plane passing through the axis of the shaft.

[0016] Furthermore, in an optional embodiment, a strip-shaped mounting portion is protruded from one side surface of the mounting member, and a mounting hole is provided along the length of the mounting portion, and the sensing member is installed in the mounting hole;

[0017] The shaft is configured so that, after the drone receives a stop feeding instruction, when the sensing element is sensed by the sensing device of the spreading system for the first time, the shaft stops rotating around its own axis and makes the end wall, the mounting portion and the sensing element in the same horizontal plane.

[0018] Furthermore, in an optional embodiment, a groove is provided on the outer contour of the spiral blade.

[0019] In a second aspect, the present invention provides an unmanned aerial vehicle (UAV) comprising a fuselage, an arm, a power assembly, a spreading system, and a controller, wherein the arm is connected to the fuselage, the power assembly is fixed to the arm, and provides lift for the flight of the UAV; the spreading system comprises an auger, an outer shell, a sensing device, a motor, and a spreading device;

[0020] A feeding cavity is provided in the outer shell;

[0021] The auger comprises: a shaft, a mounting member, and a spiral blade; the mounting member is arranged at one end of the shaft, and a sensing member is provided on the mounting member; one end of the shaft provided with the mounting member is transmission-connected to the motor, and the other end extends out of the feeding chamber and is connected to the sowing device; the spiral blade is spirally wound around the shaft, and an opening is provided at the tail end of the spiral blade;

[0022] The spiral blade comprises a first blade segment at the tail end and a second blade segment adjacent to and connected with the first blade segment, an end wall is arranged at one end of the first blade segment away from the second blade segment, and the opening is formed between the end wall and the second blade segment;

[0023] The induction device is arranged on the outer shell, and the induction device and the motor are electrically connected with the controller; the induction device is configured to, after the controller receives a stop feeding instruction, send an induction signal to the controller when the induction device senses the induction piece, so that the controller controls the motor to stop according to the induction signal, so that the shaft rod stops rotating around its own axis and the opening and the end wall face upward.

[0024] Further, in an optional embodiment, the induction device is configured to, after the controller receives a stop feeding instruction, send an induction signal to the controller when the induction device senses the induction piece for the first time, so that the controller controls the motor to stop according to the induction signal, so that the shaft rod stops rotating around its own axis and the opening and the end wall face upward.

[0025] Further, in an optional embodiment, the cavity wall of the feeding cavity comprises first and second side walls arranged opposite to each other;

[0026] The end of the shaft rod away from the motor extends out of the first side wall and is connected with the spreading device;

[0027] The spiral blade is provided with a groove on the outer contour, and the groove and the outer shell form a channel for the material to pass through, and the groove and the first side wall are located in the same plane.

[0028] Further, in an optional embodiment, the cavity wall of the feeding cavity comprises first and second side walls arranged opposite to each other, and the outer shell is provided with a mounting plate;

[0029] One side of the mounting plate and the second side wall jointly form a mounting cavity, the mounting cavity is in communication with the feeding cavity, and the mounting cavity is used for accommodating the mounting piece;

[0030] The induction device is arranged on the other side of the mounting plate.

[0031] The beneficial effects of the drone provided by the embodiment of the present invention include: after the drone receives a stop feeding command, when the sensing element is sensed by the sensing device of the spreading system, the shaft stops rotating about its own axis, and the opening and end wall are turned upward. This ensures that when the auger is stopped, the opening and end wall at the tail end of the spiral blade are in an upward position. When the auger stops conveying, due to the spiral shape of the spiral blade, its tail end can carry material, which can effectively prevent the material at the tail end of the spiral blade from falling under its own gravity and causing leakage. Therefore, the drone provided by the embodiment of the present invention can effectively prevent the auger of the spreading system from leaking material. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic structural diagram of an unmanned device used in an auger according to an embodiment of the present invention;

[0034] Figure 2 for Figure 1 A schematic diagram of a portion of the structure of the unmanned equipment, showing the structure of the storage container;

