Suspension type unmanned aerial vehicle carrying device

Abstract

The invention discloses a suspension type unmanned aerial vehicle carrying device, and relates to the technical field of unmanned aerial vehicles. The suspension type unmanned aerial vehicle carrying device comprises an unmanned aerial vehicle body which is a load-carrying unmanned aerial vehicle. The connecting mechanism is fixedly arranged in the lower end of the unmanned aerial vehicle body, the connecting mechanism comprises a fixing plate, and connecting sliding grooves are formed in the two sides of the interior of the fixing plate; the object carrying mechanism comprises a connecting plate, the connecting plate is slidably arranged between the two connecting sliding grooves, a supporting table is arranged in the middle of the interior of the connecting plate in a penetrating mode, a suspension cylinder is fixedly arranged at the lower end of the supporting table, the interior of the suspension cylinder is hollow, a damping piston is slidably arranged at the upper end of the suspension cylinder, and the damping piston vertically and slowly slides along the suspension cylinder. And a transmission rod is fixedly arranged at the lower end. By adopting damping and pneumatic transmission, stable lifting is achieved, and objects and mechanisms are protected; the carrying support can be flexibly adjusted to adapt to different articles; the structure is stable and easy to maintain, and flight control requirements and use cost are reduced.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically to a suspended UAV cargo carrier. Background Technology

[0002] In this era of rapid technological advancement, drones, with their unique advantages, have found widespread application in numerous fields. In logistics and delivery, drones can overcome traffic congestion, quickly delivering goods to their destinations and significantly improving delivery efficiency. In agricultural production, drones can be used for farmland inspections, pesticide spraying, and other operations, contributing to the development of precision agriculture and increasing crop yields. In emergency rescue scenarios, drones can quickly reach disaster-stricken areas to transport supplies and conduct disaster reconnaissance, providing crucial support for rescue operations. In surveying and mapping, drones can efficiently acquire high-precision geographic information data, providing important data for urban planning and land development. The cargo-carrying function, as one of the key capabilities of drones to achieve these applications, is undeniably important. It directly determines the actual application effect and value of drones in various fields and is a core element for drones to function effectively.

[0003] Currently, many drone cargo carriers on the market have fixed cargo spaces. This characteristic exposes numerous problems in practical applications, severely limiting the quantity and efficiency of transportation. For example, when transporting large quantities of supplies, the fixed cargo space cannot meet the loading requirements, potentially requiring multiple round trips, which not only consumes a lot of time and energy but also reduces overall transportation efficiency. Furthermore, when dealing with large but lightweight supplies, such as large disaster relief tents, the fixed cargo space cannot be flexibly adjusted, resulting in low space utilization and failing to fully utilize the drone's carrying capacity; in some cases, space constraints may even prevent the transport of such supplies altogether. Additionally, existing drone cargo carriers, lacking effective cushioning measures, generate significant impact forces upon landing. This impact force is directly transmitted to the drone body, placing extremely high demands on the drone's flight control system. The flight control system needs powerful computing capabilities and precise control algorithms to respond to the impact force quickly and adjust the drone's attitude to ensure a safe landing. However, such high-performance flight control systems are often expensive, undoubtedly increasing the overall cost of the drone. In addition, the high requirements for flight control systems also pose challenges to the design and manufacturing technology of drones, increasing the difficulty of research and development and production costs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a suspended unmanned aerial vehicle (UAV) cargo-carrying device, comprising:

[0005] The main body of the drone is a payload drone;

[0006] A connecting mechanism is fixedly installed inside the lower end of the drone body. The connecting mechanism includes a fixing plate, and connecting grooves are provided on both sides inside the fixing plate.

[0007] The loading mechanism includes a connecting plate, which is slidably disposed between two connecting grooves. A support platform is provided through the middle of the connecting plate. A suspension cylinder is fixedly provided at the lower end of the support platform. The suspension cylinder is hollow inside and a damping piston is slidably provided at its upper end. The damping piston slides slowly vertically along the suspension cylinder. A transmission rod is fixedly provided at its lower end. The transmission rod is connected to the loading frame.

[0008] A conveying column is fixedly installed at the bottom of the suspension cylinder. Both ends of the conveying column are connected to transmission pipes, and holes are opened inside to connect the suspension cylinder and the transmission pipes.

