Folding paddle assembly and unmanned aerial vehicle

Abstract

The utility model discloses a folding paddle assembly and an unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles. The folding paddle assembly comprises a paddle blade, a paddle clamp, a wear-resistant part and an elastic part, the paddle blade comprises a mounting part and a main body part connected with the mounting part, the mounting part is rotationally connected to the paddle clamp, the wear-resistant part is clamped between the paddle clamp and the mounting part, and the elastic part is elastically supported between the wear-resistant part and the paddle clamp; a limiting structure is arranged at the position, close to the mounting part, of the main body part; when the paddle rotates relative to the paddle clamp, the limiting structure can abut against the paddle clamp so as to limit the rotation range of the paddle. According to the folding paddle assembly, the paddles are convenient to install, rotation of the paddles can be achieved without adjusting the locking force of the paddle clamps, the locking force is high and firm, and the problems that the paddles are prone to vibration and screws are loosened in the using process of the unmanned aerial vehicle are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicles, in particular to a folding propeller assembly and an unmanned aerial vehicle. BACKGROUND

[0002] The propeller of an unmanned aerial vehicle is a key component of the unmanned aerial vehicle. The propeller is fixed on the motor of the unmanned aerial vehicle through a propeller clamp and is used to convert the kinetic energy of the motor into a force for moving the unmanned aerial vehicle. However, the existing propeller needs to be manually adjusted in locking force of a fixing screw on the propeller clamp when being folded or unfolded. In the use process of the unmanned aerial vehicle, the propeller blades are prone to vibration and the fixing screw is prone to loosening. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems, the present application provides a folding propeller assembly and an unmanned aerial vehicle, which can realize rotation of the propeller blades without disassembly, thereby avoiding loosening of the propeller blades.

[0004] In a first aspect, the present application provides a folding propeller assembly, comprising a propeller blade, a propeller clamp, a wear-resistant piece and an elastic piece. The propeller blade comprises a mounting portion and a main body portion connected with the mounting portion. The mounting portion is rotationally connected to the propeller clamp. The wear-resistant piece is clamped between the propeller clamp and the mounting portion. The elastic piece is elastically supported between the wear-resistant piece and the propeller clamp.

[0005] The main body portion is provided with a limiting structure at a position close to the mounting portion.

[0006] When the propeller blade rotates relative to the propeller clamp, the limiting structure can abut against the propeller clamp to limit the rotation range of the propeller blade.

[0007] In the technical scheme of the present application, the wear-resistant piece can repeatedly rub against the propeller blade due to its wear-resistant property. Therefore, the propeller blade can rotate relative to the wear-resistant piece without disassembly. In the rotation process of the propeller blade, the elastic piece can reduce vibration of the propeller blade, and the limiting structure can limit the rotation range of the propeller blade. Thus, the propeller blade of the folding propeller assembly of the present application is convenient to install, can rotate without adjusting the locking force of the propeller clamp, and has strong and firm locking force, thereby reducing the problems of vibration of the propeller blade and loosening of the fixing screw in the use process of the unmanned aerial vehicle. In addition, the propeller blade can be manually folded and stored, thereby greatly reducing the space occupied by the unmanned aerial vehicle when it is not started. When the unmanned aerial vehicle is used, the propeller clamp can be driven by the motor to rotate and automatically open the propeller blade, thereby reducing the manufacturing cost.

[0008] In an optional embodiment, the propeller clamp comprises a first fixed block, a second fixed block and a connecting piece. The connecting piece is connected between the first fixed block and the second fixed block. The mounting portion is arranged between the first fixed block and the second fixed block and is rotationally connected to the connecting piece.

[0009] The wear-resistant part comprises a first wear-resistant sheet and a second wear-resistant sheet, the first wear-resistant sheet is clamped between the first fixing block and the mounting portion, and the second wear-resistant sheet is clamped between the second fixing block and the mounting portion.

[0010] The elastic piece is elastically supported between the second wear-resistant sheet and the second fixing block.

[0011] In the above scheme, the first wear-resistant sheet and the second wear-resistant sheet are respectively arranged on opposite sides of the mounting portion of the paddle, so as to ensure the rotation of the paddle. At the same time, the elastic piece is elastically supported between the second wear-resistant sheet and the second fixing block, so as to reduce the vibration of the paddle.

[0012] In an optional embodiment, the connecting piece comprises a fixing screw and a fixing stud, the fixing stud is mounted on the second fixing block and protrudes from one side of the second fixing block towards the first fixing block.