[0035] Figure 3 A schematic structural diagram of a spreading system of unmanned equipment used in an auger according to an embodiment of the present invention, wherein the storage container is not shown;

[0036] Figure 4 for Figure 3 A schematic structural diagram of the bottom structure of the spreading system from a first perspective, wherein the outer sleeve corresponding to one auger is not shown;

[0037] Figure 5 for Figure 3 A schematic structural diagram of a bottom structure of the spreading system from a second perspective;

[0038] Figure 6 for Figure 3 A schematic structural diagram of the outer shell of the spreading system;

[0039] Figure 7 for Figure 3 Schematic diagram of the connection structure between the auger, the outer sleeve and the spreading device;

[0040] Figure 8 A schematic structural diagram of an auger according to an embodiment of the present invention; wherein the sensing element is in a state of being sensed by the sensing device;

[0041] Figure 9 A schematic block diagram of the connection structure of a controller of an unmanned device used in an auger according to an embodiment of the present invention;

[0042] Figure 10 A schematic structural diagram of an auger from an axial perspective provided by an embodiment of the present invention;

[0043] Figure 11 A schematic structural diagram of the auger from another perspective provided by an embodiment of the present invention.

[0044] icon:

[0045] 1-unmanned equipment; 2-fuselage; 3-arm; 4-landing gear; 5-power assembly; 10-spreading system; 20-controller;

[0046] 100 - auger; 110 - shaft; 120 - mounting member; 121 - mounting portion; 122 - mounting hole; 130 - spiral blade; 131 - opening; 132 - first blade segment; 133 - second blade segment; 134 - end wall; 135 - groove; 140 - induction member;

[0047] 200 - outer shell; 210 - feed port; 220 - feed chamber; 230 - partition shell; 231 - accommodating chamber; 241 - first side wall; 242 - second side wall; 250 - mounting plate; 251 - mounting chamber; 260 - transmission chamber; 270 - plug-in chamber;

[0048] 300-induction device; 400-motor; 500-spreading device; 600-storage container; 700-transmission assembly; 800-outer sleeve. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0051] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0052] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0054] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] In related art, the spreading system on unmanned equipment can leak material after stopping its spreading operation. The designers of the present invention discovered that this technical problem arises because the spreading system uses an auger to convey material. When the auger stops rotating, material easily falls out of the tail opening of the auger, causing leakage. Therefore, the present invention provides an auger that can alleviate the leakage problem in spreading systems, as well as a spreading system and unmanned equipment that utilizes the auger.

[0056] See also Figure 1An embodiment of the present invention provides an auger for use in a spreading system 10 of an unmanned device 1 to transport materials. The auger can effectively alleviate material leakage. The unmanned device 1 can be used to spray pesticides, water, or other liquids, or solid materials. The unmanned device 1 can be an unmanned vehicle, drone, or unmanned ship, and can be used in agriculture, industry, and other scenarios. In the field of plant protection, various operating equipment can be installed on the unmanned device 1 to perform operations such as spraying pesticides, seeds, and powders.

[0057] Among them, the unmanned vehicle can travel on land and can be used in the farming industry for plant protection operations such as spraying pesticides or watering crops; it can also be used in forest fires for operations such as spraying fire extinguishing fluids; or it can also spray solid materials to the target area.

[0058] The drone can be used in agricultural plant protection operations, spraying crops, and can spray liquids such as pesticides and water; it can also be used in operations such as spraying fire extinguishing liquids in forest fires; or it can also spray solid materials to the target area.

[0059] The unmanned boat can be used for water spraying operations, and can spray liquids such as pesticides and water; or it can spray solid materials to the target area.

[0060] In this embodiment, the unmanned equipment 1 is a drone and is used for spraying solid materials as an example for specific description.

