Propeller protection cover of unmanned aerial vehicle

Abstract

The unmanned aerial vehicle propeller protection cover comprises an unmanned aerial vehicle and a protection cover body, and a fixing mechanism facilitating fixing of the protection cover body to the unmanned aerial vehicle is arranged between the unmanned aerial vehicle and the protection cover body. The protective cover comprises a first annular framework, a first connecting framework, a second annular framework, a second connecting framework, a through hole, a fixing ring and a third annular framework, the first annular framework is arranged on the outer side of the unmanned aerial vehicle, and the through hole is formed in the first annular framework. The protection cover is installed on the outer side of the unmanned aerial vehicle through the fixing mechanism, propellers on the unmanned aerial vehicle are protected through the first annular framework, the first connecting framework, the second annular framework, the second connecting framework and the third annular framework, contact of external foreign matter is blocked, and therefore safe operation of the propellers during flight is guaranteed; propeller damage caused by foreign matter is prevented, and the applicability of the unmanned aerial vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the field of protection mechanisms, and specifically to a propeller protection cover for a drone. Background Art

[0002] Unmanned aerial vehicle, abbreviated as "drone", with the English abbreviation "UAV", is an unpiloted aircraft controlled by radio remote control equipment and self - contained program control devices, or operated completely or intermittently autonomously by an on - board computer; compared with piloted aircraft, drones are often more suitable for tasks that are too "dull, dirty or dangerous".

[0003] When a drone is in flight, it is carried out by the rotation of the propellers. The existing propellers of drones are in an exposed state. When the drone passes through obstacles such as trees, the propellers of the drone are likely to collide with foreign objects, resulting in damage to the propellers, which causes the drone to be unable to fly normally and reduces the applicability of the drone. Therefore, there is an urgent need for a device to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a propeller protection cover for a drone to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A propeller protection cover for a drone, including a drone and a protection cover. A fixing mechanism is provided between the drone and the protection cover to facilitate the fixing of the protection cover on the drone. The protection cover includes a first annular frame, a first connecting frame, a second annular frame, a second connecting frame, a perforation, a fixing ring, and a third annular frame. The first annular frame is arranged outside the drone. The perforation is opened on the first annular frame. The fixing ring is adhesively fixed on the outside of the first annular frame. The first connecting frame is fixed to the top of the first annular frame. There are several first connecting frames, which are equidistantly installed on the top of the first annular frame. The second annular frame is fixed to the top of the first connecting frame. The second connecting frame is fixed to the top of the second annular frame. There are several second connecting frames, which are equidistantly installed on the top of the second annular frame. The third annular frame is fixed to the top of the second connecting frame.

[0006] Preferably, the drone further includes a motor, a rotating shaft and a propeller. The motor is fixed on the drone, the rotating shaft is fixed at the output end of the motor, the propeller is fixed on the rotating shaft, and a plurality of protective covers are provided. Every two of them form a group, and a group of protective covers are arranged above and below each propeller. When in use, the protective covers are installed on the outside of the drone through a fixing mechanism. The first annular frame, the first connecting frame, the second annular frame, the second connecting frame and the third annular frame protect the propellers on the drone, block foreign objects from the outside, so as to ensure the safe operation of the propellers during flight, prevent the propellers from being damaged by foreign objects, and improve the applicability of the drone.

[0007] Preferably, the fixing mechanism includes a hollow rod, a baffle, a steel wire rope, an operating block, a cavity, a chute, a limiting block and a spring. The hollow rod is fixed on the outside of the drone. A plurality of hollow rods are provided and symmetrically installed on the upper and lower sides of the drone. The hollow rod fits with the perforation. The baffle is fixed at the center inside the hollow rod. The baffle is a hollow plate. The chute is opened on the outside of the hollow rod. The limiting block is slidably arranged inside the chute. The top end of the limiting block away from the hollow rod is a smooth arc surface. The spring is fixed between the limiting block and the baffle. The cavity is opened inside the drone. The cavity is annular. The steel wire rope is fixed on one side of the limiting block. The other side of the steel wire rope passes through the baffle, then penetrates into the cavity, and finally extends to the outside of the drone. The operating block is arranged on the outside of the drone. The end of the steel wire rope extending to the outside of the drone is fixed on the operating block. When in use, the perforation on the protective cover passes through the hollow rod. At this time, the first annular frame squeezes the arc end of the limiting block, causing the limiting block to move towards the inside of the hollow rod and compress the spring until the first annular frame contacts the drone. At the same time, the fixing ring moves to the lower end of the limiting block. At this time, the spring drives the limiting block to reset and move to the upper end of the fixing ring, thus restricting the position of the first annular frame and fixing the protective cover on the outside of the drone, facilitating the installation of the protective cover. When disassembling, pull the operating block. At this time, the operating block pulls the steel wire rope, so as to pull the limiting block into the hollow rod and compress the spring, making the limiting block away from the upper end of the fixing ring. Then move it upward to disassemble the protective cover, facilitating the quick disassembly of the protective cover.

