Quick release structure for propeller of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and provides an unmanned aerial vehicle propeller quick dismounting structure which comprises a motor, a rotating column is fixedly arranged on the top face of the motor, a rectangular column is fixedly arranged on the top face of the rotating column, a threaded column is fixedly arranged on the top face of the rectangular column, and a mounting disc is movably inserted into the outer side of the rectangular column. A connecting cylinder is fixedly arranged in the middle of the top face of the mounting disc, the rectangular column is movably inserted into the inner side of the connecting cylinder, a connecting ring is movably connected to the top face of the mounting disc, the connecting cylinder is located on the inner side of the connecting ring, an inserting groove is formed in the outer wall of the connecting ring, and paddles are movably inserted into the inner side of the inserting groove. The propeller blades are movably connected with the connecting ring, the connecting ring can be conveniently disassembled and assembled, each propeller blade can be independently and rapidly disassembled and assembled, the unmanned aerial vehicle can be conveniently carried out, the propeller can be conveniently maintained and replaced, efficiency is improved, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a propeller quick-detachable structure for an unmanned aerial vehicle. Background Art

[0002] Unmanned aerial vehicle, referred to as "drone", is an unmanned aircraft controlled by radio remote control equipment and self-contained program control devices, or operated completely or intermittently autonomously by an on-board computer. Drones are currently used in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspections, disaster relief, film and television shooting, creating romance and other fields, which has greatly expanded the use of drones themselves. Developed countries are also actively expanding industry applications and developing drone technology.

[0003] Propellers are an important part of drones. Most drone propellers are too complicated to disassemble, which makes it very inconvenient to carry the drone due to its large size. In addition, when the drone propeller is damaged, it is too troublesome to disassemble and replace it.

[0004] Therefore, there is a need for a UAV propeller quick-disassembly structure that can quickly dismantle the UAV propeller for easy carrying, repair and replacement. Summary of the invention

[0005] In order to solve the above problems, the utility model proposes a UAV propeller quick-disassembly structure, which has the characteristics of convenient propeller disassembly and assembly, and convenient carrying and maintenance.

[0006] In order to achieve the above purpose, the utility model proposes the following specific solutions:

[0007] A quick-release structure for propellers of an unmanned aerial vehicle comprises a motor, a rotating column is fixedly provided in the middle of the top surface of the motor, a rectangular column is fixedly provided in the middle of the top surface of the rotating column, a threaded column is fixedly provided in the middle of the top surface of the rectangular column, a mounting plate is movably inserted on the outer side of the rectangular column, a connecting cylinder is fixedly provided in the middle of the top surface of the mounting plate, the rectangular column is movably inserted in the inner side of the connecting cylinder, a connecting ring is movably connected on the top surface of the mounting plate, the connecting cylinder is located on the inner side of the connecting ring, a plug-in groove is provided on the outer wall of the connecting ring, a blade is movably inserted in the inner side of the plug-in groove, a top cover is threadedly connected to the outer side of the threaded column, and the top cover is located above the connecting ring.

[0008] As an optimal technical solution for the quick-release structure of a drone propeller of the utility model, a fixing plate is fixedly provided on the outer wall of the connecting tube, a spring groove is provided in the middle of one side wall of the fixing plate, a sliding groove is provided on the edge of the top surface of the fixing plate, the sliding groove is connected to the inner side of the spring groove, a first spring is fixedly provided on the inner wall of one side of the spring groove, a limiting plate is fixedly provided at one end of the first spring, a sliding plate is fixedly provided on the top surface of the limiting plate, and the sliding plate passes through the sliding groove.

[0009] As a preferred technical solution for the quick-release structure of a propeller of a drone of the utility model, a limiting groove is provided on the inner wall of the connecting ring, and one end of the limiting plate is movably inserted into the inner side of the limiting groove.

[0010] As an optimal technical solution for the quick-release structure of a drone propeller of the utility model, a connecting plate is fixedly provided at one end of the blade, the connecting plate is movably plugged into the inner side of the plug-in slot, and a limiting hole is provided on the top surface of the connecting plate.

