A spreading device, a spreading mechanism, and an unmanned aerial vehicle

Abstract

The application discloses a spreading device, a spreading mechanism and an unmanned aerial vehicle, and belongs to the technical field of unmanned mobile devices. The spreading device comprises a material box, a base and a spreader. The material box has an open state and a folded state. When the material box is in the open state, an accommodating space is formed in the material box. The material box can be folded under force to adjust from the open state to the folded state, so that the distance between the opposite two ends or the opposite two sides of the material box is reduced. When the spreading device is in a use state, the material box is in the open state, and the accommodating space, a first material passing space and a second material passing space are communicated. When the spreading device is in a storage state, the material box is in the folded state. In the spreading device, the spreading mechanism and the unmanned aerial vehicle, the material box is foldable, the spreading device has a small storage volume, the packaging and transportation volume can be reduced, and the transportation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of unmanned mobile equipment, and in particular to a spreading device, a spreading mechanism and an unmanned aerial vehicle. Background Art

[0002] Unmanned mobile equipment, such as drones, autonomous vehicles, and autonomous boats, are widely used in agriculture. Spreading mechanisms used on these platforms are primarily used to spread agricultural materials such as fertilizers, seeds, and fish feed. Equipping these platforms with spreading mechanisms can improve agricultural efficiency.

[0003] In the related art, the spreading mechanism in the unmanned mobile device is integrated with or separated from the device body, but the spreading mechanism occupies a large space, making the unmanned mobile device bulky when packaged and transported, resulting in high transportation costs.

[0004] Application Contents

[0005] The purpose of the embodiments of the present invention is to provide a spreading device, a spreading mechanism and an unmanned aerial vehicle, wherein the material box is foldable and the spreading device has a smaller storage volume, which can reduce the packaging and transportation volume and reduce the transportation cost.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A spreading device comprising:

[0008] A material box having an open state and a folded state; when the material box is in the open state, a storage space is formed inside; the material box can be folded under force to adjust from the open state to the folded state, thereby reducing the distance between opposite ends or two sides of the material box;

[0009] The base forms a first material transfer space inside;

[0010] The spreader forms a second material transfer space inside;

[0011] The spreading device has a use state and a storage state; when the spreading device is in the use state, the material box is in the open state, the material box is connected to the base, the base is connected to the spreader, and the accommodating space, the first material transfer space and the second material transfer space are connected; when the spreading device is in the storage state, the material box is in the folded state.

[0012] Preferably, the material box is a flexible box.

[0013] Preferably, the material box comprises a box top and a box bottom that are arranged opposite to each other; when the spreading device is in the use state, the box bottom is connected to the base;

[0014] The distance between the top end and the bottom end of the box is the box height. The box height when the material box is in the folded state is less than the box height when the material box is in the opened state.

[0015] As an advantage, it further comprises a support member;

[0016] When the spreading device is in the use state, the support member is detachably connected to the material box, and the support member is used to limit the folding of the material box; when the spreading device is in the storage state, the support member is disconnected from the material box, and the material box is in the folded state.

[0017] Preferably, the material box includes a box side portion, the box side portions are connected end to end to define the accommodation space through the inner wall of the box side portion; the end portion of the box side portion is connected to the base;

[0018] When the spreading device is in the use state, the support member is arranged on the side of the box away from the accommodating space or in the accommodating space, and the support member is detachably connected to the side of the box; when the spreading device is in the storage state, the support member is disconnected from the side of the box.

[0019] Preferably, the support member is a support rod, and the support rod includes a first rod portion, a second rod portion, and a third rod portion connected in sequence; the material box, the base, and the spreader are arranged along the z direction;

[0020] When the spreading device is in the use state, the second rod portion extends along the x-direction or the y-direction, the first rod portion and the third rod portion both extend along the z-direction for detachable connection with the base, and one or more of the first rod portion, the second rod portion, and the third rod portion are detachably connected to the side of the box; the x-direction, the y-direction, and the z-direction are perpendicular to each other.

[0021] Preferably, the material box includes a box side portion, the box side portions are connected end to end to define the accommodation space through the inner wall of the box side portion; the end of the box side portion is connected to the base; the box side portion includes a first side wall portion and a second side wall portion opposite to each other in the x direction;

[0022] When the spreading device is in the use state, the support member is arranged on the side of the box away from the base, the support member is detachably connected to the first side wall portion, the support member is detachably connected to the second side wall portion, and the support member is used to be connected to a load device; when the spreading device is in the storage state, the support member is disconnected from the side of the box.

[0023] Preferably, the support member is a support rod; the support rod comprises a first rod portion, a second rod portion and a third rod portion connected in sequence;

[0024] When the spreading device is in the use state, the second rod portion extends along the y direction or the x direction, the first rod portion and the second rod portion both extend along the x direction, the second rod portion is detachably connected to the side portion of the box, the first rod portion is used to connect to the load platform, and the third rod portion is used to connect to the load platform.

[0025] Preferably, when the spreading device is in the use state, the support member is detachably connected to the base; when the spreading device is in the storage state, the support member is disconnected from the base.

[0026] Preferably, it further comprises an adapter and a bayonet; the support member is a support rod, and the support rod is connected to the adapter;

[0027] The adapter and / or the base is provided with a pin hole, and the bayonet passes through the pin hole, so that the adapter is detachably connected to the base, thereby detachably connecting the support rod to the base.

[0028] Preferably, the adapter is provided with a mounting hole; the base includes a base body and a mounting post provided on the base body, and the pin hole is provided on the mounting post;

[0029] The mounting post passes through the mounting hole, and the bayonet passes through the pin hole. The bayonet is located on the side of the adapter away from the base body. The bayonet restricts the adapter from escaping from the mounting post, so that the adapter is detachably connected to the base.

[0030] Preferably, the latch is a spring pin.

[0031] As a preference, it further comprises a socket;

[0032] The socket is connected to the side of the box, and a socket hole is provided inside the socket or a socket hole is formed between the socket and the material box; the support passes through the socket hole to be detachably connected to the material box; the adapter includes a plug-in portion;

[0033] The adapter is rotatably connected to the base; the base body is provided with a limiting surface, and when the adapter abuts against the limiting surface, the plug-in portion faces the socket hole, so that the support rod can be plugged into the plug-in portion after passing through the socket hole.

[0034] Preferably, the box side portion includes a first side wall portion and a second side wall portion that are opposite to each other in the x direction; the first side wall portion is provided with one or more socket members, and the second side wall portion is provided with one or more socket members;

[0035] At least one of the sockets provided on the first side wall is an openable socket, and at least one of the sockets provided on the second side wall is an openable socket; the openable sockets include a first side and a second side relative to each other, the first side being connected to the side of the box; the second side being detachably connected to the side of the box, or the second side being detachably connected to the first side.

[0036] A spreading mechanism, comprising:

[0037] The spreading device of the above scheme;

[0038] The loading device includes a loading platform and a supporting frame; the loading platform is arranged on the side of the material box away from the base, and the loading platform is connected to the spreading device; the supporting frame is connected to the loading platform, and the spreading device is arranged between the supporting frames.

