A medium-sized unmanned aerial vehicle mounting locking mechanism

By designing a mounting and locking mechanism with limit pins and bidirectional screws, the problem of time-consuming locking of the loading box and fuselage screws of medium-sized UAVs was solved, enabling rapid locking and disassembly, and improving assembly convenience and flight stability.

CN224427810UActive Publication Date: 2026-06-30ANHUI ZHONGXINHANG TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ZHONGXINHANG TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2025-09-08
Publication Date
2026-06-30

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Abstract

This utility model belongs to the technical field of medium-sized unmanned aerial vehicles (UAVs), specifically relating to a mounting and locking mechanism for medium-sized UAVs. It includes a UAV fuselage with four frames mounted on its outer wall. Each frame has a fan blade at one end. Two support frames are mounted on the bottom of the UAV fuselage, and a loading box is installed between the two support frames. Two fixing blocks are fixedly connected to both sides of the loading box, and the outer walls of the two fixing blocks have limit slots. This utility model uses a lever to move a movable block, causing the limit pins to retract. At this time, one end of the limit pin retracts into the mounting base. Then, the loading box is placed at the bottom of the UAV fuselage, with the side fixing blocks positioned at both ends of the mounting base. Releasing the lever causes the limit pins to spring out and insert into the limit slots on the outer walls of the fixing blocks, thus easily achieving a locking installation between the loading box and the UAV fuselage.
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Description

Technical Field

[0001] This utility model belongs to the field of medium-sized UAV technology, specifically relating to a mounting and locking mechanism for medium-sized UAVs. Background Technology

[0002] Medium-sized training drones, as core equipment in the field of professional drone training, play a crucial role in improving trainees' operational skills and knowledge. Their takeoff weight ranges from 25 to 150 kilograms, giving them many characteristics suitable for training. In terms of performance, these drones have excellent payload and endurance capabilities. Taking common models as an example, they can carry several kilograms of simulated mission payloads and have a flight time ranging from 30 to 60 minutes, providing trainees with ample practical flight time to simulate various real-world operational scenarios, such as logistics delivery simulations and power line inspection route flights.

[0003] Currently, in the use of existing medium-sized drones, a loading box is usually installed on the bottom of the drone for loading. These loading boxes are usually locked to the drone with screws. While this locking method can ensure the stability of the loading box, it often requires tools to complete the disassembly and installation process, and it also takes a lot of time, thus reducing the convenience of assembly and locking. Utility Model Content

[0004] The purpose of this utility model is to provide a mounting and locking mechanism for medium-sized UAVs, which aims to solve the problem that in the existing technology, during the use of medium-sized UAVs, a loading box is usually installed on the bottom of the UAV for loading. These loading boxes are usually locked to the UAV with screws. Although this locking installation method can ensure the stability of the loading box, it often requires tools to complete the disassembly and installation process, and also takes a lot of time, thus reducing the convenience of assembly and locking.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mounting and locking mechanism for a medium-sized unmanned aerial vehicle (UAV), comprising a UAV fuselage, four frames mounted on the outer wall of the UAV fuselage, fan blades mounted on one end of the four frames, two support frames mounted on the bottom of the UAV fuselage, a loading box mounted between the two support frames, two fixing blocks fixedly connected to both sides of the loading box, limit slots formed on the outer walls of the two fixing blocks, two mounting seats fixedly connected to the bottom of the UAV fuselage, springs disposed inside the two mounting seats, movable blocks connected to the ends of the springs, and limit pins fixedly connected to one end of the movable blocks.

[0006] As a preferred embodiment of the mounting and locking mechanism for a medium-sized unmanned aerial vehicle (UAV) according to this utility model, the two mounting seats are symmetrically distributed on both sides of the loading box.

[0007] As a preferred embodiment of the mounting and locking mechanism for a medium-sized unmanned aerial vehicle (UAV) according to this utility model, the end of the limiting pin away from the movable block is sized to match the limiting slot.

[0008] As a preferred embodiment of the mounting and locking mechanism for a medium-sized unmanned aerial vehicle (UAV) according to this utility model, the loading box can form an elastic locking structure with the UAV body through a fixed block, a limiting slot, a mounting base, a spring, a movable block, and a limiting pin.

[0009] As a preferred embodiment of the mounting and locking mechanism for a medium-sized UAV of this utility model, a partition is fixedly connected inside the loading box, a bidirectional lead screw runs through the outer wall of the loading box, two threaded sleeves are threadedly connected to the outer wall of the bidirectional lead screw, a connecting rod is fixedly connected to the outer wall of the two threaded sleeves, a connecting block is connected to the top of one end of the connecting rod, and a limit plate is connected to one end of the connecting block.

