Blade protection devices and drones

Abstract

This utility model relates to the field of unmanned aerial vehicle (UAV) technology, providing a propeller protection device and a UAV. The propeller protection device includes: a mounting component and multiple protective components, which are connected end-to-end to form a ring structure; the mounting component is installed on the protective components and is used to connect to the UAV arm, so that the propeller blade is located at the center of the ring structure. This utility model, by connecting multiple protective components end-to-end in a splicing manner to form a ring structure, facilitates installation and replacement; by installing the mounting component on the protective components and using the mounting component to connect to the UAV arm, the UAV propeller blade is positioned at the center of the ring structure; during UAV flight, it effectively protects the propeller blade, preventing collisions with obstacles, and has high installability, thus ensuring the UAV can stably complete inspection tasks.

Description

Technical Field

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

[0002] As the application scenarios for drones continue to expand, their application in non-exposed spaces is becoming increasingly prominent. For example, in large indoor buildings, it is necessary to inspect the building structure and equipment operation status; in underground tunnels, it is necessary to detect the stability of the tunnel and identify potential safety hazards. These inspection and detection tasks in non-exposed spaces require drones to have flexible flight capabilities.

[0003] However, unexposed spaces are typically limited, confined, and contain numerous obstacles. Small drones flying in unexposed spaces are highly susceptible to collisions with surrounding objects, which can damage drone components, compromise flight safety, and even lead to mission failure. As a critical component generating lift during drone flight, damage to the propeller disc from a collision directly impacts the drone's flight performance and stability. Therefore, adding protective devices to the propeller disc can effectively reduce collision damage, improve the drone's collision safety characteristics in unexposed spaces, and ensure safe flight in complex environments.

[0004] Currently, in the field of micro-drone platforms, propeller disks are generally small, mostly below 10 inches. Due to the limitation of propeller disk size, the design and implementation of protective devices are relatively easy, and they are already widely used in the market. However, for propeller disks with sizes mostly between 13 and 24 inches, it is difficult to design and implement protective devices in an integrated manner. In some underground caves or large indoor warehouses with complex structures, small drones cannot safely and stably complete inspection tasks due to the lack of effective protective devices. Utility Model Content

[0005] This invention provides a propeller protection device and a drone to solve the problem that drones in the prior art are prone to collisions in non-exposed spaces and cannot safely and stably complete inspection tasks.

[0006] This utility model provides a blade protection device, comprising: a plurality of protective components, the plurality of protective components being connected end to end in a ring structure; and a mounting component, the mounting component being installed on the protective components and used to connect with the boom so that the blade is located at the center of the ring structure.

[0007] According to the present invention, a blade protection device includes a body, a first connecting block, and a second connecting block. The first connecting block is disposed at the top of a first end of the body, and the second connecting block is disposed at the bottom of a second end of the body. The first connecting block has a first mounting hole, and the second connecting block has a second mounting hole. The first connecting block of the protective component is disposed at the top of the second connecting block of the adjacent protective component, and fasteners pass through the first mounting hole and the second mounting hole in sequence to connect the first connecting block and the second connecting block.

[0008] According to the present invention, a blade protection device further includes an upper fixing member and a lower fixing member; the upper fixing member is disposed on the top of the connection between two adjacent protective members, and the lower fixing member is disposed on the bottom of the connection between two adjacent protective members, and the upper fixing member and the lower fixing member are matched to connect two adjacent protective members; wherein, when the mounting member is disposed on the top of the connection between two adjacent protective members, the mounting member is matched with one of the lower fixing members to connect two adjacent protective members.

[0009] According to the present invention, a blade protection device is provided, which further includes a plurality of reinforcing members. Each of the main bodies is provided with a mounting groove. The mounting groove and the reinforcing members are both extended along the extension direction of the main body, and the reinforcing members are disposed in the mounting groove.

[0010] According to the present invention, a blade protection device is provided, wherein the mounting groove is located on the side of the protective component away from the center of the annular structure.

[0011] According to the present invention, a blade protection device is provided, wherein both ends of the reinforcing member are provided with through holes, and both ends of the reinforcing member are pressed between the first connecting block and the second connecting block, and the through holes, the first mounting hole and the second mounting hole are provided correspondingly.

[0012] According to the present invention, a blade protection device is provided, wherein the bottom of the mounting groove is provided with a slot, the slot is located between the first connecting block and the second connecting block, and the reinforcing member is engaged in the slot.

[0013] According to the present invention, a blade protection device further includes: a plurality of support members; a connector located at the center of the annular structure, the connector having a plurality of first connection holes on its outer periphery; a second connection hole on the side of each upper fixing member near the center of the annular structure; one end of each support member being connected to the first connection hole, and the other end of each support member being connected to the second connection hole.

