Heavy-load unmanned aerial vehicle with protection structure

By designing a disassembly mechanism and buffer structure on heavy-duty drones, the problem of damage to drones during strong collisions has been solved, enabling rapid disassembly and installation, and improving maintenance efficiency and service life.

CN223934979UActive Publication Date: 2026-02-24ZHUHAI JIUCHONGTIAN AVIATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520656596.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-02-24
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

Existing heavy-duty drones have limited cushioning effect when faced with strong collisions, making them susceptible to damage. Furthermore, the disassembly and maintenance process is cumbersome and requires specialized tools, making it difficult to repair in emergency situations.

Method used

A disassembly mechanism was designed to enable the rapid disassembly and installation of the protective mechanism through the cooperation of connecting blocks and locking blocks. Combined with the buffer structure of rubber rings, springs and trapezoidal blocks, it absorbs impact force and reduces damage to the drone.

Benefits of technology

It enables rapid disassembly and installation of drones, improves maintenance efficiency, reduces repair costs, and reduces damage to drones through an effective buffer structure, thus extending their service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and discloses a heavy-load unmanned aerial vehicle with a protection structure, which comprises an unmanned aerial vehicle main body, a dismounting mechanism is arranged outside the unmanned aerial vehicle main body, the dismounting mechanism comprises a plurality of fixing blocks, and a plurality of supporting arms are fixedly arranged on the outer surface of the unmanned aerial vehicle main body. Two clamping blocks are slidably arranged in each supporting arm, clamping grooves are formed in the opposite sides of the interiors of the fixing blocks, connecting blocks are slidably arranged at the upper ends of the supporting arms, and two connecting ropes are fixedly arranged at the lower ends of the connecting blocks. According to the unmanned aerial vehicle, operators can quickly complete disassembly and assembly operation through the disassembly mechanism, the working efficiency is improved, the maintenance efficiency is improved, the maintenance cost is reduced, the protection mechanism can relieve damage to the unmanned aerial vehicle caused by external collision, protection on the unmanned aerial vehicle body is improved, and the unmanned aerial vehicle is safe and reliable. Therefore, the service life of the unmanned aerial vehicle is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a heavy-duty UAV with a protective structure. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are aircraft that do not require a human pilot and are controlled via radio remote control or an autonomous flight system. Heavy-duty UAVs, as a type of UAV, are characterized by their carrying capacity, i.e., the load they can withstand. In addition, heavy-duty UAVs possess technical features such as long endurance, high efficiency, intelligent control, and modular design. These characteristics make heavy-duty UAVs promising for applications in logistics, construction, and engineering.

[0003] An existing patent (publication number: CN222137064U) discloses that "this application provides a drone with a protective structure, including a drone component and a protective component. The drone component includes a drone body, a support arm, and an electric rotor. The protective component includes a fixing block, a protective ring, a fixing element, a spring plate, a protective cover, and a hook. The fixing block is fixedly connected to the support arm. By setting the drone body, support arm, electric rotor, fixing block, protective ring, fixing element, spring plate, protective cover, and hook, and by setting multiple spring plates on the outside of the protective ring, the impact force of a collision can be greatly buffered, reducing collision damage. The protective ring is installed on the fixing block and support arm by a single fixing element, which is convenient for disassembly and assembly. At the same time, the protective cover is easily disassembled and assembled by hooking onto the protective ring, thereby greatly improving the efficiency of disassembly and assembly and ensuring sufficient protective performance for each flight."

[0004] In the process of developing this application, the inventors discovered the following problems with the prior art:

[0005] This heavy-duty drone uses multiple spring plates on the outside of the protective ring to buffer the impact of collisions and reduce damage. However, the buffering effect of the spring plates alone is limited. When faced with a strong collision, they cannot fully absorb the impact force, making the drone still susceptible to damage. Disassembly, maintenance, and replacement require turning to remove the fixing bolts and then removing the pressure plate. This process is not only cumbersome but also requires specialized tools, which greatly affects the convenience and efficiency of maintenance personnel. Moreover, in some emergency situations or field operations, maintenance work will be difficult to carry out without specialized tools.