[0009] The lower end of the carrying frame is fixedly provided with a first connecting block on both sides. A sealed telescopic rod is fixedly provided inside the first connecting block. The air inlet of the telescopic rod is connected to the other end of the transmission pipe, and a sliding push block is fixedly provided inside the telescopic rod.

[0010] Two second connecting blocks are fixedly provided on both sides of the lower end of the loading frame. A rotating frame is hinged to the inner side of the second connecting block, and the sliding push block is slidably disposed on the upper end of the rotating frame.

[0011] Preferably, a fixing baffle is hinged at the front opening of the fixing plate, a handle groove is provided through one side of the fixing baffle, and a positioning pin is provided through the front end of the fixing plate near the opening. The fixing baffle is positioned inside the front opening of the fixing plate by the positioning pin.

[0012] Preferably, each of the plurality of rotating frames is fixedly provided with a buffer strip on the side near the lower end, and the plurality of buffer strips are made of rubber.

[0013] Preferably, landing gears are fixedly installed on both sides of the lower end of the drone body, and the connecting mechanism and the cargo-carrying mechanism are arranged between the two landing gears. The horizontal height of the lower end of the landing gears is lower than the horizontal height of the lower end of the cargo-carrying mechanism.

[0014] Preferably, the interior of the suspension cylinder, the transmission pipe, and the telescopic rod are interconnected and filled with air.

[0015] Preferably, the plurality of sliding push blocks are correspondingly slidably disposed inside the sliding grooves at the upper end of the plurality of rotating frames, and when the sliding push blocks slide, they drive the rotating frames to rotate around the second connecting block.

[0016] Preferably, the cargo frame is a frame structure with an open top, and the drone's cargo-carrying function is achieved by placing items inside the cargo frame.

[0017] Preferably, the load frame is driven by the weight of the item or the impact force of landing to lower the transmission rod, causing the damping piston to press the gas inside the suspension cylinder into the multiple telescopic rods through the transmission pipe, driving the telescopic rods to extend, and then driving the multiple rotating frames to unfold downwards through the sliding push block.

[0018] Preferably, the connecting plate and the support platform are integrally formed, and the connection between the two is provided with reinforcing ribs, which are evenly distributed along the circumference of the support platform.

[0019] Preferably, the transmission pipe is made of flexible pressure-resistant rubber tubing, and sealing gaskets are provided at the connection points between the transmission pipe and the conveying column and the telescopic rod.

[0020] The beneficial effects of this invention are reflected in:

[0021] Through a unique damping piston and buffer structure design, the impact force on the drone body upon landing of the cargo frame is effectively mitigated, thereby reducing the requirements for the drone's flight control system. Traditional drone cargo carriers, due to the significant impact force during landing, require high-performance, high-cost flight control systems to ensure flight safety and stability. This device, however, eliminates the need for overly powerful computing capabilities and complex control algorithms in the flight control system to handle various situations during cargo transport, significantly reducing the drone's hardware costs. Furthermore, the reduced requirements for the flight control system also mean effectively controlling maintenance costs during subsequent use. High-performance flight control systems often require more frequent maintenance and more specialized technicians for debugging, while the lower requirements of this device simplify and streamline maintenance, reducing the frequency and complexity of maintenance, and consequently lowering maintenance costs. In summary, this device's dual reduction in both hardware and maintenance costs provides a more economical and efficient solution for drone cargo transport applications. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is an isometric view of the present invention;

[0024] Figure 2 This is a bottom-view axial side view of the present invention;

[0025] Figure 3 This is an axonometric schematic diagram of the loading mechanism of the present invention;

[0026] Figure 4This is a bottom-view axonometric schematic diagram of the loading mechanism of the present invention;

[0027] Figure 5 This is a partial axonometric schematic diagram of the loading mechanism of the present invention;

[0028] Figure 6 This is a cross-sectional schematic diagram of the suspension cylinder of the present invention.

[0029] In the attached diagram: 1. Carrying mechanism; 2. Connecting mechanism; 3. UAV body; 4. Landing gear; 101. Connecting plate; 102. Support platform; 103. Suspension cylinder; 104. Transmission pipe; 105. Carrying frame; 106. First connecting block; 107. Telescopic rod; 108. Buffer strip; 109. Rotating frame; 110. Second connecting block; 111. Sliding push block; 112. Damping piston; 113. Transmission rod; 114. Conveying column; 201. Fixing plate; 202. Connecting groove; 203. Positioning pin; 204. Fixing baffle; 205. Handle groove. Detailed Implementation

[0030] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0031] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0032] like Figure 1-6 As shown, an embodiment of the present invention provides a suspended unmanned aerial vehicle (UAV) cargo-carrying device, comprising:

[0033] The main body of the drone, number 3, is a heavy-duty drone.

