Hoisting device and unmanned aerial vehicle equipment

Abstract

The utility model relates to unmanned plane equipment technical field provides a kind of hoisting device and unmanned plane equipment, wherein, hoisting device includes connecting mechanism and hoisting mechanism, connecting mechanism is used to connect the hoisting carrying portion of unmanned plane;Hoisting mechanism includes pedestal and rotator, pedestal is connected with connecting mechanism, the middle part of rotator is rotatably connected with pedestal, the rotation axis of rotator relative to pedestal is arranged along horizontal direction, one end of rotator is provided with hook portion, hook portion is used to hang the lifting ring portion of target goods, rotator can rotate between unloading position and mounting position;Rotator has the tendency of rotating to unloading position under the torque effect of its own gravity, and the rotating direction of rotator is opposite to the opening direction of hook portion.Such arrangement, without manual operation hook, can automatically complete unloading, solve the problem that in related art, hoisting and transporting task needs manual operation hook to complete unloading.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) equipment technology, and in particular to a hoisting device and UAV equipment. Background Technology

[0002] With the rapid development of drone technology, drone hoisting and transportation, with its flexibility and efficiency, has been increasingly widely used in scenarios such as logistics distribution, material delivery, and the power industry.

[0003] Currently, when drones perform lifting and transportation tasks, cargo is typically mounted using hook structures. After the drone carrying the cargo arrives at the target location, the unloading process often requires intervention from ground personnel. That is, ground personnel must remove the cargo from the hook to complete the entire transportation process. Manual operation reduces overall operational efficiency, and in special or dangerous environments such as disaster relief, manual on-site unloading also poses safety risks.

[0004] Therefore, how to solve the problem that manual operation of the hook is required to complete the unloading when performing hoisting and transportation tasks in related technologies has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0005] This utility model provides a hoisting device and a drone equipment to solve the defect in related technologies that require manual operation of the hook to complete the unloading when performing hoisting and transportation tasks.

[0006] This utility model provides a hoisting device, including: A connecting mechanism for connecting the hoisting and supporting parts of the drone; A hoisting mechanism includes a base and a rotating body. The base is connected to the connecting mechanism. The middle part of the rotating body is rotatably connected to the base. The rotating body is arranged in a horizontal direction relative to the rotation axis of the base. One end of the rotating body is provided with a hook part, which is used to hang the lifting ring part of the target goods. The rotating body can rotate between the unloading position and the loading position. The rotating body, under the torque generated by its own gravity, tends to rotate toward the unloading position, and the rotation direction of the rotating body is opposite to the opening direction of the hook.

[0007] According to the hoisting device provided by this utility model, the rotating body includes: The first segment and the second segment are located on opposite sides of the rotation axis. One end of the first segment is connected to the end of the second segment, and the other end of the first segment extends away from the second segment. The hook is located at the end of the first segment away from the second segment. The mass of the second segment is greater than the sum of the mass of the first segment and the mass of the hook.

[0008] According to the present invention, the axis of the first section is set at an angle to the axis of the second section, and the second section and the hook are located on the same side of the axis of the first section.

[0009] According to the present invention, a lifting device is provided on the base, and the limiting part is located on the side of the rotation axis close to the connecting mechanism; When the rotating body is in the mounting position, the limiting part can restrict the rotating body from rotating in the same direction as the opening of the hook part; Furthermore, when the rotating body is in the unloading position, the limiting part can restrict the rotating body from rotating in the opposite direction to the opening of the hook part.

[0010] According to the hoisting device provided by this utility model, a pair of rotating bodies are provided, the rotation axes of the pair of rotating bodies are coincident with those of the base, and the torque generated by the gravity of the pair of rotating bodies is in opposite directions; When both of the rotating bodies are in the mounting position, the pair of rotating bodies are symmetrical about the vertical plane containing the axis of rotation, and either of the pair of rotating bodies can prevent the lifting ring from disengaging from the hook of the other.

