Spreading device and drone

Abstract

Embodiments of the present invention provide a spreading device and an unmanned aerial vehicle, and relate to the field of spreading settings. The spreading device includes a shell, a material guide assembly, a drive assembly, and a spreading assembly. The shell includes a first mounting portion and a second mounting portion, the first mounting portion is recessed with a receiving cavity, the shell is provided with a material inlet connected to the receiving cavity, and the second mounting portion is recessed with a mounting cavity. The material guide assembly is rotatably mounted in the receiving cavity, and the material guide assembly is used to convey the material flowing in from the material inlet. The drive assembly is mounted in the mounting cavity, and the drive assembly is transmission-connected with the material guide assembly, and the drive assembly is used to drive the material guide assembly to rotate; the spreading assembly is arranged on the first mounting portion, and the spreading assembly is used to spread the material conveyed by the material guide assembly. In this embodiment, the material guide assembly, the drive assembly, and the spreading assembly are all integrated in the shell, which improves the integration of the spreading device, makes the structure of the spreading device more compact, and reduces the space occupied.

Description

Technical Field

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

[0002] Agricultural drones are developing rapidly, and their payload is also increasing, so they can be applied to more and more fields. Aerial plant protection pesticide spraying technology is relatively mature, but field management of field crops is not limited to spraying liquid pesticides, but also includes the spreading of particles such as seeds, powders, and solid fertilizers.

[0003] In the existing technology, in order to realize the UAV sowing of seeds, powders, solid fertilizers and other particles, a sowing component is installed on the UAV. However, due to the poor fluidity of seeds, powders and solid fertilizers, the sowing component needs to be used together with other components to improve the sowing effect.

[0004] However, the structural design of the existing spreading device is unreasonable, so that the spreading device occupies a large space, which in turn causes unstable flight of the UAV. Summary of the invention

[0005] The purpose of the present invention includes, for example, providing a spreading device and a drone, which can improve the problem of unreasonable design and large space occupied by existing spreading devices.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, the present invention provides an embodiment to provide a spreading device, comprising:

[0008] A housing, the housing comprising a first mounting portion and a second mounting portion connected to each other, the first mounting portion being recessed with a receiving cavity, the housing being provided with a feeding port communicating with the receiving cavity, and the second mounting portion being recessed with a mounting cavity;

[0009] a material guide assembly, the material guide assembly is rotatably mounted in the accommodating cavity, the material guide assembly is used to convey the material flowing in from the material inlet; a driving assembly, the driving assembly is mounted in the mounting cavity, the driving assembly is transmission-connected with the material guide assembly, the driving assembly is used to drive the material guide assembly to rotate; and,

[0010] A spreading assembly, wherein the spreading assembly is arranged on the first mounting portion, and the spreading assembly is used for spreading the material conveyed by the material guiding assembly.

[0011] In an optional implementation, the first mounting portion is recessed with two accommodating cavities, and the shell is provided with two feeding ports, and the two feeding ports are respectively connected to the two accommodating cavities;

[0012] The number of the material guiding components includes two, the two material guiding components are rotatably installed in the two accommodating chambers respectively, and the driving component is transmission-connected with the two material guiding components respectively.

[0013] In an optional implementation, the two accommodating cavities are recessed in parallel in the first mounting portion.

[0014] In an optional implementation, the driving assembly includes a driving motor and a transmission assembly, both of which are installed in the accommodating cavity, the output shaft of the driving motor is drivingly connected to the transmission assembly, and the transmission assembly is drivingly connected to the material guiding assembly.

[0015] In an optional implementation, the first mounting portion and the second mounting portion are arranged opposite to each other, and the accommodating cavity is recessed on a side of the first mounting portion away from the second mounting portion; the mounting cavity is recessed on a side of the second mounting portion away from the first mounting portion.

[0016] In an optional implementation, the mounting cavity includes a first chamber and a second chamber that are interconnected, the first chamber is recessed on a side of the second mounting portion away from the first mounting portion, the first chamber includes a mounting wall arranged parallel to the first mounting portion, the second chamber is recessed in the mounting wall, the drive motor is installed in the second chamber, and the transmission assembly is installed in the first chamber.

[0017] In an optional implementation, the first mounting portion is recessed with two of the accommodating cavities, and the second chamber is disposed between the two accommodating cavities.

[0018] In an optional implementation, the second chamber is at least partially located above the two accommodating cavities.

[0019] In an optional implementation, a mounting hole is provided on the mounting wall, the accommodating cavity is connected to the first chamber through the mounting hole, the material guide assembly is rotatably mounted on the mounting hole, and the material guide assembly partially extends out of the mounting hole and is transmission-connected to the transmission assembly.

[0020] In an optional implementation, the material guiding assembly includes an auger and a connecting shaft mounted on the end of the auger, the connecting shaft is rotatably mounted on the mounting hole, and the connecting shaft partially extends out of the mounting hole and is transmission-connected to the transmission assembly.

[0021] In an optional implementation, the first mounting portion and the second mounting portion are located on two adjacent sides of the shell.

[0022] In an optional implementation, the housing further includes a third mounting portion, the third mounting portion is arranged opposite to the first mounting portion, and the first mounting portion and the third mounting portion are both connected to the second mounting portion;

[0023] The accommodating cavity is arranged on a side of the first mounting portion away from the third mounting portion;

[0024] The mounting cavity includes a third cavity and a fourth cavity which are connected to each other. The third cavity is recessed in the second mounting portion, and the fourth cavity is recessed on a side of the third mounting portion away from the second mounting portion. The drive motor is disposed in the third cavity, and the transmission assembly is disposed in the fourth cavity.

[0025] In an optional implementation, two accommodating cavities are recessed on the first mounting portion, and the third chamber is disposed between the two accommodating cavities.