[0014] According to the present invention, the number of protective components and the number of lower fixing components are n, and the number of supporting components and the number of upper fixing components are both n-1.

[0015] This utility model also provides a drone, including a plurality of propeller protection devices as described in any of the above claims, and a plurality of arms, each of which has a propeller blade connected to its end. Each of the arms is connected to the propeller protection device via a corresponding mounting component, and the propeller blade is located at the center of the propeller protection device.

[0016] The propeller protection device and drone provided by this utility model form a ring structure by connecting multiple protective components end to end in sequence and splicing them together, which is convenient for installation and replacement. By installing the mounting component on the protective component and connecting the mounting component to the drone arm, the drone's propeller is placed at the center of the ring structure. When the drone is flying, it can effectively protect the propeller and prevent the propeller from colliding with obstacles. It has high installability and thus ensures that the drone can stably complete the inspection task. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the blade protection device provided by this utility model.

[0019] Figure 2 This is an exploded view of the blade protection device provided by this utility model.

[0020] Figure 3 This is a top view of the blade protection device provided by this utility model.

[0021] Figure 4 This is a front view of the blade protection device provided by this utility model.

[0022] Figure 5 This is a partial enlarged view of the connection between two adjacent protective components provided by this utility model.

[0023] Figure 6 This is an exploded view of the connection between two adjacent protective components provided by this utility model.

[0024] Figure label:

[0025] 10. Protective component; 11. Body; 111. Mounting slot; 112. Slot; 12. First connecting block; 121. First mounting hole; 13. Second connecting block; 131. Second mounting hole;

[0026] 20. Installation components;

[0027] 31. Upper fixing component; 311. Second connecting hole; 32. Lower fixing component;

[0028] 40. Reinforcing member; 41. Through hole;

[0029] 50. Support member; 60. Connector; 61. First connecting part; 611. First connecting hole; 62. Second connecting part. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0032] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0036] The following is combined Figures 1-6 This invention describes a propeller protection device and a drone.

[0037] When a drone is in flight, the surface formed by the rotating propeller blades is called the propeller disk. In order to protect the propeller blades and prevent them from colliding with obstacles, this utility model proposes a propeller blade protection device located on the outer periphery of the propeller blades to protect them.

[0038] The blade protection device provided in this embodiment includes a mounting member 20 and multiple protective members 10. The multiple protective members 10 are connected end to end to form a ring structure. The mounting member 20 is installed on the protective members 10 and is used to connect to the boom so that the blade is located at the center of the ring structure.

[0039] The blade protection device in this utility model is a spliced ​​protection device. For example... Figure 1 and Figure 2As shown, the propeller protection device provided in this embodiment includes six protective components 10, each with an arc-shaped structure. The six protective components 10 are connected end-to-end to form a ring structure, which is larger than the propeller disk formed during the rotation of the target propeller. A mounting component 20 is installed on the protective component 10, either by snap-fit ​​or by bolt fastening. The mounting component 20 is used to connect to the UAV's arm, positioning the propeller blade at the end of the arm at the center of the ring structure. During UAV flight, the propeller blade rotates within the ring structure, and the protective component 10 effectively protects the propeller blade from interference, preventing accidents caused by propeller failure.

[0040] In one embodiment, the protective component 10 is manufactured using laser nylon sintering 3D printing technology, and the main material is nylon.

[0041] It should be noted that the number of protective components 10 in this embodiment of the present invention is not limited to six, and can be set according to the actual situation.

[0042] The propeller protection device provided in this embodiment of the utility model connects multiple protective components 10 end to end in a series to form a ring structure, which is convenient for installation and replacement. By installing the mounting component 20 on the protective component 10, the mounting component 20 is used to connect with the arm, thereby setting the drone's propeller at the center of the ring structure. When the drone is flying, it can effectively protect the propeller and prevent the propeller from colliding with obstacles. It has high installation stability, thereby ensuring that the drone can stably complete the inspection task.

[0043] In some embodiments of this utility model, the protective member 10 includes a body 11, a first connecting block 12, and a second connecting block 13. The first connecting block 12 is disposed at the top of the first end of the body 11, and the second connecting block 13 is disposed at the bottom of the second end of the body 11. The first connecting block 12 is provided with a first mounting hole 121, and the second connecting block 13 is provided with a second mounting hole 131. During installation, the first connecting block 12 of the protective member 10 is disposed on top of the second connecting block 13 of the adjacent protective member 10, and fasteners pass through the first mounting hole 121 and the second mounting hole 131 in sequence to connect the first connecting block 12 and the second connecting block 13, thereby connecting the two adjacent protective members 10.