[0011] According to the hoisting device provided by this utility model, the hook part is semi-circular arc-shaped, one end of the hook part is connected to the end of the rotating body, and the other end of the hook part is a free end; When the pair of rotating bodies are in the mounting position, the centers of the hook portions of the pair of rotating bodies coincide, and the centers of the hook portions are located in the vertical plane containing the rotation axis.

[0012] According to the hoisting device provided by this utility model, it further includes: A buffer mechanism is disposed between the base and the connecting mechanism, and the buffer mechanism is used to mitigate the impact on the target cargo when it lands.

[0013] According to the hoisting device provided by this utility model, the buffer mechanism includes: The mounting bracket is connected to the connecting mechanism; A buffer frame is slidably connected to the mounting frame, and the sliding direction of the buffer frame relative to the mounting frame is vertical. An elastic element is disposed between the buffer frame and the mounting frame, and the elastic element exerts a force on the buffer frame in a direction close to the connecting mechanism.

[0014] According to the present invention, a hoisting device is provided, the mounting frame comprising: A support rod, one end of which is connected to the connecting mechanism, and the axis of the support rod is set in the vertical direction; The first support plate is fixedly installed at the other end of the support rod; The buffer frame includes: The second support plate is disposed on the side of the first support plate near the connecting mechanism, and the support rod passes through the second support plate and is slidably engaged with the second support plate; A guide rod is disposed on the side of the second support plate near the first support plate. The axis of the guide rod is arranged in a vertical direction. One end of the guide rod is fixedly connected to the second support plate. The guide rod passes through the first support plate and slides with the first support plate. The base is fixedly connected to the other end of the guide rod. The elastic element is a helical spring, which is sleeved on the outside of the guide rod, with its two ends abutting against the first support plate and the second support plate, respectively.

[0015] This utility model also provides a drone device, including the above-mentioned hoisting device.

[0016] The lifting device provided by this utility model includes a connecting mechanism and a lifting mechanism. The connecting mechanism is used to connect the lifting load of a drone to realize the installation of the lifting device on the drone. The lifting mechanism includes a base and a rotating body. The base is connected to the connecting mechanism to realize the connection between the lifting mechanism and the connecting mechanism. The lifting mechanism is used to lift the target cargo. The middle part of the rotating body is rotatably connected to the base, and the rotation axis of the rotating body relative to the base is arranged in the horizontal direction. One end of the rotating body is provided with a hook part, which is used to hang the lifting ring part on the target cargo. The rotating body can rotate between the unloading position and the mounting position. When the rotating body rotates to the mounting position, the lifting ring part on the target cargo can be hung on the hook part, and the hook part can bear the target cargo. When the rotating body rotates to the unloading position, the lifting ring part on the target cargo cannot be hung on the hook part. Under the torque generated by its own weight, the rotating body tends to rotate towards the unloading position. The direction of rotation is opposite to the opening of the hook, ensuring that the hook's opening allows separation from the lifting ring of the target cargo as the rotating body rotates towards the unloading position, thus achieving automatic unloading. With this configuration, the lifting device provided by this invention is installed on the lifting carrier of a drone. The lifting ring of the target cargo is suspended from the hook of the lifting device, allowing the drone to lift the target cargo. After the target cargo is lifted to the target location, it is lowered by the drone. When the target cargo lands on the ground, it is completely supported by the ground. The lifting ring no longer exerts force on the hook of the rotating body. Under the torque generated by its own weight, the rotating body rotates in the opposite direction to the opening of the hook, gradually separating the hook from the lifting ring of the target cargo, thus releasing the target cargo. Unloading is completed automatically without manual operation of the hook, solving the problem in related technologies where manual operation of the hook is required for unloading during lifting and transportation tasks.

[0017] Furthermore, the drone equipment provided by this utility model also possesses the various advantages described above due to the hoisting device described above. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the hoisting device provided by this utility model.

[0020] Figure 2This is a front view of the hoisting device provided by this utility model.

[0021] Figure 3 This is a side view of the hoisting device provided by this utility model.

[0022] Figure 4 This utility model provides a hoisting device with a buffer mechanism, and the hoisting mechanism is shown in the comparison diagram of its state and height position when the rotating body is in the loading position and the unloading position.