[0026] In an optional implementation, the second mounting portion is located at one side of the bottom of the shell, and the third chamber is at least partially located at the bottom of the two accommodating cavities.

[0027] In an optional implementation, the fourth chamber includes a blocking wall parallel to the first mounting portion, the blocking wall is provided with a first extension hole connected to the accommodating chamber and a second extension hole connected to the third chamber, the material guide assembly is rotatably mounted on the first extension hole, and the material guide assembly partially extends out of the first extension hole and is transmission-connected to the transmission assembly, and the output shaft of the drive motor partially extends out of the second extension hole and is connected to the transmission assembly.

[0028] In an optional implementation, the material guiding assembly includes an auger and a connecting shaft installed at the end of the auger, the connecting shaft is rotatably installed in the first extension hole, and the connecting shaft partially extends out of the first extension hole and is transmission-connected to the transmission assembly.

[0029] In an optional implementation, the transmission assembly includes a gear, the gear is mounted on the connecting shaft, and the gear is transmission-connected to the output shaft of the drive motor.

[0030] In a second aspect, the present invention provides a drone comprising the spreading device described in the aforementioned embodiment.

[0031] The beneficial effects of a spreading device and a drone provided by an embodiment of the present invention include:

[0032] The embodiment of the present application forms a accommodating cavity on the first mounting portion of the shell and a mounting cavity on the second mounting wall, so that the material guide assembly is rotatably mounted in the accommodating cavity and the drive assembly is mounted in the mounting cavity, and the drive assembly is transmission-connected with the material guide assembly, and the spreading assembly is disposed on the first mounting portion, and the spreading assembly is used for spreading the material conveyed by the material guide assembly, thereby integrating the material guide assembly, the drive assembly and the spreading assembly into the shell, improving the integration of the spreading device, making the structure of the spreading device more compact and reducing the space occupied. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A schematic diagram of the structure of a drone provided by an embodiment of the present invention;

[0035] Figure 2 A schematic diagram of the storage box structure of a spreading device provided in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of the structure of a spreading device provided in an embodiment of the present invention;

[0037] Figure 4 An exploded schematic diagram of the structure of a spreading device provided in an embodiment of the present invention;

[0038] Figure 5 A schematic diagram of an exploded structure of a spreading device provided by an embodiment of the present invention from another perspective;

[0039] Figure 6 A schematic diagram of the shell structure of a spreading device provided in an embodiment of the present invention;

[0040] Figure 7 A schematic structural diagram of a shell of a spreading device provided by an embodiment of the present invention from another perspective;

[0041] Figure 8 A schematic structural diagram of a material guide assembly of a spreading device provided in an embodiment of the present invention;

[0042] Fig. 9 A schematic structural diagram of a flow guide member of a spreading device provided in an embodiment of the present invention;

[0043] Fig.10 A schematic diagram of the structure of a spreading assembly of a spreading device provided in an embodiment of the present invention;

[0044] Fig.11 A schematic structural diagram of a spreading assembly of a spreading device provided by an embodiment of the present invention from another perspective;

[0045] Fig.12 A schematic diagram of the structure of a spreading device provided in Example 2 of the present invention;

[0046] Fig.13A schematic structural diagram of a spreading device provided in Embodiment 2 of the present invention from another perspective;

[0047] Fig.14 A schematic diagram of the shell structure of the spreading device provided in Example 2 of the present invention;

[0048] Fig.15 This is a schematic structural diagram from another perspective of the shell of the spreading device provided in Example 2 of the present invention.

[0049] Icons: 110-housing; 111-first mounting part; 113-second mounting part; 115-accommodating chamber; 117-feeding port; 119-installation chamber; 121-first chamber; 123-second chamber; 125-installation hole; 127-installation seat; 129-through hole; 130-material guide assembly; 131-auger; 133-connecting shaft; 135-outer sleeve; 137-connecting hole; 139-installation member; 150-drive assembly; 151-drive motor; 153-transmission assembly; 155-gear; 157-reduction assembly; 170-end cover; 190-flow guide; 191-discharge port; 193-first end; 195-second end; 300-spreading device; 310-storage box; 311-feeding port; 3 13-opening; 315-tripod; 330-spreading assembly; 331-connecting piece; 333-spreading disc; 335-driving motor; 337-hinge; 339-connecting part; 341-mounting part; 343-first section; 345-second section; 347-connecting ear; 349-mounting slot; 351-through hole; 353-protective cover; 355-feeding port; 357-disc body; 359-spreading disc; 361-fixing part; 363-hole; 365-spreading port; 367-third section; 369-fourth section; 371-third mounting part; 373-third chamber; 375-fourth chamber; 377-blocking wall; 379-first extension hole; 381-second extension hole; 500-UAV; 510-fuselage. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0053] The terms “first”, “second”, etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0054] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0055] Example 1

[0056] Please refer to Figure 1 The present embodiment provides a drone 500, the drone 500 includes a sowing device 300, and the drone 500 can achieve sowing operations on a field through the sowing device 300. For example, the drone 500 can achieve sowing seeds through the sowing device 300. For another example, the drone 500 can achieve sowing solid fertilizers through the sowing device 300. For another example, the drone 500 can achieve sowing powder preparations through the sowing device 300. For another example, the drone 500 can achieve simultaneous sowing of seeds and solid fertilizers through the sowing device 300.

[0057] In this embodiment, the spreading device 300 is installed at the bottom of the fuselage 510 of the UAV 500, and the spreading device 300 is driven by the flight of the fuselage 510 to achieve spreading.

[0058] In this embodiment, the drone 500 is a quad-rotor drone 500. Rotors are provided at the four corners of the fuselage 510, and the rotation of the rotors drives the movement of the fuselage 510 and the spreading device 300 to achieve the spreading effect.

[0059] In some other embodiments of the present application, the drone 500 may also be a single-rotor, dual-rotor, or multi-rotor plant protection drone 500. It is understood that this embodiment does not limit the plant protection drone 500 to a quad-rotor plant protection drone 500.