[0034] The connecting mechanism 2 is fixedly installed inside the lower end of the UAV body 3. The connecting mechanism 2 includes a fixing plate 201, and connecting grooves 202 are provided on both sides of the inside of the fixing plate 201.

[0035] The loading mechanism 1 includes a connecting plate 101, which is slidably disposed between the interiors of two connecting grooves 202;

[0036] The drone body 3 has landing gear 4 fixedly installed on both sides of the lower end. The connecting mechanism 2 and the cargo-carrying mechanism 1 are located between the two landing gears 4. The horizontal height of the lower end of the landing gear 4 is lower than the horizontal height of the lower end of the cargo-carrying mechanism 1.

[0037] Specifically, the landing gear 4 is made of high-strength, lightweight material and has a symmetrical structure, providing stable support during the takeoff and landing of the UAV body 3. Placing the connecting mechanism 2 and the cargo carrier 1 between the two landing gears 4 avoids interference between the landing gear 4 and the cargo carrier 1 during takeoff and landing. Setting the lower horizontal height of the landing gear 4 to be lower than that of the cargo carrier 1 ensures that the cargo carrier 1 does not contact the ground when the UAV is parked, preventing damage to the cargo carrier 1 and any items placed inside due to ground friction or collision. It also provides operating space for the installation and debugging of the cargo carrier 1.

[0038] A support platform 102 is installed through the middle of the connecting plate 101. A suspension cylinder 103 is fixedly installed at the lower end of the support platform 102. A cargo frame 105 is connected to the lower end of the suspension cylinder 103. The drone can carry cargo by placing items inside the cargo frame 105. A damping piston 112 is slidably installed near the upper end of the hollow suspension cylinder 103. The damping piston 112 slides slowly vertically inside the suspension cylinder 103. A transmission rod 113 is fixedly installed at the lower end of the damping piston 112. The lower end of the transmission rod 113 is fixedly connected to the upper end of the cargo frame 105. A conveying column 114 is fixedly installed at the bottom of the suspension cylinder 103. Both ends of the conveying column 114 are connected to the transmission pipe 104. Holes are opened inside the conveying column 114 to connect the internal space of the suspension cylinder 103 with the transmission pipe 104.

[0039] Specifically, the support platform 102 and the connecting plate 101 are integrally molded, which enhances the stability of their connection and prevents relative displacement between them during loading. The inner wall of the suspension cylinder 103 is precision-machined with a high degree of surface smoothness, reducing frictional resistance when the damping piston 112 slides, while ensuring the seal between the damping piston 112 and the inner wall of the suspension cylinder 103 to prevent gas leakage from affecting the damping effect. The connection between the transmission rod 113, the damping piston 112, and the loading frame 105 is achieved through welding, resulting in high connection strength and the ability to withstand the weight of the loading frame 105 and its contents. The diameter of the holes inside the conveying column 114 matches the inner diameter of the transmission pipe 104, ensuring smooth gas flow between the suspension cylinder 103 and the transmission pipe 104 without significant airflow obstruction, providing stable gas power for the subsequent extension and retraction of the telescopic rod 107.

[0040] First connecting blocks 106 are fixedly installed on both sides of the lower end of the loading frame 105. Telescopic rods 107 are fixedly installed near the inner side of the multiple first connecting blocks 106. The multiple telescopic rods 107 are sealed inside, and the air inlet is connected to the other end of the transmission pipe 104. Sliding push blocks 111 are fixedly installed near the inner side of the multiple telescopic rods 107. Two second connecting blocks 110 are fixedly installed on both sides of the lower end of the loading frame 105. Rotating frames 109 are hinged to the multiple second connecting blocks 110 near the inner side. Multiple sliding push blocks 111 are slidably installed on the upper end of the multiple rotating frames 109 respectively.