[0013] The elastic piece, the second wear-resistant sheet, the mounting portion and the first wear-resistant sheet are sequentially sleeved on the fixing stud.

[0014] The fixing screw is threadedly connected with the fixing stud through the first fixing block.

[0015] In the above scheme, the first fixing block and the second fixing block are fixed by the fixing screw and the fixing stud, so that the rotation of the paddle can be realized without adjusting the locking force of the fixing screw.

[0016] In an optional embodiment, one side of the first fixing block towards the second fixing block is provided with a first accommodating groove, and the first wear-resistant sheet is partially accommodated in the first accommodating groove.

[0017] In the above scheme, the first wear-resistant sheet is fixed in position by the first accommodating groove, so as to prevent the first wear-resistant sheet from deviating.

[0018] In an optional embodiment, one side of the second fixing block towards the first fixing block is provided with a second accommodating groove, and the elastic piece is partially accommodated in the second accommodating groove.

[0019] In the above scheme, the position of the elastic piece is fixed by the second accommodating groove, so as to prevent the elastic piece from deviating.

[0020] In an optional embodiment, one side of the second fixing block towards the first fixing block is provided with a positioning column, and one side of the first fixing block towards the second fixing block is provided with a positioning groove, and the positioning column is partially inserted into the positioning groove.

[0021] The positioning column and the positioning groove are arranged to limit the relative position of the first fixing block and the second fixing block.

[0022] In an optional embodiment, the paddle is provided with two, and the mounting portions of the two paddles are rotatably connected to the paddle holder at intervals;

[0023] The positioning column is located between the mounting portions of the two paddles;

[0024] The wear-resistant pieces are provided with two, and the two wear-resistant pieces are provided one-to-one corresponding to the two paddles;

[0025] The elastic pieces are provided with two, and the two elastic pieces are provided one-to-one corresponding to the two wear-resistant pieces.

[0026] In the above scheme, when the paddle is provided with two, the positioning column is located between the mounting portions of the two paddles to determine the relative position of the two paddles.

[0027] In an optional embodiment, the rotation axes of the mounting portions of the two paddles are symmetrically arranged about the central axis of the positioning column.

[0028] In the above scheme, the rotation axes of the mounting portions of the two paddles are symmetrically arranged about the central axis of the positioning column, thereby ensuring the relative position of the two paddles, so that the unmanned aerial vehicle can fly stably.

[0029] In an optional embodiment, the limiting structure includes a limiting block, and when the paddle rotates relative to the paddle holder, the limiting block can abut against the paddle holder to limit the rotation range of the paddle.

[0030] In the above scheme, the limiting block is arranged to limit the rotation range of the paddle to prevent the paddle from rotating too much.

[0031] In a second aspect, the application provides an unmanned aerial vehicle including the folding paddle assembly in one or more embodiments described above.

[0032] In the above scheme, since the folding paddle assembly in one or more embodiments described above can reduce the problem that the paddle is prone to vibration and screw loosening during use of the unmanned aerial vehicle, the unmanned aerial vehicle including the folding paddle assembly in one or more embodiments described above can also reduce the problem that the paddle is prone to vibration and screw loosening during use of the unmanned aerial vehicle.

[0033] The above description is only a summary of the technical scheme of the application. In order to more clearly understand the technical means of the application, the specific embodiments of the application can be implemented in accordance with the content of the description, and in order to make other purposes, features and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0034] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The detailed description is made with reference to the accompanying drawings.

[0035] Figure 1 Structure diagram of the folding oar assembly of some embodiments of the present application;

[0036] Figure 2 Explosive diagram of the folding oar assembly of some embodiments of the present application;

[0037] Figure 3 Structure diagram of the folding oar assembly of some embodiments of the present application; Figure 2 Enlarged diagram of the oar clamp;

[0038] Figure 4 Sectional diagram of the folding oar assembly of some embodiments of the present application at the oar clamp.

[0039] Reference signs in the detailed description of the embodiments are as follows:

[0040] 1 - oar blade; 11 - mounting portion; 12 - main body portion; 13 - limiting structure; 131 - limiting block;

[0041] 2 - oar clamp; 21 - first fixing block; 211 - first accommodating groove; 212 - positioning groove; 22 - second fixing block; 221 - second accommodating groove; 222 - positioning column; 23 - connecting piece; 231 - fixing screw; 232 - fixing stud;

[0042] 3 - wear-resistant piece; 31 - first wear-resistant sheet; 32 - second wear-resistant sheet;

[0043] 4 - elastic piece. DETAILED DESCRIPTION

[0044] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0046] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly and specifically limited.