[0061] The unmanned aerial vehicle 1 comprises a fuselage 2, arms 3, landing gear 4, a power assembly 5, and a spreading system 10. The arms 3 are located on both sides of the fuselage 2 and are connected to the fuselage 2. The landing gear 4 is fixed to the bottom of the fuselage 2 to ensure the stability of the unmanned aerial vehicle 1 during takeoff and landing. The power assembly 5 is fixed to the end of the arms 3 away from the fuselage 2 and provides lift for the flight of the unmanned aerial vehicle 1. The spreading system 10 is installed on the fuselage 2 and is used to store and spread materials.

[0062] See also Figure 2-Figure 5 The spreading system 10 may include an auger 100 , an outer shell 200 , a sensing device 300 , a motor 400 , a spreading device 500 , a storage container 600 , a transmission assembly 700 , and an outer sleeve 800 .

[0063] Please continue reading Figure 2 The storage container 600 is provided on the body 2 and connected to the outer shell 200 for storing materials. A discharge port (not shown) is provided at the bottom of the storage container 600 for discharging materials into the outer shell 200.

[0064] Please continue reading Figure 3The top of the outer shell 200 is provided with a feeding port 210 corresponding to the discharge port of the storage container 600, for example, the feeding port 210 can be in communication with the discharge port, or can be located below the discharge port. A feeding cavity 220 is arranged in the outer shell 200, and the feeding port 210 is in communication with the feeding cavity 220. In the embodiment, the feeding cavity 220 can be selected to be two, and the two feeding cavities 220 are in communication with the feeding port 210. A partition shell 230 can be arranged in the outer shell 200 to separate the internal cavity of the outer shell 200 to form two feeding cavities 220.

[0065] Please continue to refer to Figure 4 The side of the partition shell 230 away from the feeding cavity 220 is recessed to form a containing cavity 231 for containing and mounting the motor 400.

[0066] Please refer to Figure 3 and Figure 6 The cavity wall of the feeding cavity 220 includes oppositely arranged first and second side walls 241 and 242, and the outer shell 200 is provided with a mounting plate 250. One side of the mounting plate 250 cooperates with the second side wall 242 to form a mounting cavity 251, and the mounting cavity 251 is in communication with the feeding cavity 220, so that when the auger 100 is contained in the feeding cavity 220, the auger 100 is partially contained in the mounting cavity 251.

[0067] Please continue to refer to Figure 5 One end of the outer shell 200 is provided with a transmission cavity 260 in communication with the containing cavity 231 and the feeding cavity 220, and the transmission cavity 260 is used for containing and mounting a transmission assembly 700. Since the transmission cavity 260 is in communication with the containing cavity 231 and the feeding cavity 220, the transmission assembly 700 can be drivingly connected with the motor 400, and the auger 100 can be drivingly connected with the transmission assembly 700, so as to realize power transmission, and the motor 400 can drive the auger 100 to rotate around its axis through the transmission assembly 700. Optionally, the transmission assembly 700 can adopt a gear transmission structure.

[0068] Please continue to refer to Figure 6 The other end of the outer shell 200 is provided with a plug-in cavity 270 in communication with the feeding cavity 220, and the plug-in cavity 270 is used for the auger 100 to extend into the feeding cavity 220 through the plug-in cavity 270.

[0069] Please refer to Figure 4 and Figure 7 The auger 100 is arranged in the outer sleeve 800, and the outer sleeve 800 is connected with the spreading device 500. The auger 100 is used for spirally conveying the material in the outer sleeve 800 to the spreading device 500, so that the spreading device 500 can spread the material. After the outer sleeve 800 and the auger 100 pass through the plug-in cavity 270 and extend into the feeding cavity 220, the auger 100 can cooperate with the transmission assembly 700.

[0070] Please continue reading Figure 4 The sensing device 300 is disposed on the outer shell 200 and is used to sense the stop position of the auger 100. In this embodiment, the sensing device 300 is disposed on the side of the mounting plate 250 away from the mounting cavity 251. This facilitates sensing the stop position of the auger 100 and improves detection accuracy. Optionally, the sensing device 300 may be a Hall effect sensor.