[0010] As a preferred embodiment of the mounting and locking mechanism for a medium-sized unmanned aerial vehicle (UAV) according to this utility model, a guide rod is fixedly connected inside the loading box, and one end of the connecting rod is sleeved on the outer wall of the guide rod.

[0011] As a preferred embodiment of the mounting and locking mechanism for a medium-sized unmanned aerial vehicle (UAV) according to this utility model, two limiting plates are provided, and the two limiting plates are symmetrically distributed on the top of the partition.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By moving the movable block with the lever, the limit pin retracts. At this time, one end of the limit pin will be retracted into the mounting base. Then, the loading box is placed at the bottom of the drone body, and the side fixing blocks are positioned at both ends of the mounting base. At this time, by releasing the lever, the limit pin will pop out under the action of the spring and insert into the limit slot on the outer wall of the fixing block, thus enabling convenient locking and installation between the loading box and the drone body.

[0014] By placing the item between two limiting plates and then rotating the double-ended screw clockwise, the two threaded sleeves connected to the outer wall can drive the connecting rod to move towards each other along the guide rod. At the same time, the connecting block will drive the limiting plates to move towards each other as well, thereby limiting the items on both sides. Finally, the door is closed, which can effectively prevent the items from shifting during flight transport and causing the medium-sized drone to tilt. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model from a bottom view;

[0018] Figure 3 This is a schematic diagram of the structural structure of this utility model from a bottom view.

[0019] Figure 4 This is an enlarged structural schematic diagram of the present invention (A).

[0020] Figure 5 This is an enlarged structural schematic diagram of the present invention, B.

[0021] In the diagram: 1. UAV fuselage; 2. Frame; 3. Fan blades; 4. Support frame; 5. Loading box; 6. Fixing block; 7. Limiting slot; 8. Mounting base; 9. Spring; 10. Movable block; 11. Limiting pin; 12. Partition plate; 13. Two-way lead screw; 14. Threaded sleeve; 15. Connecting rod; 16. Connecting block; 17. Limiting plate; 18. Guide rod. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5 The present invention provides the following technical solution: a mounting and locking mechanism for a medium-sized unmanned aerial vehicle (UAV), comprising a UAV body 1, four frames 2 mounted on the outer wall of the UAV body 1, fan blades 3 mounted on one end of the four frames 2, two support frames 4 mounted on the bottom of the UAV body 1, a loading box 5 mounted between the two support frames 4, two fixing blocks 6 fixedly connected to the two sides of the loading box 5 respectively, and limit slots 7 opened on the outer wall of the two fixing blocks 6, two mounting seats 8 fixedly connected to the bottom of the UAV body 1, springs 9 being provided inside the two mounting seats 8, movable blocks 10 being connected to the ends of the springs 9, and limit pins 11 fixedly connected to one end of the movable blocks 10.

[0024] Preferably, two mounting bases 8 are symmetrically distributed on both sides of the loading box 5, and the end of the limiting pin 11 away from the movable block 10 is matched with the size of the limiting slot 7. The loading box 5 can form an elastic locking structure with the UAV body 1 through the fixing block 6, the limiting slot 7, the mounting base 8, the spring 9, the movable block 10, and the limiting pin 11.

[0025] In practical use, the movable block 10 is moved by the lever to retract the limit pin 11. At this time, one end of the limit pin 11 will be retracted into the mounting base 8. Then, the loading box 5 is placed at the bottom of the drone body 1, and the side fixing block 6 is positioned at both ends of the mounting base 8. At this time, by releasing the lever, the limit pin 11 will pop out under the action of the spring 9 and insert into the limit slot 7 on the outer wall of the fixing block 6, so as to conveniently realize the locking installation between the loading box 5 and the medium-sized drone.

[0026] Conversely, when disassembling the loading box 5, the movable block 10 is moved by the lever to cause the limit pin 11 to retract. At this time, one end of the limit pin 11 will disengage from the limit slot 7, and then the loading box 5 will fall under the action of gravity, thus enabling convenient disassembly from the drone body 1.

[0027] Preferably, a partition 12 is fixedly connected inside the loading box 5, and a bidirectional lead screw 13 passes through the outer wall of the loading box 5. Two threaded sleeves 14 are threadedly connected to the outer wall of the bidirectional lead screw 13, and a connecting rod 15 is fixedly connected to the outer wall of the two threaded sleeves 14. A connecting block 16 is connected to the top of one end of the connecting rod 15, and a limiting plate 17 is connected to one end of the connecting block 16. A guide rod 18 is fixedly connected inside the loading box 5, and one end of the connecting rod 15 is sleeved on the outer wall of the guide rod 18. Two limiting plates 17 are provided, and the two limiting plates 17 are symmetrically distributed on the top of the partition 12.