[0011] As an optimal technical solution for the quick-release structure of a drone propeller of the utility model, a movable hole is provided on the inner wall of one side of the plug-in slot, a pull rod is movably inserted into the inner side of the movable hole, a second spring is movably sleeved on the outer side of the lower end of the pull rod, the top end of the second spring is fixedly connected to the bottom surface of the connecting ring, the lower end of the second spring is fixedly connected to the pull rod, and the upper end of the pull rod is movably inserted into the inner side of the limiting hole.

[0012] As a preferred technical solution for the quick-release structure of a propeller of a drone of the utility model, a notch is provided on the edge of the top surface of the mounting plate, and the lower end of the pull rod is located inside the notch.

[0013] As an optimal technical solution for the quick-release structure of a drone propeller of the utility model, a rectangular hole is provided in the middle of the top surface of the mounting plate, the rectangular hole is connected to the inner side of the connecting tube, and the rectangular column is movably inserted into the inner side of the rectangular hole.

[0014] As a preferred technical solution for the quick-release structure of a propeller of a drone of the utility model, a thread groove is provided in the middle of the bottom surface of the top cover, and the thread column is threadedly connected to the inner side of the thread groove.

[0015] Compared with the existing technology, the utility model has the following beneficial effects:

[0016] The connecting ring connected to the blade of the utility model can be easily disassembled and assembled by unscrewing the top cover and then moving the two sliding plates toward the direction of the connecting tube with one hand to make the limit plate disengage from the limit groove, and the connecting ring can be removed by holding the blade with the other hand. Since one end of the limit plate is an inclined surface, when installing the connecting ring, it is only necessary to align the limit groove on the inner wall of the connecting ring with the limit plate in the vertical direction, and then press the connecting ring downward. The inner wall of the connecting ring squeezes the inclined surface of the limit plate to contract the first spring and move the limit plate. When the connecting ring contacts the mounting plate, one end of the inclined surface of the limit plate is just horizontally aligned with the limit groove, the first spring stretches, and pushes the limit plate to insert into the inner side of the limit groove. Then the top cover is screwed on to complete the installation. This solution can quickly remove the propeller, is easy to carry, and is quick to repair and replace the propeller, thereby improving work efficiency.

[0017] The blades of the utility model can be removed from the connecting ring. The blades can be removed by simply pulling the pull rod to disengage the pull rod from the limiting hole. Each blade can be disassembled individually, so that when a single blade is damaged, there is no need to replace the entire propeller. Only the damaged blade needs to be removed and replaced, which greatly saves maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to better describe the technical solution of the utility model in detail, the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a three-dimensional diagram of the overall structure provided by the utility model;

[0020] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0021] Figure 3 A three-dimensional diagram of the mounting plate of the utility model;

[0022] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 5 For this utility model Figure 2 A magnified schematic diagram of point B in the middle.

[0024] In the figure: 1. motor; 11. rotating column; 12. rectangular column; 13. threaded column; 2. mounting plate; 21. rectangular hole; 22. connecting tube; 23. fixing plate; 231. spring groove; 232. sliding groove; 233. first spring; 234. limiting plate; 235. sliding plate; 24. notch; 3. connecting ring; 31. limiting groove; 32. plug-in groove; 321. moving hole; 322. pull rod; 323. second spring; 4. paddle; 41. connecting plate; 411. limiting hole; 5. top cover; 51. threaded groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0026] See also Figure 1-5 As shown, the utility model provides the following technical solutions: a UAV propeller quick-release structure, including a motor 1 (the motor 1 is connected to the UAV body and is controlled to open and close by the UAV remote control. The UAV body is not drawn. The connection method between the motor 1 and the UAV body belongs to the prior art, so it is not described in detail), a rotating column 11 is fixedly provided in the middle of the top surface of the motor 1, a rectangular column 12 is fixedly provided in the middle of the top surface of the rotating column 11, and a threaded column 13 is fixedly provided in the middle of the top surface of the rectangular column 12. The motor 1 of this solution drives the rotating column 11, the rectangular column 12 and the threaded column 13 to rotate, thereby realizing the rotation of the propeller. The rectangular column 12 and the threaded column 13 are used for the installation and fixation of the propeller to ensure stability.