[0039] An unmanned aerial vehicle, comprising:

[0040] The spreading mechanism of the above scheme;

[0041] The aircraft body and the load platform are connected with the aircraft body.

[0042] The beneficial effects of the present invention are:

[0043] In the spreading device, a material box connected to the spreader is configured to store the material to be spread. The material box is used to increase the single spreading amount of the unmanned mobile device and improve the spreading operation efficiency. In addition, the material box is configured to be foldable. When the material box is in an open state, it provides a larger storage space for storing materials. When the spreading device needs to be packaged for transportation or storage, the material box is folded to a folded state to reduce the external dimensions of the spreading device.

[0044] The spreading device, spreading mechanism and unmanned aerial vehicle can reduce the packaging and transportation volume and lower the transportation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0046] Figure 1 Schematic diagram of the structure of the sowing mechanism according to one embodiment of the present invention (the sowing mechanism is in use in the figure);

[0047] Figure 2Schematic diagram of the structure of the sowing mechanism according to one embodiment of the present invention (the sowing mechanism is in the stowed state in the figure);

[0048] Figure 3 It is a structural schematic diagram of a loading device of a spreading mechanism according to one embodiment of the present invention;

[0049] Figure 4 for Figure 3 A magnified view of part A;

[0050] Figure 5 This is a diagram showing the assembly relationship between the support frame and the load platform according to one embodiment of the present invention;

[0051] Figure 6 for Figure 5 A magnified view of part B;

[0052] Figure 7 This is a structural diagram of a material box according to one embodiment of the present invention;

[0053] Figure 8 This is a schematic diagram of the assembly between the material box, the load platform, and the base according to one embodiment of the present invention;

[0054] Figure 9 for Figure 8 Magnified view of part C;

[0055] Figure 10 It is a partial structural diagram of a spreading device according to one embodiment of the present invention;

[0056] Figure 11 A schematic diagram of the assembly of the base and the support frame according to an embodiment of the present invention;

[0057] Figure 12 Schematic diagram of the structure of a sowing mechanism according to another embodiment of the present invention (the sowing mechanism is in use in the figure);

[0058] Figure 13 for Figure 12 Enlarged view of part D in FIG;

[0059] Figure 14 This is a schematic diagram of the assembly of a material box and a support member according to another embodiment of the present invention.

[0060] In the figure: 10, loading device; 11, loading platform; 111, first hanging portion; 112, first through-hole; 12, support frame; 13, frame fixing member; 20, spreading device; 21, material box; 2101, storage space; 211, box side; 2111, first side wall; 2112, second side wall; 2113, third side wall; 2114, fourth side wall; 212, second hanging portion; 213, cover; 22, Base; 222, mounting column; 2221, pin hole; 223, limiting surface; 23, spreader; 241, flexible connector; 242, male connector structure; 243, female connector structure; 25, snap-fit ​​structure; 251, first buckle; 252, second buckle; 253, locking buckle; 30, support member; 31, first rod; 32, second rod; 33, third rod; 40, socket; 401, socket hole; 90, material meter. DETAILED DESCRIPTION

[0061] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled 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.

[0062] In the description of the present invention, unless otherwise specified or limited, the terms "connected" and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0063] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0064] With the development of technology, unmanned mobile devices such as drones, autonomous vehicles, and autonomous ships are being widely used in various fields to perform related tasks. For example, in the agricultural field, drones, autonomous vehicles, and other unmanned mobile devices are used to spread agricultural materials.

[0065] Agriculture includes various industries, including crop production, forestry, animal husbandry, and aquaculture (fishing). The materials used by the spreading mechanism to spread can include, but are not limited to, seeds, fertilizers, pesticides, fish feed, growth regulators, and feed regulators. Agricultural materials can include granular materials, powders, liquid materials, and mixed materials.

[0066] In the agricultural field, unmanned mobile devices such as drones and autonomous vehicles are often equipped with spreading mechanisms to spread agricultural materials. Currently, the spreading mechanisms in unmanned mobile devices are typically integrated with the main body of the device. The packaging and transportation of the spreading mechanisms are bulky, resulting in high transportation costs. The spreading mechanisms also take up a lot of space when stored, making them inconvenient.

[0067] In order to improve the technical problems of large packaging volume and high transportation cost of unmanned mobile equipment equipped with a spreading mechanism in the related art, the present application provides a spreading device 20, provides a spreading mechanism using the aforementioned spreading device 20, and also provides an unmanned aerial vehicle using the aforementioned spreading mechanism.

[0068] The material box 21 of the spreading device 20 can be opened to expand the volume when in use; the material box 21 can be folded to reduce the size when it is needed for packaging, transportation or storage. The use of the spreading mechanism of the spreading device 20 and the unmanned mobile device can reduce the packaging and transportation costs.

[0069] In one embodiment, the original packaging volume of the entire spreading mechanism is reduced by 1 / 3 through quick disassembly, and the transportation cost of the spreading mechanism is greatly reduced.

[0070] Figure 1 、 Figure 12 The structure of the spreading mechanism provided by this application is shown in the figure. In the embodiment of this application, the spreading mechanism is installed on the flying body of the unmanned aerial vehicle, which includes wings, a power system, a control system, etc. The flying body drives the spreading mechanism to move in flight, thereby driving the spreading mechanism to a designated location to release and spread the material, thereby performing the spreading operation.

[0071] In other embodiments, the spreading mechanism can also be installed in unmanned mobile devices such as unmanned vehicles and unmanned ships.

[0072] Please refer to Figures 1 to 14 In one embodiment of the spreading mechanism of the present invention, the spreading mechanism includes a loading device 10 and a spreading device 20 .

[0073] This embodiment uses a spreading mechanism for an unmanned aerial vehicle as an example. For ease of description, when the spreading mechanism is in use, the vertical direction of the spreading mechanism is defined as the z-direction (illustrated by the z-axis in the figure), the left-right direction is defined as the x-direction (illustrated by the x-axis in the figure), and the front-back direction is defined as the y-direction (illustrated by the y-axis in the figure). The x-axis, y-axis, and z-axis are perpendicular to each other. When the spreading mechanism is in use, the load device 10 and its components, the spreading device 20 and its components, and the spreading mechanism have the same x, y, and z directions.

[0074] When the UAV is parked on a flat surface, the z direction of the spreading mechanism is the same as the direction of gravity.

[0075] Of course, in other embodiments, the load mechanism can also be applied to unmanned mobile devices such as unmanned vehicles and unmanned ships.

[0076] The spreading device 20 includes a material box 21, which is a foldable structure. The material box 21 has an open state and a folded state. The spreading device 20 and the spreading mechanism both have a use state and a storage state. Figure 1 、 Figure 12 As shown, when the spreading mechanism is in use, the spreading device 20 is in use and the material box 21 is in an open state. Figure 2 As shown, when the spreading mechanism is in the retracted state, the spreading device 20 is in the retracted state, and the material box 21 is in the folded state.

