Quick-release protective cover structure for propeller of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of protective covers, in particular to a quick-release protective cover structure for a propeller of an unmanned aerial vehicle. According to the technical scheme, the unmanned aerial vehicle comprises an unmanned aerial vehicle body and further comprises unmanned aerial vehicle arms fixedly installed on the two sides of the unmanned aerial vehicle body, unmanned aerial vehicle propeller blades are arranged on the unmanned aerial vehicle arms, a fixing plate is fixedly connected to the unmanned aerial vehicle arms, a protective cover is arranged on the fixing plate, and a protective top cover is hinged to the top of the protective cover. The connecting stability is improved while the protective cover is rapidly disassembled and assembled, stable limiting of connecting components of the protective cover is completed, blowing is automatically conducted before an unmanned aerial vehicle takes off and after landing is completed, dust attached to the surface of a propeller is removed, the performance and efficiency of the propeller are kept, and the service life of the unmanned aerial vehicle is prolonged. And the flying potential safety hazard caused by dust accumulation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of protective cover technology, and in particular to a quick-release protective cover structure for drone propellers. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and their own program control devices. They have no cockpit but are equipped with autopilots, program control devices, and other equipment. Ground control systems track, locate, remotely control, telemetry, and transmit digital data to them. With the development and popularization of UAV technology, UAVs have gradually been applied to various industries.

[0003] To protect the propellers of drones, multiple protective covers are often installed around them. In order to improve the efficiency of installation and disassembly, snap-on quick-release structures are often used for connection. However, during the long-term flight of drones, especially in complex terrain or bad weather conditions, the fuselage will vibrate. The connection parts of the snap-on protective cover may gradually loosen due to long-term vibration, affecting the protective effect of the cover on the propeller, and may even fall off during flight, causing safety accidents. Therefore, this application proposes a quick-release protective cover structure for drone propellers. Utility Model Content

[0004] The purpose of this invention is to address the problem in the background technology that, under complex terrain or severe weather conditions, the fuselage will vibrate, and the connection parts of the snap-on protective cover may gradually loosen due to long-term vibration, affecting the protective effect of the cover on the propeller, or even falling off during flight and causing safety accidents. This invention proposes a quick-release protective cover structure for UAV propellers.

[0005] The technical solution of this utility model is: a quick-release protective cover structure for a drone propeller, including the drone fuselage, and further comprising:

[0006] The drone arms are fixedly installed on both sides of the drone fuselage. The drone arms are equipped with drone propeller blades. The drone arms are fixedly connected to the fixing plates. The fixing plates are equipped with protective covers. The top of the protective covers is hinged with a protective top cover.

[0007] A limiting and stabilizing mechanism is mounted on a fixed plate for the stable connection of the protective cover;

[0008] A cleaning device, which is installed on a protective top cover, is used for the automatic cleaning of dust adhering to the propeller blades of the drone.

[0009] Optionally, a connecting plate is fixedly installed at the bottom of the protective cover, and the fixed plate has a slot that matches the connecting plate.

[0010] Optionally, the limiting and stabilizing mechanism includes a fixing block fixedly installed at the bottom of the fixing plate, hinge plates fixed on both sides of the protective cover, a first L-shaped support rod and a second L-shaped support rod respectively hinged on the hinge plates, a locking block fixedly connected to one end of the second L-shaped support rod, a locking groove matching the locking block on the first L-shaped support rod, and a through groove for the first L-shaped support rod and the second L-shaped support rod to enter on the fixing block.

[0011] Optionally, an insertion hole is provided between the fixing block and the through groove, a limit rod is provided in the insertion hole, and a limit groove matching the limit rod is provided on one side of the inner wall of the fixing block.

[0012] Optionally, the card block is provided with a positioning hole that matches the limiting rod.

[0013] Optionally, the cleaning device includes a chute disposed on the bottom wall of the protective top cover, a slider slidably installed in the chute, a mounting plate fixedly connected to the slider, an air pump fixedly installed on the mounting plate, and a spray pipe disposed on the air pump.

[0014] Optionally, a lead screw threadedly connected to the slider is rotatably installed inside the slide groove, and a micro motor is fixedly installed on one side of the slide groove, with the output shaft of the micro motor fixedly connected to the lead screw.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] This utility model, by setting a hinge plate, a first L-shaped support rod, a second L-shaped support rod, a fixing block, a limiting rod, and a limiting groove, utilizes the rotation adjustment of the first and second L-shaped support rods to allow them to enter the through groove and be locked in place. In conjunction with the tightening of the limiting rod, it is locked into the limiting groove, thereby achieving reinforcement and limiting of the protective cover, making the connection of the protective cover more stable and less prone to loosening, and improving the safety of use.

