Propeller and unmanned aerial vehicle

Abstract

The embodiment of the invention relates to the technical field of unmanned aerial vehicles, and particularly discloses a propeller and an unmanned aerial vehicle, the propeller comprises a blade, a propeller clamp assembly and a gasket assembly, the propeller clamp assembly comprises a propeller seat and a propeller clamp, the propeller seat and the propeller clamp clamp the blade, a connecting piece penetrates through the propeller clamp and the blade and then is fixed on the propeller seat, and the gasket assembly is fixed on the connecting piece. The gasket assembly is arranged between the paddle clamp assembly and the paddle in a cushioned mode and comprises a first gasket, a second gasket and a retainer, the first gasket and the second gasket are rotationally arranged on the two sides of the retainer respectively, the first gasket, the second gasket and the retainer are all arranged on the connecting piece in a sleeving mode, and the first gasket and the second gasket are arranged on the connecting piece in a sleeving mode. The first gasket abuts against the paddle clamp assembly, and the second gasket abuts against the paddle. In this way, the rotating friction resistance of the blades can be reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of unmanned aerial vehicles, and in particular to a propeller and an unmanned aerial vehicle. Background Art

[0002] Unmanned aerial vehicles are widely used in fields such as aerial photography, topographic mapping, agricultural plant protection, logistics and transportation. Unmanned aerial vehicles fly by driving propellers through power parts. In order to facilitate the storage of unmanned aerial vehicles, the propeller blades are foldable. When not flying, the blades are folded.

[0003] However, in the process of implementing the embodiments of the present invention, the inventors found that: currently, the blade is sleeved on the connecting piece, the blade is clamped by the blade clamp assembly, and a gasket is arranged between the blade clamp assembly and the blade, and the two sides of the gasket are respectively against the blade clamp assembly and the blade, resulting in a large frictional resistance to the rotation of the blade. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a propeller which can solve the problem of large friction resistance of blade rotation.

[0005] To solve the above technical problems, a technical solution adopted by the present invention is: to provide a propeller, including a blade, a propeller clamp assembly and a gasket assembly, the propeller clamp assembly includes a propeller seat and a propeller clamp, the propeller seat and the propeller clamp clamp the blade, the connecting piece passes through the propeller clamp and the blade and is fixed to the propeller seat, the gasket assembly is padded between the propeller clamp assembly and the blade, the gasket assembly includes a first gasket, a second gasket and a retaining frame, the first gasket and the second gasket are respectively rotatably arranged on both sides of the retaining frame, the first gasket, the second gasket and the retaining frame are all sleeved on the connecting piece, the first gasket is abutted against the propeller clamp assembly, and the second gasket is abutted against the blade.

[0006] Optionally, the gasket assembly is arranged between the propeller blade and the propeller seat, the first gasket abuts against the propeller seat, and the second gasket abuts against the propeller blade;

[0007] or,

[0008] The gasket assembly is arranged between the propeller blade and the propeller clamp, the first gasket is supported by the propeller clamp, and the second gasket is supported by the propeller blade;

[0009] or,

[0010] There are two gasket assemblies, one of which is arranged between the propeller blade and the propeller clamp, the first gasket of the one gasket assembly is abutted against the propeller clamp, the second gasket of the one gasket assembly is abutted against the propeller blade, and the other gasket assembly is arranged between the propeller blade and the propeller seat, the first gasket of the other gasket assembly is abutted against the propeller seat, and the second gasket of the other gasket assembly is abutted against the propeller blade.

[0011] Optionally, a first rotation groove and a second rotation groove are respectively provided on both sides of the retaining frame;

[0012] The first gasket is received in the first rotation groove, and a portion of the first gasket protrudes from the first rotation groove, and a portion of the first gasket protruding from the first rotation groove abuts against the oar clamp assembly;

[0013] The second gasket is received in the second rotation groove, and a portion of the second gasket protrudes from the second rotation groove, and a portion of the second gasket protruding from the second rotation groove abuts against the blade.

[0014] Optionally, the gasket assembly includes a plurality of first rolling members, the retaining frame is provided with a plurality of rolling grooves, the rolling grooves are connected to the first rotating groove and the second rotating groove, one rolling member is rotatably accommodated in one rolling groove, two sides of the rolling member extend into the first rotating groove and the second rotating groove respectively, and two sides of the first rolling member are respectively abutted against the first gasket and the second gasket.