[0008] Preferably, four perforations are equidistantly opened on the first annular frame.

[0009] Preferably, the number of fixing rings is the same as the number of perforations, and the inner diameter of the fixing ring is the same as the inner diameter of the perforation.

[0010] Preferably, the inner diameter of the second annular frame is smaller than the inner diameter of the first annular frame.

[0011] Preferably, the center of the inner diameter of the fixing ring and the center of the inner diameter of the perforation are on the same straight line.

[0012] Preferably, the inner diameter of the third annular frame is smaller than that of the second annular frame.

[0013] Preferably, two sliding grooves are provided and symmetrically arranged on both sides of the hollow rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. When in use, the protective cover of the present invention is installed on the outside of the drone through the fixing mechanism. The propeller on the drone is protected by the first annular frame, the first connecting frame, the second annular frame, the second connecting frame and the third annular frame, blocking foreign objects from the outside, so as to ensure the safe operation of the propeller during flight, prevent damage to the propeller caused by foreign objects, and improve the applicability of the drone;

[0016] 2. When in use, the present invention also passes the perforation on the protective cover through the hollow rod. At this time, the first annular frame presses the arc end of the limiting block, causing the limiting block to move into the hollow rod, squeezing the spring until the first annular frame contacts the drone. At the same time, the fixing ring moves to the lower end of the limiting block. At this time, the spring drives the limiting block to reset and move to the upper end of the fixing ring, thus restricting the position of the first annular frame and fixing the protective cover on the outside of the drone, facilitating the installation of the protective cover. When disassembling, pull the operation block. At this time, the operation block pulls the steel wire rope, so as to pull the limiting block into the hollow rod and squeeze the spring, making the limiting block away from the upper end of the fixing ring, and then moving upward to disassemble the protective cover, facilitating the quick disassembly of the protective cover. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of a propeller protective cover of a drone according to the present invention;

[0018] Figure 2 It is a side view of a propeller protective cover of a drone according to the present invention;

[0019] Figure 3 It is a bottom view of a propeller protective cover of a drone according to the present invention;

[0020] Figure 4 It is an enlarged schematic view A of a propeller protective cover of a drone according to the present invention;

[0021] Figure 5 It is an enlarged schematic view B of a propeller protective cover of a drone according to the present invention.

[0022] In the figure: 1, unmanned aerial vehicle; 2, motor; 3, propeller; 4, protective cover; 5, first annular skeleton; 6, first connecting skeleton; 7, second annular skeleton; 8, second connecting skeleton; 9, third annular skeleton; 10, operation block; 11, fixing ring; 12, cavity; 13, hollow rod; 14, perforation; 15, baffle; 16, limit block; 17, spring; 18, steel wire rope; 19, chute; 20, rotating shaft. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-5 , the present invention provides a technical solution: a propeller protective cover for an unmanned aerial vehicle, including an unmanned aerial vehicle 1 and a protective cover 4. A fixing mechanism for conveniently fixing the protective cover 4 on the unmanned aerial vehicle 1 is provided between the unmanned aerial vehicle 1 and the protective cover 4. The protective cover 4 includes a first annular skeleton 5, a first connecting skeleton 6, a second annular skeleton 7, a second connecting skeleton 8, a perforation 14, a fixing ring 11, and a third annular skeleton 9. The first annular skeleton 5 is arranged outside the unmanned aerial vehicle 1. The perforation 14 is opened on the first annular skeleton 5. Four perforations 14 are equidistantly opened on the first annular skeleton 5. The fixing ring 11 is adhesively fixed to the outside of the first annular skeleton 5. The number of the fixing rings 11 is the same as the number of the perforations 14, and the inner diameter of the fixing ring 11 is the same as the inner diameter of the perforation 14. The center of the inner diameter of the fixing ring 11 and the center of the inner diameter of the perforation 14 are located on the same straight line. The first connecting skeleton 6 is welded and fixed to the top of the first annular skeleton 5. A plurality of the first connecting skeletons 6 are arranged and equidistantly installed on the top of the first annular skeleton 5. The second annular skeleton 7 is welded and fixed to the top of the first connecting skeleton 6. The inner diameter of the second annular skeleton 7 is smaller than the inner diameter of the first annular skeleton 5. The second connecting skeleton 8 is welded and fixed to the top of the second annular skeleton 7. A plurality of the second connecting skeletons 8 are arranged and equidistantly installed on the top of the second annular skeleton 7. The third annular skeleton 9 is welded and fixed to the top of the second connecting skeleton 8. The inner diameter of the third annular skeleton 9 is smaller than the inner diameter of the second annular skeleton 7.