[0041] The loading frame 105 drives the transmission rod 113 to descend, causing the damping piston 112 to press the gas inside the suspension cylinder 103 into the interior of multiple telescopic rods 107 through the transmission pipe 104 to extend them. The sliding push block 111 connected to the output end of the multiple telescopic rods 107 moves, and causes the multiple rotating frames 109 to unfold downwards.

[0042] Specifically, the first connecting block 106 is bolted to the carrying frame 105, facilitating the installation, disassembly, and maintenance of the telescopic rod 107. When the telescopic rod 107 malfunctions, it can be disassembled and replaced separately without replacing the entire carrying frame 105. The telescopic rod 107 consists of an outer cylinder and an inner rod. The inner rod can slide inside the outer cylinder. Its internal sealing structure uses a sealing ring design made of aging-resistant rubber, which maintains the internal sealing of the telescopic rod 107 for a long time, preventing gas leakage that could cause the telescopic rod 107 to fail to extend or retract. A bearing is installed at the hinge between the second connecting block 110 and the rotating frame 109. The bearing reduces friction during the rotation of the rotating frame 109, allowing the rotating frame 109 to flexibly extend or retract under the action of the sliding push block 111. When an item is placed in the carrying frame 105, the weight of the item causes the carrying frame 105 to pull down the transmission rod 113, which in turn drives the damping piston 112 to slide down. The gas in the suspension cylinder 103 is compressed and enters the telescopic rod 107 through the transmission pipe 104. The telescopic rod 107 extends and pushes the sliding push block 111. The sliding push block 111 moves at the upper end of the rotating frame 109, ultimately causing the rotating frame 109 to unfold downward.

[0043] A fixed baffle 204 is hinged at the front opening of the fixed plate 201. A handle groove 205 is provided through one side of the fixed baffle 204. A positioning pin 203 is provided through the front end of the fixed plate 201 near the opening. The fixed baffle 204 is positioned inside the front opening of the fixed plate 201 by the positioning pin 203.

[0044] Specifically, the hinge joint between the fixed baffle 204 and the fixed plate 201 is connected by a hinge. The hinge is made of stainless steel and has good rust prevention performance, which can extend the service life of the fixed baffle 204. The shape of the handle groove 205 is arc-shaped and is adapted to the contour of the human finger, which is convenient for the operator to rotate the fixed baffle 204 through the handle groove 205 and improve the operation convenience. The surface of the positioning pin 203 is provided with anti-slip lines, which can increase the friction force between the operator's hand and the positioning pin 203 and facilitate the insertion and extraction of the positioning pin 203. After the connecting plate 101 is slidably installed into the connecting chute 202 of the fixed plate 201, rotate the fixed baffle 204 to close the front end opening of the fixed plate 201, and then insert the positioning pin 203 to position the fixed baffle 204, which can prevent the connecting plate 101 from sliding out of the connecting chute 202 during the flight of the drone and ensure the reliability of the connection between the loading mechanism 1 and the connecting mechanism 2.

[0045] On one side near the lower end of each of the plurality of rotating frames 109, a buffer strip 108 is fixedly arranged; the plurality of buffer strips 108 are made of rubber material;

[0046] Specifically, the buffer strip 108 and the rotating frame 109 are fixedly adhered by glue. Before adhesion, the adhesion surface of the rotating frame 109 is polished to remove surface impurities and oxide layers, enhancing the adhesion strength between the buffer strip 108 and the rotating frame 109 and preventing the buffer strip 108 from falling off during use. The rubber buffer strip 108 has good elasticity and deformation ability. When the drone lands, the rotating frame 109 first contacts the ground, and the buffer strip 108 can absorb the impact force generated during landing, avoiding direct hard collision between the rotating frame 109 and the ground and causing damage. At the same time, it can also reduce the impact force transmitted to the loading frame 105 and the internal items, play a protective role for the items, and reduce the probability of damage to the items due to impact.

[0047] The internal space of the suspension cylinder 103, the transmission pipe 104, and the internal space of the telescopic rod 107 are connected and filled with air;

[0048] Specifically, after the device is assembled, a sealing performance test will be carried out on the connected space inside the suspension cylinder 103, the transmission pipe 104, and the telescopic rod 107. The test method is to introduce air with a certain pressure into the inside and observe whether the pressure remains stable within a period of time. If the pressure does not drop significantly, it indicates that the sealing performance is qualified. The air filled inside is normal pressure air, which does not require special gas, reducing the manufacturing cost and use threshold of the device. Air has compressibility. When the damping piston 112 slides, the air can flow in the connected space to achieve energy transfer and buffering. Moreover, the air source is extensive. Even if there is a small amount of gas leakage inside the device, the function of the device can be restored by simply replenishing air, without complex maintenance operations.