[0077] The material box 21 can be folded under the action of a force, so that when the material box 21 is adjusted from the open state to the folded state, the distance between the opposite ends of the material box 21 or the distance between the opposite sides of the material box 21 decreases, and the external dimensions of the material box 21 decrease. In other words, the material box 21 is configured to be foldable along a first direction, and when the material box 21 is folded and adjusted from the open state to the folded state, the external dimensions of the material box 21 in the first direction decrease.

[0078] In this embodiment, the first direction is the height direction of the spreading device 20, that is, the z direction. In other embodiments, the first direction may also be other directions.

[0079] In this embodiment, the spreading device 20 is configured as follows:

[0080] The spreading device 20 includes the aforementioned material tank 21, a base 22, and a spreader 23. The material tank 21 is used to store material. The spreader 23 is used to spread the material to a target area according to parameters such as a set amount and a set spreading range. The interior of the base 22 forms a first material transfer space, and the interior of the spreader 23 forms a second material transfer space.

[0081] When the material box 21 is in an open state, the material box 21, the base 22, and the spreader 23 are arranged in sequence along the height direction, the material box 21 is connected to the base 22, and the base 22 is connected to the spreader 23. The material box 21 is in an open state to form a accommodating space 2101 inside the material box 21. The accommodating space 2101, the first material transfer space, and the second material transfer space are connected. The material stored in the material box 21 can enter the spreader 23 through the base 22 and be spread to the target area through the spreader 23.

[0082] The material box 21 is provided with a first mounting structure, and the base 22 is provided with a second mounting structure.

[0083] When the spreading mechanism is in use, the load platform 11 is connected to the support frame 12, forming a mounting space between the load platform 11 and the support frame 12. The spreading device 20 is located in the mounting space. The material box 21 is in the open state, detachably connected to the load platform 11 via a first mounting structure, and the base 22 is detachably connected to the support frame 12 via a second mounting structure. In this manner, the spreading device 20 can be mounted on the load device 10 via the first and second mounting structures.

[0084] It should be noted that, in this application, "removably connected, detachably connected, or detachably connected" between two structures via a component means that the two structures are currently connected and, when required to be separated, the two structures can be disconnected by an external force. The connection in the quick-release component can be achieved by screw connection, snap connection, buckle connection, magnetic connection, Velcro attachment, wedge fit, etc.

[0085] Compared to directly mounting the spreader 20 on the aircraft, the spreader 20 of this embodiment is mounted on the aircraft via a load device 10, which then bears the weight of the spreader 20. This, through the rational design and selection of the structure and materials of the load device 10, can reliably bear the weight of the spreader 20, improving the stability and reliability of the installation of the spreader 20. This ensures that the spreader 20 can perform stably even when the material box 21 is loaded with a large amount of material. This also facilitates the replacement of different load devices 10 according to different load requirements, thereby improving the load device 10's ability to bear the weight of the spreader 20.

[0086] In this embodiment, the support frame 12 includes legs disposed on two opposite sides of the loading platform 11 .

[0087] The spreading device 20 of this embodiment is equipped with a material box 21 connected to a spreader 23. The material box 21 stores material and supplies material to the spreader 23. The cooperation between the material box 21 and the spreader 23 not only increases the single spreading amount through the material box 21, but also ensures the spreading effect through the spreader 23, thereby improving the spreading efficiency. Furthermore, the material box 21 is configured as a foldable structure. When the material box 21 is in the open state, it provides a large storage space 2101 for storing material. When the spreading device 20 needs to be packaged for transportation or storage, the material box 21 is folded into a collapsed state to reduce the overall size of the spreading device 20.

[0088] Therefore, the spreading device 20 and the spreading mechanism of this embodiment can reduce the packaging and transportation volume, reduce the transportation cost, and reduce the storage space occupied, making storage more convenient.

[0089] In one embodiment of the spreading mechanism of the present application, the material box 21 is configured as follows to achieve folding of the material box 21 and storage of the spreading device 20:

[0090] The material box 21 includes a box top end and a box bottom end that are oppositely arranged.

[0091] When the spreading device 20 is in use, the bottom of the box is connected to the base 22. The distance between the top and bottom of the box is the box height, and the box height when the material box 21 is in the folded state is less than the box height when the material box 21 is in the open state.

[0092] In other words, when the spreading device 20 is in use, the material box 21, base 22, and spreader 23 are arranged sequentially along the z-direction (height direction) of the spreading device 20. The material box 21 is configured to be foldable along the z-direction of the spreading device 20. When the spreading device 20 is in use, the material box 21 is pulled and extended along the z-direction of the spreading device 20 to create a material storage space 2101, which cooperates with the spreader 23 to perform the spreading operation.

[0093] If the spreading device 20 in use is directly packed and transported in a packaging box, the packaging volume is large. After packaging, there is a large idle space in the packaging box due to the gaps between the parts of the spreading mechanism, resulting in space waste.

[0094] In this embodiment, when it is necessary to use a packaging box to package and transport the spreading device 20, the material box 21 is folded along the z direction toward the base 22 without disassembling the material box 21 and the base 22. When the material box 21 and the base 22 are configured to be fixedly connected, folding the material box 21 can also reduce the external dimensions of the spreading device 20 in the z direction, thereby effectively reducing the packaging volume of the spreading device 20.

[0095] In other embodiments, when the spreading device 20 is in use, the left-right direction of the material box 21 is aligned with the x-direction of the spreading device 20, and the front-to-back direction of the material box 21 is aligned with the y-direction of the spreading device 20. The material box 21 may also be configured to be foldable in the left-right direction and / or the front-to-back direction. When the spreading device 20 needs to be stored, the material box 21 is removed from the base 22 and folded left-right or front-to-back.

[0096] In one embodiment, the volume of the material box 21 in the folded state is a, the volume of the material box 21 in the opened state is b, and the ratio of a to b (a / b) is 0 to 0.8.

[0097] In one embodiment of the spreading mechanism of the present application, the material box 21 is configured as follows so that the material box 21 is foldable:

[0098] The material box 21 is a flexible structure. The material box 21 is a flexible box body. The material box 21 is made of flexible material.

[0099] The flexible material may be cloth, leather, rubber or thin plastic, etc. In other words, the material box 21 may be a cloth box, a soft leather box, a soft rubber box or a foldable plastic box, etc.

[0100] The material box 21 is a flexible box. On the one hand, the material box 21 can be folded in multiple directions, which makes it convenient to fold the material box 21 according to different needs, so that the material box 21 can adapt to different packaging or storage needs after folding; on the other hand, the flexible material and soft material are lighter in weight, which can reduce the overall weight of the material box 21, so that the load capacity of the unmanned mobile equipment can be increased, thereby increasing the single sowing amount of the unmanned mobile equipment, thereby achieving the effect of improving work efficiency.