[0047] Reference herein to "embodiments" means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the application. The occurrence of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0049] The propeller of the unmanned aerial vehicle is a key component of the unmanned aerial vehicle. The propeller is fixed on the motor of the unmanned aerial vehicle through a propeller clamp, and is used to convert the kinetic energy of the motor into a force to move the unmanned aerial vehicle. However, the existing propeller needs to manually adjust the locking force of the fixing screw on the propeller clamp when folding or unfolding. During use of the unmanned aerial vehicle, the propeller blades are prone to vibration and the screw is prone to loosening.

[0050] In view of this, the present application provides a folding propeller assembly, comprising a propeller blade, a propeller clamp, a wear-resistant piece and an elastic piece. The propeller blade comprises a mounting portion and a main body portion connected with the mounting portion. The mounting portion is rotationally connected to the propeller clamp. The wear-resistant piece is clamped between the propeller clamp and the mounting portion. The elastic piece is elastically supported between the wear-resistant piece and the propeller clamp. The main body portion is provided with a limiting structure at a position close to the mounting portion. When the propeller blade rotates relative to the propeller clamp, the limiting structure can abut against the propeller clamp to limit the rotation range of the propeller blade. The propeller blade of the folding propeller assembly is easy to install, and the rotation of the propeller blade can be realized without adjusting the locking force of the propeller clamp. The locking force is strong and firm, and the problem of vibration of the propeller blade and loosening of the screw during use of the unmanned aerial vehicle is reduced.

[0051] According to some embodiments of the present application, with reference to Figures 1-4 , the present application provides a folding propeller assembly, comprising a propeller blade 1, a propeller clamp 2, a wear-resistant piece 3 and an elastic piece 4. The propeller blade 1 comprises a mounting portion 11 and a main body portion 12 connected with the mounting portion 11. The mounting portion 11 is rotationally connected to the propeller clamp 2. The wear-resistant piece 3 is clamped between the propeller clamp 2 and the mounting portion 11. The elastic piece 4 is elastically supported between the wear-resistant piece 3 and the propeller clamp 2.

[0052] The main body portion 12 is provided with a limiting structure 13 at a position close to the mounting portion 11.

[0053] When the paddle 1 rotates relative to the paddle holder 2, the limiting structure 13 can abut against the paddle holder 2 to limit the rotation range of the paddle 1.

[0054] In the technical scheme of the embodiment, the wear-resistant piece 3 is arranged between the paddle holder 2 and the paddle 1, and the elastic piece 4 is arranged between the wear-resistant piece 3 and the paddle holder 2. The wear-resistant piece 3 can repeatedly rub against the paddle 1 due to its wear-resistant performance, so that the paddle 1 can rotate relative to the wear-resistant piece 3 without being disassembled. During the rotation of the paddle 1, the elastic piece 4 can reduce the vibration of the paddle 1, and the limiting structure 13 can limit the rotation range of the paddle 1. Thus, the paddle 1 of the folding paddle assembly is convenient to install, the rotation of the paddle 1 can be realized without adjusting the locking force of the paddle holder 2, the locking force is strong and firm, and the problem that the paddle 1 is prone to vibration and screw loosening during use of the unmanned aerial vehicle is reduced. In addition, the paddle 1 can be manually folded and stored, which greatly reduces the space occupied by the unmanned aerial vehicle when it is not started. When the unmanned aerial vehicle is used, the paddle holder 2 can be driven to rotate by the motor, and the paddle 1 can be automatically opened, thereby reducing the manufacturing cost.

[0055] In addition, since the elastic piece 4 is arranged, even if there is a tolerance in the height direction between the paddle 1 and the paddle holder 2 during manufacturing, the normal use of the paddle 1 is not affected.

[0056] In some embodiments, the elastic piece 4 can be a silica gel pad.

[0057] In other embodiments, the elastic piece can also be made of other materials with elasticity.

[0058] According to some embodiments of the present application, referring to Figures 2-4 The paddle holder 2 includes a first fixed block 21, a second fixed block 22, and a connecting piece 23 connected between the first fixed block 21 and the second fixed block 22. The mounting portion 11 is arranged between the first fixed block 21 and the second fixed block 22 and is rotationally connected to the connecting piece 23.