[0006] Therefore, those skilled in the art have provided a heavy-duty unmanned aerial vehicle with a protective structure to solve the problems mentioned in the background art. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heavy-duty drone with a protective structure. The protective structure can be quickly disassembled and installed by means of the connecting block in the disassembly mechanism. The protective structure can effectively resist external collisions and reduce the possibility of damage to the drone.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A heavy-duty drone with a protective structure includes a drone body. The drone body is provided with a disassembly mechanism, which includes multiple fixing blocks. Multiple support arms are fixedly provided on the outer surface of the drone body. Two locking blocks are slidably provided inside each of the multiple support arms. The multiple fixing blocks are provided with locking grooves on opposite sides inside each of the multiple support arms. Connecting blocks are slidably provided at the upper ends of the multiple support arms. Two connecting ropes are fixedly provided at the lower ends of the multiple connecting blocks.

[0010] Each of the multiple support arms has a protective mechanism on its outer surface. Each of the multiple protective mechanisms includes multiple protective rings. Each of the multiple protective rings has multiple spring pieces fixedly installed on its outer surface. Each of the multiple fixed blocks has a rubber ring fixedly installed on its side away from the support arm. Each of the multiple spring pieces has two rotating blocks rotatably installed on its side near the rubber ring. Each of the multiple spring pieces has a guide rod fixedly installed on its side near the protective ring. Each of the multiple guide rods has a trapezoidal block fixedly installed on its opposite side. Each of the multiple protective rings has multiple inclined blocks slidably installed on its side near the spring piece.

[0011] Furthermore, the multiple connecting ropes are fixedly mounted on opposite sides of the multiple card blocks, and the multiple card blocks are slidably mounted inside the multiple card slots.

[0012] Furthermore, springs are fixedly installed on each opposite side of the plurality of the locking blocks, and the interior of the plurality of fixing blocks is respectively installed on the exterior of the plurality of supporting arms. The springs are fixedly installed on each opposite side of the plurality of supporting arms.

[0013] Furthermore, the outer surfaces of the multiple spring pieces are respectively fixedly disposed inside the multiple rubber rings, the outer surfaces of the multiple protective rings are each provided with multiple sliding grooves, and the outer surfaces of the multiple rotating blocks are each provided with sliding blocks on the side near the protective rings, and the outer surfaces of the multiple sliding blocks are respectively slidably disposed inside the multiple sliding grooves.

[0014] Furthermore, the trapezoidal blocks are slidably disposed on the side of the multiple inclined blocks near the protective ring, and the exterior of the multiple trapezoidal blocks are slidably disposed inside the multiple protective rings.

[0015] Furthermore, each of the multiple inclined blocks is fixedly provided with a compression spring on opposite sides, and each of the multiple compression springs is fixedly provided inside multiple protective rings on opposite sides, and each of the multiple protective rings is threadedly connected with a breathable cover at its upper end.

[0016] Furthermore, multiple dampers are fixedly installed at the lower end of the main body of the drone, and support legs are fixedly installed between the output ends of each pair of the multiple dampers.

[0017] This utility model has the following beneficial effects:

[0018] 1. The present invention proposes a heavy-duty drone with a protective structure. During disassembly, the connecting block is pulled upward to make the connecting rope slide, and the locking block is pulled to make it slide inside the support arm, causing the locking block to disengage from the slot, thereby disassembling the connection between the protective mechanism and the support arm. The whole process does not require professional tools, allowing operators to quickly complete the disassembly and assembly operations, which not only improves work efficiency but also maintenance efficiency and reduces maintenance costs.

[0019] 2. The present invention proposes a heavy-duty drone with a protective structure. When the drone is subjected to an external collision, the rubber ring first contacts and bears the impact force. Under the action of the impact force, the spring will deform, causing the rotating block to rotate, making the slider slide rub against the inside of the groove, and also driving the guide rod to slide rub against the inside of the protective ring, and causing the trapezoidal block to squeeze the inclined block, further generating friction force, thereby reducing the damage caused to the drone by the external collision, improving the protection of the drone body, and thus extending the service life of the drone. Attached Figure Description

[0020] Figure 1 This is an isometric schematic diagram of the entire utility model;

[0021] Figure 2 This is an isometric view of the protective mechanism of this utility model;

[0022] Figure 3 This is a partial orthographic isometric view of the present invention near the disassembly mechanism;

[0023] Figure 4 This is an isometric view of the vent cover of this utility model in the open state.

