Propeller and unmanned aerial vehicle

Abstract

The embodiment of the utility model 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 connecting assembly, a gasket and a propeller clamp assembly, the propeller clamp assembly comprises a base and a flapping seat, the flapping seat is rotatably connected with the base, the flapping seat is provided with a clamping groove, and the clamping groove is provided with a clamping groove. One end of the paddle is inserted into the clamping groove, the gasket is arranged between the side wall of the clamping groove and the paddle in a cushion mode, the gasket abuts against the side wall of the clamping groove and the paddle, the connecting assembly penetrates through one side of the waving base, the gasket and the paddle and then is fixed to the other side of the waving base, and the connecting assembly is fixed to the other side of the waving base. The paddle can rotate relative to the connecting assembly, and the waving seat can swing back and forth relative to the rotating plane of the paddle. Through the mode, the pressure applied to the gasket by the paddle can be reduced, so that the abrasion of the gasket is reduced, and the service life of the gasket is prolonged.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to the technical field of unmanned aerial vehicle, in particular to a propeller and unmanned aerial vehicle. BACKGROUND

[0002] The unmanned aerial vehicle is widely used in aerial photography, agricultural plant protection, environmental monitoring, search and rescue, cargo transportation and other fields, and it realizes flight by driving the propeller to rotate through a power component.

[0003] However, in the process of realizing the embodiment of the utility model, the inventor finds that: at present, the propeller includes a blade holder, a blade, a connecting assembly and a gasket, the connecting assembly passes through the blade holder, the blade holder holds the blade, the blade and the gasket are both sleeved on the connecting assembly, the blade can rotate relative to the connecting assembly, the folding or unfolding of the blade is realized, the gasket is padded between the blade holder and the blade, and the gasket is abutted on the blade holder and the blade, when the propeller rotates, there is relative rotation between the blade and the blade holder in the rotation plane of the blade, the blade also swings back and forth in the direction perpendicular to the rotation plane of the blade, the pressure of the blade applied to the gasket is increased, the wear of the gasket is accelerated, and the service life of the gasket is reduced. CONTENT OF THE UTILITY MODEL

[0004] The utility model mainly solves the technical problem of providing a propeller and unmanned aerial vehicle, so as to solve the problems of accelerating the wear of the gasket and reducing the service life of the gasket.

[0005] In order to solve the above technical problems, one of the technical schemes adopted by the utility model is to provide a propeller, which comprises a blade, a gasket, a connecting assembly and a blade holder assembly, the blade holder assembly comprises a base and a flap seat, the flap seat is rotationally connected with the base, the flap seat is provided with a clamping groove, one end of the blade is inserted into the clamping groove, the gasket is padded between the side wall of the clamping groove and the blade, the gasket is abutted on the side wall of the clamping groove and the blade, the connecting assembly passes through one side of the flap seat, the gasket and the blade and is fixed with the other side of the flap seat, the blade can rotate relative to the connecting assembly, and the flap seat can swing back and forth relative to the rotation plane of the blade.

[0006] Optionally, the blade holder assembly comprises a rotating shaft, the flap seat is provided with a connecting part, the rotating shaft is inserted into the base and the connecting part, and the flap seat can swing back and forth relative to the rotation plane of the blade with the rotating shaft as the center.

[0007] Optionally, one end of the rotating shaft is provided with a stop part, the blade holder assembly comprises a stop piece, and the stop piece is clamped on the other end of the rotating shaft.

[0008] Optionally, the base is provided with a limiting slot, the connecting part is inserted into the limiting slot, the connecting part can rotate relative to the limiting slot, and the side wall of the limiting slot is used for abutting against the connecting part to limit the angle of the connecting part swinging back and forth relative to the rotation plane of the paddle.

[0009] Optionally, the connecting assembly comprises a connecting piece and a connecting shaft, the connecting piece abuts against one side of the flap seat, the connecting piece passes through one side of the flap seat, the connecting shaft abuts against the other side of the flap seat, and the connecting shaft passes through the other side of the flap seat, the gasket and the paddle and is connected and fixed with the connecting piece.

[0010] Optionally, the gasket is provided with a gasket part, and the gasket part is sleeved on the connecting shaft.

[0011] Optionally, the gasket is provided with a sleeve part, the sleeve part is fixed on the gasket part, the sleeve is sleeved on the connecting shaft, and the sleeve is inserted into the paddle.

[0012] Optionally, the number of the gaskets is two, the side wall of the clamping slot is provided with oppositely arranged first and second side walls, one gasket is arranged between the first side wall and one side of the paddle, and the other gasket is arranged between the second side wall and the other side of the paddle.

[0013] Optionally, the number of the paddles, the connecting assemblies and the flap seats is two, and the number of the gaskets is four, one gasket is arranged between the first and second side walls of the clamping slot of one flap seat and one paddle, and one connecting assembly passes through one side of one flap seat, two gaskets and one paddle and is fixed with the other side of the flap seat.

[0014] To solve the above technical problems, another technical scheme adopted by the utility model is to provide an unmanned aerial vehicle comprising the above-mentioned propeller.