[0060] Please refer to Figure 2-Figure 7In this embodiment, the sowing device 300 includes a housing 110, a material guide assembly 130, a driving assembly 150 and a sowing assembly 330. The housing 110 includes a first mounting portion 111 and a second mounting portion 113. The first mounting portion 111 is recessed with a receiving chamber 115. The housing 110 is provided with an inlet 117 communicating with the receiving chamber 115. The second mounting portion 113 is recessed with a mounting chamber 119. The material guide assembly 130 is rotatably mounted in the receiving chamber 115, and the material guide assembly 130 is used to convey the material flowing in from the inlet 117. The driving assembly 150 is mounted in the mounting chamber 119, and the driving assembly 150 is transmission-connected with the material guide assembly 130, and the driving assembly 150 is used to drive the material guide assembly 130 to rotate. The sowing assembly is arranged on the first mounting portion 111, and the sowing assembly 330 is used to sow the material conveyed by the material guide assembly 130.

[0061] The embodiment of the present application provides a receiving cavity 115 on the first mounting portion 111 of the shell 110 and a mounting cavity 119 on the second mounting portion 113, so that the material guide assembly 130 is rotatably installed in the receiving cavity 115 and the drive assembly 150 is installed in the mounting cavity 119, and the drive assembly 150 is transmission-connected with the material guide assembly 130, and the sowing assembly 330 is arranged on the first mounting portion 111, and the sowing assembly 330 is used for sowing the material conveyed by the material guide assembly 130, thereby realizing that the material guide assembly 130, the drive assembly 150 and the sowing assembly 330 are all integrated in the shell 110, thereby improving the integration degree of the sowing device 300, making the structure of the sowing device 300 more compact and reducing the space occupied, thereby reducing the windward area of ​​the drone 500 and improving the flight stability of the drone 500.

[0062] Please refer to Figure 2 and Figure 3In this embodiment, the sowing device 300 also includes a storage box 310. The storage box 310 is installed at the bottom of the fuselage 510. The storage box 310 has a storage space (not shown). The storage box 310 is provided with a feeding port 311 connected to the storage space. Before sowing, the material to be sown, such as seeds or fertilizers, is first added to the storage space through the feeding port 311 for storage. The bottom of the storage box 310 is provided with an opening 313, and the shell 110 is detachably installed at the bottom of the storage box 310, and the feed port 117 is connected to the opening 313. When the material stored in the storage box 310 flows out of the storage box 310 through the opening 313 at the bottom of the storage box 310, and then flows into the accommodating chamber 115 through the material inlet 117, and is transmitted through the material guide assembly 130 installed in the accommodating chamber 115 to be discharged from the open opening of the accommodating chamber 115 to the sowing assembly 330, and finally the sowing effect is achieved by the sowing assembly 330. In this embodiment, a tripod 315 is provided on the storage box 310. There are two tripods 315, and the two tripods 315 are arranged on both sides of the storage box 310. The tripod 315 extends from the top of the storage box 310 to the lower part. The tripod 315 is used for the drone 500 to land to ensure that the drone 500 lands safely. At the same time, the tripod 315 extends from the top of the storage box 310 to the lower part to lower the center of gravity of the drone 500, so that the drone 500 can fly and land more smoothly. In this embodiment, the first mounting portion 111 and the second mounting portion 113 are arranged opposite to each other. The accommodating cavity 115 is recessed on the side of the first mounting portion 111 away from the second mounting portion 113. The mounting cavity 119 is recessed on the side of the second mounting portion 113 away from the first mounting portion 111. The first mounting portion 111 and the second mounting portion 113 are arranged opposite to each other, so that the opening directions of the mounting cavity 119 and the accommodating cavity 115 are opposite, so that the material guide assembly 130 and the driving assembly 150 can be disassembled and assembled from two directions, making assembly more convenient.

[0063] In this embodiment, the first mounting portion 111 and the second mounting portion 113 form two opposite side walls of the housing 110. In some other embodiments of the present application, the first mounting portion 111 and the second mounting portion 113 may also be independent parts that are assembled to form a whole.

[0064] In some other embodiments of the present application, the first mounting portion 111 and the second mounting portion 113 may also jointly form a side wall of the housing 110. The mounting cavity 119 and the accommodating cavity 115 are opened on the same side of the housing 110.

[0065] Please continue to refer to Figure 2-Figure 7In this embodiment, the side wall of the first mounting portion 111 is recessed with two accommodating chambers 115. The two accommodating chambers 115 are located at the same height. The top wall of the housing 110 is provided with two feed inlets 117, and the two feed inlets 117 are respectively connected to the two accommodating chambers 115. The bottom wall of the storage box 310 is provided with two openings 313, and the two openings 313 are respectively connected to the two feed inlets 117. The number of the material guide components 130 includes two, and the two material guide components 130 are rotatably mounted on the two accommodating chambers 115. The driving component 150 is respectively connected to the two material guide components 130 in a transmission manner. By providing two accommodating chambers 115 and arranging the material guide components 130 in both accommodating chambers 115, the efficiency of material guiding and sowing is made higher. By making the driving component 150 respectively connected to the two material guide components 130 in a transmission manner, the height of the sowing device 300 can be made lower while ensuring high efficiency.

[0066] In other embodiments of the present application, the number of the accommodating chamber 115 may also be one or more. It is understandable that the present embodiment does not limit the number of the accommodating chamber 115 , as long as the number of the accommodating chamber 115 corresponds to the number of the material guiding components 130 .

[0067] Please continue to refer to Figure 2-Figure 7 In this embodiment, two accommodating cavities 115 are parallelly recessed in the side wall of the first mounting portion 111. The two accommodating cavities 115 are arranged in parallel to save space and make the volume of the housing 110 smaller.