[0023] Figure 5 This is a structural diagram of the hoisting device provided by this utility model when hoisting target goods.

[0024] Figure 6 This is a schematic diagram of the lifting device provided by this utility model after releasing the target cargo.

[0025] Figure 7 This is a schematic diagram illustrating the process of the rotating body provided by this utility model rotating from the loading position to the unloading position.

[0026] Figure 8 This is a schematic diagram of the hoisting device provided by this utility model when installed on a drone.

[0027] Figure label: 1. Connecting mechanism; 2. Lifting load-bearing part; 3. Base; 4. Rotating body; 5. Hook part; 6. First section; 7. Second section; 8. Elastic element; 9. Support rod; 10. First support plate; 11. Second support plate; 12. Guide rod; 13. UAV; 14. Connecting plate; 15. Connecting seat; 16. Rope; 17. Target cargo; 18. Lifting ring part. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] The following is combined with Figures 1 to 8 This invention describes the hoisting device.

[0030] like Figures 1 to 8 As shown, the hoisting device provided in this embodiment of the present invention includes a connecting mechanism 1 and a hoisting mechanism.

[0031] Specifically, the connecting mechanism 1 is used to connect the hoisting support part 2 of the UAV 13 to realize the installation of the hoisting device on the UAV 13. Specifically, the landing gear can be selected as the hoisting support part 2 of the UAV 13, so that the connecting mechanism 1 is connected to the landing gear of the UAV 13.

[0032] The lifting mechanism includes a base 3 and a rotating body 4. The base 3 is connected to the connecting mechanism 1 to realize the connection between the lifting mechanism and the connecting mechanism 1. The lifting mechanism is used to lift the target cargo 17.

[0033] The middle part of the rotating body 4 is rotatably connected to the base 3, and the rotation axis of the rotating body 4 relative to the base 3 (hereinafter referred to as the rotation axis) is set in the horizontal direction. A hook part 5 is provided at one end of the rotating body 4, which is used to hang the lifting ring part 18 on the target cargo 17.

[0034] The rotating body 4 can rotate between the unloading position and the loading position. When the rotating body 4 rotates to the loading position, the lifting ring 18 on the target cargo 17 can be hung on the hook 5, and the hook 5 can support the target cargo 17. When the rotating body 4 rotates to the unloading position, the lifting ring 18 on the target cargo 17 cannot be hung on the hook 5.

[0035] Under the torque generated by its own gravity, the rotating body 4 tends to rotate toward the unloading position, and the rotation direction of the rotating body 4 is opposite to the opening direction of the hook part 5, so as to ensure that when the rotating body 4 rotates toward the unloading position, the opening of the hook part 5 allows the hook part 5 to separate from the lifting ring part 18 of the target cargo 17, thereby realizing automatic unloading.

[0036] With this configuration, the hoisting device provided in this embodiment is installed on the hoisting bearing part 2 of the drone 13. The lifting ring part 18 of the target cargo 17 is suspended from the hook part 5 of the hoisting device provided in this embodiment, and the drone 13 can hoist the target cargo 17. After the target cargo 17 is hoisted to the target location, the target cargo 17 is gradually lowered by the gradual descent of the drone 13. When the target cargo 17 lands on the ground at the target location, the target cargo 17 is completely supported by the ground, and the lifting ring part 18 of the target cargo 17 no longer exerts a force on the hook part 5 of the rotating body 4. Under the torque generated by its own weight, the rotating body 4 rotates in the opposite direction to the opening of the hook part 5, which can gradually separate the hook part 5 from the lifting ring part 18 of the target cargo 17, thereby realizing the release of the target cargo 17. Unloading can be completed automatically without manual operation of the hook part, solving the problem in related technologies that require manual operation of the hook to complete unloading when performing hoisting and transportation tasks.

[0037] It should be noted that the torque generated by gravity mentioned above, as well as the torque generated by gravity mentioned below, refers to the torque relative to the axis of rotation.