[0071] See also Figure 8 The auger 100 includes a shaft 110, a mounting member 120 and a spiral blade 130. The mounting member 120 is arranged at one end of the shaft 110, and a sensing member 140 is provided on the mounting member 120. Optionally, the sensing member 140 is a magnet and can be sensed by a Hall sensor. One end of the shaft 110 provided with the mounting member 120 is transmission-connected to the motor 400, and the other end extends out of the feeding chamber 220 and is connected to the sowing device 500. The spiral blade 130 is spirally wound around the shaft 110, and the tail end of the spiral blade 130 is provided with an opening 131. The "tail end" mentioned in this embodiment refers to the output end of the auger 100 when conveying materials.

[0072] The shaft 110 is configured so that, after the unmanned device 1 receives a stop-feeding command and the sensing element 140 is first sensed by the sensing device 300 of the spreading system 10, the shaft 110 stops rotating about its axis and faces upward. The stop-feeding command is a command to stop the motor 400, thereby stopping the auger 100 and thus stopping material conveyance. The stop-feeding command can be issued by the user via an operating device.

[0073] In this way, it is ensured that when the auger 100 is stopped, the opening 131 at the tail end of the spiral blade 130 is in an upward position. When the auger 100 stops conveying, the material accumulates between the tail end of the spiral blade 130 and the outer sleeve 800. Since the spiral blade 130 is spiral, the spiral blade 130 and the inner wall of the outer sleeve 800 can support the material, which can effectively prevent the material at the tail end of the spiral blade 130 from falling under its own gravity and causing leakage.

[0074] See also Figure 9The unmanned equipment 1 further includes a controller 20, which is electrically connected to the spreading system 10 and is used to control the spreading system 10 to perform or stop the spreading operation. Furthermore, in this embodiment, the sensing device 300 and the motor 400 are both electrically connected to the controller 20. The sensing device 300 is configured to send a sensing signal to the controller 20 when it first senses the sensing element 140 after receiving a stop-feeding instruction. The controller 20 controls the motor 400 to stop based on the sensing signal, thereby causing the shaft 110 to stop rotating about its own axis and the opening 131 to face upward.

[0075] It should be noted that, since the sensing member 140 is provided on the mounting member 120, the sensing member 140 can be sensed once by the sensing device 300 for each rotation of the shaft 110 driven by the motor 400. When the stop feeding instruction is not received, the sensing device 300 does not send a sensing signal even if it senses the sensing member 140. Therefore, the controller 20 does not control the motor 400 to stop to ensure that the material is conveyed normally. After the controller 20 receives the stop feeding instruction, in order to ensure that the auger 100 is in a stopped state, the controller 20 does not immediately control the motor 400 to stop, but continues to control the motor 400 to run until the sensing device 300 senses the sensing member 140 for the first time after the controller 20 receives the stop feeding instruction, and then sends a sensing signal to the controller 20, and the controller 20 controls the motor 400 to stop according to the sensing signal. In this way, when the motor 400 stops, the shaft 110 stops rotating around its own axis, and the sensing member 140 is in a position sensed by the sensing device 300. When the auger 100 is stopped, the opening 131 remains upward, thereby preventing the material at the tail end of the spiral blade 130 from falling under its own gravity and causing leakage.

[0076] Alternatively, in this embodiment, since two augers 100 are provided, a sensor 140 may be provided on each augers 100. Thus, two sensing devices 300 may be provided, one for each sensing device 140, thereby ensuring that when both augers 100 are in the stopped position, the openings 131 at the tail ends of both augers 100 face upward. Alternatively, in other embodiments, only one sensing device 300 and sensing device 140 may be provided, detecting only the stopped position of one augers 100. This sensing device 300 can then generate a sensing signal to enable the controller 20 to synchronize control of the two augers 100. To ensure that both openings 131 face upward when the augers 100 are stopped, the augers 100 need only be installed with the initial installation position accurate, i.e., when the auger 100 with the sensing device 140 is in the position sensed by the sensing device 300, the opening 131 of the auger 100 faces upward. The other auger 100 can then be installed with the opening 131 facing upward.