[0027] Reference Figure 1 , Figure 2 , Figure 3, Figure 4 and Figure 5 As shown, specifically, a connecting ring 3 is movably connected to the top surface of the mounting plate 2 for connecting the blade 4. The connecting tube 22 is located on the inner side of the connecting ring 3. A fixing plate 23 is fixedly provided on the outer wall of the connecting tube 22 for supporting a limiting plate 234. A spring groove 231 is provided in the middle of one side wall of the fixing plate 23 for connecting a first spring 233. A sliding groove 232 is provided on the edge of the top surface of the fixing plate 23 for sliding a sliding plate 235 therein. The sliding groove 232 is connected to the inner side of the spring groove 231. A first spring 233 is fixedly provided on the inner wall of one side of the spring groove 231 for providing an elastic driving force for the limiting plate 234. A limiting plate 234 is fixedly provided at one end of the first spring 233 for limiting the connecting ring 3. A sliding plate 235 is fixedly provided on the top surface of 234 for driving the limiting plate 234 to move. The sliding plate 235 passes through the sliding groove 232. A limiting groove 31 is provided on the inner wall of the connecting ring 3 for plugging in the limiting plate 234 to limit the connecting ring 3. One end of the limiting plate 234 is movably plugged into the inner side of the limiting groove 31. A top cover 5 is threadedly connected on the outer side of the threaded column 13 for further fixing the connecting ring 3. The top cover 5 is located above the connecting ring 3. A threaded groove 51 is provided in the middle part of the bottom surface of the top cover 5 for installing the top cover 5. The threaded column 13 is threadedly connected to the inner side of the threaded groove 51. The connecting ring 3 of this scheme can be quickly disassembled and assembled, which is convenient for carrying and using the drone, and also makes it more convenient to repair and replace the propeller.

[0028] Reference Figure 1 , Figure 2 and Figure 5 As shown, specifically, the outer wall of the connecting ring 3 is provided with a plug-in groove 32 for connecting the blade 4, the inner side of the plug-in groove 32 is movably plugged with a blade 4 for flying the UAV, one end of the blade 4 is fixedly provided with a connecting plate 41 for disassembling and assembling the blade 4, the connecting plate 41 is movably plugged into the inner side of the plug-in groove 32, the top surface of the connecting plate 41 is provided with a limiting hole 411 for limiting the blade 4, a movable hole 321 is provided on the inner wall of one side of the plug-in groove 32 to facilitate the movement of the pull rod 322, and a pull rod 322 is movably plugged into the inner side of the movable hole 321 to limit the displacement of the blade 4 A second spring 323 is movably sleeved on the outer side of the lower end of the pull rod 322 for providing elastic pulling force for the pull rod 322. The top end of the second spring 323 is fixedly connected to the bottom surface of the connecting ring 3. The lower end of the second spring 323 is fixedly connected to the pull rod 322. The upper end of the pull rod 322 is movably inserted into the inner side of the limiting hole 411. A notch 24 is provided on the edge of the top surface of the mounting plate 2 to prevent the pull rod 322 from colliding with the mounting plate 2. The lower end of the pull rod 322 is located on the inner side of the notch 24. Each blade 4 of the present invention can be disassembled, assembled and replaced individually, which is beneficial to saving the use cost of the drone.

[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, specifically, a mounting plate 2 is movably inserted on the outer side of the rectangular column 12 for supporting the connecting ring 3. A connecting tube 22 is fixedly provided in the middle of the top surface of the mounting plate 2 for fixing and supporting the fixing plate 23. The rectangular column 12 is movably inserted in the inner side of the connecting tube 22. A rectangular hole 21 is provided in the middle of the top surface of the mounting plate 2 for convenient installation and fixation of the mounting plate 2. The rectangular hole 21 is connected to the inner side of the connecting tube 22. The rectangular column 12 is movably inserted in the inner side of the rectangular hole 21. The mounting plate 2 of this scheme can be easily disassembled, which is convenient for maintenance and also convenient for cleaning the drone, thereby improving efficiency.