[0038] When using the lifting device provided in this embodiment to lift goods, it is necessary to ensure that the top of the target goods 17 has a lifting ring 18, or that the top of the container used to hold the target goods 17 has a lifting ring 18. The lifting ring 18 can be a rigid ring structure or a flexible ring structure formed by rope, as long as it ensures that the target goods 17 is on the ground and completely supported by the ground, and that the lifting ring 18 can allow the hook part 5 to rotate under the drive of the rotating body 4.

[0039] It should be noted that the lifting device provided in this embodiment can automatically unload goods, and the unloading process does not require manual operation of the hook part 5. However, the process of connecting the lifting ring part 18 of the target cargo 17 to the hook part 5 of the lifting device requires manual operation. When connecting the lifting ring part 18 of the target cargo 17 to the hook part 5 of the lifting device, the operator manually rotates the rotating body 4 to the mounting position and positions the lifting ring part 18 of the target cargo 17 within the hanging space of the hook part 5. Through the gradual lifting of the drone 13, the lifting device is gradually lifted until the hook part 5 bears at least part of the load of the target cargo 17. Only then can the operator release the hook part 5. At this time, the load of the target cargo 17 on the hook part 5 through the lifting ring part 18 can overcome the torque generated by the weight of the rotating body 4, thereby limiting the rotation of the rotating body 4 and stabilizing the rotating body 4 in the mounting position.

[0040] In this embodiment, the rotating body 4 includes a first segment 6 and a second segment 7. One end of the first segment 6 is connected to the end of the second segment 7, and the other end of the first segment 6 extends away from the second segment 7. The hook portion 5 is disposed at the end of the first segment 6 away from the second segment 7.

[0041] The first section 6 and the second section 7 are located on both sides of the rotation axis, that is, the position where the first section 6 and the second section 7 are connected is used for rotational connection with the base 3.

[0042] The mass of the second segment 7 is greater than the sum of the mass of the first segment 6 and the mass of the hook segment 5. The distance between the center of gravity of the second segment 7 and the axis of rotation is greater than the distance between the center of gravity of the first segment 6 and the axis of rotation, so as to ensure that the torque generated by the gravity of the second segment 7 is greater than the torque generated by the gravity of the first segment 6 and the hook segment 5.

[0043] When the rotating body 4 is in the mounted position, the first section 6 and the hook section 5 are located below the axis of rotation, and the second section 7 is located above the axis of rotation. The force exerted by the target cargo 17 on the hook section 5 can restrict the rotation of the rotating body 4.

[0044] When the target cargo 17 is fully on the ground and the force exerted by the target cargo 17 on the hook part 5 disappears, the torque generated by the gravity of the second section 7 can overcome the torque generated by the gravity of the first section 6 and the torque generated by the gravity of the hook part 5, causing the second section 7 to rotate downward and the first section 6 to drive the hook part 5 to rotate upward. Figure 7 The various states of the rotating body 4 shown from left to right represent intermediate states of the rotating body 4 as it rotates from the loading position to the unloading position.

[0045] In a further embodiment, the axis of the first segment 6 is angled to the axis of the second segment 7, and the second segment 7 and the hook portion 5 are located on the same side of the axis of the first segment 6. When the rotating body 4 is in the mounting position, the first segment 6 and the second segment 7 are distributed on opposite sides of the vertical plane where the rotation axis is located, and the opening of the hook portion 5 faces the side where the second segment 7 is located.

[0046] When the target cargo 17 is fully on the ground and the force exerted by the target cargo 17 on the hook part 5 disappears, the second section 7 gradually rotates downward, and the first section 6 drives the hook part 5 to gradually rotate upward. The opening of the hook part 5 gradually faces downward, thereby gradually releasing the lifting ring part 18 of the target cargo 17.

[0047] The first section 6, the second section 7, and the hook section 5 are connected as an integral structure. Specifically, the first section 6, the second section 7, and the hook section 5 are integrally formed.

[0048] In this embodiment, a limiting part is provided on the base 3, and the limiting part is located on the side of the rotation axis close to the connecting mechanism 1. When the rotating body 4 is in the loading position, the limiting part can restrict the rotating body 4 from rotating in the same direction as the opening of the hook part 5. And when the rotating body 4 is in the unloading position, the limiting part can restrict the rotating body 4 from rotating in the opposite direction to the opening of the hook part 5.