[0068] It should be noted that the parallel setting means that both the two accommodating cavities 115 extend from the first mounting portion 111 toward the second mounting portion 113. A small angle can also be considered as a parallel setting. The parallel setting does not limit the two accommodating cavities 115 to be absolutely parallel, and errors can be allowed.

[0069] In some other embodiments of the present application, the two accommodating chambers 115 may not be arranged in parallel. For example, the two accommodating chambers 115 are located in the same horizontal plane, and an angle is set between the two accommodating chambers 115. The angle may be 5°, 10° or other angles. It is understood that this embodiment does not limit the two accommodating chambers 115 to be arranged in parallel, but only allows the two accommodating chambers 115 to be arranged in parallel in order to better utilize the space.

[0070] Please continue to refer to Figure 2-Figure 7In this embodiment, the driving assembly 150 includes a driving motor 151 and a transmission assembly 153. The driving motor 151 and the transmission assembly 153 are both installed in the accommodating cavity 115. The output shaft of the driving motor 151 is in transmission connection with the transmission assembly 153, and the transmission assembly 153 is in transmission connection with the two material guide assemblies 130. By installing the driving motor 151 and the transmission assembly 153 in the installation cavity 119, the arrangement of the driving assembly 150 can be made more compact, thereby better saving space.

[0071] In this embodiment, the mounting cavity 119 includes a first cavity 121 and a second cavity 123. The first cavity 121 is recessed in the side wall of the second mounting portion 113. The first cavity 121 includes a mounting wall 122, and the second cavity 123 is recessed in the mounting wall 122. The mounting wall 122 is arranged parallel to the first mounting portion 111, the driving motor 151 is installed in the second cavity 123, and the transmission assembly 153 is installed in the first cavity 121. The second cavity 123 is recessed in the end surface of the first cavity 121, so that the first cavity 121 and the second cavity 123 are distributed in the width direction of the housing 110, so as not to increase the height of the material guide assembly 130.

[0072] Please continue to refer to Figure 2-Figure 7 In this embodiment, the second chamber 123 is disposed between the two accommodating chambers 115. That is, the two accommodating chambers 115 are distributed on both sides of the second chamber 123. The second chamber 123 and the two accommodating chambers 115 have overlapping parts in the width direction of the housing 110. The second chamber 123 is disposed between the two accommodating chambers 115 to facilitate the transmission connection between the transmission member and the two material guide components 130.

[0073] In other embodiments of the present application, the second chamber 123 may also be disposed on any side of the two accommodating chambers 115 , for example, on the left side or the right side of the two accommodating chambers 115 .

[0074] In this embodiment, the accommodating cavity 115 is circular. The second cavity 123 is circular. The second cavity 123 is partially located at the top of the two accommodating cavities 115. By partially arranging the second cavity 123 at the top of the two accommodating cavities 115, the position of the upper half can be well utilized, making the volume of the housing 110 smaller. Secondly, being arranged at the top can complement and avoid the bottom of the storage box 310, so that the height of the spreading device 300 will not be increased as a whole.

[0075] In other embodiments of the present application, the second chamber 123 may also be partially disposed at the lower portions of the two accommodating cavities 115 .

[0076] In this embodiment, two mounting holes 125 are provided on the mounting wall 122. The two mounting holes 125 connect the two accommodating chambers 115 with the first chamber 121 respectively, and the two material guide assemblies 130 are rotatably mounted on the mounting holes 125 respectively, and the material guide assemblies 130 partially extend out of the mounting holes 125 and are in transmission connection with the transmission assembly 153. The mounting holes 125 are provided on the end surfaces of the two accommodating chambers 115 to facilitate the material guide assemblies 130 to be lifted into the first chamber 121 and in transmission connection with the transmission assembly 153.

[0077] Please continue to refer to Figure 2-Figure 7 In this embodiment, the two material guide components 130 each include an auger 131 and a connecting shaft 133 installed at the end of the auger 131. The connecting shaft 133 is rotatably installed in the mounting hole 125. The connecting shaft 133 partially extends out of the mounting hole 125 and is in transmission connection with the transmission component 153. The material guide using the auger 131 can achieve the technical effect of controlling the amount of the guided material by controlling the rotation speed, which is more convenient to use. Secondly, the simple structure is more convenient for maintenance.

[0078] In this embodiment, both material guide components 130 include an outer sleeve 135 and a mounting member 139. The auger 131 is rotatably mounted in the outer sleeve 135 through the mounting member 139, and the connecting shaft 133 of the auger 131 extends out of the outer sleeve 135. A connecting hole 137 is provided on the outer sleeve 135, and the outer sleeve 135 is detachably mounted in the mounting cavity 119. The connecting hole 137 is connected to the feed inlet 117. The connecting shaft 133 extends out of the mounting hole 125 and is transmission-connected to the transmission component 153. Installing the auger 131 in the mounting cavity 119 through the outer sleeve 135 is convenient for directly pulling the auger 131 and the sowing device 300 out of the mounting cavity 119 for maintenance when the auger 131 is stuck or the sowing device 300 is maintained and serviced, thereby making the maintenance of the sowing device 300 more convenient.

[0079] See also Figure 8 In this embodiment, the outer sleeve 135 is generally formed into a circular tube with one end closed, and the communication hole 137 is provided on the side wall of the outer sleeve 135. A bearing hole (not shown) is provided at the closed end of the outer sleeve 135, and a bearing (not shown) is provided in the bearing hole. The connecting shaft 133 is installed in the bearing and extends out of the end of the outer sleeve 135.

[0080] Please refer to Figure 4 and Figure 5 In this embodiment, the transmission assembly 153 includes two gears 155. The two gears 155 are both installed in the first chamber 121 and are distributed on both sides of the second chamber 123. The two gears 155 are respectively installed on one side of the connecting shafts 133 of the two augers 131 extending out of the mounting hole 125. The gears 155 are drivingly connected to the output shaft of the driving motor 151.