[0077] Please continue reading Figure 8 In this embodiment, the spiral blade 130 may include a first blade segment 132 located at the tail end and a second blade segment 133 adjacent to and connected to the first blade segment 132. An end wall 134 is provided at one end of the first blade segment 132 away from the second blade segment 133, and an opening 131 is formed between the end wall 134 and the second blade segment 133.

[0078] It should be noted that the end wall 134 is the rearmost end of the spiral blade 130, through which material is discharged. The first blade segment 132 is formed by the spiral blade 130 spirally winding 360° around the shaft 110, starting from the end wall 134. The second blade segment 133 is formed by the spiral blade 130 spirally winding 360° around the shaft 110, starting from the connection point with the first blade segment 132. In other words, the aforementioned opening 131 is formed between the upper end wall 134 at the rear end of the spiral blade 130 and the corresponding portion of the second blade segment 133. This ensures that the rear end of the auger 100 faces upward, and the opening 131 remains upward, preventing material leakage.

[0079] See also Figure 8 and Figure 10 Furthermore, shaft 110 is configured so that, after unmanned device 1 receives a stop-feeding command and sensing element 140 is first sensed by sensing device 300 of spreading system 10, shaft 110 stops rotating about its axis, and end wall 134 and sensing element 140 are aligned in the same horizontal plane, with end wall 134 facing upward. In other words, when shaft 110 is stopped, end wall 134 and sensing element 140 can be considered aligned in the same horizontal plane, with end wall 134 facing upward, thereby ensuring that the tail end of spiral blade 130 faces upward, preventing material leakage.

[0080] It should be noted that the position of the sensing member 140 on the mounting member 120 is not specifically limited. As long as the shaft 110 stops rotating about its own axis and the opening 131 faces upward when the sensing member 140 is sensed by the sensing device 300, it is sufficient. In this embodiment, the sensing member 140 can be horizontally positioned relative to the mounting member 120 when the sensing member 140 is sensed by the sensing device 300. In other embodiments, the sensing member 140 can also be in a vertical or inclined position, for example.

[0081] Furthermore, when the shaft 110 stops rotating about its own axis, the end wall 134 and the sensing element 140 can be located in the same horizontal plane passing through the axis of the shaft 110. In other words, the horizontal plane where the end wall 134 and the sensing element 140 are located passes through the axis of the shaft 110, which can be considered as the tail end of the spiral blade 130 being wound half a turn to the horizontal plane, thereby improving the material-carrying effect of the spiral blade 130.

[0082] In this embodiment, the mounting member 120 is generally disc-shaped. After the auger 100 is installed in the feeding chamber 220, the mounting member 120 is housed within the mounting chamber 251. A long, rectangular mounting portion 121 is protruded from one side of the mounting member 120. Mounting portion 121 is provided with a mounting hole 122 along its length, and the sensing member 140 is mounted within the mounting hole 122. The shaft 110 is configured such that, after the unmanned device 1 receives a stop-feeding command and the sensing member 140 is first sensed by the sensing device 300 of the spreading system 10, the shaft 110 stops rotating about its axis, aligning the end wall 134, the mounting portion 121, and the sensing member 140 with the same horizontal plane.

[0083] It should be noted that when the shaft 110 is stopped, the mounting portion 121 is horizontally disposed, and the mounting hole 122 is also horizontally disposed along the extension direction of the mounting portion 121. This facilitates sensing of the sensing element 140 by the sensing device 300, improving the accuracy of position detection. Furthermore, the end wall 134, the mounting portion 121, and the sensing element 140 are located in the same horizontal plane, further ensuring that the end wall 134 faces upward, thereby ensuring that the tail end of the spiral blade 130 faces upward, thereby preventing material leakage.

[0084] See also Figure 3 and Figure 11 In addition, in order to prevent the material from accumulating on the side wall of the outer shell 200 during transportation, in this embodiment, a groove 135 is provided on the outer contour of the spiral blade 130.