[0024] Figure 5 This is an isometric view of the present invention near the spring sheet.

[0025] Legend:

[0026] 1. UAV body; 2. Disassembly mechanism; 3. Protective mechanism; 4. Ventilation cover; 5. Support leg; 6. Damper; 201. Connecting block; 202. Fixing block; 203. Support arm; 204. Connecting rope; 205. Spring; 206. Slot; 207. Locking block; 301. Rubber ring; 302. Spring piece; 303. Rotating block; 304. Guide rod; 305. Slide groove; 306. Protective ring; 307. Sliding block; 308. Trapezoidal block; 309. Inclined block; 310. Compression spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1-3 One embodiment provided by this utility model:

[0029] A heavy-duty unmanned aerial vehicle (UAV) with a protective structure includes a UAV body 1. A disassembly mechanism 2 is provided on the outside of the UAV body 1. The disassembly mechanism 2 includes multiple fixing blocks 202. Multiple support arms 203 are fixedly provided on the outer surface of the UAV body 1. Two locking blocks 207 are slidably provided inside each of the multiple support arms 203. The fixing blocks 202 have slots 206 on opposite sides inside each of the multiple fixing blocks 202. Connecting blocks 201 are slidably provided on the upper end of each of the multiple support arms 203. Two connecting ropes 204 are fixedly provided on the lower end of each of the multiple connecting blocks 201. The multiple connecting ropes 204 are fixedly provided on opposite sides of each pair of locking blocks 207 on opposite sides of each pair. The locking blocks 207 are slidably provided inside the multiple slots 206 on the outside. Springs 205 are fixedly provided on opposite sides of each pair of locking blocks 207. The fixing blocks 202 are respectively provided on the outside of the multiple support arms 203. The springs 205 are fixedly provided on opposite sides of each pair of support arms 203.

[0030] Specifically, when disassembling the fixing block 202, the operator only needs to pull the connecting block 201 upwards. The movement of the connecting block 201 will cause the connecting rope 204 to slide upwards synchronously inside the support arm 203. The connecting rope 204 has a conductive function and can pull the locking block 207. The locking block 207 will squeeze the spring 205 and slide. After sliding to a certain position, the locking block 207 will disengage from the slot 206 of the fixing block 202. At this time, the locking relationship between the fixing block 202 and the support arm 203 is released, and the fixing block 202 can be easily removed by sliding it upwards from the outside of the support arm 203, thus successfully completing the disassembly operation of the protective mechanism 3. During the installation operation, first put the fixing block 202 on the support arm 203, and then let the fixing block 202 slide downwards along the outside of the support arm 203. When the fixing block 202 slides down, its inner wall will engage the locking block 206. The compression action generates a squeezing force, causing the locking block 207 to slide towards each other inside the support arm 203. At the same time, it squeezes the spring 205 connected to the locking block 207. When the fixed block 202 slides to the predetermined final position, the spring 205 rebounds due to its own elasticity, pushing the locking block 207 to reset, so that the locking block 207 is accurately embedded in the slot 206, successfully achieving a firm lock on the fixed block 202. The entire operation process only requires simple pulling and sliding actions, without the need for complex tools, which improves the efficiency of disassembly and installation, and facilitates maintenance personnel to quickly maintain or replace parts of the protective mechanism 3. Moreover, the cooperation between the spring 205, the locking block 207, and the slot 206 ensures that the fixed block 202 is firmly connected during flight and will not loosen or fall off due to vibration or external force, ensuring the reliability of the UAV protective mechanism 3 and reducing the flight safety risk caused by the loosening of the protective structure.