[0081] In other embodiments of the present application, the transmission assembly 153 may also be a transmission member such as a belt or a chain.

[0082] Please refer to Figure 4 and Figure 5 In this embodiment, in order to allow the drive motor 151 to provide greater torque, the transmission assembly 153 also includes a reduction assembly 157, which is meshed with the output shaft of the drive motor 151 and the gear 155 respectively. In this embodiment, the reduction assembly 157 is a planetary gear 155 set. Since the planetary gear set can provide a higher transmission ratio and save more space. The planetary gear 155 set is installed in the second chamber 123. The sun gear of the planetary gear 155 set extends out of the second chamber 123 and is in transmission connection with the two gears 155.

[0083] Please refer to Figure 4 and Figure 5 In this embodiment, the spreading device 300 further includes an end cover 170. The end cover 170 is detachably mounted on the first chamber 121 by screws to close the first chamber 121. The end cover 170 is provided to provide a seal for the drive motor 151 and the transmission assembly 153, so that the drive motor 151 and the transmission assembly 153 can work better.

[0084] Please refer to Figure 3 , Figure 4 , Figure 5 and Fig. 9 In this embodiment, the spreading device 300 further includes two guide members 190, which are respectively mounted on the first mounting portion 111 of the housing 110. The two guide members are respectively connected to the two accommodating chambers 115. The guide member 190 is provided with a discharge port 191 connected to the accommodating chamber 115, and the material transmitted by the auger 131 flows out through the discharge port 191 of the guide member 190.

[0085] Please refer to Figure 3 In this embodiment, in order to facilitate the maintenance of the spreading device 300, the spreading assembly 330 is movably mounted on the housing 110. When the spreading assembly 330 moves to the first position relative to the housing 110, the spreading assembly 330 is connected to the discharge port 191 to spread the material flowing out of the discharge port 191. When the spreading device 300 moves to the second position relative to the housing 110, the spreading assembly 330 is away from the discharge port 191.

[0086] In this embodiment, the sowing assembly 330 of the sowing device 300 is movably mounted on the housing 110, so that the sowing assembly 330 has a first position and a second position that can be moved relative to the housing 110. When the sowing assembly 330 moves relative to the housing 110 to the first position, the sowing assembly 330 is connected to the discharge port 191, so that the sowing assembly 330 and the sowing device 300 cooperate to complete the sowing function. When the sowing device 300 moves relative to the housing 110 to the second position, the sowing assembly 330 is away from the discharge port 191, thereby achieving the avoidance of the sowing assembly 330 to the material guide assembly 130, so that when maintaining the material guide assembly 130, it is not necessary to completely remove the sowing assembly 330, making the maintenance of the sowing device 300 more convenient, thereby improving the maintenance efficiency of the sowing device 300.

[0087] It should be noted that the first position represents the position of the spreading assembly 330 of the spreading device 300 in a normal working state, at which the spreading assembly 330 is connected to the discharge port 191 of the guide member 190. The second position represents the position of the spreading assembly 330 in a non-working assembly state, and the second position can be any position above, below, on the left, on the right, or in front of the discharge port 191.

[0088] In this embodiment, the spreading assembly 330 is rotatably mounted on the housing 110. When the spreading device 300 is rotated to the first position, the spreading device 300 is connected to the discharge port 191. When the spreading device 300 is rotated to the second position, the spreading device 300 is away from the discharge port 191. The spreading device 300 is rotatably mounted on the housing 110 to facilitate the movement of the spreading assembly 330 between the first position and the second position. At the same time, the use of accessories can be reduced, and weight reduction can be achieved to facilitate better flight of the drone 500.

[0089] In some other embodiments of the present application, the sowing device 300 is movably mounted on the housing 110. For example, the sowing assembly 330 is mounted on the housing 110 via a slide rail, so that the sowing assembly 330 can be switched between the first position and the second position along the slide rail, so that when the sowing device 300 is maintained or the material guide assembly 130 fails, the sowing assembly 330 is moved from the first position to the second position to avoid the material guide assembly 130. For another example, the sowing assembly 330 can also be mounted on the housing 110 via a telescopic assembly, so that the sowing assembly 330 can be switched between the first position and the second position by extending and contracting the telescopic assembly, so that when the sowing device 300 is maintained or the material guide assembly 130 fails, the sowing assembly 330 is moved from the first position to the second position to avoid the material guide assembly 130.

[0090] In some other embodiments of the present application, the spreading assembly 330 may also be fixedly mounted on the first mounting portion 111 of the housing 110 .

[0091] See also Figure 3 , Figure 4 , Figure 5 , Fig.10 and Fig.11 In this embodiment, the sowing assembly 330 includes a connecting member 331, a sowing disc 333 and a driving motor 335. The connecting member 331 is rotatably mounted on the housing 110. The driving motor 335 is fixedly mounted on the connecting member 331. The sowing disc 333 is mounted on the output shaft of the driving motor 335. When the sowing assembly 330 is in the first position, the material flowing out from the discharge port 191 of the guide member 190 can fall on the sowing disc 333, and the sowing disc 333 spreads the material under the drive of the driving motor 335. The driving motor 335 and the sowing disc 333 are integrated by the connecting member 331, so that the material guide assembly 130 can rotate the sowing assembly 330 as a whole during the maintenance process, so that the sowing assembly 330 as a whole is away from the discharge port 191, so that the maintenance of the sowing device 300 is more convenient.

[0092] See also Figure 3 , Figure 4 , Figure 5 , Fig.10 and Fig.11 In this embodiment, the spreading assembly 330 further includes a hinge 337. The connecting member 331 includes a connecting portion 339 and a mounting portion 341 that are connected to each other. The connecting portion 339 is hinged to the housing 110 through the hinge 337. The driving motor 335 is mounted on the mounting portion 341. By providing the hinge 337, the spreading assembly 330 is rotatably mounted on the housing 110, and the installation method is simple and has high stability. In particular, the weight of the spreading device 300 is less increased, which facilitates the better flight of the drone 500.