[0049] Thus, the limiting part restricts the rotation range of the rotating body 4. By limiting the extreme position of the rotating body 4 during hoisting, excessive rotation of the rotating body 4 is avoided, ensuring that when the force exerted by the target cargo 17 on the hook part 5 disappears, the rotating body 4 can rotate in the accurate direction so that the opening of the hook part 5 gradually faces downward and smoothly disengages from the lifting ring part 18 of the target cargo 17. By limiting the extreme position of the rotating body 4 during unloading, excessive rotation of the rotating body 4 can be avoided, allowing the rotating body 4 to remain stably in the unloading position and reducing its sway.

[0050] In this embodiment, a pair of rotating bodies 4 are provided, and the rotation axes of the pair of rotating bodies 4 coincide with those of the base 3. When both of the pair of rotating bodies 4 are in the mounting position, the pair of rotating bodies 4 and their hook portions 5 are symmetrical about the vertical plane containing the rotation axis, and the openings of the pair of hook portions 5 are arranged facing each other, and the opening areas of the pair of hook portions 5 are connected, such as... Figure 4As shown. Either of the pair of rotating bodies 4 can prevent the lifting ring 18 from disengaging from the hook 5 of the other. The hooks 5 of the pair of rotating bodies 4 cooperate to prevent the lifting ring 18 of the target cargo 17 from accidentally disengaging, thus ensuring lifting safety.

[0051] The rotation of the pair of rotating bodies 4 relative to the base 3 is relatively independent and does not affect each other. The torque generated by the gravity of the pair of rotating bodies 4 is in opposite directions. When the pair of rotating bodies 4 rotate from the loading position to the unloading position, the pair of hook parts 5 move away from each other, thereby simultaneously releasing the lifting ring part 18 of the target cargo 17.

[0052] A pair of rotating bodies 4 are rotatably connected to the base 3 via a hinge shaft. A backstop pin is provided at the end of the hinge shaft to prevent the hinge shaft from accidentally falling off.

[0053] In this embodiment, the hook portion 5 is configured in a semi-circular arc shape. One end of the hook portion 5 is connected to the end of the rotating body 4, and the other end of the hook portion 5 is a free end, used for the lifting ring portion 18 of the target goods 17 to enter and exit. The semi-circular arc-shaped hook portion 5 has a smooth inner wall, which facilitates the relative movement of the hook portion 5 and the lifting ring portion 18 and reduces wear on the lifting ring portion 18.

[0054] When a pair of rotating bodies 4 are in the mounting position, the centers of the hook portions 5 of the pair of rotating bodies 4 coincide, and the centers of the hook portions 5 are located in the vertical plane where the rotation axis is located.

[0055] When the pair of rotating bodies 4 are in the mounting position, the two semi-circular hook portions 5 together form a nearly enclosed lifting space, which can reliably accommodate the lifting ring portion 18 of the target cargo 17, preventing the lifting ring portion 18 from accidentally coming off due to shaking or other reasons during transportation, thus improving the safety and reliability of the lifting. At the same time, since the centers of the corresponding hook portions 5 coincide and are located in the vertical plane of the rotation axis, it can be ensured that the weight of the target cargo 17 is evenly and symmetrically applied to the two hook portions 5 through the lifting ring portion 18, so that the load center is located directly below the lifting device, which helps to maintain balance and stability during the lifting process and avoids unexpected rotation of the rotating body 4 due to uneven loading.

[0056] In this embodiment of the utility model, the hoisting device further includes a buffer mechanism, which is disposed between the base 3 and the connecting mechanism 1. The buffer mechanism is used to mitigate the impact on the target cargo 17 when it lands.

[0057] When the drone 13 carrying the target cargo 17 lands, after the target cargo 17 touches the ground, the drone 13 may still have a slight descent. At this time, the buffer mechanism can provide a vertical buffer stroke to absorb the impact energy generated by the drone 13's continued descent. This buffering process effectively avoids a hard collision between the target cargo 17 and the ground or the drone 13, protecting not only the target cargo 17 from damage but also the safety of the drone 13's own structure, significantly improving the stability and safety of the entire landing process.