[0101] Of course, in other embodiments, the material box 21 may also be constructed by comprising multiple rigid panels and flexible connecting strips, with adjacent rigid panels connected by flexible connecting strips. To fold the material box 21, the flexible connecting strips are bent, and the multiple rigid panels are stacked. In other embodiments, the material box 21 may also be constructed by comprising multiple rigid panels and hinged assemblies, with the panels hingedly connected by the hinged assemblies. To fold the material box 21, the adjacent panels are simply flipped relative to each other. In other embodiments, the material box 21 may also employ other structural configurations, which are not detailed here.

[0102] In one embodiment of the spreading mechanism of the present application, when a foldable box is used as the material box 21 , in order to ensure the reliability of the material box 21 in carrying the material, this embodiment is further configured with a support member 30 .

[0103] The spreading device 20 further includes a first rod assembly. When the spreading device 20 is in use, the support member 30 is detachably connected to the box body via the first rod assembly, and the support member 30 restricts the material box 21 from folding in the open state, thereby maintaining the material box 21 in the open state.

[0104] After the support member 30 is assembled on the material box 21, the support member 30 can, on the one hand, strengthen the structural strength of the material box 21, improve the material carrying capacity of the material box 21, and prevent the material box 21 from being damaged; on the other hand, the support member 30 can prevent the material box 21 from accidentally folding, ensure that the material box 21 remains in an open state, and ensure that the spreading operation is carried out smoothly.

[0105] When the spreading device 20 is in the stowed state, the first rod assembly is disconnected, the support member 30 is disconnected from the box body, and the material box 21 is in a folded state. Without the restriction of the support member 30, the material box 21 can be folded under the action of an external force for easy storage.

[0106] In this embodiment, the first rod assembly component is configured to be disassembled and assembled manually or using tools, so as to achieve quick disassembly and assembly of the support member 30 .

[0107] In this embodiment, the material box 21 is a flexible box made of a soft material. While foldable, it also features a simple structure and is lightweight. The spreading device 20 is equipped with a support member 30 that cooperates with the flexible box to reinforce the box's strength when it is open. This allows even a large flexible box to reliably hold material, ensuring stable spreading operations. Thus, the spreading device 20 combines the advantages of a large storage space 2101, a simple structure, light weight, a small packaging volume, convenient storage, and stable spreading operations.

[0108] Of course, in other embodiments, the foldable material box 21 made of hard material may also cooperate with the support member 30 , and the support member 30 assists the material box 21 in maintaining the open state.

[0109] In one embodiment, the support member 30 is disposed on the side of the material box 21. In another embodiment, the support member 30 is disposed on the side of the material box 21 away from the base 22. In other embodiments, the support member 30 can be disposed on both the side and the top of the material box 21.

[0110] Please refer to Figure 1 In one embodiment of the spreading device 20 of the application, on the basis of adopting the above-mentioned embodiment to set the support member 30, the support member 30 is set on the side of the material box 21, and the support member 30 is used to provide lateral support to the material box 21:

[0111] The material box 21 includes a side portion 211, which is connected at its end to define the storage space 2101 through its inner wall. The side portion 211 is a foldable structure. The side portion 211, at its opposite ends in the z-direction of the spreading device 20, defines a top and bottom portion, respectively. The bottom portion is connected to the base 22. The material box 21 has an upper opening and a lower opening at its opposite ends in the z-direction, respectively communicating with the storage space 2101. Material is added to the material box 21 through the upper opening, and enters the base 22 through the lower opening.

[0112] When the spreading device 20 is in the use state, the support member 30 is disposed on a side of the box side portion 211 facing away from the accommodation space 2101, that is, the support member 30 is disposed outside the box side portion 211. In the z-direction of the spreading device 20, the support member 30 is disposed on a side of the base 22 facing away from the spreader 23. The support member 30 is detachably connected to the box side portion 211. When the spreading device 20 is in the storage state, the support member 30 is disconnected from the box side portion 211.

[0113] like Figure 1 、 Figure 12 As shown, when the spreading device 20 is in use, the material box 21, base 22, and spreader 23 are arranged from top to bottom. Material is contained in the material box 21, and under the action of gravity, the material exerts pressure on the box side 211. In this embodiment, when the spreading device 20 is in use, support members 30 are provided laterally to the box side 211 and connected to the box side 211. The support members 30 support the box side 211 to reinforce the structural strength of the box side 211, ensuring reliable support for the material by the box side 211 and increasing the material weight that the material box 21 can bear. Furthermore, the support members 30 prevent the material box 21 from collapsing under the pressure of the material. In other words, the support members 30 provided laterally to the box side 211 serve to increase the strength of the material box 21 and, on the other hand, to prevent the material box 21 from collapsing, thereby maintaining the material box 21 in an open position. In this way, the spreading device 20 in this embodiment can not only reduce the packaging volume by folding the material box 21 , but also ensure that the spreading device 20 performs a stable and reliable spreading operation through the support member 30 .

[0114] In this embodiment, when the spreading device 20 is in use, the support member 30 is disposed outside the box side portion 211, and does not occupy the space for storing materials in the material box 21, which is structurally sound. In other embodiments, when the spreading device 20 is in use, the support member 30 can also be disposed within the storage space 2101.

[0115] In other embodiments, the feeding port of the material box 21 may also be disposed on the box side portion 211 , that is, on the side of the material box 21 .

[0116] In order to ensure the supporting effect of the support member 30 on the material box 21, the support member 30 is configured such that when the spreading device 20 is in the use state, the support member 30 is detachably connected to the base 22. When the spreading device 20 is in the storage state, the support member 30 is disconnected from the base 22.

[0117] In this embodiment, the support member 30 is a rigid structure. In this case, the support member 30 is connected to the base 22, and its position is restricted by the base 22. This provides a stronger support for the material box 21, making the material box 21 less susceptible to accidental folding. Furthermore, when the support member 30 is positioned laterally, it is easier to connect to the base 22, making the overall structure of the spreading device 20 more compact.

[0118] Please continue to refer to Figure 1 、 Figures 8 to 10 In this embodiment, the support member 30 and the base 22 are assembled and disassembled in the following manner:

[0119] The second rod assembly assembly includes an adapter and a bayonet. The support member 30 is a support rod, which is connected to the adapter. The adapter is detachably connected to the base 22 via the bayonet. The adapter is provided with a structure for mounting and cooperating with the base 22.

[0120] In this embodiment, the support rod is a solid or hollow metal rod, and the cross-sectional shape of the support rod is not limited. The adapter is a plastic part formed by injection molding or other methods. Compared to machining the structure for mounting and mating with the base 22 on the support rod, machining the mounting and mating structure on the adapter is easier and more convenient for manufacturing. Of course, in other embodiments, the adapter can be omitted, and the support rod can be removably connected to the base 22 via a bayonet pin by drilling a hole in the support rod, for example.

[0121] The adapter and / or the base 22 is provided with a pin hole 2221 , and the bayonet passes through the pin hole 2221 to connect the adapter with the base 22 , thereby connecting the support rod with the base 22 .