[0049] Multiple sliding push blocks 111 are slidably disposed inside the upper sliding grooves of multiple rotating frames 109, and the sliding push blocks 111 drive the rotating frames 109 to rotate when they slide.

[0050] Specifically, the width of the upper groove of the rotating frame 109 matches the width of the sliding push block 111. The inner wall of the groove is coated with grease, which further reduces the frictional resistance between the sliding push block 111 and the groove, allowing the sliding push block 111 to slide more smoothly within the groove. This prevents the sliding push block 111 from getting stuck due to excessive friction, thus affecting the normal rotation of the rotating frame 109. Both ends of the sliding push block 111 are provided with protruding structures. These protruding structures limit the sliding range of the sliding push block 111 within the groove, preventing it from sliding out and ensuring the stability of the cooperation between the sliding push block 111 and the rotating frame 109. When the sliding push block 111 slides along the groove under the push of the telescopic rod 107, it generates a pushing or pulling force on the rotating frame 109. Since the rotating frame 109 is hinged to the second connecting block 110, the rotating frame 109 rotates around the hinge point, thereby realizing the action of unfolding or retracting. This cooperation method has a simple structure, high transmission efficiency, and can accurately control the rotation angle of the rotating frame 109.

[0051] Working Principle: When the drone is ready to take off and perform a cargo-carrying mission, the operator places the cargo inside the cargo frame 105. The drone starts up, and its powerful propulsion system generates upward lift, causing the entire device to rise. During this process, due to the weight of the cargo, the cargo frame 105 generates a downward pull, which in turn moves the transmission rod 113 downward. The transmission rod 113 is fixedly connected to the damping piston 112, so the damping piston 112 also slowly descends inside the suspension cylinder 103. The slow descent of the damping piston 112 is achieved through the damping effect between it and the inner wall of the suspension cylinder 103. This damping effect prevents the piston from descending rapidly due to gas resistance, thus ensuring that the cargo frame 105 lifts the cargo slowly. This process effectively avoids the impact force caused by the sudden rise of the cargo, allowing the drone to smoothly lift the cargo off the ground and ensuring the safety and stability of the takeoff process.

[0052] During flight, the drone relies on its advanced flight control system and navigation equipment to fly stably along a preset route. The cargo-carrying mechanism 1 is securely connected to the drone body 3 via the connecting mechanism 2, maintaining relative stillness during flight and preventing damage to the cargo due to shaking. As the drone approaches its destination, it determines its landing position using a high-precision positioning system and begins a slow descent to prepare for unloading. During this stage, all components of the entire system work together to ensure the drone arrives at the designated location accurately and smoothly, providing a guarantee for subsequent unloading operations.

