Fan blade protection structure for civil air defense patrol unmanned aerial vehicle

Abstract

The utility model discloses a fan blade protection structure for civil air defense patrol unmanned plane belongs to unmanned plane technical field, has solved the rotor protection frame of existing device only sets up below the rotor, and the protection effect of the upper rotor is poor, and inconveniently, the rotor reduces the resistance received when contacting with external obstacles problem, including unmanned plane main part, unmanned plane main part's four corners all fixed mounting has the cantilever, the cantilever is away from unmanned plane main part one end and is provided with motor, the output of motor fixed mounting has the rotor, the bottom of unmanned plane main body front side wall is provided with shooting subassembly, the cantilever is away from unmanned plane main part one end and is provided with the protection assembly for protecting the rotor. Through the setting of protection assembly, can be contacted with the obstacle around the rotor through the protection cover and the protection rod, and then avoid the rotor and the damage situation of the obstacle contact, reach the all -round protection of the rotor purposes.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically a fan blade protection structure for civil defense patrol UAVs. Background Technology

[0002] Civil defense patrol drones are unmanned aerial vehicle systems specifically designed for civil air defense, primarily used for various patrol, monitoring, and emergency response missions. These drones integrate advanced flight control systems, high-definition cameras, infrared thermal imagers, gas sensors, and other equipment, enabling them to perform patrol missions in complex environments.

[0003] A search revealed that patent application number 202121007107.0 discloses a civil defense patrol drone, which includes a drone body, a flight support, a rotor protection frame, a power motor, a rotor, an obstacle avoidance laser radar, a lighting unit, a bottom shock absorber, a front-facing camera, and a flight status light. The rotor protection frame, power motor, and rotor are installed at the end of the flight support. The obstacle avoidance laser radar is installed on the upper part of the drone body shell, the bottom shock absorber is installed directly below the end of the flight support, and the front-facing camera is installed at the front of the drone body.

[0004] Although the civil defense patrol drone uses a rotor guard to protect its rotor, the rotor guard is only located below the rotor, which provides poor protection above the rotor and makes it difficult for the rotor to reduce drag when it comes into contact with external obstacles.

[0005] Therefore, we propose a fan blade protection structure for civil defense patrol drones. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a blade protection structure for civil defense patrol drones, which solves the problems of existing devices having a rotor protection frame that is only located below the rotor, resulting in poor protection of the area above the rotor and making it difficult for the rotor to reduce the resistance it encounters when in contact with external obstacles.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a fan blade protection structure for a civil defense patrol drone, comprising a drone body, with cantilever arms fixedly installed at each of the four corners of the drone body, a motor provided at the end of the cantilever arm away from the drone body, a rotor fixedly installed at the output end of the motor, and a shooting component provided at the bottom of the front sidewall of the drone body.

[0008] The end of the cantilever furthest from the main body of the drone is equipped with a protective component for protecting the rotor.

[0009] The protective assembly includes a sleeve connected to the end of the cantilever away from the main body of the drone. A support column is fixedly installed on the top surface of the sleeve. The motor is fixedly installed on the top surface of the support column. A rotating ring is rotatably fitted on the outer surface of the support column through a bearing ring. A protective rod distributed in a ring array is connected to the outer surface of the rotating ring. A protective cover is installed on the top of the protective rod.

[0010] Preferably, a locking groove is provided in the middle of the sleeve near the main body of the drone. The sleeve is sleeved on the outer surface of the main body of the drone. The upper and lower parts of the sleeve located in the locking groove are locked to the outer surface of the cantilever by bolts. The sleeve can be locked to the outer surface of the cantilever by using bolts and nuts in cooperation.

[0011] Preferably, the outer surface of the rotating ring is fixedly mounted with connecting plates arranged in a ring array. The positions and numbers of the connecting plates correspond to those of the guard rods. Each guard rod includes an arc-shaped portion and a plug-in portion. The plug-in portion is located at the top of the arc-shaped portion, and the bottom end of the arc-shaped portion is detachably mounted on the side wall of the connecting plate by bolts and nuts, so as to facilitate the removal of the guard rod from the connecting plate.