[0031] Reference Figures 1-5Multiple support arms 203 are provided with protective mechanisms 3 on their outer surfaces. Each protective mechanism 3 includes multiple protective rings 306. Multiple spring pieces 302 are fixedly mounted on the outside of each protective ring 306. Rubber rings 301 are fixedly mounted on the side of each fixed block 202 away from the support arm 203. Two rotating blocks 303 are rotatably mounted inside each spring piece 302 near the rubber ring 301. Guide rods 304 are fixedly mounted inside each spring piece 302 near the protective ring 306. Trapezoidal blocks 308 are fixedly mounted on opposite sides of each guide rod 304. Multiple inclined blocks 309 are slidably mounted inside each protective ring 306 near the spring piece 302. The outside of each spring piece 302 is fixedly mounted inside the multiple rubber rings 301. Each part is provided with multiple sliding grooves 305. Multiple rotating blocks 303 are rotatably mounted with sliders 307 on the side near the protective ring 306. Multiple sliders 307 are slidably mounted inside multiple sliding grooves 305. Multiple trapezoidal blocks 308 are slidably mounted on the side near the protective ring 306 on the side near the spring piece 302 of multiple inclined blocks 309. Multiple trapezoidal blocks 308 are slidably mounted inside multiple protective rings 306. Multiple inclined blocks 309 are fixedly mounted with compression springs 310 on opposite sides of each pair. Multiple compression springs 310 are fixedly mounted inside multiple protective rings 306 on opposite sides of each pair. The upper end of multiple protective rings 306 is threaded with a vent hood 4. Multiple dampers 6 are fixedly mounted at the lower end of the drone body 1. Support legs 5 are fixedly mounted between the output ends of multiple dampers 6.

[0032] Specifically, when the main body of the drone 1 encounters an external collision, the rubber ring 301 contacts and bears the impact force. Under the strong impact force, the spring piece 302 inside the rubber ring 301 begins to deform. The deformation of the spring piece 302 causes the rotating block 303 to rotate accordingly. The rotation of the rotating block 303 causes the slider 307 to generate friction and slide inside the groove 305. At the same time, the deformation of the spring piece 302 drives the guide rod 304 to move into the protective ring 306. The movement of the guide rod 304 pushes the trapezoidal block 308 to squeeze the inclined block 309. Under this force, the inclined block 309 slides in the opposite direction inside the protective ring 306 and squeezes the compression spring 310, causing it to contract. In the entire buffering process... During the process, the deformation of the spring 302, the friction of the slider 307 in the groove 305, and the friction between the trapezoidal block 308 and the inclined block 309 can absorb a large amount of impact energy, effectively reducing the impact of the impact force on the main body of the drone 1. The rubber ring 301, with its own elastic properties, can also play a role in buffering and shock absorption, further reducing the impact on the main body of the drone 1. In addition, the presence of the vent 4 ensures air circulation between the inside and outside of the drone, which helps the internal electronic components of the drone to dissipate heat during operation and avoids performance impact or damage due to overheating. The damper 6 and the support leg 5 play a role in buffering and supporting when the drone lands, enhancing the stability of the drone when parked on the ground and taking off and landing.

[0033] Working principle: When it is necessary to disassemble the fixing block 202, by pulling the connecting block 201 upward, it will drive the connecting rope 204 to slide upward inside the support arm 203. The movement of the connecting rope 204 will pull the locking block 207, causing it to slide inside the support arm 203 and compress the spring 205. When the locking block 207 slides, it will disengage from the locking groove 206. At this time, the fixing block 202 can be slid upward from the outside of the support arm 203 to complete the removal, thereby completing the disassembly of the protective mechanism 3. (The text abruptly ends here, likely due to an incomplete translation or source material.) When the fixed block 202 is placed on the support arm 203, the fixed block 202 is then slid downward outside the support arm 203. During the sliding, the locking block 207 will be squeezed by the inner wall of the fixed block 202, and it will slide towards each other inside the support arm 203, squeezing the spring 205 connected to it. When the fixed block 202 slides to the final position, the spring 205 rebounds and pushes the locking block 207 to reset, thereby making the locking block 207 embedded in the slot 206, thus locking the fixed block 202.