[0025] The drone 1 further includes a motor 2, a rotating shaft 20, and a propeller 3. The motor 2 is fixed on the drone 1 through a mounting bracket. The rotating shaft 20 is fixed at the output end of the motor 2 through a coupling. The propeller 3 is fixed on the rotating shaft 20 through bolts. There are several protective covers 4, with every two as a group. A group of protective covers 4 is arranged above and below each propeller 3. When in use, the protective covers 4 are installed on the outside of the drone 1 through a fixing mechanism. The propeller 3 on the drone 1 is protected by the first annular frame 5, the first connecting frame 6, the second annular frame 7, the second connecting frame 8, and the third annular frame 9, blocking foreign objects from the outside from coming into contact, thereby ensuring the safe operation of the propeller 3 during flight, preventing damage to the propeller 3 caused by foreign objects, and improving the applicability of the drone 1.

[0026] The fixing mechanism includes a hollow rod 13, a baffle 15, a steel wire rope 18, an operation block 10, a cavity 12, a chute 19, a limiting block 16, and a spring 17. The hollow rod 13 is welded and fixed on the outside of the drone 1. There are several hollow rods 13, symmetrically installed on the upper and lower sides of the drone 1. The hollow rod 13 fits with the through hole 14. The baffle 15 is welded and fixed at the central position inside the hollow rod 13. The baffle 15 is a hollow plate. The chute 19 is opened on the outside of the hollow rod 13. There are two chutes 19, symmetrically opened on both sides of the hollow rod 13. The limiting block 16 is slidably arranged inside the chute 19. The top end of the limiting block 16 away from the hollow rod 13 is a smooth arc surface. The spring 17 is welded and fixed between the limiting block 16 and the baffle 15. The cavity 12 is opened inside the drone 1. The cavity 12 is annular. The steel wire rope 18 is welded and fixed on one side of the limiting block 16. The other side of the steel wire rope 18 passes through the baffle 15 movably, then penetrates into the cavity 12, and finally extends to the outside of the drone 1. The operation block 10 is placed on the outside of the drone 1. The end of the steel wire rope 18 extending to the outside of the drone 1 is welded and fixed on the operation block 10. When in use, the through hole 14 on the protective cover 4 is passed through the hollow rod 13. At this time, the first annular frame 5 presses the arc end of the limiting block 16, causing the limiting block 16 to move towards the inside of the hollow rod 13, compressing the spring 17 until the first annular frame 5 contacts the drone 1. At the same time, the fixing ring 11 moves to the lower end of the limiting block 16. At this time, the spring 17 drives the limiting block 16 to reset and move to the upper end of the fixing ring 11, thereby restricting the position of the first annular frame 5 and fixing the protective cover 4 on the outside of the drone 1, facilitating the installation of the protective cover 4. When disassembling, pull the operation block 10. At this time, the operation block 10 pulls the steel wire rope 18, so as to pull the limiting block 16 into the inside of the hollow rod 13 and compress the spring 17, causing the limiting block 16 to move away from the upper end of the fixing ring 11. Then, moving it upward can disassemble the protective cover 4, facilitating the quick disassembly of the protective cover 4.