[0122] In this embodiment, the adapter, the latch, and the base 22 cooperate with each other in the following manner:

[0123] The adapter is provided with a mounting hole. The base 22 includes a base body and a mounting post 222 connected to the base body and protruding relative to the base body. A pin hole 2221 is provided in the mounting post 222. When the adapter and base 22 are connected, the mounting post 222 passes through the mounting hole, and the pin hole 2221 is located on the side of the adapter facing away from the base body. The latch pin is inserted into and passes through the pin hole 2221, which prevents the adapter from being removed from the mounting post 222, thereby ensuring a removable and relatively rotatable connection between the adapter and the base 22.

[0124] When the support member 30 needs to be installed, the adapter is mounted on the base 22 and then the bayonet is inserted, and the connection between the support rod and the adapter is completed; when the support member 30 needs to be disassembled, the adapter and the support member 30 can be disassembled by pulling out the bayonet.

[0125] By configuring the adapter, the latch and the base 22 as described above, the adapter can be arranged on the outside of the base 22, making the installation and disassembly of the adapter and the support 30 more convenient, enabling quick installation and disassembly, and improving assembly and disassembly efficiency.

[0126] In other embodiments, a protrusion may be provided on the adapter, the pin hole 2221 may be provided on the protrusion of the adapter, a hole may be provided on the base 22 , and the pin may be inserted into the pin hole 2221 after the protrusion passes through the hole.

[0127] In other embodiments, convex portions may be provided on both the adapter and the base 22 , and pin holes 2221 may be provided on both convex portions, so that the adapter can be assembled and disassembled by passing a bayonet through the two pin holes 2221 .

[0128] Please continue reading Figure 9 In order to realize quick disassembly and assembly of the adapter and ensure the reliability of the installation of the adapter, a spring pin with locking capability is used as a bayonet pin.

[0129] The spring pin includes a first pin and a second pin. The head end of the first pin is connected to the head end of the second pin, and the tail end of the first pin and the tail end of the second pin are both free ends. The second pin is a wavy rod so that the second pin has the ability to accumulate elastic force after being deformed by force. The first pin is used to insert into the pin hole 2221. When the first pin is inserted into the pin hole 2221, the second pin opens under the interference of the base 22 and / or the adapter. The second pin is clamped toward the direction of the first pin under the action of elastic force, thereby ensuring that the spring pin is stably installed on the base 22 and / or the adapter. When there is no unlocking force, the first pin is not easy to fall out of the pin hole 2221, ensuring the reliability of the spring pin installation, thereby ensuring the reliability of the installation of the adapter and the support member 30.

[0130] In other embodiments, a bayonet with a slightly bent end or other types of bayonet may also be used.

[0131] The laterally arranged support member 30 is detachably connected to the material box 21 in the following manner:

[0132] The spreading device 20 further includes a sleeve 40 and an adapter. The support member 30 is a support rod.

[0133] The socket 40 is connected to the box side 211, forming a socket hole 401 between the socket 40 and the material box 21. The support rod passes through the socket hole 401. The support rod includes at least two rod segments arranged at an angle, at least one of which passes through the socket hole 401. The support rod is detachably connected to the material box 21 via the socket 40. The adapter includes a plug-in portion that is configured to plug into the support rod for detachable connection.

[0134] The adapter is rotatably connected to the base 22. The base body is provided with a limiting surface 223. When the adapter abuts against the limiting surface 223, the plug-in portion faces the socket hole 401, so that the support rod can be plugged into the plug-in portion after passing through the socket hole 401.

[0135] In this embodiment, when the adapter and the base 22 are assembled using a pin, since the adapter can rotate relative to the base 22, during the process of assembling the support rod and the adapter, if the base body is not provided with a limiting surface 223, it is necessary to manually align the support rod and the adapter so that the two can be plugged and connected.

[0136] In this embodiment, the base is provided with a stop surface 223. The adapter is first rotated until it contacts the stop surface 223. The stop surface 223 provides feedback that the adapter is in position. After the support rod passes through the socket hole 401, it can be blindly plugged into the adapter to achieve a plug-in connection, eliminating the need for manual alignment of the support rod and adapter. The coordination between the adapter and the stop surface 223 allows for rapid assembly of the adapter and support rod, reducing assembly difficulty, improving assembly efficiency, and enabling quick assembly of the adapter and support member 30.

[0137] Please continue to refer to Figure 1 、 Figure 2 、 Figure 14 The support member 30 is configured as follows to improve the supporting effect of the support member 30 provided on the side of the box side portion 211:

[0138] The support member 30 is a support rod, which includes a first rod portion 31, a second rod portion 32 and a third rod portion 33 connected in sequence. The first rod portion 31 and the third rod portion 33 are bent and extended to the same side relative to the second rod portion 32. The support rod is a "凵"-shaped structure or a "U"-shaped structure.

[0139] The box side portion 211 includes a first side wall portion 2111 and a second side wall portion 2112 that are opposite to each other in the x-direction, and also includes a third side wall portion 2113 and a fourth side wall portion 2114 that are opposite to each other in the y-direction. The first side wall portion 2111, the third side wall portion 2113, the second side wall portion 2112, and the fourth side wall portion 2114 are connected in sequence, and the fourth side wall portion 2114 is connected to the first side wall portion 2111 to form the box side portion 211, which is open at the top and bottom.

[0140] The spreading device 20 includes at least two supporting members 30 respectively arranged on the side of the first side wall portion 2111 and the side of the second side wall portion 2112 .

[0141] When the spreading device 20 is in use, the opening of the bent support rod faces downward, the second rod portion 32 extends in the y-direction, and the first rod portion 31 and the third rod portion 33 both extend in the z-direction. For the support member 30 mounted laterally to the first sidewall portion 2111, one or more of the first rod portion 31, the second rod portion 32, and the third rod portion 33 are detachably connected to the first sidewall portion 2111. For the support member 30 mounted laterally to the second sidewall portion 2112, one or more of the first rod portion 31, the second rod portion 32, and the third rod portion 33 are detachably connected to the second sidewall portion 2112.

[0142] One end of the first rod portion 31 facing away from the second rod portion 32 is detachably connected to the base 22, and one end of the third rod portion 33 facing away from the second rod portion 32 is detachably connected to the base 22. The x-direction, the y-direction, and the z-direction are perpendicular to each other.

[0143] Taking the supporting effect of the "凵"-shaped support rod arranged on the side of the first side wall portion 2111 as an example, the upper side of the first side wall portion 2111 is connected to the second rod portion 32, and the second rod portion 32 provides an upward pulling force to the first side wall portion 2111. The front and rear sides of the first side wall portion 2111 are respectively connected to the first rod portion 31 and the third rod portion 33. The first rod portion 31 and the third rod portion 33 provide tension for the first side wall portion 2111 to expand forward and backward. In this way, the support rod keeps the first side wall portion 2111 expanded, thereby improving the load-bearing capacity and anti-deformation ability of the first side wall portion 2111.

[0144] Furthermore, the first rod portion 31 and the third rod portion 33 extend downward from the second rod portion 32 , facilitating the connection between the first support rod and the base 22 , thereby improving the installation reliability of the support rod and the supporting effect on the material box 21 .