[0015] Optionally, the gasket assembly includes a plurality of second rolling members, the plurality of second rolling members are rotatably disposed in the first rotating groove, and the plurality of second rolling members abut against the first gasket;

[0016] and / or;

[0017] The gasket assembly includes a plurality of third rolling members, which are rotatably disposed in the second rotating groove and abut against the second gasket.

[0018] Optionally, the paddle clamp or the paddle seat is provided with a receiving groove, the gasket assembly is partially received in the receiving groove, and the first gasket of the gasket assembly is supported against the bottom surface of the receiving groove.

[0019] Optionally, the connecting member includes a cap portion, a shaft portion and a fixing portion, the cap portion is fixed to one end of the shaft portion, the cap portion is abutted against the paddle clamp, the shaft portion is passed through the paddle clamp, the gasket assembly and the paddle seat, the fixing portion is fixed to the other end of the shaft portion, and the fixing portion is abutted against the paddle seat.

[0020] Optionally, a first receiving groove is provided on a surface of the paddle clamp facing away from the paddle seat, and the cap portion is received in the first receiving groove.

[0021] Optionally, a second receiving groove is provided on a surface of the paddle seat facing away from the paddle blade, and the fixing portion is received in the second receiving groove.

[0022] In order to solve the above technical problem, another technical solution adopted by the present invention is: to provide an unmanned aerial vehicle, including the above propeller.

[0023] In an embodiment of the present invention, a propeller includes a blade, a blade clamp assembly and a spacer assembly, wherein the blade clamp assembly includes a blade seat and a blade clamp, wherein the blade seat and the blade clamp the blade, wherein the connecting member passes through the blade clamp and the blade and is fixed to the blade seat, wherein the spacer assembly is padded between the blade clamp assembly and the blade, wherein the spacer assembly includes a first spacer, a second spacer and a retaining frame, wherein the first spacer and the second spacer are respectively rotatably disposed on both sides of the retaining frame, wherein the first spacer, the second spacer and the retaining frame are all sleeved on the connecting member, wherein the first spacer abuts against the blade clamp assembly, and the second spacer abuts against the blade. The first spacer and the second spacer are respectively rotatably disposed on both sides of the retaining frame, thereby reducing the rotational friction resistance of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0025] Figure 1 is a schematic diagram of an exploded structure of a propeller provided by an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of a structural cross-section of a propeller provided by an embodiment of the present invention;

[0027] Figure 3 is a schematic structural diagram of a propeller blade provided by an embodiment of the present invention;

[0028] Figure 4 It is an exploded schematic diagram of the structure of a propeller clamp assembly of a propeller provided in an embodiment of the present invention;

[0029] Figure 5 is another exploded schematic diagram of the structure of the propeller clamp assembly of the propeller provided by an embodiment of the present invention;

[0030] Figure 6 is a schematic diagram of an exploded structure of a gasket assembly of a propeller provided by an embodiment of the present invention;

[0031] Figure 7 is a schematic cross-sectional view of a gasket assembly of a propeller provided in an embodiment of the present invention;

[0032] Figure 8 It is a schematic diagram of the structural explosion of the connecting part of the propeller provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 100. Propeller;

[0035] 1. blade; 11. root; 111. first through hole; 112. first friction surface; 113. second friction surface; 12. blade portion;

[0036] 2. paddle clamp assembly; 21. paddle seat; 211. second receiving groove; 212. second through hole; 213. third through hole; 214. plug hole; 215. weight reduction groove; 22. paddle clamp; 221. first receiving groove; 222. fourth through hole; 23. receiving groove;

[0037] 3. Gasket assembly; 31. Cage; 311. First rotating groove; 312. Second rotating groove; 313. Fifth through hole; 314. Rolling groove; 32. First gasket; 321. Sixth through hole; 33. Second gasket; 331. Seventh through hole; 34. First rolling element;

[0038] 4. Connecting piece; 41. Cap portion; 42. Shaft portion; 421. External thread; 43. Fixing portion; 431. Screw hole. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0041] See also Figure 1 and Figure 2 The propeller 100 includes a blade 1, a blade clamp assembly 2, a spacer assembly 3 and a connector 4. The blade clamp assembly 2 clamps the blade 1, and the blade clamp assembly 2 is used to connect and fix with the power member, so that the power member drives the propeller 100 to rotate. The spacer assembly 3 is arranged between the blade clamp assembly 2 and the blade 1, and the spacer assembly 3 is used to reduce the wear of the friction surface of the blade 1. The connector 4 passes through the blade 1, the spacer assembly 3 and the blade clamp assembly 2 and is fixed to the blade clamp assembly 2. The blade 1 can rotate around the connector 4 relative to the blade clamp assembly 2, so that the blade 1 can be folded or unfolded.