[0058] Meanwhile, the smooth transition of the buffer mechanism ensures that the load acting on the hook part 5 is removed smoothly, creating favorable conditions for the rotating body 4 to rotate smoothly to the unloading position by its own gravity. This prevents the hook part 5 from jamming with the lifting ring part 18 or from failing to disengage properly due to sudden impact, thereby greatly enhancing the stability and reliability of the automatic unloading process.

[0059] The target cargo 17 mentioned above may be, but is not limited to, a precision radar or a fragile photovoltaic panel. When it is lifted using the lifting device provided in this embodiment, it can be cushioned and protected to reduce the risk of damage.

[0060] In this embodiment, the buffer mechanism includes a mounting frame, a buffer frame, and an elastic element 8.

[0061] The mounting frame is connected to the connecting mechanism 1, and the buffer frame is slidably connected to the mounting frame. The sliding direction of the buffer frame relative to the mounting frame is vertical. When the target cargo 17 lands, the buffer frame can generate a vertical relative displacement relative to the mounting frame, thereby forming an effective buffer stroke to absorb and dissipate the impact energy generated by the continued descent of the UAV 13, avoiding potential damage to the target cargo 17 or the UAV 13 body due to rigid connection.

[0062] The elastic element 8 is disposed between the buffer frame and the mounting frame, and the elastic element 8 exerts a force on the buffer frame in the direction close to the connecting mechanism 1.

[0063] After the target cargo 17 is hoisted, it applies pressure to the elastic element 8 via the buffer frame, causing the elastic element 8 to compress and store potential energy. When the target cargo 17 lands, the elastic element 8 gradually releases energy and generates a counterforce. The load of the target cargo 17 is gradually applied to the ground, providing a certain degree of cushioning. This not only further ensures the smooth landing of the target cargo 17 but also prevents a sudden loss of load from severely affecting the flight attitude of the UAV 13, greatly enhancing the stability and safety of the entire automated unloading process.

[0064] In this embodiment, the mounting frame includes a support rod 9 and a first support plate 10, which serve as the fixed part and the main load-bearing body of the entire buffer mechanism.

[0065] One end of the support rod 9 is connected to the connecting mechanism 1, and the axis of the support rod 9 is set in the vertical direction. The first support plate 10 is fixedly set at the other end of the support rod 9, providing a guiding reference for the sliding of the buffer frame.

[0066] The buffer frame includes a second support plate 11 and a guide rod 12, which are movable relative to the mounting frame in the buffer mechanism, and are used to generate displacement when the target cargo 17 hits the ground so that the elastic element 8 absorbs energy.

[0067] The second support plate 11 is disposed on the side of the first support plate 10 near the connecting mechanism 1. The support rod 9 passes through the second support plate 11 and slides with the second support plate 11. Through the sliding engagement, the buffer frame can generate a vertical relative displacement with respect to the mounting frame, thereby forming a buffer stroke, effectively absorbing and mitigating the impact force generated when the target cargo 17 lands, and avoiding damage to the target cargo 17 or the drone 13 body that may be caused by rigid connection.

[0068] The guide rod 12 is disposed on the side of the second support plate 11 near the first support plate 10. The axis of the guide rod 12 is arranged in the vertical direction. One end of the guide rod 12 is fixedly connected to the second support plate 11. The guide rod 12 passes through the first support plate 10 and slides with the first support plate 10. The base 3 is fixedly connected to the other end of the guide rod 12.

[0069] The sliding engagement between the guide rod 12 and the first support plate 10 can precisely guide the sliding process of the buffer frame, ensuring that the buffer frame can move smoothly in the vertical direction when absorbing impact energy, preventing it from tilting or getting stuck, thereby improving the stability and safety of the entire landing process.

[0070] The base 3 is fixedly connected to the guide rod 12, which directly transmits the impact force generated when the target cargo 17 lands to the buffer frame, thereby realizing the buffer function.