[0044] like Figure 2 and Figure 6 As shown, the first connecting block 12 is located at the top of the first end of the body 11, and extends in a direction away from the body 11. The first connecting block 12 is provided with a first mounting hole 121. The second connecting block 13 is located at the bottom of the second end of the body 11, and extends in a direction away from the body 11. The second connecting block 13 is provided with a second mounting hole 131.

[0045] In the actual installation process, the first end of the first body 11 is connected to the second end of the second body 11, that is, the first connecting block 12 on the first body 11 is connected to the second connecting block 13 on the second body 11. The first connecting block 12 on the first body 11 is located on top of the second connecting block 13 on the second body 11. The first mounting hole 121 corresponds to the second mounting hole 131. Fasteners pass through the first mounting hole 121 and the second mounting hole 131 in sequence, thereby fixing the first connecting block 12 and the second connecting block 13 together, that is, fixing two adjacent protective components 10 together. This process is repeated to connect multiple protective components 10 to form a ring structure.

[0046] In this embodiment of the invention, the number of first mounting holes 121 on the first connecting block 12 can be multiple, and the multiple first mounting holes 121 are spaced apart along the extending direction of the first connecting block 12. Similarly, the number of second mounting holes 131 on the second connecting block 13 can also be multiple, and the multiple second mounting holes 131 are spaced apart along the extending direction of the second connecting block 13. The distance between two adjacent first mounting holes 121 is equal to the distance between two adjacent second mounting holes 131. Fasteners can sequentially connect the first connecting block 12 and the second connecting block 13 through the corresponding first mounting holes 121 and second mounting holes 131, resulting in good stability and high strength. Figure 6 As shown, there are two first mounting holes 121 and two second mounting holes 131. The fasteners in this embodiment of the invention can be bolts and nuts.

[0047] In some embodiments of this utility model, the blade protection device further includes an upper fixing member 31 and a lower fixing member 32. The upper fixing member 31 covers the top of the connection between two adjacent protective members 10, and the lower fixing member 32 covers the bottom of the connection between two adjacent protective members 10. The upper fixing member 31 and the lower fixing member 32 are matched to connect the two adjacent protective members 10.

[0048] like Figure 2 and Figure 6 As shown, the upper fixing member 31 has a first groove with its opening facing downwards, and the width of the first groove is adapted to the width of the body 11; the lower fixing member 32 has a second groove, and the width of the second groove is adapted to the width of the body 11. When two adjacent protective members 10 are connected by the first connecting block 12 and the second connecting block 13, the upper fixing member 31 is engaged at the top of the connection between the two adjacent protective members 10, and the lower fixing member 32 is engaged at the bottom of the connection between the two adjacent protective members 10, protecting the connection and improving the strength of the connection.

[0049] In one embodiment, the upper fixing member 31 is provided with a third mounting hole, and the lower fixing member 32 is provided with a fourth mounting hole. When the upper fixing member 31 covers the top of the connection between two adjacent protective members 10, and the lower fixing member 32 covers the bottom of the connection between two adjacent protective members 10, the centers of the third mounting hole, the first mounting hole 121, the second mounting hole 131, and the fourth mounting hole are collinear. The fastener passes through the third mounting hole, the first mounting hole 121, the second mounting hole 131, and the fourth mounting hole in sequence, thereby fixing the upper fixing member 31, the first connecting block 12, the second connecting block 13, and the lower fixing member 32 together, preventing the upper fixing member 31 and the lower fixing member 32 from moving. It has good stability and high strength.

[0050] In one embodiment, the number of third mounting holes, the number of fourth mounting holes, the number of first mounting holes 121, and the number of second mounting holes 131 are the same and correspond one-to-one. For example... Figure 2 As shown, there are 2 of each.

[0051] In some embodiments of this utility model, the mounting member 20 is installed at the connection between two adjacent protective members 10. For example... Figure 3 and Figure 4 As shown, when the mounting member 20 is placed on top of the connection between two adjacent protective members 10, the mounting member 20 is matched with a lower fixing member 32 to connect the two adjacent protective members 10.

[0052] Specifically, there are 6 protective components 10, 5 upper fixing components 31, 6 lower fixing components 32, and 1 mounting component 20. There are 6 connection points between two adjacent protective components 10, 5 of which are fixed by matching the upper fixing component 31 and the lower fixing component 32, and one of which can be fixed by matching the mounting component 20 with the lower fixing component 32.