[0145] Similarly, the supporting effect of the "凵"-shaped support rods provided on the side of the second side wall portion 2112 in this embodiment is the same. For other embodiments, the supporting effect of the "凵"-shaped support rods provided on the side of the third side wall portion 2113 and the fourth side wall portion 2114 is similar.

[0146] In other embodiments, the first rod portion 31 and the third rod portion 33 may not be connected to the base 22 .

[0147] In other embodiments, the support member 30 of the spreading device 20 may also be disposed on the third side wall portion 2113 or the fourth side wall portion 2114 , and the second rod portion 32 may be configured to extend along the x-direction.

[0148] In other embodiments, the support rod may also be a structure of other shapes, such as a straight rod structure, a "V-shaped" structure, an arc-shaped structure, a circular structure, a wavy structure, etc.

[0149] Please refer to Figures 12 to 14 In one embodiment of the spreading device 20 of the present application, on the basis of adopting the method of the above embodiment to arrange the support member 30, the support member 30 is arranged on the side of the material box 21 away from the base 22, that is, the support member 30 is arranged horizontally above the material box 21:

[0150] The material box 21 includes a side portion 211 connected at its end to define the storage space 2101 via its inner walls. The side portion 211 has a top and a bottom, respectively, at opposite ends of the spreading device 20z direction. The bottom is connected to the base 22. The side portion 211 is a foldable structure that can be folded along the z-direction. The side portion 211 includes a first side wall 2111 and a second side wall 2112, which are opposite to each other in the x-direction.

[0151] When the spreading device 20 is in the use state, the support member 30 is arranged on the side of the box side portion 211 away from the base 22, that is, the support member 30 is located at the top of the box side portion 211, and the support member 30 is detachably connected to the first side wall portion 2111, and the support member 30 is detachably connected to the second side wall portion 2112. The support member 30 is also used to connect to the loading platform 11 of the loading device 10, and the support member 30 is used to limit the folding of the material box 21 along the z direction to prompt the material box 21 to remain in an open state.

[0152] When the spreading device 20 is in the stored state, the support member 30 is disconnected from the box side portion 211 .

[0153] like Figure 2As shown, when the spreading device 20 is in use, the material box 21, base 22, and spreader 23 are arranged from top to bottom. Material is contained within the material box 21, and under the action of gravity, the material exerts pressure on the box side portion 211. In this embodiment, when the spreading device 20 is in use, a support member 30 is disposed at the top of the box side portion 211 and is connected to the box side portion 211. The support member 30 applies an upward pull to the box side portion 211 via the first side wall 2111 and the second side wall 2112, thereby reinforcing the structure of the box side portion 211 and increasing the material weight that the material box 21 can bear. Furthermore, the support member 30 prevents the material box 21 from collapsing in the z-direction under the pressure of the material. In other words, the support member 30 disposed at the top of the box side portion 211 serves to both enhance the strength of the material box 21 and prevent it from collapsing, thereby maintaining the open position. In this way, the spreading device 20 in this embodiment can not only reduce the packaging volume by folding the material box 21 , but also ensure that the spreading device 20 performs a stable and reliable spreading operation through the support member 30 .

[0154] In this embodiment, since the support member 30 is provided on the top of the material box 21 and the support member 30 and the material box 21 are detachable, the support member 30 is configured to be fixedly connected to the load platform 11, and the fixed connection can be achieved by but not limited to riveting, welding, etc.

[0155] Please continue to refer to Figures 12 to 14 The support member 30 is configured as follows to improve the supporting effect of the support member 30 provided on the top of the box side portion 211:

[0156] The support member 30 is a support rod, which includes a first rod portion 31, a second rod portion 32 and a third rod portion 33 connected in sequence. The first rod portion 31 and the third rod portion 33 are bent and extended to the same side relative to the second rod portion 32. The support rod is a "凵"-shaped structure or a "U"-shaped structure.

[0157] The box side portion 211 includes a first side wall portion 2111 and a second side wall portion 2112 that are opposite to each other in the x-direction, and also includes a third side wall portion 2113 and a fourth side wall portion 2114 that are opposite to each other in the y-direction. The first side wall portion 2111, the third side wall portion 2113, the second side wall portion 2112, and the fourth side wall portion 2114 are connected in sequence, and the fourth side wall portion 2114 is connected to the first side wall portion 2111 to form the box side portion 211, which is open at the top and bottom.

[0158] The spreading device 20 includes at least two supports 30 arranged on the upper side of the box side portion 211 and arranged in the x direction. One support 30 is used to connect with the first side wall portion 2111, and the other side wall portion is used to connect with the second side wall portion 2112.

[0159] When the spreading device 20 is in use, the opening of the bent support rod faces the center, the second rod portion 32 extends in the y-direction, and the first rod portion 31 and the third rod portion 33 both extend in the x-direction. The spreading device 20 includes at least two support members 30: one support member 30 has a second rod portion 32 detachably connected to the first sidewall portion 2111, and the first rod portion 31 and the third rod portion 33 extend from the second rod portion 32 toward the second sidewall portion 2112. The other support member 30 has a second rod portion 32 detachably connected to the second sidewall portion 2112, and the first rod portion 31 and the third rod portion 33 extend from the second rod portion 32 toward the first sidewall portion 2111. The first rod portion 31 is connected to the load platform 11, and the third rod portion 33 is connected to the load platform 11.

[0160] The x direction, the y direction, and the z direction are perpendicular to each other.

[0161] Taking the supporting effect of the "凵"-shaped support rod lateral to the first side wall portion 2111 as an example, the upper side of the first side wall portion 2111 is connected to the second rod portion 32. The first rod portion 31 and the second rod portion 32 of the support rod are both connected to the load platform 11. The second rod portion 32 provides an upward pulling force on the first side wall portion 2111. In this way, the support rod keeps the first side wall portion 2111 extended, improving the load-bearing capacity and deformation resistance of the first side wall portion 2111.

[0162] Similarly, the supporting effect of the "凵"-shaped support rods provided on the side of the second side wall portion 2112 in this embodiment is the same. For other embodiments, the supporting effect of the "凵"-shaped support rods provided on the side of the third side wall portion 2113 and the fourth side wall portion 2114 is similar.

[0163] In this embodiment, on the basis that the first side wall portion 2111 and the second side wall portion 2112 are respectively connected to the support member 30, a hanging structure for detachably connecting to the load platform 11 is provided on the third side wall portion 2113 and the fourth side wall portion 2114. The hanging structure can be Figure 12 、 Figure 14 The hook or hanging hole in the hanging structure can also be Figure 7 、 Figure 8 The flexible connecting member 241, the male connecting structure 242 and the female connecting structure 243 are combined to detachably mount the material box 21 on the load platform 11 by tightening the connection. Figure 1 The left and right side walls of the material box 21 are supported by support members 30 to ensure strength, and the front and rear sides are hung on the load platform 11 to ensure strength, thereby improving the reliability of the entire material box 21 in use. The overall structural layout is reasonable and the material box 21 is stable in force.