[0059] The wear-resistant piece 3 includes a first wear-resistant sheet 31 and a second wear-resistant sheet 32. The first wear-resistant sheet 31 is clamped between the first fixed block 21 and the mounting portion 11, and the second wear-resistant sheet 32 is clamped between the second fixed block 22 and the mounting portion 11.

[0060] The elastic piece 4 is elastically supported between the second wear-resistant sheet 32 and the second fixed block 22.

[0061] The first wear-resistant sheet 31 and the second wear-resistant sheet 32 are respectively arranged on opposite sides of the mounting portion 11 of the paddle 1, so that rotation of the paddle 1 is ensured and friction between the paddle 1 and the paddle clamp 2 is avoided. Meanwhile, the elastic member 4 is elastically supported between the second wear-resistant sheet 32 and the second fixed block 22, so as to reduce vibration of the paddle 1.

[0062] According to some embodiments of the present application, referring to Figures 2-4 The connecting member 23 comprises a fixing screw 231 and a fixing stud 232, and the fixing stud 232 is arranged on the second fixed block 22 and extends from one side of the second fixed block 22 towards the first fixed block 21.

[0063] The elastic member 4, the second wear-resistant sheet 32, the mounting portion 11 and the first wear-resistant sheet 31 are sequentially sleeved on the fixing stud 232.

[0064] The fixing screw 231 is threadedly connected with the fixing stud 232 through the first fixed block 21.

[0065] In the above scheme, since the fixing stud 232 is arranged on the second fixed block 22, the elastic member 4, the second wear-resistant sheet 32, the mounting portion 11 and the first wear-resistant sheet 31 are sequentially sleeved on the fixing stud 232, and the fixing screw 231 is arranged through the first fixed block 21, so that the positions of the elastic member 4, the second wear-resistant sheet 32, the mounting portion 11 and the first wear-resistant sheet 31 can be fixed while the first fixed block 21 and the second fixed block 22 are fixed by connecting the fixing screw 231 with the fixing stud 232. In this way, the rotation of the paddle 1 can be realized without adjusting the locking force of the fixing screw 231.

[0066] According to some embodiments of the present application, referring to Figures 2-4 One side of the first fixed block 21 towards the second fixed block 22 is provided with a first accommodating groove 211, and the first wear-resistant sheet 31 is partially accommodated in the first accommodating groove 211.

[0067] In the above scheme, the first accommodating groove 211 is arranged to fix the position of the first wear-resistant sheet 31 and prevent the first wear-resistant sheet 31 from deviating.

[0068] According to some embodiments of the present application, referring to Figures 2-4 One side of the second fixed block 22 towards the first fixed block 21 is provided with a second accommodating groove 221, and the elastic member 4 is partially accommodated in the second accommodating groove 221.

[0069] In the above scheme, the second accommodating groove 221 is arranged to fix the position of the elastic member 4 and prevent the elastic member 4 from deviating.

[0070] According to some embodiments of the present application, referring to Figures 2-4The side of the second fixing block 22 facing the first fixing block 21 is provided with a positioning column 222, and the side of the first fixing block 21 facing the second fixing block 22 is provided with a positioning groove 212, and the positioning column 222 is partially inserted into the positioning groove 212.

[0071] In the above scheme, the positioning column 222 and the positioning groove 212 are arranged to limit the relative position of the first fixing block 21 and the second fixing block 22.

[0072] According to some embodiments of the present application, referring to Figures 2-4 The paddle 1 is provided with two, and the mounting portions 11 of the two paddles 1 are rotatably connected to the paddle clamp 2 at intervals.

[0073] The positioning column 222 is located between the mounting portions 11 of the two paddles 1.

[0074] The wear-resistant piece 3 is provided with two, and the two wear-resistant pieces 3 are arranged one-to-one corresponding to the two paddles 1.

[0075] The elastic piece 4 is provided with two, and the two elastic pieces 4 are arranged one-to-one corresponding to the two wear-resistant pieces 3.

[0076] In the above scheme, when the paddle 1 is provided with two, the positioning column 222 is located between the mounting portions 11 of the two paddles 1 to determine the relative position of the two paddles 1.

[0077] According to some embodiments of the present application, referring to Figures 2-4 The rotation axes of the mounting portions 11 of the two paddles 1 are symmetrically arranged about the central axis of the positioning column 222.