[0015] The utility model discloses an embodiment of the utility model provides a propeller, the propeller includes paddle, connecting assembly, washer and paddle clamp component, paddle clamp component includes base and flapping seat, the flapping seat with base rotation is connected, the flapping seat is provided with the clamping groove, the clamping groove supplies one end of paddle and inserts, the washer is located between the lateral wall of clamping groove and paddle, the washer is supported in the lateral wall of clamping groove and paddle, the connecting assembly passes through the one side of flapping seat, washer and paddle and is fixed with the other side of flapping seat after, the paddle can rotate relative to connecting assembly, the flapping seat can swing to and fro relative to the rotation plane of paddle. When the propeller rotates, the paddle, the connecting assembly and the washer are swung to and fro along the direction perpendicular to the rotation plane of the paddle by the flapping seat, the paddle, the connecting assembly and the washer are swung to and fro synchronously, the pressure that the paddle applies to the washer is reduced, thereby the abrasion of the washer is reduced, the service life of the washer is improved, and the maintenance cycle is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained according to the drawings without creative labor for those skilled in the art.

[0017] Figure 1 It is the structural schematic diagram of the propeller provided by the utility model embodiment.

[0018] Figure 2 It is the structural cross-sectional schematic diagram of the propeller provided by the utility model embodiment.

[0019] Figure 3 It is the structural schematic diagram of the paddle clamp component of the propeller provided by the utility model embodiment.

[0020] Figure 4 It is the partial structural explosion schematic diagram of the paddle clamp component of the propeller provided by the utility model embodiment.

[0021] Mark explanation:

[0022] 100, propeller;

[0023] 1, paddle clamp component;11, base;111, first rotating hole;112, limiting groove;113, first through hole;12, flapping seat;121, connecting part;1211, second rotating hole;1212, accommodating groove;1213, second limiting plane;122, clamping groove;123, second through hole;13, rotating shaft;131, stop part;1311, first limiting plane;14, stop piece;

[0024] 2, paddle; 21, root; 211, third through hole; 22, blade portion;

[0025] 3, washer; 31, gasket portion;

[0026] 4, connecting assembly; 41, connecting piece; 42, connecting shaft; 421, threaded hole;

[0027] 200, locking piece. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as "locked to" another element, it can be directly on the other element, or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the present specification are only for the purpose of illustration.

[0029] Unless otherwise defined, all technical and scientific terms used in the present specification are the same as those commonly understood by a person skilled in the art to which the present application belongs. The terms used in the present specification are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used in the present specification includes any and all combinations of one or more related listed items.

[0030] Please refer to Figure 1 and Figure 2 , the propeller 100 includes a paddle clamp assembly 1, a paddle 2, a washer 3 and a connecting assembly 4. The paddle clamp assembly 1 clamps the paddle 2, and the paddle clamp assembly 1 is used to be connected with a power piece. The washer 3 is provided between the paddle 2 and the paddle clamp assembly 1. The connecting assembly 4 is fixed with the other side of the paddle clamp assembly 1 after passing through one side of the paddle clamp, the washer 3 and the paddle 2, and the paddle 2 can rotate around the connecting assembly 4 to realize folding or unfolding the paddle 2.

[0031] For the above-mentioned paddle clamp assembly 1, please refer to Figure 3 and Figure 4 , the paddle clamp assembly 1 includes a base 11, a flap seat 12, a rotating shaft 13 and a stop piece 14. The base 11 is used to be connected with a power piece. The flap seat 12 clamps the paddle 2, and the flap seat 12 is rotationally connected with the base 11. The rotating shaft 13 is inserted into the flap seat 12 and the base 11, and the flap seat 12 can swing back and forth relative to the rotation plane of the paddle 2 with the rotating shaft 13 as the center. The stop piece 14 is clamped to the other end of the rotating shaft 13, and the stop piece 14 is used to abut against the flap seat 12.

[0032] The base 11 is provided with a first rotating hole 111 and a limiting slot 112. The first rotating hole 111 is for inserting the rotating shaft 13. The limiting slot 112 is communicated with the first rotating hole 111, and the limiting slot 112 is for inserting part of the oscillating seat 12 to limit the angle of the oscillating seat 12 relative to the rotating plane of the blade 2.

[0033] In some embodiments, the base 11 comprises a first through hole 113 for inserting the locking member 200 to connect and fix the power member, thereby connecting and fixing the base 11 with the power member.

[0034] In some embodiments, the locking member 200 is a bolt.