[0164] In other embodiments, the support member 30 of the spreading device 20 may also be configured to extend along the y-direction with the third sidewall portion 2113 or the fourth sidewall portion 2114 , and the second rod portion 32 may be configured to extend along the y-direction, and the first rod portion 31 and the third rod portion 33 may be configured to extend along the x-direction.

[0165] For the spreading mechanism in which the support member 30 is arranged on the side of the material box 21, the structure of the support member 30 and the sleeve member 40 are configured as follows:

[0166] The support member 30 is a support rod. The spreading device 20 includes a plurality of socket members 40. The socket members 40 are connected to the box side portion 211 to form socket holes 401 inside the socket members 40 or between the socket members 40 and the material box 21.

[0167] When the spreading device 20 is in the use state, the support rod passes through the sleeve hole 401 to be connected to the material box 21. When the support rod needs to be disassembled, the support rod can be pulled out from the sleeve hole 401.

[0168] In this embodiment, the material box 21 is a flexible box body, and the sleeve 40 is a flexible belt, which reduces the weight of the spreading device 20 and easily provides a sleeve hole 401 for the support rod to pass through.

[0169] In other embodiments, the sleeve 40 may also be a plastic sheet, etc.

[0170] In this embodiment, for a spreading device 20 with a support rod disposed laterally or at the top of the box side 211, to facilitate removal of the bent support rod, at least one socket 40 disposed on the box side 211 is configured as an openable socket 40. One or more sockets 40 are disposed on the first sidewall 2111, and one or more sockets 40 are disposed on the second sidewall 2112. At least one of the sockets 40 disposed on the first sidewall 2111 is openable, and at least one of the sockets 40 disposed on the second sidewall 2112 is openable. The openable sockets 40 include opposing first and second sides. The first side is connected to the box side 211; the second side is either detachably connected to the box side 211 or detachably connected to the first side. Opening the second side opens the socket hole 401, thereby allowing removal of the support rod.

[0171] For the spreading device 20 provided with a support rod laterally arranged on the side portion 211 of the box, the installation and removal of the bent support rod and the side wall portion are achieved in the following manner:

[0172] The spreading device 20 includes at least three sockets 40 connected to the first side wall 2111 and at least three sockets 40 connected to the second side wall 2112. The first rod 31 passes through the rear socket hole 401, the second rod 32 passes through the top socket hole 401, and the third rod 33 passes through the front socket hole 401, thereby achieving a removable connection between the support rod and the first side wall 2111 or the second side wall 2112. The top socket 40 is openable. To install the support rod, the first rod 31 and the third rod 33 are inserted into the socket holes 401 on both sides, and then the top socket 40 is looped around the second rod 32 to engage. To remove the support rod, the top socket 40 is opened and the support rod is pulled out. This configuration of the sockets 40 allows for quick removal and installation of the support rod from the box side 211.

[0173] The following is an explanation of the coordination between the various components of the spreading mechanism when it is in use and when it is stored:

[0174] Figure 1 In the embodiment, the spreading mechanism is in use, and the support member 30 is provided on the top of the material box 21:

[0175] The loading device 10 comprises a loading platform 11 and a support frame 12. The loading platform 11 serves as a loading frame. The support frame 12 includes legs mounted on either side of the loading platform 11. The tops of the legs are removably attached to the loading platform 11 via frame fasteners 13 and screws. A spreading device 20 is positioned below the loading platform 11. The third and fourth sidewalls 2113 and 2114 of the material box 21 are mounted on the loading platform 11. The first and second sidewalls 2111 and 2112 of the material box 21 are connected to the support member 30, which is riveted to the loading platform 11. The base 22 is fastened to the legs via a snap-fit ​​mechanism 25.

[0176] When packing the spreading mechanism, it is necessary to disassemble the frame fixing member 13, release the hook of the material box 21 and the loading platform 11, open the buckle structure 25, and fold the material box 21. Figure 2 The spreader mechanism is arranged in a simple, modular fashion: first, the load platform 11 and support 30 are integrated; second, the folded material box 21; third, the base 22 and spreader 23 are integrated; and fourth, the two legs. The legs can be placed horizontally. This spreader mechanism features these four components, which are connected by quick-release assemblies for easy assembly and disassembly. This creates a more streamlined storage layout and effectively reduces storage space.

[0177] The various parts can be stacked and turned according to packaging needs.

[0178] The following provides another explanation of the coordination relationship between the various components of the spreading mechanism when it is in use and when it is stored:

[0179] Figure 12 In the embodiment, the spreading mechanism is in use, and the support member 30 is arranged on the side of the material box 21:

[0180] The loading device 10 comprises a loading platform 11 and a support frame 12. The loading platform 11 is a loading frame. The support frame 12 includes legs mounted on either side of the loading platform 11. The tops of the legs are removably attached to the loading platform 11 via frame fasteners 13 and screws. The spreading device 20 is located below the loading platform 11. The third and fourth side walls 2113 and 2114 of the material box 21 are mounted to the loading platform 11 via flexible connecting straps, which are tightened and snapped together. The first and second side walls 2111 and 2112 of the material box 21 are connected to the support 30, which is then plugged into an adapter. The adapter is then snapped to the base 22 via a bayonet. The base 22 is snapped to the legs via a snap mechanism 25.

[0181] To pack the spreader, disassemble the frame fixture 13, unhook the material box 21 from the loading platform 11, open the latch structure 25, remove the latch, remove the support member 30, and fold the material box 21. Then, rearrange the components as follows: first, the loading platform 11; second, the folded material box 21; third, the base 22 and spreader 23 integrated; fourth, the two legs; and fifth, the support member 30. The legs can be placed horizontally. This spreader is configured with these five components, which are connected by quick-release assemblies for assembly and disassembly. This provides a more convenient storage layout and effectively reduces storage space.

[0182] The components can be stacked and rotated according to packaging requirements.

[0183] The spreading mechanism of the present application not only reduces the occupied space when in the storage state, but also has the advantage of reliable structure when in use: when the spreading mechanism is in use, the installation of the spreading device 20 is stable and reliable, which can ensure the reliable implementation of the spreading operation.

[0184] The loading device 10 of the present application further includes a meter 90 disposed on top of the loading platform 11 for extending into the interior of the material box 21 to detect the remaining material. The material box 21 further includes a cover 213 disposed on top of the box side portion 211. The cover 213 is configured to partially or fully cover the upper opening of the storage space 2101.

[0185] In one embodiment of the unmanned aerial vehicle of the present application, the unmanned aerial vehicle includes a spreading mechanism and a flying body, and the connection between the spreading mechanism and the flying body is achieved by connecting the load platform 11 to the flying body.

[0186] In the description herein, it should be understood that terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not 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" and "second" are used solely for descriptive purposes and have no special meaning.