[0053] The bottom of the mounting piece 20 is provided with a third groove, the opening of the third groove is downward, and the width of the third groove is adapted to the width of the body 11. When two adjacent protective pieces 10 are connected by the first connecting block 12 and the second connecting block 13, the mounting piece 20 is locked at the top of the connection between the two adjacent protective pieces 10, and the lower fixing piece 32 is locked at the bottom of the connection between the two adjacent protective pieces 10 to protect the connection.

[0054] In one embodiment, the mounting member 20 is provided with a fifth mounting hole. When the mounting member 20 covers the top of the connection between two adjacent protective members 10, and the lower fixing member 32 covers the bottom of the connection between two adjacent protective members 10, the centers of the fifth mounting hole, the first mounting hole 121, the second mounting hole 131, and the fourth mounting hole are collinear. Fasteners pass through the fifth mounting hole, the first mounting hole 121, the second mounting hole 131, and the fourth mounting hole in sequence, thereby fixing the mounting member 20, the first connecting block 12, the second connecting block 13, and the lower fixing member 32 together, preventing the mounting member 20 and the lower fixing member 32 from moving, resulting in good stability and high strength. In one embodiment, the number of fifth mounting holes, the number of fourth mounting holes, the number of first mounting holes 121, and the number of second mounting holes 131 are the same and correspond one-to-one. Figure 2 As shown, there are 2 of each.

[0055] Furthermore, a fixing clamp is provided at the top of the mounting component 20, and the drone's arm is connected to the propeller protection device through the fixing clamp. This utility model increases the overall structural installation rigidity by matching and fixing the mounting component 20 and the lower fixing component 32 at the connection point of two adjacent protective components 10.

[0056] In some embodiments of the present invention, the blade protection device further includes a plurality of reinforcing members 40, each of which is provided with at least one reinforcing member 40 to enhance the strength of the protective member 10.

[0057] In some embodiments of this utility model, each body 11 is provided with a mounting groove 111, and both the mounting groove 111 and the reinforcing member 40 extend along the extending direction of the body 11, with the reinforcing member 40 disposed within the mounting groove 111. In some embodiments of this utility model, the reinforcing member 40 may be a carbon fiber reinforcing member 40.

[0058] In some embodiments of this utility model, the first connecting block 12 and the second connecting block 13 are at least partially disposed within the mounting groove 111. For example... Figure 6 As shown, the first connecting block 12 is at least partially disposed within the mounting groove 111, wherein the first connecting block 12 is connected to the upper wall of the mounting groove 111, and the second connecting block 13 is at least partially disposed within the mounting groove 111, wherein the second connecting block 13 is connected to the lower wall of the mounting groove 111. When the first mounting hole 121 is located within the first connecting block 12 in the mounting groove 111, the top surface of the body 11 has a corresponding first through hole; when the second mounting hole 131 is located within the second connecting block 13 in the mounting groove 111, the bottom surface of the body 11 has a corresponding second through hole, to facilitate the connection of fasteners.

[0059] In some embodiments of this utility model, the mounting groove 111 is located on the side of the protective member 10 away from the center of the annular structure, that is, the side closer to the center of the annular structure is a plane, which can protect the blade and prevent the blade from entering the mounting groove 111.

[0060] In some embodiments of this utility model, such as Figure 6 As shown, both ends of the reinforcing member 40 are provided with through holes 41, such as... Figure 5 As shown, both ends of the reinforcing member 40 are pressed between the first connecting block 12 and the second connecting block 13. The through hole 41, the first mounting hole 121 and the second mounting hole 131 are correspondingly provided. The fastener can pass through the first mounting hole 121, the through hole 41 and the second mounting hole 131 in sequence to realize the connection between the first connecting block 12, the reinforcing member 40 and the second connecting block 13. Its structure is more stable and has high structural strength.

[0061] In some embodiments of this utility model, the bottom of the mounting groove 111 is provided with a slot 112, which is located between the first connecting block 12 and the second connecting block 13. The slot 112 extends along the extension direction of the body 11, and the reinforcing member 40 is secured in the slot 112, which has good stability.

[0062] In some embodiments of this utility model, the bottom of the mounting groove 111 is provided with a retaining groove 112, which is located between the first connecting block 12 and the second connecting block 13. The retaining groove 112 extends along the extension direction of the body 11, and the reinforcing member 40 is engaged in the retaining groove 112. The two ends of the reinforcing member 40 are provided with through holes 41, and the ends of the reinforcing member 40 are pressed between the first connecting block 12 and the second connecting block 13. The through holes 41, the first mounting hole 121, and the second mounting hole 131 are correspondingly arranged, thereby stably fixing the reinforcing member 40 in the protective member 10.