[0078] In the above scheme, the position accuracy of the paddle 1 will affect the balance and control ability of the guideless drone, and by arranging the rotation axes of the mounting portions 11 of the two paddles 1 symmetrically about the central axis of the positioning column 222, the relative position of the two paddles 1 is ensured, so that the drone can fly stably.

[0079] According to some embodiments of the present application, referring to Figures 2-4 The limiting structure 13 includes a limiting block 131, and when the paddle 1 rotates relative to the paddle clamp 2, the limiting block 131 can abut against the paddle clamp 2 to limit the rotation range of the paddle 1.

[0080] In the above scheme, the limiting block 131 is arranged to limit the rotation range of the paddle 1 to prevent the paddle 1 from rotating too much.

[0081] According to some embodiments of the present application, the present application provides a drone, which includes the folding paddle assembly in one or more embodiments described above.

[0082] In the above scheme, since the folding propeller assembly in one or more of the above embodiments can reduce the problem of easy vibration and screw loosening of the propeller 1 during use of the unmanned aerial vehicle, the unmanned aerial vehicle including the folding propeller assembly in one or more of the above embodiments can also reduce the problem of easy vibration and screw loosening of the propeller 1 during use of the unmanned aerial vehicle.

[0083] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A folding propeller assembly, characterized in that, The device includes a blade, a blade clamp, a wear-resistant component, and an elastic component. The blade includes a mounting portion and a main body portion connected to the mounting portion. The mounting portion is rotatably connected to the blade clamp. The wear-resistant component is clamped between the blade clamp and the mounting portion. The elastic component is elastically supported between the wear-resistant component and the blade clamp. A limiting structure is provided on the main body near the mounting part; When the blade rotates relative to the blade clamp, the limiting structure can abut against the blade clamp to limit the rotation range of the blade. The propeller clamp includes a first fixing block, a second fixing block, and a connecting member. The connecting member is connected between the first fixing block and the second fixing block, and the mounting part is disposed between the first fixing block and the second fixing block and rotatably connected to the connecting member. The connector includes a fixing screw and a fixing stud. The fixing stud is mounted on the second fixing block and extends out of the second fixing block on the side facing the first fixing block. The fixing screw passes through the first fixing block and is threadedly connected to the fixing stud. The mounting part is sleeved on the fixing stud.

2. The folding propeller assembly according to claim 1, characterized in that, The wear-resistant component includes a first wear-resistant plate and a second wear-resistant plate. The first wear-resistant plate is sandwiched between the first fixing block and the mounting part, and the second wear-resistant plate is sandwiched between the second fixing block and the mounting part. The elastic element provides elastic support between the second wear-resistant sheet and the second fixing block.

3. The folding propeller assembly according to claim 2, characterized in that, The elastic element, the second wear-resistant plate, the mounting part, and the first wear-resistant plate are sequentially sleeved on the fixing stud.

4. The folding propeller assembly according to claim 2, characterized in that, The first fixing block has a first receiving groove on the side facing the second fixing block, and the first wear-resistant sheet is partially received in the first receiving groove.

5. The folding propeller assembly according to claim 2, characterized in that, The second fixing block has a second receiving groove on the side facing the first fixing block, and the elastic element is partially received in the second receiving groove.

6. The folding propeller assembly according to claim 2, characterized in that, The second fixing block has a positioning post on the side facing the first fixing block, and the first fixing block has a positioning groove on the side facing the second fixing block, with the positioning post partially inserted into the positioning groove.

7. The folding propeller assembly according to claim 6, characterized in that, The blades are provided in two parts, and the mounting parts of the two blades are rotatably connected to the blade clamp at intervals. The positioning post is located between the mounting portions of the two blades; Two wear-resistant parts are provided, and the two wear-resistant parts are provided one-to-one with the two blades; There are two elastic elements, and each elastic element corresponds to one of the two wear-resistant elements.

8. The folding propeller assembly according to claim 7, characterized in that, The rotation axes of the mounting portions of the two blades are symmetrically arranged about the central axis of the positioning column.

9. The folding propeller assembly according to any one of claims 1-8, characterized in that, The limiting structure includes a limiting block. When the blade rotates relative to the blade clamp, the limiting block can abut against the blade clamp to limit the rotation range of the blade.

10. A drone, characterized in that, include: The folding propeller assembly as described in any one of claims 1-9.

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