[0042] For blade 1 above, see Figure 3 The blade 1 is provided with a root portion 11 and a blade portion 12. The root portion 11 is fixed to the blade portion 12, and the root portion 11 is provided with a first through hole 111, and the first through hole 111 is for the connecting member 4 to pass through. The root portion 11 has a first friction surface 112 and a second friction surface 113 opposite to each other.

[0043] For the above paddle clamp assembly 2, see Figure 4 and Figure 5 The oar clamp assembly 2 includes an oar seat 21 and an oar clamp 22. The oar seat 21 or the oar clamp 22 is provided with a receiving groove 23. The receiving groove 23 is provided on the surface of the oar seat 21 facing the oar clamp 22 or the surface of the oar clamp 22 facing the oar seat 21. The receiving groove 23 is used to accommodate part of the gasket assembly 3. The oar seat 21 and the oar clamp 22 clamp the root 11 and the gasket assembly 3.

[0044] The paddle seat 21 is provided with a second receiving groove 211, a second through hole 212, a third through hole 213 and a plug hole 214. The second receiving groove 211 is provided on the surface of the paddle seat 21 facing away from the paddle clip 22, and the second receiving groove 211 receives part of the connecting member 4. The second through hole 212 is connected to the second receiving groove 211. When the paddle seat 21 is provided with a receiving groove 23, the second through hole 212 is connected to the receiving groove 23, and the second through hole 212 is provided for the connecting member 4 to pass through. The third through hole 213 is used for connecting the power member after the locking member passes through, so that the paddle seat 21 is connected and fixed to the power member. The plug hole 214 runs through the paddle seat 21, and the plug hole 214 is used for partially plugging in the power member.

[0045] In some embodiments, the paddle seat 21 is further provided with a weight-reducing groove 215 . The weight-reducing groove 215 is provided on a surface of the paddle seat 21 facing away from the paddle clamp 22 . The weight-reducing groove 215 is used to reduce the weight of the paddle seat 21 .

[0046] The paddle clip 22 is provided with a first receiving groove 221 and a fourth through hole 222. The first receiving groove 221 is provided on the surface of the paddle clip 22 facing away from the paddle seat 21, and the first receiving groove 221 receives a portion of the connector 4. The fourth through hole 222 communicates with the first receiving groove 221. When the paddle clip 22 is provided with a receiving groove 23, the fourth through hole 222 communicates with the receiving groove 23, and the connector 4 passes through the fourth through hole 222.

[0047] For the above gasket assembly 3, see Figure 6 and Figure 7 , the gasket assembly 3 is padded between the root 11 and the paddle seat 21, or the gasket assembly 3 is padded between the root 11 and the paddle clamp 22. The gasket assembly 3 includes a retainer 31, a first gasket 32, and a second gasket 33. The retainer 31 is received in the receiving groove 23, and a portion of the retainer 31 protrudes from the receiving groove 23. The first gasket 32 ​​is rotatably disposed on one side of the retainer 31, and the first gasket 32 ​​is received in the receiving groove 23, and the first gasket 32 ​​abuts against the bottom surface of the receiving groove 23, so that the first gasket 32 ​​abuts against the paddle seat 21 or the paddle clamp 22. The second gasket 33 is rotatably disposed on the other side of the retainer 31, and the second gasket 33 abuts against the first friction surface 112 or the second friction surface 113, so that the second gasket 33 abuts against the blade 1. The first gasket 32 ​​and the second gasket 33 are rotatably disposed on both sides of the retaining frame 31 respectively, so as to reduce the friction resistance of the blade 1 when rotating relative to the blade clamp assembly 2, thereby reducing the wear of the first friction surface 112 or the second friction surface 113 and improving the wear resistance.

[0048] The holder 31 is provided with a first rotation groove 311, a second rotation groove 312 and a fifth through hole 313. The first transmission groove 311 is provided on one side of the holder 31. The second transmission groove 312 is provided on the other side of the holder 31. The fifth through hole 313 communicates the first rotation groove 311 and the second rotation groove 312, and the fifth through hole 313 is for the connecting member 4 to pass through, so that the holder 31 is sleeved on the connecting member 4.