[0012] Preferably, the bottom surface of the protective cover has a corresponding number of insertion slots that match the specifications of the insertion part. The insertion part is movably fitted inside the insertion slot. The top surface of the insertion slot has a through-hole. The top surface of the insertion part has a threaded hole corresponding to the position of the through-hole. The insertion part is fixed inside the insertion slot by a screw. The threaded end of the screw passes through the through-hole and is threaded inside the threaded hole. This facilitates fixing the protective cover to the top of the protective rod and makes it easy to disassemble the protective cover.

[0013] Preferably, the top surface of the protective cover has evenly distributed ventilation holes, which facilitate air circulation around the rotor and avoid interfering with the flight of the drone.

[0014] This utility model provides a fan blade protection structure for civil defense patrol drones. It has the following beneficial effects:

[0015] 1. The blade protection structure of this civil defense patrol drone, through the setting of protective components, can contact obstacles located around the rotor via protective covers and protective rods, thereby avoiding damage to the rotor from contact with obstacles. This achieves the purpose of providing all-round protection for the rotor. When the protective covers and protective rods contact obstacles, under the action of friction, the protective covers, protective rods, and rotating rings can rotate on the support column, thereby reducing the drag encountered by the drone during flight and preventing the drone from being subjected to large impacts. This solves the problem that the rotor protection frame of the existing device is only set below the rotor, which has a poor protection effect on the top of the rotor and is not convenient for the rotor to reduce the drag encountered when it comes into contact with external obstacles.

[0016] 2. The fan blade protection structure of this civil defense patrol drone uses bolts and nuts to connect the connecting plate to the bottom of the protective rod, and screws to fix the plug part inside the plug slot, so as to facilitate the disassembly and replacement of the protective cover and the protective rod, making it simple and convenient to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the rotating ring and support column of this utility model;

[0021] Figure 5 This utility model Figure 4 A magnified structural diagram at point A;

[0022] Figure 6 This is a schematic diagram of the protective cover structure of this utility model;

[0023] Figure 7 This utility model Figure 5 A magnified structural diagram at point B.

[0024] In the diagram: 1. Drone body; 2. Cantilever; 3. Motor; 4. Rotor; 5. Camera assembly; 6. Protective assembly; 61. Sleeve; 611. Locking groove; 62. Support column; 63. Rotary ring; 64. Connecting plate; 65. Protective rod; 651. Arc-shaped part; 652. Plug-in part; 653. Threaded hole; 66. Protective cover; 661. Ventilation hole; 662. Plug-in groove; 663. Connecting hole. Detailed Implementation

[0025] 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.

[0026] Example 1:

[0027] like Figure 1-7 As shown: The drone includes a main body 1, with cantilever arms 2 fixedly mounted at each of its four corners. A motor 3 is mounted at the end of each cantilever arm 2 furthest from the main body 1, and a rotor 4 is fixedly mounted at the output end of the motor 3. A shooting component 5 is mounted at the bottom of the front sidewall of the main body 1. A protective component 6 for protecting the rotor 4 is mounted at the end of each cantilever arm 2 furthest from the main body 1. The protective component 6 includes a sleeve 61 connected to the end of the cantilever arm 2 furthest from the main body 1, a support column 62 fixedly mounted on the top surface of the sleeve 61, and the motor 3 fixedly mounted on the top surface of the support column 62. A rotating ring 63 is rotatably fitted onto the outer surface of the support column 62 via a bearing ring. A protective rod 65 arranged in a circular array is connected to the outer surface of the rotating ring 63. A protective cover 66 is installed at the top of the rotor. Through the setting of the protective component 6, the protective cover 66 and the protective rod 65 can contact the obstacles located around the rotor 4, thereby preventing the rotor 4 from being damaged by contact with the obstacles. This achieves the purpose of providing all-round protection for the rotor 4. When the protective cover 66 and the protective rod 65 contact the obstacle, under the action of friction, the protective cover 66, the protective rod 65 and the rotating ring 63 can rotate on the support column 62, thereby reducing the drag encountered by the drone during flight and preventing the drone from being subjected to large impacts. This solves the problem that the rotor protection frame of the existing device is only set below the rotor, which has a poor protection effect on the top of the rotor and is not convenient for the rotor to reduce the drag encountered when it comes into contact with external obstacles.