[0034] Secondly, when the drone is subjected to an external collision, the rubber ring 301 will first contact and bear the impact force, causing the internal spring 302 to deform under the impact force, causing the rotating block 303 to rotate, resulting in the slider 307 sliding frictionally inside the groove 305. The deformation of the spring 302 will drive the guide rod 304 to move into the protective ring 306, thereby causing the trapezoidal block 308 to press the inclined block 309, causing the inclined block 309 to slide in the opposite direction inside the protective ring 306, and compressing the compression spring 310 to contract. During this process, the deformation of the spring 302, the friction of the slider 307 in the groove 305, and the friction between the trapezoidal block 308 and the inclined block 309 will absorb a large amount of impact energy. In addition, the rubber ring 301 can play a buffering and shock absorption role, further reducing the impact on the drone body 1, and the vent 4 facilitates air circulation.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heavy-duty unmanned aerial vehicle (UAV) with a protective structure, comprising a UAV body (1), characterized in that: The main body (1) of the drone is provided with a disassembly mechanism (2) on the outside. The disassembly mechanism (2) includes multiple fixing blocks (202). Multiple support arms (203) are fixedly provided on the outer surface of the main body (1). Two locking blocks (207) are slidably provided inside each of the multiple support arms (203). A slot (206) is opened on the opposite side inside each of the multiple fixing blocks (202). A connecting block (201) is slidably provided at the upper end of each of the multiple support arms (203). Two connecting ropes (204) are fixedly provided at the lower end of each of the multiple connecting blocks (201). Each of the multiple support arms (203) is provided with a protective mechanism (3) on its outer surface. Each of the multiple protective mechanisms (3) includes multiple protective rings (306). Each of the multiple protective rings (306) is fixedly provided with multiple spring pieces (302) on its outer surface. Each of the multiple fixed blocks (202) is fixedly provided with a rubber ring (301) on its side away from the support arm (203). Each of the multiple spring pieces (302) is rotatably provided with two rotating blocks (303) on its side near the rubber ring (301). Each of the multiple spring pieces (302) is fixedly provided with a guide rod (304) on its side near the protective ring (306). Each of the multiple guide rods (304) is fixedly provided with a trapezoidal block (308) on its opposite side. Each of the multiple protective rings (306) is slidably provided with multiple inclined blocks (309) on its side near the spring piece (302).

2. A heavy-duty UAV with a protective structure according to claim 1, characterized in that: Multiple connecting ropes (204) are fixedly mounted on opposite sides of multiple locking blocks (207), and the external parts of multiple locking blocks (207) are slidably mounted inside multiple locking slots (206).

3. A heavy-duty UAV with a protective structure according to claim 1, characterized in that: Each of the multiple card blocks (207) is fixedly provided with a spring (205) on each opposite side. The multiple fixed blocks (202) are respectively disposed inside the multiple support arms (203) and the multiple springs (205) are respectively fixedly disposed on each opposite side of the multiple support arms (203).

4. A heavy-duty UAV with a protective structure according to claim 1, characterized in that: Multiple spring pieces (302) are fixedly disposed inside multiple rubber rings (301) on the outside. Multiple protective rings (306) are provided with multiple sliding grooves (305) on the outside. Multiple rotating blocks (303) are provided with sliders (307) on the side near the protective rings (306). Multiple sliders (307) are slidably disposed inside multiple sliding grooves (305) on the outside.

5. A heavy-duty UAV with a protective structure according to claim 1, characterized in that: The trapezoidal blocks (308) are slidably disposed on the side of the protective ring (306) near the side of the inclined blocks (309) near the spring piece (302), and the trapezoidal blocks (308) are slidably disposed on the outside of the protective ring (306) inside the protective ring (306).

6. A heavy-duty UAV with a protective structure according to claim 1, characterized in that: Each of the multiple inclined blocks (309) is fixedly provided with a compression spring (310) on each opposite side. Each of the multiple compression springs (310) is fixedly provided inside a multiple protective ring (306) on each opposite side. Each of the multiple protective rings (306) is threadedly connected with a breathable cover (4).

7. A heavy-duty UAV with a protective structure according to claim 1, characterized in that: Multiple dampers (6) are fixedly installed at the lower end of the main body (1) of the UAV, and support legs (5) are fixedly installed between the output ends of each pair of the multiple dampers (6).

Citation Information

Patent Citations

  • Unmanned aerial vehicle with protective structure

    CN222137064U