[0017] Furthermore, by setting up a protective top cover, slider, air pump, and nozzle, the rotation of the lead screw allows the slider to drive the air pump to move and adjust, expanding the area cleaned by the nozzle. This enables the nozzle to automatically clean the dust adhering to the surface of the UAV propeller, helping to maintain the performance and efficiency of the propeller and reducing flight safety hazards caused by dust accumulation. Attached Figure Description

[0018] Figure 1 A schematic diagram of one embodiment of the present invention is provided;

[0019] Figure 2 This is a schematic diagram of the connection structure of the fixed block;

[0020] Figure 3 This is a schematic diagram of the connection structure of the first L-shaped support rod;

[0021] Figure 4 This is a schematic diagram of the slider connection structure.

[0022] Reference numerals: 1. UAV fuselage; 2. UAV arm; 3. UAV propeller blade; 4. Fixing plate; 5. Protective cover; 6. Protective top cover; 7. Hinge plate; 8. First L-shaped support rod; 9. Second L-shaped support rod; 10. Fixing block; 11. Through groove; 12. Limiting rod; 13. Insertion hole; 14. Connecting plate; 15. Nozzle; 16. Limiting groove; 17. Locking block; 18. Positioning hole; 19. Sliding groove; 20. Sliding block; 21. Lead screw; 22. Micro motor; 23. Mounting plate; 24. Air pump. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0025] 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.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0029] like Figure 1 and Figure 2 As shown, the present invention proposes a quick-release protective cover structure for a drone propeller, including a drone body 1 and drone arms 2 fixedly installed on both sides of the drone body 1. Drone propeller blades 3 are provided on the drone arms 2. The drone propeller blades 3 are also connected to existing mechanisms such as rotating shafts, which are all components of drones in the prior art. They will not be described in detail here, but can be found in the patent document with publication number CN 108725811 A.

[0030] In addition, a fixed plate 4 is fixedly connected to the drone arm 2, and a protective cover 5 is provided on the fixed plate 4. A protective top cover 6 is hinged to the top of the protective cover 5, and a connecting plate 14 is fixedly installed at the bottom of the protective cover 5. The fixed plate 4 has a slot that matches the connecting plate 14. By inserting the connecting plate 14 into the slot, the connection of the protective cover 5 can be initially completed. The size of the protective cover 5 matches the drone propeller blade 3, which is beneficial to the protection of the drone propeller blade 3.

[0031] like Figure 2 and Figure 3As shown, the device also includes a limiting and stabilizing mechanism, which is set on the fixed plate 4 for the stable connection of the protective cover 5. The limiting and stabilizing mechanism includes a fixing block 10 fixedly installed at the bottom of the fixed plate 4. The fixing block 10 is fixedly connected to the bottom of the fixed plate 4 by bolts. Hinged plates 7 are fixed on both sides of the protective cover 5. A first L-shaped support rod 8 and a second L-shaped support rod 9 are respectively hinged on the hinged plates 7. The first L-shaped support rod 8 and the second L-shaped support rod 9 are the same size and are symmetrically arranged on both sides of the protective cover 5.

[0032] Furthermore, a locking block 17 is fixedly connected to one end of the second L-shaped support rod 9. A slot matching the locking block 17 is provided on the first L-shaped support rod 8. A through groove 11 is provided on the fixing block 10 for the first L-shaped support rod 8 and the second L-shaped support rod 9 to enter. By rotating and adjusting the first L-shaped support rod 8 and the second L-shaped support rod 9, they can be successfully inserted into the through groove 11, and the locking block 17 can be locked into the slot, thus completing the connection between the first L-shaped support rod 8 and the second L-shaped support rod 9. At the same time, the protective cover 5 is fixedly connected to the fixing plate 4.

[0033] Furthermore, an insertion hole 13 is provided between the fixing block 10 and the through groove 11. A limit rod 12 is provided in the insertion hole 13. A limit groove 16 matching the limit rod 12 is provided on one side of the inner wall of the fixing block 10. A positioning hole 18 matching the limit rod 12 is provided on the locking block 17. The lower end of the limit rod 12 is provided with a threaded part, and the inner wall of the limit groove 16 is also provided with a matching threaded groove. By inserting the limit rod 12 through the positioning hole 18 into the limit groove 16, the limit rod 12 is rotated to firmly fix the first L-shaped support rod 8 and the second L-shaped support rod 9, making the connection of the protective cover 5 more secure and stable.