[0027] Working principle: When in use, the protective cover 4 is installed on the outside of the drone 1 through a fixing mechanism. The propellers 3 on the drone 1 are protected by the first annular frame 5, the first connecting frame 6, the second annular frame 7, the second connecting frame 8 and the third annular frame 9, blocking foreign objects from the outside from contacting, thus ensuring the safe operation of the propellers 3 during flight, preventing damage to the propellers 3 caused by foreign objects, and improving the applicability of the drone 1; when in use, the through holes 14 on the protective cover 4 are passed through the hollow rod 13. At this time, the first annular frame 5 presses the arc end of the limit block 16, causing the limit block 16 to move into the hollow rod 13 and compress the spring 17 until the first annular frame 5 contacts the drone 1. At the same time, the fixing ring 11 moves to the lower end of the limit block 16. At this time, the spring 17 drives the limit block 16 to reset and move to the upper end of the fixing ring 11, thereby restricting the position of the first annular frame 5 and fixing the protective cover 4 on the outside of the drone 1, facilitating the installation of the protective cover 4. When disassembling, pull the operation block 10. At this time, the operation block 10 pulls the steel wire rope 18, so as to pull the limit block 16 into the hollow rod 13 and compress the spring 17, causing the limit block 16 to move away from the upper end of the fixing ring 11, and then the protective cover 4 can be disassembled by moving it upward, facilitating the quick disassembly of the protective cover 4.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drone propeller protection cover, comprising a drone (1) and a protection cover (4), characterized in that: A fixing mechanism for facilitating the fixing of the protective cover (4) on the unmanned aerial vehicle (1) is provided between the unmanned aerial vehicle (1) and the protective cover (4). The protective cover (4) includes a first annular frame (5), a first connecting frame (6), a second annular frame (7), a second connecting frame (8), a perforation (14), a fixing ring (11), and a third annular frame (9). The first annular frame (5) is arranged outside the unmanned aerial vehicle (1). The perforation (14) is formed on the first annular frame (5). The fixing ring (11) is adhesively fixed to the outside of the first annular frame (5). The first connecting frame (6) is fixed to the top of the first annular frame (5). A plurality of the first connecting frames (6) are provided and are equidistantly installed at the top of the first annular frame (5). The second annular frame (7) is fixed to the top of the first connecting frame (6). The second connecting frame (8) is fixed to the top of the second annular frame (7). A plurality of the second connecting frames (8) are provided and are equidistantly installed at the top of the second annular frame (7). The third annular frame (9) is fixed to the top of the second connecting frame (8).

2. The drone propeller protection cover according to claim 1, wherein: The unmanned aerial vehicle (1) further includes a motor (2), a rotating shaft (20), and a propeller (3). The motor (2) is fixed on the unmanned aerial vehicle (1). The rotating shaft (20) is fixed at the output end of the motor (2). The propeller (3) is fixed on the rotating shaft (20). A plurality of the protective covers (4) are provided, with every two forming a group. A group of protective covers (4) is provided above and below each propeller (3).

3. The drone propeller protection cover according to claim 2, characterized in that: The fixing mechanism includes a hollow rod (13), a baffle (15), a steel wire rope (18), an operating block (10), a cavity (12), a chute (19), a limiting block (16), and a spring (17). The hollow rod (13) is fixed to the outside of the unmanned aerial vehicle (1). A plurality of the hollow rods (13) are provided and are symmetrically installed on the upper and lower sides of the unmanned aerial vehicle (1). The hollow rod (13) fits with the perforation (14). The baffle (15) is fixed at the central position inside the hollow rod (13). The baffle (15) is a hollow plate. The chute (19) is formed on the outside of the hollow rod (13). The limiting block (16) is slidably arranged inside the chute (19). The top of the limiting block (16) is a smooth arc surface away from the hollow rod (13). The spring (17) is fixed between the limiting block (16) and the baffle (15). The cavity (12) is formed inside the unmanned aerial vehicle (1). The cavity (12) is annular. The steel wire rope (18) is fixed to one side of the limiting block (16). The other side of the steel wire rope (18) passes through the baffle (15) movably, then penetrates into the cavity (12), and finally extends to the outside of the unmanned aerial vehicle (1). The operating block (10) is arranged outside the unmanned aerial vehicle (1). The end of the steel wire rope (18) extending to the outside of the unmanned aerial vehicle (1) is fixed to the operating block (10).

4. The drone propeller protection cover according to claim 3, wherein: Four perforations (14) are equidistantly formed on the first annular frame (5).

5. The drone propeller protection cover according to claim 4, wherein: The number of the fixing rings (11) is the same as the number of the perforations (14), and the inner diameter of the fixing rings (11) is the same as the inner diameter of the perforations (14).

6. The drone propeller protection cover according to claim 5, characterized in that: The inner diameter of the second annular skeleton (7) is smaller than the inner diameter of the first annular skeleton (5).

7. The propeller protection cover of a drone according to claim 6, characterized in that: The center of the inner diameter of the fixing ring (11) and the center of the inner diameter of the perforation (14) are located on the same straight line.

8. The propeller protection cover of a drone according to claim 7, wherein: The inner diameter of the third annular skeleton (9) is smaller than the inner diameter of the second annular skeleton (7).

9. The drone propeller protection cover according to claim 8, characterized in that: Two sliding grooves (19) are provided, and are symmetrically provided on both sides of the hollow rod (13).

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