[0049] The first gasket 32 ​​is accommodated in the first rotating groove 311, and a portion of the first gasket 32 ​​protrudes from the first rotating groove 311. The portion of the first gasket 32 ​​protruding from the first rotating groove 311 is abutted against the bottom surface of the accommodating groove 23. The first gasket 32 ​​is provided with a sixth through hole 321, and the sixth through hole 321 is for the connecting member 4 to pass through, so that the first gasket 32 ​​is sleeved on the connecting member 4.

[0050] The second gasket 33 is received in the second rotation groove 312, and part of the second gasket 33 protrudes from the second rotation groove 312. The part of the second gasket 33 protruding from the second rotation groove 312 abuts against the first friction surface 112 or the second friction surface 113. The part of the second gasket 33 abutting against the first friction surface 112 or the second friction surface 113 of the root 11 is a plane, so that the second gasket 33 is closely fitted with the first friction surface 112 or the second friction surface 113, thereby limiting the space for the blade 1 to wobble during operation, so that the helix angle of the blade 1 is stable, that is, the lift is stable. The second gasket 33 is provided with a seventh through hole 331, and the seventh through hole 331 is for the connector 4 to pass through, so that the second gasket 33 is sleeved on the connector 4.

[0051] In some embodiments, the retainer 31, the first gasket 32 ​​and the second gasket 33 are all made of a material with high hardness, such as bearing steel, so that the gasket assembly 3 is not very temperature sensitive and can be used at a temperature of 150°C, thereby allowing the gasket assembly 3 to be stably used in an environment with large temperature changes. Furthermore, in some embodiments, the minimum thickness of the first gasket 32 ​​and the second gasket 33 is 0.2 mm.

[0052] In some embodiments, the gasket assembly 3 includes a plurality of first rolling members 34, the retaining frame 31 is provided with a plurality of rolling grooves 314, the plurality of rolling grooves 314 are arranged around the fifth through hole 313, the rolling grooves 314 are connected to the first rotation groove 311 and the second rotation groove 312, a first rolling member 34 is rotatably accommodated in a rolling groove 314, one side of the first rolling member 34 extends into the first rotation groove 311, one side of the first rolling member 34 abuts against the first gasket 32, the other side of the first rolling member 34 extends into the second rotation groove 312, and the other side of the first rolling member 34 abuts against the second gasket 33. The friction force of the rotation of the first gasket 32 ​​and the second gasket 33 is reduced by the first rolling member 34, thereby reducing the friction resistance of the rotation of the blade 1.

[0053] In some embodiments, the first rolling element 34 is made of a material with high hardness, such as bearing steel.

[0054] In some embodiments, the distance from one side portion to the other side portion of the first rolling element 34 is small, for example, the distance is 1.5 mm, so as to reduce the weight of the propeller 100, so that the gasket assembly 3 has the characteristics of being thin and light, thereby matching the first gasket 32 ​​and the second gasket 33 of different thicknesses according to different loads, for example, matching the first gasket 32 ​​and the second gasket 33 with a thickness of 0.2 mm, thereby further reducing the weight of the propeller 100.

[0055] In some embodiments, the first rolling element 34 is a needle roller, a ball roller, or a roller.

[0056] It is understood that, in some embodiments, the gasket assembly 3 is not limited to the above structure, and the gasket assembly 3 can be other structures, for example, the gasket assembly 3 includes a plurality of second rolling members (not shown) and / or a plurality of third rolling members (not shown). The plurality of second rolling members are rotatably disposed in the first rotating groove 311, and the plurality of second rolling members are abutted against the first gasket 32, and / or the plurality of third rolling members are rotatably disposed in the second rotating groove 312, and the plurality of third rolling members are abutted against the second gasket 33.

[0057] In some embodiments, the second rolling element and the third rolling element are respectively any one of a needle roller, a needle roller or a roller wheel.