[0030] The working principle and use process of this utility model:

[0031] When the drone needs to be carried or the propeller needs to be replaced, the top cover 5 is unscrewed, and then one hand moves the two sliding plates 235 toward the direction of the connecting tube 22 to disengage the limiting plate 234 from the limiting groove 31, and the other hand holds the blade 4 to remove the connecting ring 3, and then pulls the pull rod 322 to separate one end of the pull rod 322 from the limiting hole 411, and the blade 4 can be quickly removed. When installing the blade 4, first pull the pull rod 322, and then insert the connecting plate 41 at one end of the blade 4 into the inner side of the plug-in groove 32, and then release the hand pulling the pull rod 322. Under the elastic force of the second spring 323, One end of the pull rod 322 is inserted into the inner side of the limiting hole 411 to complete the installation of the blade 4. When the connecting ring 3 needs to be installed, the limiting groove 31 on the inner wall of the connecting ring 3 is aligned with the limiting plate 234 in the vertical direction, and then the connecting ring 3 is pressed downward. The inner wall of the connecting ring 3 squeezes the inclined surface of the limiting plate 234 to contract the first spring 233 and drive the limiting plate 234 to move. When the connecting ring 3 contacts the mounting plate 2, one end of the inclined surface of the limiting plate 234 is just horizontally aligned with the limiting groove 31, and the first spring 233 stretches to push the limiting plate 234 into the inner side of the limiting groove 31, and then the top cover 5 is screwed on to complete the installation.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A UAV propeller quick-release structure, comprising a motor (1), characterized in that: A rotating column (11) is fixedly provided in the middle of the top surface of the motor (1), a rectangular column (12) is fixedly provided in the middle of the top surface of the rotating column (11), a threaded column (13) is fixedly provided in the middle of the top surface of the rectangular column (12), a mounting plate (2) is movably plugged in the outer side of the rectangular column (12), a connecting tube (22) is fixedly provided in the middle of the top surface of the mounting plate (2), the rectangular column (12) is movably plugged in the inner side of the connecting tube (22), a connecting ring (3) is movably connected in the top surface of the mounting plate (2), the connecting tube (22) is located in the inner side of the connecting ring (3), an inserting groove (32) is provided in the outer wall of the connecting ring (3), a blade (4) is movably plugged in the inner side of the inserting groove (32), a top cover (5) is threadedly connected in the outer side of the threaded column (13), and the top cover (5) is located above the connecting ring (3).

2. The UAV propeller quick-release structure according to claim 1, characterized in that: A fixing plate (23) is fixedly provided on the outer wall of the connecting tube (22); a spring groove (231) is provided in the middle of one side wall of the fixing plate (23); a sliding groove (232) is provided on the edge of the top surface of the fixing plate (23); the sliding groove (232) is connected to the inner side of the spring groove (231); a first spring (233) is fixedly provided on the inner wall of one side of the spring groove (231); a limiting plate (234) is fixedly provided at one end of the first spring (233); a sliding plate (235) is fixedly provided on the top surface of the limiting plate (234); the sliding plate (235) passes through the sliding groove (232).

3. The UAV propeller quick-release structure according to claim 2, characterized in that: The inner wall of the connecting ring (3) is provided with a limiting groove (31), and one end of the limiting plate (234) is movably plugged into the inner side of the limiting groove (31).

4. The UAV propeller quick-release structure according to claim 3, characterized in that: A connecting plate (41) is fixedly provided at one end of the paddle (4), the connecting plate (41) is movably plugged into the inner side of the plug-in slot (32), and a limiting hole (411) is provided on the top surface of the connecting plate (41).

5. The UAV propeller quick-release structure according to claim 4, characterized in that: A movable hole (321) is provided on the inner wall of one side of the insertion groove (32), a pull rod (322) is movably inserted inside the movable hole (321), a second spring (323) is movably sleeved on the outer side of the lower end of the pull rod (322), the top end of the second spring (323) is fixedly connected to the bottom surface of the connecting ring (3), the lower end of the second spring (323) is fixedly connected to the pull rod (322), and the upper end of the pull rod (322) is movably inserted into the inner side of the limiting hole (411).

6. The UAV propeller quick-release structure according to claim 5, characterized in that: A notch (24) is provided on the edge of the top surface of the mounting plate (2), and the lower end of the pull rod (322) is located inside the notch (24).

7. The UAV propeller quick-release structure according to claim 6, characterized in that: A rectangular hole (21) is provided in the middle of the top surface of the installation plate (2), the rectangular hole (21) is connected to the inner side of the connecting tube (22), and the rectangular column (12) is movably plugged into the inner side of the rectangular hole (21).

8. The UAV propeller quick-release structure according to claim 7, characterized in that: A thread groove (51) is provided in the middle of the bottom surface of the top cover (5), and the thread column (13) is threadedly connected to the inner side of the thread groove (51).

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