[0071] Two guide rods 12 are provided, with their axes parallel. The support rod 9 is located between the two guide rods 12. To facilitate the connection between the base 3 and the guide rods 12, a connecting plate 14 is provided at the end of each guide rod 12 away from the second support plate 11. The two guide rods 12 are fixed relative to the connecting plate 14. The base 3 is connected to the connecting plate 14.

[0072] The connection structure between the guide rod 12 and the connecting plate 14, as well as the connection structure between the base 3 and the connecting plate 14, can be achieved by bolt connection, which facilitates disassembly and maintenance.

[0073] The elastic element 8 is a helical spring, specifically a compression spring. The helical spring is sleeved on the outside of the guide rod 12, and its two ends abut against the first support plate 10 and the second support plate 11, respectively.

[0074] With its compact structure and space-saving design, the guide rod 12 can support and guide the helical spring, effectively preventing the helical spring from becoming unstable, bending, or shifting during compression. This ensures that the direction of the spring force is always consistent with the direction of the buffering motion, improving the stability and reliability of the buffering process.

[0075] In some embodiments, the connecting mechanism 1 may be, but is not limited to, a connecting ring, with the end of the support rod 9 away from the first support plate 10 connected to the connecting ring. Two crossed and tensioned ropes 16 are provided on the landing gear of the UAV 13, and both ropes 16 pass through the connecting ring simultaneously. The inner diameter of the connecting ring is as close as possible to the outer dimensions of the intersection of the two ropes 16. The two crossed and tensioned ropes 16 can limit the displacement of the connecting ring and ensure the stability of the connecting ring's position.

[0076] In some embodiments, the connection structure further includes a connecting seat 15, to which a connecting ring is connected. Multiple tensioned ropes 16 are arranged between the connecting seat 15 and the landing gear of the drone 13, with the ropes 16 spaced apart circumferentially along the connecting seat 15. Figure 8 As shown. By combining the tension of each rope 16, the position of the connecting seat 15 can be ensured to be stable, thereby ensuring the position of the connecting ring is stable.

[0077] In some cases, there are many tall buildings or plants around the target location, which does not allow the drone 13 to land at a low position. In order to ensure that the hoisting mechanism can unload smoothly, a rope needs to be added between the connecting ring and the connecting seat 15. When the drone 13 lands at a high position, the target cargo 17 can touch the ground, releasing the force of the target cargo 17 on the hook part 5. This ensures that the rotating body 4 can rotate towards the unloading position under the torque generated by its own gravity.

[0078] In summary, the hoisting device provided in this embodiment of the present invention, through its ingenious mechanical structure design, achieves automatic unloading of the target cargo 17 after it lands, and acts as a buffer when the target cargo 17 contacts the ground, protecting it from damage. Furthermore, the hoisting device has the advantages of simple structure, few parts, low manufacturing cost, and high reliability, and can meet the lightweight and simplified requirements of hoisting by the UAV 13.

[0079] On the other hand, this embodiment of the present invention also provides a drone device, including the lifting device provided in any of the above embodiments. The lifting device is capable of lifting the target cargo 17 and automatically unloading it when the target cargo 17 lands. Therefore, the drone device provided in this embodiment of the present invention can also achieve automatic unloading, and has the advantages of high efficiency in logistics distribution and material delivery, effectively avoiding the safety risks of manual operation in dangerous environments such as disaster relief. The derivation process of the beneficial effects of the drone device in this embodiment of the present invention is largely similar to the derivation process of the beneficial effects of the lifting device described above, so it will not be repeated here.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hoisting device, characterized in that, include: A connecting mechanism (1) is used to connect the hoisting support part (2) of the UAV (13); The hoisting mechanism includes a base (3) and a rotating body (4). The base (3) is connected to the connecting mechanism (1). The middle part of the rotating body (4) is rotatably connected to the base (3). The rotating body (4) is arranged in a horizontal direction relative to the rotation axis of the base (3). One end of the rotating body (4) is provided with a hook part (5). The hook part (5) is used to hoist the lifting ring part (18) of the target cargo (17). The rotating body (4) can rotate between the unloading position and the loading position. The rotating body (4) tends to rotate toward the unloading position under the torque generated by its own gravity, and the rotation direction of the rotating body (4) is opposite to the opening direction of the hook part (5).