[0028] Example 2:

[0029] like Figure 1-7As shown: A locking groove 611 is provided in the middle of the sleeve 61 near the side of the drone body 1. The sleeve 61 is sleeved on the outer surface of the drone body 1. The upper and lower parts of the sleeve 61 located in the locking groove 611 are locked to the outer surface of the cantilever 2 by bolts. A connecting plate 64 distributed in a ring array is fixedly installed on the outer surface of the rotating ring 63. The position and number of the connecting plate 64 correspond to those of the protective rod 65. The protective rod 65 includes an arc-shaped part 651 and a plug part 652. The plug part 652 is located at the top of the arc-shaped part 651. The bottom end of the arc-shaped part 651 is detachably installed on the side wall of the connecting plate 64 by bolts and nuts. The bottom surface of the protective cover 66 has openings that match the specifications and number of the plug parts 652. The insertion slot 662 has an insertion part 652 that is movably fitted inside it. The top surface of the insertion slot 662 has a through-hole 663, and the top surface of the insertion part 652 has a threaded hole 653 corresponding to the position of the through-hole 663. The insertion part 652 is fixed inside the insertion slot 662 by screws. The threaded end of the screw passes through the through-hole 663 and is threaded into the inside of the threaded hole 653. The top surface of the protective cover 66 has evenly distributed ventilation holes 661. The connecting plate 64 is connected to the bottom end of the protective rod 65 by bolts and nuts, and the insertion part 652 is fixed inside the insertion slot 662 by screws, so as to facilitate the disassembly and replacement of the protective cover 66 and the protective rod 65, making it simple and convenient to use.

[0030] The working principle and usage process of this utility model: The blade protection structure of this anti-patrol drone, when in use, can prevent the rotor 4 from being damaged by contact with obstacles through the protective cover 66 and the protective rod 65. When the protective cover 66 and the protective rod 65 are in contact with the obstacle, the protective cover 66, the protective rod 65 and the rotating ring 63 can rotate on the support column 62 under the action of friction, thereby reducing the drag encountered by the drone during flight and preventing the drone from being subjected to large impacts.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fan blade protection structure for a civil defense patrol drone, comprising a drone body (1), wherein cantilever (2) is fixedly installed at each of the four corners of the drone body (1), a motor (3) is provided at the end of the cantilever (2) away from the drone body (1), a rotor (4) is fixedly installed at the output end of the motor (3), and a shooting component (5) is provided at the bottom of the front sidewall of the drone body (1); Its features are: The end of the cantilever (2) away from the main body (1) of the UAV is provided with a protective component (6) for protecting the rotor (4); The protective component (6) includes a sleeve (61) connected to the end of the cantilever (2) away from the main body (1) of the UAV. A support column (62) is fixedly installed on the top surface of the sleeve (61). The motor (3) is fixedly installed on the top surface of the support column (62). A rotating ring (63) is rotatably fitted on the outer surface of the support column (62) through a bearing ring. A protective rod (65) arranged in a ring array is connected to the outer surface of the rotating ring (63). A protective cover (66) is installed on the top of the protective rod (65).

2. The blade protection structure for a civil defense patrol drone according to claim 1, characterized in that: The sleeve (61) has a locking groove (611) in the middle of the side near the drone body (1). The sleeve (61) is fitted on the outer surface of the drone body (1). The upper and lower parts of the sleeve (61) located in the locking groove (611) are locked to the outer surface of the cantilever (2) by bolts.

3. The blade protection structure for a civil defense patrol drone according to claim 1, characterized in that: The outer surface of the rotating ring (63) is fixedly mounted with connecting plates (64) arranged in a ring array. The position and number of the connecting plates (64) correspond to those of the guard rods (65). The guard rods (65) include an arc-shaped part (651) and a plug-in part (652). The plug-in part (652) is located at the top of the arc-shaped part (651). The bottom end of the arc-shaped part (651) is detachably mounted on the side wall of the connecting plate (64) by bolts and nuts.

4. The blade protection structure for a civil defense patrol drone according to claim 3, characterized in that: The bottom surface of the protective cover (66) has a corresponding number of insertion slots (662) that match the specifications of the insertion part (652). The insertion part (652) is movably fitted inside the insertion slot (662). The top surface of the insertion slot (662) has a through connection hole (663). The top surface of the insertion part (652) has a threaded hole (653) that corresponds to the position of the connection hole (663). The insertion part (652) is fixed inside the insertion slot (662) by a screw. The threaded end of the screw passes through the connection hole (663) and is threaded inside the threaded hole (653).

5. The blade protection structure for a civil defense patrol drone according to claim 1, characterized in that: The top surface of the protective cover (66) is provided with evenly distributed ventilation holes (661).

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