[0034] like Figure 3 and Figure 4 As shown, the device also includes a cleaning device, which is installed on the protective top cover 6 for automatically cleaning dust adhering to the drone propeller blades 3. The cleaning device includes a groove 19 set on the bottom wall of the protective top cover 6, a slider 20 is slidably installed in the groove 19, a mounting plate 23 is fixedly connected to the slider 20, an air pump 24 is fixedly installed on the mounting plate 23, and a nozzle 15 is provided on the air pump 24. By using the compressed air of the air pump 24 in conjunction with the nozzle 15, the dust adhering to the surface of the propeller can be blown away, which helps to maintain the performance and efficiency of the propeller and reduce flight safety hazards caused by dust accumulation.

[0035] It is worth noting that a lead screw 21, threadedly connected to the slider 20, is rotatably installed inside the slide groove 19. A micro motor 22 is fixedly installed on one side of the slide groove 19, and the output shaft of the micro motor 22 is fixedly connected to the lead screw 21. When the micro motor 22 is started, the lead screw 21 rotates, and the slider 20 drives the air pump 24 to move back and forth to adjust, thereby expanding the cleaning area of ​​the spray nozzle 15 and improving the cleaning effect.

[0036] In this embodiment, before the drone takes off, the connecting plate 14 is first inserted into the slot to complete the initial connection of the protective cover 5. Then, the first L-shaped support rod 8 and the second L-shaped support rod 9 are rotated and adjusted so that the first L-shaped support rod 8 and the second L-shaped support rod 9 successfully enter the through groove 11 of the fixing block 10, and the locking block 17 is inserted into the locking groove to realize the fixed connection of the first L-shaped support rod 8 and the second L-shaped support rod 9. Then, the limiting rod 12 is inserted through the positioning hole 18 into the limiting groove 16, and tightened to make the limiting rod 12 firmly limit and fix the first L-shaped support rod 8 and the second L-shaped support rod 9, so that the connection of the protective cover 5 is more stable. Before the drone takes off or after landing, the micro motor 22 is started to rotate the lead screw 21. The slider 20 drives the air pump 24 to move back and forth along the direction of the slide groove 19, expanding the area of ​​the nozzle 15 to blow and clean, effectively removing the dust attached to the propeller surface, which helps to maintain the performance and efficiency of the propeller and reduce flight safety hazards caused by dust accumulation.

[0037] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A quick-release protective cover structure for a drone propeller, comprising a drone fuselage (1), characterized in that, Also includes: The drone arms (2) are fixedly installed on both sides of the drone body (1). The drone arms (2) are equipped with drone propeller blades (3). The drone arms (2) are fixedly connected with a fixing plate (4). The fixing plate (4) is equipped with a protective cover (5). The top of the protective cover (5) is hinged with a protective top cover (6). A limiting and stabilizing mechanism is provided on a fixed plate (4) for the stable connection of the protective cover (5); A cleaning device is installed on the protective top cover (6) for the automatic cleaning of dust adhering to the propeller blades (3) of the UAV.

2. The quick-release protective cover structure for a drone propeller according to claim 1, characterized in that, The bottom of the protective cover (5) is fixedly installed with a connecting plate (14), and the fixing plate (4) has a slot that matches the connecting plate (14).

3. The quick-release protective cover structure for a drone propeller according to claim 1, characterized in that, The limiting and stabilizing mechanism includes a fixing block (10) fixedly installed at the bottom of the fixing plate (4). The protective cover (5) is fixed with hinge plates (7) on both sides. The hinge plates (7) are respectively hinged with a first L-shaped support rod (8) and a second L-shaped support rod (9). One end of the second L-shaped support rod (9) is fixedly connected with a locking block (17). The first L-shaped support rod (8) is provided with a locking groove that matches the locking block (17). The fixing block (10) is provided with a through groove (11) for the first L-shaped support rod (8) and the second L-shaped support rod (9) to enter.

4. The quick-release protective cover structure for a drone propeller according to claim 3, characterized in that, An insertion hole (13) is provided between the fixing block (10) and the through groove (11). A limit rod (12) is provided in the insertion hole (13). A limit groove (16) matching the limit rod (12) is provided on one side of the inner wall of the fixing block (10).

5. The quick-release protective cover structure for a drone propeller according to claim 4, characterized in that, The card block (17) is provided with a positioning hole (18) that matches the limiting rod (12).

6. The quick-release protective cover structure for a drone propeller according to claim 1, characterized in that, The cleaning device includes a slid groove (19) set on the bottom wall of the protective top cover (6), a slider (20) is slidably installed in the slid groove (19), an mounting plate (23) is fixedly connected to the slider (20), an air pump (24) is fixedly installed on the mounting plate (23), and a spray pipe (15) is provided on the air pump (24).

7. The quick-release protective cover structure for a drone propeller according to claim 6, characterized in that, A lead screw (21) that is threadedly connected to the slider (20) is rotatably installed in the slide groove (19). A micro motor (22) is fixedly installed on one side of the slide groove (19). The output shaft of the micro motor (22) is fixedly connected to the lead screw (21).

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