[0093] See also Figure 3 , Figure 4 , Figure 5 , Fig.10 and Fig.11 In this embodiment, the connection portion 339 includes a first section 343 and a second section 345 connected vertically. The first section 343 is connected to the mounting portion 341, and the second section 345 is hinged to the housing 110 through a hinge 337. The connection portion 339 is configured as a first section 343 and a second section 345 connected vertically, so that the spreading disc 333 is directly opposite to the discharge port 191 when in the first position, so that the spreading disc 333 can better spread the material flowing out of the discharge port 191 when spreading.

[0094] In this embodiment, a mounting seat 127 is provided on the housing 110, and the second section 345 is hinged to the mounting seat 127 via a hinge 337. By providing the mounting seat 127 on the material guide assembly 130, it is convenient to hinge the sowing assembly and the material guide assembly 130 via the hinge 337.

[0095] In this embodiment, the mounting seat 127 is protruded from the top wall of the housing 110. Connecting ears 347 are provided on the two opposite side walls of the second section 345, and a mounting groove 349 is formed between the two mounting ears. A through hole 351 is provided on the connecting ear 347. A through hole 129 is provided on the mounting seat 127. The mounting seat 127 is located in the mounting groove 349 between the two mounting ears, and the hinge 337 passes through the through hole 351 and the through hole 129 in sequence to hinge the second section 345 with the mounting seat 127.

[0096] In this embodiment, the hinge 337 is a pin. In some other embodiments of the present application, the hinge 337 can also be an optical axis bolt, a latch pin, etc.

[0097] In some other embodiments of the present application, the mounting portion 341 may also be protruded from the first mounting portion 111 of the housing 110 .

[0098] In this embodiment, the sowing assembly 330 further includes a protective cover 353, which is mounted on the connecting member 331 by screws. The protective cover 353 is located on the side of the sowing disc 333 away from the connecting member 331. A feed port 355 is provided on the protective cover 353. When the sowing assembly 330 rotates to the first position relative to the material guide assembly 130, the feed port 355 is communicated with the discharge port 191. The protective cover 353 is provided and the feed port 355 is provided on the protective cover 353, so that the material flowing out of the discharge port 191 flows into between the protective cover 353 and the sowing disc 333 through the feed port 355, and the material is sown out by the rotation of the sowing disc 333.

[0099] See also Figure 3 , Figure 4 , Figure 5 , Fig.10 and Fig.11 In this embodiment, the spreading disc 333 includes a disc body 357 and a plurality of spreading blades 359 arranged on the disc body 357. The plurality of spreading blades 359 are evenly arranged radially on the side of the disc body 357 close to the feed port 355. A fixing portion 361 is arranged at the center of the spreading disc 333. The diameter of the fixing portion 361 is reduced from one end of the disc body 357 toward one end of the protective cover 353 to form a frustum shape. A hole 363 is arranged on the protective cover 353, and the fixing portion 361 is rotatably installed in the hole 363. The material flowing in from the feed port 355 falls on the high-speed rotating spreading disc, and after being accelerated by the spreading blades 359, the material leaves the spreading disc 333 under the action of centrifugal force to be spread. Thereby, the spreading range of the spreading disc 333 is improved.

[0100] See also Figure 3 , Figure 4 , Figure 5 , Fig.10 and Fig.11 In this embodiment, the protective cover 353 is formed in a cylindrical cover shape, and a material spreading port 365 is formed at the lower end of the peripheral wall of the protective cover 353. The feed port 355 is formed at the end wall of the protective cover 353. The hole 363 is opened at the end wall of the protective cover 353. The material enters between the spreading disc 333 and the protective cover 353 through the feed port 355, and the material is spread out from the material spreading port 365 after the spreading disc 333 rotates.

[0101] Please continue reading Figure 4 , Figure 5 and Fig. 9 In this embodiment, the guide member 190 is in a trumpet shape, having a first end 193 and a second end 195 opposite to each other. The diameter of the guide member 190 gradually increases from the first end 193 to the second end 195. The second end 195 is detachably mounted on the first mounting portion 111 of the housing 110 by screws. The first end 193 is used to be plugged into the feed port 355 of the protective cover 353. By detachably mounting the guide member 190 on the housing 110, the guide member 190 can be easily removed when the material guide assembly 130 is repaired and maintained. Most importantly, it is convenient and quick to insert the first end 193 of the guide member 190 into the feed port 355 of the protective cover 353.

[0102] Since the drone 500 is in a dynamic state in flight, only rotating the sowing assembly 330 on the shell 110 may cause the sowing assembly 330 to rotate during operation, affecting the effect of the action. In this embodiment, the sowing device 300 also includes a fixing member (not shown). When the sowing assembly 330 rotates to the first position relative to the material guide assembly 130, the sowing assembly 330 is fixedly connected to the shell 110 through the fixing member. By setting the fixing member, the sowing assembly 330 is fixedly connected to the shell 110 when the sowing assembly 330 is in the first position, thereby preventing the sowing assembly 330 of the drone 500 from rotating relative to the shell 110 during operation, thereby affecting the sowing effect of the sowing assembly 330.

[0103] In this embodiment, the fixing member is a screw. The connecting member 331 is provided with a fastening hole (not shown), the housing 110 is provided with a screw hole (not shown), and the screw passes through the fastening hole and the screw hole in sequence to fix the sowing assembly 330 to the housing 110.