[0053] As the drone descends, the cargo frame 105 also approaches the ground. When the buffer strip 108 on the rotating frame 109 first contacts the ground, it deforms due to the ground's reaction force. This deformation generates force that is transmitted to the sliding push block 111 through the rotating frame 109, causing it to slide upwards within the groove of the rotating frame 109. The movement of the sliding push block 111 then causes the telescopic rod 107 to retract, thereby changing the gas pressure inside the suspension cylinder 103. Under the influence of this gas pressure, the damping piston 112 begins to rise. The rising of the damping piston 112 hinders the descent speed of the cargo frame 105, effectively mitigating the impact force when the cargo frame 105 lands. Simultaneously, the buffer strip 108, made of rubber, possesses excellent elasticity and cushioning properties, further absorbing and dispersing the impact force, allowing the cargo frame 105 to land slowly and smoothly. Throughout the landing process, the cargo carrier 1 effectively buffered the impact of the cargo frame 105 landing through its own structural design and the synergistic effect between its components, reducing the impact on the main body of the drone 3 and ensuring the safety of the drone and the cargo.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A suspended unmanned aerial vehicle (UAV) cargo-carrying device, characterized in that: include: The main body of the drone (3) is a heavy-duty drone; The connecting mechanism (2) is fixedly installed inside the lower end of the drone body (3). The connecting mechanism (2) includes a fixing plate (201), and connecting grooves (202) are provided on both sides inside the fixing plate (201). The loading mechanism (1) includes a connecting plate (101), which is slidably disposed between two connecting grooves (202). A support platform (102) is provided through the middle of the connecting plate (101). A suspension cylinder (103) is fixedly provided at the lower end of the support platform (102). The suspension cylinder (103) is hollow inside and a damping piston (112) is slidably provided at the upper end. The damping piston (112) slides slowly vertically along the suspension cylinder (103). A transmission rod (113) is fixedly provided at its lower end. The transmission rod (113) is connected to a loading frame (105). A conveying column (114) is fixedly provided at the bottom of the suspension cylinder (103). Both ends of the conveying column (114) are connected to the transmission pipe (104), and holes are opened inside to connect the suspension cylinder (103) and the transmission pipe (104). The lower end of the loading frame (105) is fixedly provided with a first connecting block (106) on both sides. A sealed telescopic rod (107) is fixedly provided inside the first connecting block (106). The air inlet of the telescopic rod (107) is connected to the other end of the transmission pipe (104), and a sliding push block (111) is fixedly provided inside the telescopic rod (107). Two second connecting blocks (110) are fixedly provided on both sides of the lower end of the loading frame (105). A rotating frame (109) is hinged to the inner side of the second connecting block (110). The sliding push block (111) is slidably disposed on the upper end of the rotating frame (109).

2. The suspended unmanned aerial vehicle (UAV) cargo-carrying device according to claim 1, characterized in that: A fixed baffle (204) is hinged at the front opening of the fixed plate (201). A handle groove (205) is provided through one side of the fixed baffle (204). A positioning pin (203) is provided through the front end of the fixed plate (201) near the opening. The fixed baffle (204) is positioned inside the front opening of the fixed plate (201) by the positioning pin (203).

3. A suspended unmanned aerial vehicle (UAV) cargo-carrying device according to claim 2, characterized in that: Each of the multiple rotating frames (109) has a buffer strip (108) fixedly installed on the side near the lower end, and the multiple buffer strips (108) are made of rubber.

4. A suspended unmanned aerial vehicle (UAV) cargo-carrying device according to claim 1, characterized in that: The drone body (3) has landing gear (4) fixedly installed on both sides of its lower end. The connecting mechanism (2) and the cargo carrier (1) are located between the two landing gears (4). The lower horizontal height of the landing gear (4) is lower than the lower horizontal height of the cargo carrier (1).

5. A suspended unmanned aerial vehicle (UAV) cargo-carrying device according to claim 1, characterized in that: The interior of the suspension cylinder (103), the transmission pipe (104), and the telescopic rod (107) are interconnected and filled with air.

6. A suspended unmanned aerial vehicle (UAV) cargo-carrying device according to claim 1, characterized in that: Multiple sliding push blocks (111) are correspondingly slidably disposed inside the sliding grooves at the upper end of multiple rotating frames (109), and when the sliding push blocks (111) slide, they drive the rotating frames (109) to rotate around the second connecting block (110).

7. A suspended unmanned aerial vehicle (UAV) cargo-carrying device according to claim 1, characterized in that: The cargo frame (105) is a frame structure with an opening at the top. The cargo carrying function of the drone is realized by placing items inside the cargo frame (105).

8. A suspended unmanned aerial vehicle (UAV) cargo-carrying device according to claim 7, characterized in that: The load frame (105) is driven by the weight of the item or the impact force of landing to lower the transmission rod (113), causing the damping piston (112) to press the gas inside the suspension cylinder (103) into the interior of multiple telescopic rods (107) through the transmission pipe (104), driving the telescopic rods (107) to extend, and then driving multiple rotating frames (109) to unfold downward through the sliding push block (111).

9. A suspended unmanned aerial vehicle (UAV) cargo-carrying device according to claim 1, characterized in that: The connecting plate (101) and the support platform (102) are integrally formed structures, and the connection between the two is provided with reinforcing ribs, which are evenly distributed along the circumference of the support platform (102).

10. A suspended unmanned aerial vehicle (UAV) cargo-carrying device according to claim 1, characterized in that: The transmission pipe (104) is made of flexible pressure-resistant rubber tubing, and sealing gaskets are provided at the connection points between the transmission pipe (104) and the conveying column (114) and the telescopic rod (107).

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