[0028] In practical use, the item is placed between the two limiting plates 17, and then the two-way lead screw 13 is rotated clockwise so that the two threaded sleeves 14 connected to the outer wall can drive the connecting rod 15 to move towards each other along the guide rod 18. At the same time, the connecting block 16 will drive the limiting plates 17 to move towards each other, thereby limiting the items on both sides. Finally, the door is closed, which can effectively prevent the items from shifting during flight transport and causing the medium-sized drone to tilt.

[0029] Conversely, by rotating the bidirectional lead screw 13 counterclockwise, the two threaded sleeves 14 connected to its outer wall can drive the connecting rod 15 to move in opposite directions along the guide rod 18. At the same time, the connecting block 16 will drive the limiting plate 17 to move in opposite directions as well. The two limiting plates 17 will move away from the item clamped by the middle limiting plate until the item can be taken out by opening the door lock on the loading box 5.

[0030] Working principle: First, by moving the movable block 10 with the lever, the limiting pin 11 retracts, causing one end of the limiting pin 11 to retract into the mounting base 8. Then, the loading box 5 is placed at the bottom of the drone body 1, ensuring that the side fixing blocks 6 are positioned at both ends of the mounting base 8. Releasing the lever causes the limiting pin 11 to pop out under the action of the spring 9 and insert into the limiting slot 7 on the outer wall of the fixing block 6, thus easily achieving the locking installation between the loading box 5 and the drone body 1. Next, the item is placed between the two limiting plates 17, and then the bidirectional lead screw 13 is rotated clockwise, causing the two threaded sleeves 14 connected to its outer wall to move and connect... The rod 15 moves towards the guide rod 18, and at the same time the connecting block 16 will drive the limiting plate 17 to move towards the same direction, thereby limiting the two sides of the item. Finally, the box door is closed, which can effectively prevent the item from shifting during flight and causing the medium-sized drone to tilt. When the item needs to be taken out, the two-way lead screw 13 is rotated counterclockwise, so that the two threaded sleeves 14 connected to its outer wall can drive the connecting rod 15 to move towards the guide rod 18. At the same time, the connecting block 16 will drive the limiting plate 17 to move towards the same direction. The two limiting plates 17 will move away from the item clamped by the middle limiting plate until they are far away from the item. Finally, the item can be taken out by opening the door lock on the loading box 5.

[0031] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A medium-sized unmanned aerial vehicle with a carrying locking mechanism, comprising an unmanned aerial vehicle body (1), characterized in that: Four frames (2) are installed on the outer wall of the drone fuselage (1). One end of each frame (2) is equipped with a fan blade (3). Two support frames (4) are installed at the bottom of the drone fuselage (1). A loading box (5) is installed between the two support frames (4). Two fixing blocks (6) are fixedly connected to both sides of the loading box (5). Limiting slots (7) are opened on the outer walls of the two fixing blocks (6). Two mounting seats (8) are fixedly connected to the bottom of the drone fuselage (1). Springs (9) are installed inside the two mounting seats (8). A movable block (10) is connected to the end of the spring (9). A limiting pin (11) is fixedly connected to one end of the movable block (10).

2. The carrying and locking mechanism for medium-sized unmanned aerial vehicles according to claim 1, characterized in that: The two mounting bases (8) are symmetrically distributed on both sides of the loading box (5).

3. The carrying and locking mechanism for medium-sized unmanned aerial vehicles according to claim 1, characterized in that: The end of the limiting pin (11) away from the movable block (10) is matched with the size of the limiting slot (7).

4. The carrying and locking mechanism for medium-sized unmanned aerial vehicles according to claim 1, characterized in that: The loading box (5) can form an elastic engagement structure with the UAV body (1) through a fixed block (6), a limiting slot (7), a mounting base (8), a spring (9), a movable block (10), and a limiting pin (11).

5. The carrying and locking mechanism for medium-sized unmanned aerial vehicles according to claim 1, characterized in that: The loading box (5) is fixedly connected to a partition (12), and a two-way screw rod (13) runs through the outer wall of the loading box (5). The outer wall of the two-way screw rod (13) is threaded with two threaded sleeves (14), and the outer walls of the two threaded sleeves (14) are fixedly connected with a connecting rod (15). One end of the connecting rod (15) is connected to a connecting block (16), and one end of the connecting block (16) is connected to a limit plate (17).

6. The carrying and locking mechanism for medium-sized unmanned aerial vehicles according to claim 5, characterized in that: The loading box (5) is fixedly connected to a guide rod (18), and one end of the connecting rod (15) is sleeved on the outer wall of the guide rod (18).

7. The carrying and locking mechanism for medium-sized unmanned aerial vehicles according to claim 5, characterized in that: There are two limiting plates (17), and the two limiting plates (17) are symmetrically distributed on the top of the partition (12).