2. The hoisting device according to claim 1, characterized in that, The rotating body (4) includes: The first segment (6) and the second segment (7) are located on both sides of the rotation axis, respectively. One end of the first segment (6) is connected to the end of the second segment (7), and the other end of the first segment (6) extends away from the second segment (7). The hook (5) is provided at the end of the first segment (6) away from the second segment (7). The mass of the second segment (7) is greater than the sum of the mass of the first segment (6) and the mass of the hook (5).

3. The hoisting device according to claim 2, characterized in that, The axis of the first segment (6) is set at an angle to the axis of the second segment (7), and the second segment (7) and the hook (5) are located on the same side of the axis of the first segment (6).

4. The hoisting device according to claim 3, characterized in that, A limiting part is provided on the base (3), and the limiting part is located on the side of the rotation axis close to the connecting mechanism (1); When the rotating body (4) is in the mounting position, the limiting part can restrict the rotating body (4) from rotating in the same direction as the opening of the hook part (5); Furthermore, when the rotating body (4) is in the unloading position, the limiting part can restrict the rotating body (4) from rotating in the opposite direction to the opening of the hook part (5).

5. The hoisting device according to any one of claims 1-4, characterized in that, The rotating body (4) is provided in pairs, and the rotation axis of the pair of rotating bodies (4) coincides with that of the base (3). The torque generated by the gravity of the pair of rotating bodies (4) is in opposite directions. When both of the rotating bodies (4) are in the mounting position, the pair of rotating bodies (4) are symmetrical about the vertical plane containing the axis of rotation, and either of the pair of rotating bodies (4) can prevent the lifting ring (18) from disengaging from the hook (5) of the other.

6. The hoisting device according to claim 5, characterized in that, The hook part (5) is semi-circular arc-shaped. One end of the hook part (5) is connected to the end of the rotating body (4), and the other end of the hook part (5) is a free end. When the pair of rotating bodies (4) are in the mounting position, the centers of the hook portions (5) of the pair of rotating bodies (4) coincide, and the centers of the hook portions (5) are located in the vertical plane where the rotation axis is located.

7. The hoisting device according to any one of claims 1-4, characterized in that, Also includes: A buffer mechanism is disposed between the base (3) and the connecting mechanism (1), and the buffer mechanism is used to mitigate the impact on the target cargo (17) when it lands.

8. The hoisting device according to claim 7, characterized in that, The buffer mechanism includes: The mounting bracket is connected to the connecting mechanism (1); A buffer frame is slidably connected to the mounting frame, and the sliding direction of the buffer frame relative to the mounting frame is vertical. An elastic element (8) is disposed between the buffer frame and the mounting frame, and the elastic element (8) exerts a force on the buffer frame in a direction close to the connecting mechanism (1).

9. The hoisting device according to claim 8, characterized in that, The mounting bracket includes: The support rod (9) is connected at one end to the connecting mechanism (1), and the axis of the support rod (9) is set in the vertical direction; The first support plate (10) is fixedly installed at the other end of the support rod (9); The buffer frame includes: The second support plate (11) is disposed on the side of the first support plate (10) near the connecting mechanism (1), and the support rod (9) passes through the second support plate (11) and the support rod (9) slides with the second support plate (11); A guide rod (12) is disposed on the side of the second support plate (11) near the first support plate (10). The axis of the guide rod (12) is arranged in the vertical direction. One end of the guide rod (12) is fixedly connected to the second support plate (11). The guide rod (12) passes through the first support plate (10). The guide rod (12) is slidably engaged with the first support plate (10). The base (3) is fixedly connected to the other end of the guide rod (12). The elastic element (8) is a helical spring, which is sleeved on the outside of the guide rod (12). The two ends of the helical spring abut against the first support plate (10) and the second support plate (11), respectively.

10. A drone device, characterized in that, Includes the hoisting device as described in any one of claims 1 to 9.

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