[0085] It should be noted that since the gap between the spiral blade 130 and the outer shell 200 is small when passing through the outer shell 200 to ensure the conveying effect, when there is a material with a large particle size, this large particle size material may be blocked in the cavity wall of the feeding cavity 220 corresponding to the position of the spiral blade 130 during the conveying process, causing material accumulation. Therefore, by providing a groove 135 on the spiral blade 130, even large particle size materials can pass through the groove 135 when the spiral blade 130 rotates, and thus be conveyed toward the tail end of the spiral blade 130.

[0086] Furthermore, after the auger 100 is installed in the feed chamber 220, a passage for material to pass through is formed between the groove 135 and the outer shell 200, and the groove 135 is coplanar with the first side wall 241. Thus, when the material is conveyed to the first side wall 241, it is less likely to accumulate on the first side wall 241 and can continue to be conveyed to the tail end of the spiral blade 130 through the groove 135. This can prevent problems such as the motor 400 being burned due to material accumulation on the first side wall 241, and the spiral blade 130 being damaged by cutting the accumulated material.

[0087] In summary, the auger 100, the spreading system 10 and the unmanned equipment 1 provided by the embodiment of the present application can ensure that the opening 131 at the tail end of the spiral blade 130 is in an upward state when the auger 100 is in a stop state, because the shaft 110 stops rotating around the axis thereof and the opening 131 is upward when the sensing member 140 is sensed by the sensing device 300 of the spreading system 10 for the first time after the unmanned equipment 1 receives a stop feeding instruction. In the state that the auger 100 stops conveying, the tail end of the spiral blade 130 can carry the material because the spiral blade 130 is in a spiral shape, so that the material at the tail end of the spiral blade 130 can be effectively prevented from falling down under the action of gravity to cause material leakage. Therefore, the auger 100, the spreading system 10 and the unmanned equipment 1 provided by the embodiment of the present application can effectively prevent the auger 100 of the spreading system 10 from leaking material. In addition, the material can be prevented from accumulating on the first side wall 241 by arranging the groove 135, so that the motor 400 is prevented from being burned out or the spiral blade 130 is prevented from being damaged due to the accumulation of the material.

[0088] The preferred embodiments of the present application have been described above with the preferred embodiments, but the present application is not limited to the above examples, and various modifications and changes can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A drone, characterized in that: The drone comprises a body (2), an arm (3), a power assembly (5), and a spreading system (10), wherein the arm (3) is connected to the body (2), and the power assembly (5) is fixed to the arm (3) to provide lift for the flight of the drone; the spreading system (10) comprises an auger (100); The auger (100) comprises: Axle (110); a mounting member (120), the mounting member (120) being disposed at one end of the shaft (110), and a sensing member (140) being disposed on the mounting member (120); and A spiral blade (130), the spiral blade (130) being spirally wound around the shaft (110), and an opening (131) being provided at the tail end of the spiral blade (130); The spiral blade (130) includes a first blade segment (132) located at the tail end and a second blade segment (133) adjacent to and connected to the first blade segment (132); an end of the first blade segment (132) away from the second blade segment (133) is provided with an end wall (134); and the opening (131) is formed between the end wall (134) and the second blade segment (133); The shaft (110) is configured such that, after the drone receives a stop feeding instruction and the sensing member (140) is sensed by the sensing device (300) of the spreading system (10), the shaft (110) stops rotating around its own axis and makes the opening (131) and the end wall (134) face upward.

2. The drone according to claim 1, characterized in that The shaft (110) is configured such that, after the drone receives a stop feeding instruction, when the sensing member (140) is sensed by the sensing device (300) of the spreading system (10) for the first time, the shaft (110) stops rotating around its own axis and makes the opening (131) and the end wall (134) face upward.

3. The drone according to claim 1, wherein: The shaft (110) is configured such that, after the drone receives a stop feeding instruction, when the sensing member (140) is sensed by the sensing device (300) of the spreading system (10) for the first time, the shaft (110) stops rotating around its own axis and causes the end wall (134) and the sensing member (140) to be in the same horizontal plane.