[0187] In this specification, reference to terms such as "one embodiment" or "example" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0188] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0189] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A spreading mechanism, characterized in that: It comprises a spreading device (20) and a loading device (10); The spreading device comprises: A material box (21) has an open state and a folded state; when the material box (21) is in the open state, a receiving space (2101) is formed inside; the material box (21) can be folded under force to adjust from the open state to the folded state, thereby reducing the distance between the opposite ends or the opposite sides of the material box (21); The base (22) has a first material transfer space formed therein; The spreader (23) forms a second material transfer space inside. The sowing device (20) has a use state and a storage state; when the sowing device (20) is in the use state, the material box (21) is in the open state, the material box (21) is connected to the base (22), the base (22) is connected to the spreader (23), and the accommodating space (2101), the first material transfer space, and the second material transfer space are in communication; when the sowing device (20) is in the storage state, the material box (21) is in the folded state; The loading device (10) comprises a loading platform (11) and a support frame (12); The spreading mechanism has a use state and a storage state. When the spreading mechanism is in the use state, the load platform (11) is connected to the support frame (12), and an installation space is formed between the load platform (11) and the support frame (12). The spreading device (20) is arranged in the installation space. The spreading device (20) is arranged below the load platform (11). The material box (21) is in the open state, the material box (21) is detachably connected to the load platform (11), and the base (22) is detachably connected to the support frame (12). When the spreading mechanism is in the storage state, the material box (21) is in the folded state.

2. The spreading mechanism according to claim 1, characterized in that: The material box (21) is a flexible box.

3. The spreading mechanism according to claim 1, characterized in that: The material box (21) includes a box top and a box bottom that are arranged opposite to each other; when the spreading device (20) is in the use state, the box bottom is connected to the base (22); The distance between the top end and the bottom end of the box is the box height, and the box height when the material box (21) is in the folded state is smaller than the box height when the material box (21) is in the opened state.

4. The spreading mechanism according to any one of claims 1 to 3, characterized in that: Also included is a support member (30); When the spreading device (20) is in the use state, the support member (30) is detachably connected to the material box (21), and the support member (30) is used to limit the folding of the material box (21); when the spreading device (20) is in the storage state, the support member (30) is disconnected from the material box (21), and the material box (21) is in the folded state.

5. The spreading mechanism according to claim 4, characterized in that: The material box (21) includes a box side portion (211), the box side portions (211) are connected end to end to define the accommodating space (2101) through the inner wall of the box side portion (211); the end of the box side portion (211) is connected to the base (22); When the sowing device (20) is in the use state, the support member (30) is arranged on the side of the box side (211) away from the accommodating space (2101) or is arranged in the accommodating space (2101), and the support member (30) is detachably connected to the box side (211); when the sowing device (20) is in the storage state, the support member (30) is disconnected from the box side (211).

6. The spreading mechanism according to claim 5, characterized in that: The support member (30) is a support rod, and the support rod includes a first rod portion (31), a second rod portion (32), and a third rod portion (33) connected in sequence; the material box (21), the base (22), and the spreader (23) are arranged along the z direction; When the spreading device (20) is in the use state, the second rod portion (32) extends along the x-direction or the y-direction, the first rod portion (31) and the third rod portion (33) both extend along the z-direction for detachable connection with the base (22), and one or more of the first rod portion (31), the second rod portion (32), and the third rod portion (33) are detachably connected to the box side portion (211); the x-direction, the y-direction, and the z-direction are perpendicular to each other.

7. The spreading mechanism according to claim 4, characterized in that: The material box (21) includes a box side portion (211), the box side portions (211) are connected end to end to define the accommodating space (2101) through the inner wall of the box side portion (211); the end of the box side portion (211) is connected to the base (22); the box side portion (211) includes a first side wall portion (2111) and a second side wall portion (2112) opposite to each other in the x direction; When the spreading device (20) is in the use state, the support member (30) is arranged on the side of the box side portion (211) away from the base (22), the support member (30) is detachably connected to the first side wall portion (2111), the support member (30) is detachably connected to the second side wall portion (2112), and the support member (30) is used to be connected to the load device (10); when the spreading device (20) is in the storage state, the support member (30) is disconnected from the box side portion (211).

8. The spreading mechanism according to claim 7, characterized in that: The support member (30) is a support rod; the support rod comprises a first rod portion (31), a second rod portion (32), and a third rod portion (33) connected in sequence; When the spreading device (20) is in the use state, the second rod portion (32) extends along the y direction or the x direction, the first rod portion (31) and the second rod portion (32) both extend along the x direction, the second rod portion (32) is detachably connected to the box side portion (211), the first rod portion (31) is used to connect to the load platform (11), and the third rod portion (33) is used to connect to the load platform (11).

9. The spreading mechanism according to claim 5, characterized in that: When the sowing device (20) is in the use state, the support member (30) is detachably connected to the base (22); when the sowing device (20) is in the storage state, the support member (30) is disconnected from the base (22).

10. The spreading mechanism according to claim 9, characterized in that: It also includes an adapter and a bayonet; the support member (30) is a support rod, and the support rod is connected to the adapter; The adapter and / or the base (22) is provided with a pin hole (2221), and the bayonet passes through the pin hole (2221) so that the adapter is detachably connected to the base (22), thereby detachably connecting the support rod to the base (22).

11. The spreading mechanism according to claim 10, characterized in that: The adapter is provided with a mounting hole; the base (22) includes a seat body and a mounting post (222) provided on the seat body, and the pin hole (2221) is provided on the mounting post (222); The mounting post (222) passes through the mounting hole, and the bayonet passes through the pin hole (2221). The bayonet is located on the side of the adapter away from the base body. The bayonet restricts the adapter from being disengaged from the mounting post (222), so that the adapter is detachably connected to the base (22).

12. The spreading mechanism according to claim 10, characterized in that: The bayonet pin is a spring pin.

13. The spreading mechanism according to claim 10, characterized in that: Also includes a socket (40); The socket member (40) is connected to the box side portion (211), and a socket hole (401) is provided inside the socket member (40) or a socket hole (401) is formed between the socket member (40) and the material box (21); the support member (30) passes through the socket hole (401) to be detachably connected to the material box (21); the adapter includes a plug-in portion; The adapter is rotatably connected to the base (22); the base (22) includes a base body, and the base body is provided with a limiting surface (223). When the adapter abuts against the limiting surface (223), the plug-in portion faces the socket hole (401), so that the support rod can be plugged into the plug-in portion after passing through the socket hole (401).

14. The spreading mechanism according to claim 5, characterized in that: The box side portion (211) comprises a first side wall portion (2111) and a second side wall portion (2112) that are opposite to each other in the x direction; the first side wall portion (2111) is provided with one or more socket connectors (40), and the second side wall portion (2112) is provided with one or more socket connectors (40); At least one of the sockets (40) provided on the first side wall portion (2111) is an openable socket (40), and at least one of the sockets (40) provided on the second side wall portion (2112) is an openable socket (40); the openable socket (40) includes a first side edge and a second side edge relative to each other, the first side edge being connected to the box side portion (211); the second side edge being detachably connected to the box side portion (211), or the second side edge being detachably connected to the first side edge.

15. An unmanned aerial vehicle, characterized in that: include: The spreading mechanism according to any one of claims 1 to 14; The aircraft body is connected to the load platform (11).

Images