[0104] Please continue reading Figure 3 , Figure 4 , Fig.10 and Fig.11In this embodiment, the mounting portion 341 includes a third section 367 and a fourth section 369. The third section 367 and the fourth section 369 are respectively protruded on both sides of the first section 343. The number of the driving motor 335, the spreading disc 333 and the protective cover 353 each includes two. One of the two driving motors 335 is mounted on the outer side of the third section 367, and the other driving motor 335 is mounted on the outer side of the fourth section 369. The two spreading discs 333 are respectively mounted on the output shafts of the two driving motors 151, and the two spreading discs 333 are located on the side of the third section 367 and the fourth section 369 away from the driving motor 151. One of the two protective covers 353 is mounted on the third section 367 by screws, and the other is mounted on the fourth section 369 by screws. When the spreading assembly 330 rotates to the first position relative to the housing 110 , the first ends 193 of the two flow guides 190 extend into the feed openings 355 of the two protective covers 353 , respectively, so that the discharge opening 191 is connected to the feed opening 355 .

[0105] In other embodiments of the present application, the number of the driving motor 335, the spreading disc 333 and the protective cover 353 may all be one. When the number of the driving motor 335, the spreading disc 333 and the protective cover 353 may all be one, two feed ports corresponding to the two guide members 190 may be provided on the protective cover 353, so that two guide assemblies 130 are used to guide the material to one spreading disc 333.

[0106] Example 2

[0107] Please refer to Fig.12 , Fig.13 , Fig.14 and Fig.15 , this embodiment is basically the same as the embodiment 1, except that the first mounting portion 111 and the second mounting portion 113 are located on two adjacent sides of the housing 110. The housing 110 further includes a third mounting portion 371, which is arranged opposite to the first mounting portion 111, and both the first mounting portion 111 and the third mounting portion 371 are connected to the second mounting portion 113. The accommodating chamber 115 is arranged on a side of the first mounting portion 111 away from the third mounting portion 371. The mounting chamber 119 includes a third chamber 373 and a fourth chamber 375 that are connected, the third chamber 373 is recessed in the second mounting portion 113, and the third chamber 373 is arranged between the two accommodating chambers 115. The fourth chamber 375 is recessed on a side of the third mounting portion 371 away from the second mounting portion 113, the driving motor 151 is arranged in the third chamber 373, and the transmission assembly 153 is arranged in the fourth chamber 375.

[0108] In this embodiment, the fourth chamber 375 is recessed on the second mounting portion 113, thereby lowering the height of the housing 110, effectively utilizing the space between the two accommodating chambers 115, improving space utilization, avoiding the housing 110 from extending in the height direction, reducing the windward area of ​​the housing 110, and making the flight of the drone 500 more stable. It is also convenient for the installation and maintenance of the drive motor 151, and the drive motor 151 can be removed and installed separately from the third chamber 373.

[0109] In this embodiment, the fourth chamber 375 includes a blocking wall 377 parallel to the first mounting portion 111, and the blocking wall 377 is provided with a first extension hole 379 connected to the accommodating chamber 115 and a second extension hole 381 connected to the third chamber 373. The material guide assembly 130 is rotatably mounted on the first extension hole 379, and the material guide assembly 130 partially extends out of the first extension hole 379 and is transmission-connected to the transmission assembly 153, and the output shaft of the drive motor 151 partially extends out of the second extension hole 381 and is connected to the transmission assembly 153.

[0110] In this embodiment, the material guiding assembly 130 includes an auger 131 and a connecting shaft 133 installed at the end of the auger 131 . The connecting shaft 133 is rotatably installed in the first extension hole 379 . The connecting shaft 133 partially extends out of the first extension hole 379 and is transmission-connected to the transmission assembly 153 .

[0111] In this embodiment, the transmission assembly 153 includes a gear 155, which is mounted on the side of the connecting shaft 133 extending out of the first extension hole 379, and the gear 155 is in transmission connection with the output shaft of the driving motor 151. The transmission ratio can be precisely controlled by the gear 155 to achieve controllable amount of material guide.

[0112] In this embodiment, the second mounting portion 113 is located at one side of the bottom of the housing 110, and the third chamber 373 is at least partially located at the bottom of the two accommodating chambers 115. The second mounting portion 113 is arranged at the bottom of the housing 110, so that there is no shielding below the third chamber 373, which is convenient for maintenance and heat dissipation of the drive motor 151.

[0113] In some other embodiments of the present application, the second mounting portion 113 may be located at one side of the top of the housing 110. It is understandable that as long as the third chamber is located between the two accommodating chambers 115, it will be sufficient.

[0114] The working principle and beneficial effects of a spreading device 300 and a drone 500 provided by the embodiment of the present invention include:

[0115] The embodiment of the present application forms a recessed accommodating cavity 115 on the first mounting portion 111 of the shell 110 and a recessed mounting cavity 119 on the second mounting wall, so that the material guide assembly 130 is rotatably mounted in the accommodating cavity 115 and the driving assembly 150 is mounted in the mounting cavity 119, and the driving assembly 150 is transmission-connected with the material guide assembly 130, and the sowing assembly 330 is disposed on the first mounting portion 111, and the sowing assembly 330 is used for sowing the material conveyed by the material guide assembly 130, thereby integrating the material guide assembly 130, the driving assembly 150 and the sowing assembly 330 in the shell 110, thereby improving the integration of the sowing device 300, making the structure of the sowing device 300 more compact and reducing the space occupied.