[0063] In some embodiments of this utility model, the blade protection device further includes a connector 60 and multiple support members 50. The connector 60 is located at the center of the annular structure, and multiple first connection holes 611 are provided on the outer periphery of the connector 60. Each upper fixing member 31 has a second connection hole 311 on the side near the center of the annular structure. One end of each support member 50 is connected to the first connection hole 611, and the other end of the support member 50 is connected to the second connection hole 311. It can be understood that both ends of the support member 50 can be connected to the first connection hole 611 and the second connection hole 311 by interference fit. The support member 50 in the embodiments of this utility model can be a support tube.

[0064] In one embodiment, the connector 60 includes a first connecting portion 61 and a second connecting portion 62. The first connecting portion 61 is disposed above the second connecting portion 62 and is connected to the second connecting portion 62 to form a connector 60 with an internal receiving space for mounting electronic components. A plurality of first connecting holes 611 are provided on the side of the first connecting portion 61 near the center of the annular structure.

[0065] In some embodiments of this utility model, the number of protective members 10 and the number of lower fixing members 32 are n, and the number of supporting members 50 and upper fixing members 31 is n-1. For example... Figure 1 and Figure 3 As shown, there are 6 protective components 10 and 6 lower fixing components 32, and 5 upper fixing components 31.

[0066] This utility model embodiment also provides a drone, including multiple propeller protection devices as described in any of the above embodiments. The drone also includes multiple arms, each arm having a propeller blade connected to its end. Each arm is connected to the propeller protection device via a corresponding mounting member 20, with the propeller blade located at the center of the propeller protection device. In one embodiment, the mounting member 20 is equipped with a pipe clamp, and the arm is fixed to the propeller protection device via the pipe clamp. During drone operation, the propeller blades can rotate within the annular structure, preventing obstacles from colliding with the propeller blades, ensuring high safety and thus stably completing the inspection task.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A paddle protection device, characterized in that, include: Multiple protective components are connected end to end to form a ring structure; The mounting component is installed on the protective component and is used to connect to the boom so that the blades are located at the center of the annular structure.

2. The paddle protector of claim 1, wherein, The protective component includes a body, a first connecting block, and a second connecting block. The first connecting block is located at the top of a first end of the body, and the second connecting block is located at the bottom of a second end of the body. The first connecting block has a first mounting hole, and the second connecting block has a second mounting hole. The first connecting block of the protective component is disposed on top of the second connecting block of the adjacent protective component, and the fasteners pass through the first mounting hole and the second mounting hole in sequence to connect the first connecting block and the second connecting block.

3. The paddle protector of claim 2, wherein, It also includes an upper fixing component and a lower fixing component; The upper fixing member is provided on the top of the connection between two adjacent protective members, and the lower fixing member is provided on the bottom of the connection between two adjacent protective members. The upper fixing member and the lower fixing member are matched to connect two adjacent protective members. In the case where the mounting member covers the top of the connection between two adjacent protective members, the mounting member is matched with one of the lower fixing members to connect the two adjacent protective members.

4. The paddle protector of claim 2, wherein, The blade protection device also includes multiple reinforcing members. Each of the main bodies is provided with a mounting groove. The mounting groove and the reinforcing member both extend along the extension direction of the main body, and the reinforcing member is located in the mounting groove.

5. The paddle protector of claim 4, wherein, The mounting groove is located on the side of the protective component away from the center of the annular structure.

6. The paddle protector of claim 4, wherein, Both ends of the reinforcing member are provided with through holes, and both ends of the reinforcing member are pressed between the first connecting block and the second connecting block. The through holes, the first mounting hole and the second mounting hole are provided accordingly.

7. The blade protection device according to claim 4 or 6, characterized in that, The bottom of the mounting groove is provided with a slot, which is located between the first connecting block and the second connecting block, and the reinforcing member is engaged in the slot.

8. The paddle protector of claim 3, wherein, Also includes: Multiple support components; A connector, located at the center of the annular structure, has a plurality of first connection holes on its outer periphery; Each of the upper fixing members has a second connecting hole on the side near the center of the annular structure; one end of each support member is connected to the first connecting hole, and the other end of the support member is connected to the second connecting hole.

9. The paddle protector of claim 8, wherein, The number of the protective components and the number of the lower fixing components is n, and the number of the supporting components and the number of the upper fixing components are both n-1.

10. A drone, characterized in that, The device includes multiple blade protection devices as described in any one of claims 1 to 9, and also includes multiple arms, each arm having a blade connected to its end, each arm being connected to the blade protection device via a corresponding mounting member, the blade being located at the center of the blade protection device.

Images