[0058] In some embodiments, there are two gasket assemblies 3, one gasket assembly 3 is padded between the blade 1 and the paddle clamp 22, the first gasket 32 ​​of the gasket assembly 3 is held against the paddle clamp 22, the second gasket 33 of the gasket assembly 3 is held against the blade 1, and another gasket assembly 3 is padded between the blade 1 and the paddle seat 21, the first gasket 32 ​​of the other gasket assembly 3 is held against the paddle seat 21, and the second gasket 33 of the other gasket assembly 3 is held against the blade 1. By padded with gasket assemblies 3 on both sides of the blade 1, the rotational friction resistance of the blade 1 is lowered, and the wear resistance is further improved.

[0059] In some embodiments, the number of blades 1, connectors 4 and spacer assemblies 3 are all two. A connector 4 passes through the paddle clamp 22, the spacer assembly 3 and a blade 1 and is fixed to the paddle seat 21. A spacer assembly 3 is padded between a blade 1 and a paddle clamp assembly 2. Furthermore, in some embodiments, the number of spacer assemblies 3 is four, and a spacer assembly 3 is padded between a blade 1 and the paddle clamp 22 and the paddle seat 21, respectively. However, the number of blades 1, connectors 4 and spacer assemblies 3 is not limited thereto, and the number of blades 1 and connectors 4 can be three, four, five, etc., and correspondingly, the number of spacer assemblies 3 can be three, four, five, etc., or the number of spacer assemblies 3 can be six, eight, ten, etc.

[0060] It should be noted that when the number of blades 1 is two or more, since the first gasket 32 ​​and the second gasket 33 are both rotatably arranged on the retaining frame 31, the friction resistance of the blade 1 is reduced, the consistency of the deployment of two or more blades 1 is improved, and the dynamic imbalance of the propeller 100 is reduced, thereby reducing the vibration of the propeller 100. Furthermore, the second gasket 33 is closely fitted with the first friction surface 112 and / or the second friction surface 113 of the root 11, and the vibration of the propeller 100 is further reduced. Furthermore, since the first gasket 32 ​​and the second gasket 33 are both rotatably arranged on the retaining frame 31, the friction resistance of the blade 1 is reduced. When installing the propeller 100, the pressure range between the second gasket 33 and the root 11 can be adjusted, and the rotation resistance of two or more blades 1 can be maintained, thereby maintaining the consistency of the deployment of two or more blades 1, reducing the installation requirements, and making the installation consistency high.

[0061] For connector 4 above, see Figure 8The connecting member 4 includes a cap portion 41, a shaft portion 42 and a fixing portion 43. The cap portion 41 is received in the first receiving groove 221, the cap portion 41 is fixed to one end of the shaft portion 42, and the cap portion 41 abuts against the bottom surface of the first receiving groove 221, so that the cap portion 41 abuts against the paddle clamp 22. The shaft portion 42 passes through the fourth through hole 222, the first through hole 111, the sixth through hole 321, the fifth through hole 313, the seventh through hole 331 and the second through hole 212. The fixing portion 43 is fixed to the other end of the shaft portion 42, the fixing portion 43 is received in the second receiving groove 211, and the fixing portion 43 abuts against the bottom surface of the second receiving groove 211, so that the fixing portion 43 abuts against the paddle seat 21.

[0062] In some embodiments, the other end of the shaft portion 42 is provided with an external thread 421 , and the fixing portion 43 is provided with a screw hole 431 . The shaft portion 42 and the fixing portion 43 are screwed and fixed by screwing the external thread 421 and the screw hole 431 .

[0063] It can be understood that in some embodiments, the connecting member 4 is not limited to the above structure, and the connecting member 4 can be other structures. For example, the connecting member 4 does not include the fixing portion 43, and the other end of the shaft portion 42 is interference fit with the second through hole 212, so that the shaft portion 42 is fixed to the paddle seat 21.

[0064] In the embodiment of the present invention, the propeller 100 includes a blade 1, a blade clamp assembly 2 and a gasket assembly 3. The blade clamp assembly 2 includes a blade seat 21 and a blade clamp 22. The blade seat 21 and the blade clamp 22 clamp the blade 1. The connecting member 4 passes through the blade clamp 22 and the blade 1 and is fixed to the blade seat 21. The gasket assembly 3 is padded between the blade clamp assembly 2 and the blade 1. The gasket assembly 3 includes a first gasket 32, a second gasket 33 and a retaining frame 31. The first gasket 32 ​​and the second gasket 33 are respectively rotatably arranged on both sides of the retaining frame 31. The first gasket 32, the second gasket 33 and the retaining frame 31 are all sleeved on the connecting member 4. The first gasket 32 ​​abuts against the blade clamp assembly 2, and the second gasket 33 abuts against the blade 1. The first gasket 32 ​​and the second gasket 33 are respectively rotatably arranged on both sides of the retaining frame 31, so as to reduce the rotational friction resistance of the blade 1.