[0116] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A spreading device, characterized in that: include: A shell (110), the shell (110) comprising a first mounting portion (111) and a second mounting portion (113) connected to each other, the first mounting portion (111) being recessed with a receiving cavity (115), the shell (110) being provided with a material inlet (117) communicating with the receiving cavity (115), and the second mounting portion (113) being recessed with a mounting cavity (119); a material guiding component (130), the material guiding component (130) being rotatably mounted in the accommodating cavity (115), and the material guiding component (130) being used to convey the material flowing in from the material inlet (117); a driving assembly (150), the driving assembly (150) being installed in the installation cavity (119), the driving assembly (150) being in transmission connection with the material guiding assembly (130), the driving assembly (150) being used to drive the material guiding assembly (130) to rotate; and a spreading assembly (330), the spreading assembly (330) being arranged on the first mounting portion (111), the spreading assembly (330) being used for spreading the material conveyed by the material guiding assembly (130); The first mounting portion (111) is recessed with two accommodating cavities (115), the number of the material guide components (130) includes two, the two material guide components (130) are rotatably mounted on the two accommodating cavities (115), and the driving component (150) is respectively connected to the two material guide components (130) in a transmission manner; The installation cavity (119) is arranged between the two accommodating cavities (115), and the installation cavity (119) and the two accommodating cavities (115) have overlapping portions in the width direction of the housing (110).

2. The spreading device according to claim 1, characterized in that The shell (110) is provided with two feed inlets (117), and the two feed inlets (117) are respectively connected to the two accommodating chambers (115).

3. A spreading device according to claim 2, characterized in that: The two accommodating cavities (115) are recessed in parallel in the first mounting portion (111).

4. A spreading device (300) according to claim 1, characterized in that: The driving assembly (150) comprises a driving motor (151) and a transmission assembly (153); the driving motor (151) and the transmission assembly (153) are both installed in the installation cavity (119); the output shaft of the driving motor (151) is in driving connection with the transmission assembly (153); and the transmission assembly (153) is in driving connection with the material guiding assembly (130).

5. A spreading device (300) according to claim 4, characterized in that: The first mounting portion (111) and the second mounting portion (113) are arranged opposite to each other, the accommodating cavity (115) is recessed on a side of the first mounting portion (111) away from the second mounting portion (113), and the mounting cavity (119) is recessed on a side of the second mounting portion (113) away from the first mounting portion (111).

6. A spreading device (300) according to claim 5, characterized in that: The mounting cavity (119) comprises a first cavity (121) and a second cavity (123) which are interconnected, the first cavity (121) being recessed on a side of the second mounting portion (113) away from the first mounting portion (111), the first cavity (121) comprising a mounting wall arranged parallel to the first mounting portion (111), the second cavity (123) being recessed on the mounting wall, the driving motor (151) being mounted in the second cavity (123), and the transmission assembly (153) being mounted in the first cavity (121).

7. A spreading device (300) according to claim 6, characterized in that: The first mounting portion (111) is recessed with two accommodating cavities (115), and the second chamber (123) is arranged between the two accommodating cavities (115).

8. A spreading device according to claim 7, characterized in that: The second chamber (123) is at least partially located above the two accommodating chambers (115).

9. A spreading device according to claim 6, characterized in that: A mounting hole (125) is provided on the mounting wall, the accommodating cavity (115) is connected to the first chamber (121) through the mounting hole (125), the material guiding assembly (130) is rotatably mounted on the mounting hole (125), and a portion of the material guiding assembly (130) extends out of the mounting hole (125) and is in transmission connection with the transmission assembly (153).

10. A spreading device according to claim 9, characterized in that: The material guiding assembly (130) comprises an auger (131) and a connecting shaft (133) mounted on the end of the auger (131); the connecting shaft (133) is rotatably mounted on the mounting hole (125); a portion of the connecting shaft (133) extends out of the mounting hole (125) and is transmission-connected to the transmission assembly (153).

11. A spreading device according to claim 4, characterized in that: The first mounting portion (111) and the second mounting portion (113) are located on two adjacent sides of the housing (110).

12. A spreading device according to claim 11, characterized in that: The housing (110) further comprises a third mounting portion (371), the third mounting portion (371) being arranged opposite to the first mounting portion (111), and the first mounting portion (111) and the third mounting portion (371) are both connected to the second mounting portion (113); The accommodating cavity (115) is arranged on a side of the first mounting portion (111) away from the third mounting portion (371); The mounting cavity (119) comprises a third cavity (373) and a fourth cavity (375) which are connected to each other. The third cavity (373) is recessed in the second mounting portion (113), and the fourth cavity (375) is recessed on a side of the third mounting portion (371) away from the second mounting portion (113). The drive motor (151) is disposed in the third cavity (373), and the transmission assembly (153) is disposed in the fourth cavity (375).

13. A spreading device according to claim 12, characterized in that: The first mounting portion (111) is provided with two accommodating cavities (115) recessed therein, and the third chamber (373) is arranged between the two accommodating cavities (115).

14. A spreading device according to claim 13, characterized in that: The second mounting portion (113) is located at one side of the bottom of the housing (110), and the third chamber (373) is at least partially located at the bottom of the two accommodating cavities (115).

15. A spreading device according to claim 12, characterized in that: The fourth chamber (375) includes a blocking wall (377) parallel to the first mounting portion (111), and the blocking wall (377) is provided with a first extension hole (379) communicating with the accommodating cavity (115) and a second extension hole (381) communicating with the third chamber (373); the material guide component (130) is rotatably mounted on the first extension hole (379), and the material guide component (130) partially extends out of the first extension hole (379) and is transmission-connected to the transmission component (153); the output shaft of the drive motor (151) partially extends out of the second extension hole (381) and is connected to the transmission component (153).

16. A spreading device according to claim 15, characterized in that: The material guiding assembly (130) comprises an auger (131) and a connecting shaft (133) mounted on the end of the auger (131); the connecting shaft (133) is rotatably mounted on the first extension hole (379); a portion of the connecting shaft (133) extends out of the first extension hole (379) and is transmission-connected to the transmission assembly (153).

17. The spreading device according to claim 10 or 16, characterized in that The transmission assembly (153) comprises a gear (155), the gear (155) is mounted on the connecting shaft (133), and the gear (155) is transmission-connected to the output shaft of the driving motor (151).

18. A drone, characterized in that: The spreading device (300) comprises any one of claims 1-17.

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