4. The drone according to claim 3, characterized in that The shaft (110) is configured such that, after the drone receives a stop feeding instruction, when the sensing element (140) is sensed by the sensing device (300) of the spreading system (10) for the first time, the shaft (110) stops rotating around its own axis and causes the end wall (134) and the sensing element (140) to be in the same horizontal plane passing through the axis of the shaft (110).

5. The drone according to claim 3, characterized in that: A long strip-shaped mounting portion (121) is protruded from one side surface of the mounting member (120), and a mounting hole (122) is provided along the length direction of the mounting portion (121), and the sensing member (140) is mounted in the mounting hole (122); The shaft (110) is configured such that, after the drone receives a stop feeding instruction, when the sensing member (140) is sensed by the sensing device (300) of the spreading system (10) for the first time, the shaft (110) stops rotating around its own axis and causes the end wall (134), the mounting portion (121) and the sensing member (140) to be in the same horizontal plane.

6. The drone according to claim 1, wherein: A groove (135) is provided on the outer contour of the spiral blade (130).

7. A drone, characterized in that: The drone comprises a body (2), an arm (3), a power assembly (5), a spreading system (10), and a controller (20); the arm (3) is connected to the body (2); the power assembly (5) is fixed to the arm (3), and provides lift for the flight of the drone; the spreading system (10) comprises an auger (100), an outer shell (200), a sensing device (300), a motor (400), and a spreading device (500); A feeding cavity (220) is provided in the outer shell (200); The auger (100) comprises: a shaft (110), a mounting member (120), and a spiral blade (130); the mounting member (120) is arranged at one end of the shaft (110), and a sensing member (140) is provided on the mounting member (120); one end of the shaft (110) provided with the mounting member (120) is transmission-connected to the motor (400), and the other end extends out of the feeding chamber (220) and is connected to the spreading device (500); the spiral blade (130) is spirally wound around the shaft (110), and an opening (131) is provided at the tail end of the spiral blade (130); The spiral blade (130) includes a first blade segment (132) located at the tail end and a second blade segment (133) adjacent to and connected to the first blade segment (132); an end of the first blade segment (132) away from the second blade segment (133) is provided with an end wall (134); and the opening (131) is formed between the end wall (134) and the second blade segment (133); The sensing device (300) is arranged on the outer shell (200), and the sensing device (300) and the motor (400) are both electrically connected to the controller (20); the sensing device (300) is configured to send a sensing signal to the controller (20) when the sensing member (140) is sensed after the controller (20) receives a stop feeding instruction, so that the controller (20) controls the motor (400) to stop according to the sensing signal, thereby causing the shaft (110) to stop rotating around its own axis and the opening (131) and the end wall (134) to face upward.

8. The drone according to claim 7, characterized in that: The sensing device (300) is configured to send a sensing signal to the controller (20) when the sensing member (140) is sensed for the first time after the controller (20) receives a stop feeding instruction, so that the controller (20) controls the motor (400) to stop according to the sensing signal, thereby causing the shaft (110) to stop rotating around its own axis and the opening (131) and the end wall (134) to face upward.

9. The drone according to claim 7, characterized in that: The cavity wall of the feeding cavity (220) comprises a first side wall (241) and a second side wall (242) arranged opposite to each other; One end of the shaft (110) away from the motor (400) extends out of the first side wall (241) and is connected to the spreading device (500); A groove (135) is provided on the outer contour of the spiral blade (130), and a channel for material to pass through is formed between the groove (135) and the outer shell (200), and the groove (135) and the first side wall (241) are located in the same plane.

10. The drone according to claim 7, characterized in that: The cavity wall of the feeding cavity (220) comprises a first side wall (241) and a second side wall (242) arranged opposite to each other, and the outer shell (200) is provided with a mounting plate (250); One side of the mounting plate (250) and the second side wall (242) together form a mounting cavity (251), and the mounting cavity (251) is in communication with the feeding cavity (220) and is used to accommodate the mounting member (120); The sensing device (300) is arranged on the other side of the mounting plate (250).

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