[0065] The present invention further provides an unmanned aerial vehicle embodiment, including the propeller 100 described above. The structure and function of the propeller 100 may refer to the above embodiment, which will not be described in detail here.

[0066] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not used as additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the present invention; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the protection scope of the claims attached to the present invention.

Claims

1. A propeller, characterized in that: include: Paddles; A propeller clamp assembly, comprising a propeller seat and a propeller clamp, wherein the propeller seat and the propeller clamp clamp the propeller blade; A connecting piece, the connecting piece passes through the propeller clamp and the propeller blade and is fixed to the propeller seat; A gasket assembly, wherein the gasket assembly is arranged between the oar clamp assembly and the blade, the gasket assembly comprises a first gasket, a second gasket and a retaining frame, the first gasket and the second gasket are respectively rotatably arranged on both sides of the retaining frame, the first gasket, the second gasket and the retaining frame are all sleeved on the connecting member, the first gasket is abutted against the oar clamp assembly, and the second gasket is abutted against the blade.

2. The propeller according to claim 1, characterized in that: The gasket assembly is arranged between the propeller blade and the propeller seat, the first gasket is supported against the propeller seat, and the second gasket is supported against the propeller blade; or, The gasket assembly is arranged between the propeller blade and the propeller clamp, the first gasket is supported by the propeller clamp, and the second gasket is supported by the propeller blade; or, There are two gasket assemblies, one of which is arranged between the propeller blade and the propeller clamp, the first gasket of the one gasket assembly is abutted against the propeller clamp, the second gasket of the one gasket assembly is abutted against the propeller blade, and the other gasket assembly is arranged between the propeller blade and the propeller seat, the first gasket of the other gasket assembly is abutted against the propeller seat, and the second gasket of the other gasket assembly is abutted against the propeller blade.

3. The propeller according to claim 1, characterized in that: The two sides of the retaining frame are respectively provided with a first rotation groove and a second rotation groove; The first gasket is received in the first rotation groove, and a portion of the first gasket protrudes from the first rotation groove, and a portion of the first gasket protruding from the first rotation groove abuts against the oar clamp assembly; The second gasket is received in the second rotation groove, and a portion of the second gasket protrudes from the second rotation groove, and a portion of the second gasket protruding from the second rotation groove abuts against the blade.

4. The propeller according to claim 3, characterized in that: The gasket assembly includes a plurality of first rolling members, the retaining frame is provided with a plurality of rolling grooves, the rolling grooves are connected to the first rotating groove and the second rotating groove, one rolling member is rotatably accommodated in one rolling groove, the two sides of the rolling member extend into the first rotating groove and the second rotating groove respectively, and the two sides of the first rolling member are respectively abutted against the first gasket and the second gasket.

5. The propeller according to claim 3, characterized in that: The gasket assembly includes a plurality of second rolling members, the plurality of second rolling members are rotatably disposed in the first rotating groove, and the plurality of second rolling members abut against the first gasket; and / or; The gasket assembly includes a plurality of third rolling members, which are rotatably disposed in the second rotating groove and abut against the second gasket.

6. The propeller according to claim 1, characterized in that: The oar clamp or the oar seat is provided with a receiving groove, the gasket assembly is partially received in the receiving groove, and the first gasket of the gasket assembly is supported against the bottom surface of the receiving groove.

7. The propeller according to claim 1, characterized in that The connecting member includes a cap portion, a shaft portion and a fixing portion, wherein the cap portion is fixed to one end of the shaft portion and abuts against the paddle clamp, the shaft portion passes through the paddle clamp, the gasket assembly and the paddle seat, and the fixing portion is fixed to the other end of the shaft portion and abuts against the paddle seat.

8. The propeller according to claim 7, characterized in that A first receiving groove is arranged on a surface of the paddle clamp facing away from the paddle seat, and the cap portion is received in the first receiving groove.

9. The propeller according to claim 7, characterized in that: A second receiving groove is arranged on a surface of the paddle seat away from the paddle blade, and the fixing portion is received in the second receiving groove.

10. An unmanned aerial vehicle, characterized in that: Comprising a propeller as described in any one of claims 1-9.

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