[0035] The oscillating seat 12 is provided with a connecting part 121, a clamping slot 122 and a second through hole 123. The connecting part 121 is inserted into the limiting slot 112, and the connecting part 121 is provided with a second rotating hole 1211 for inserting the rotating shaft 13, so that the connecting part 121 oscillates relative to the limiting slot 112 with the rotating shaft 13 as the center, and the side wall of the limiting slot 112 is used to abut against the connecting part 121 to limit the angle of the oscillating seat 12 relative to the rotating plane of the blade 2. The clamping slot 122 is for inserting one end of the blade 2 to clamp the blade 2 by the oscillating seat 12. The second through hole 123 is communicated with the clamping slot 122, and the second through hole 123 is for inserting the connecting assembly 4 to connect and fix the connecting assembly 4 with the oscillating seat 12. By the oscillating seat 12 being able to oscillate relative to the rotating plane of the blade 2, when the propeller 100 rotates, the blade 2, the connecting assembly 4 and the washer 3 are synchronously oscillated, the pressure applied by the blade 2 to the washer 3 is reduced, the wear of the washer 3 is reduced, the service life of the washer 3 is prolonged, the maintenance period is prolonged, and the vibration of the blade 2 is reduced to be transmitted to the unmanned aerial vehicle through the base 11, thereby improving the flight stability of the unmanned aerial vehicle.

[0036] One end of the rotating shaft 13 is provided with a stop part 131 for abutting against the base 11, and the stop part 131 and the stop member 14 jointly prevent the rotating shaft 13 from falling off.

[0037] In some embodiments, the connecting part 121 is provided with a receiving slot 1212 communicated with the second rotating hole 1211, and the receiving slot 1212 receives the stop part 131, and the stop part 131 abuts against the bottom of the receiving slot 1212.

[0038] In some embodiments, the stop part 131 is provided with a first limiting plane 1311, and the side wall of the receiving slot 1212 is provided with a second limiting plane 1213 abutting against the first limiting plane 1311.

[0039] In some embodiments, the number of the connecting portions 121 and the limiting grooves 112 is two, the two connecting portions 121 are oppositely arranged, the two limiting grooves 112 are oppositely arranged, one connecting portion 121 is inserted into one limiting groove 112, the stop portion 131 is used for abutting against one connecting portion 121, and the stop piece 14 is used for abutting against the other connecting portion 121.

[0040] For the paddle 2, please refer to Figure 1 and Figure 2 , the paddle 2 comprises a root portion 21 and a blade portion 22. The root portion 21 is inserted into the clamping groove 122, the root portion 21 abuts against the gasket 3, the root portion 21 is provided with a third through hole 211, the third through hole 211 is used for the connecting assembly 4 to pass through, so that the root portion 21 is sleeved on the connecting assembly 4. The blade portion 22 is fixed to the root portion 21.

[0041] For the gasket 3, please refer to Figure 2 , the gasket 3 is provided with a gasket portion 31, the gasket portion 31 is arranged between the side wall of the clamping groove 122 and the root portion 21, the gasket portion 31 abuts against the side wall of the clamping groove 122 and the root portion 21, and the gasket portion 31 is sleeved on the connecting assembly 4.

[0042] It should be noted that the side wall of the clamping groove 122 is provided with oppositely arranged first and second side walls, the gasket 3 is arranged between the first side wall of the clamping groove 122 and one side of the root portion 21, or arranged between the second side wall of the clamping groove 122 and the other side of the root portion 21.

[0043] It can be understood that in some embodiments, the gasket 3 is not limited to the above structure, and the gasket 3 can also have other structures, for example, the gasket 3 further comprises a sleeve portion (not shown), the sleeve portion is fixed to the gasket portion 31, the sleeve portion is sleeved on the connecting assembly 4, and the sleeve portion is inserted into the third through hole 211. Furthermore, in some embodiments, the root portion 21 is provided with a groove (not shown), the groove is communicated with the third through hole 211, and the sleeve is inserted into the groove.

[0044] In some embodiments, the number of the gaskets 3 is two, one gasket 3 is arranged between the first side wall and one side of the root portion 21, and the other gasket 3 is arranged between the second side wall and the other side of the root portion 21.

[0045] For the connecting assembly 4, please refer to Figure 2 , the connecting assembly 4 comprises a connecting piece 41 and a connecting shaft 42. The connecting piece 41 abuts against one side of the flap seat 12, and the connecting piece 41 extends into the clamping groove 122 after passing through one end of the second through hole 123. The connecting shaft 42 abuts against the other side of the flap seat 12, the connecting shaft 42 is connected and fixed with the connecting piece 41 after passing through the other end of the second through hole 123, the gasket 3 and the third through hole 211, so that the connecting assembly 4 is connected and fixed with the flap seat 12. The paddle 2 can rotate around the connecting shaft 42, so that the paddle 2 is folded or unfolded.

[0046] In some embodiments, the connecting member 41 is a bolt, and the connecting shaft 42 is provided with a threaded hole 421, and the bolt is screwed into the threaded hole 421.

[0047] In some embodiments, the number of the paddle 2, the connecting assembly 4 and the waving seat 12 is at least two, and the number of the gasket 3 is at least four, one gasket 3 is arranged between the first side wall and the second side wall of the clamping groove 122 of one waving seat 12, and one connecting assembly 4 is fixed to the other side of one waving seat 12 after passing through one side of the waving seat 12, two gaskets 3 and one paddle 2. The waving seat 12 can swing back and forth relative to the rotation plane of the paddle 2, thereby reducing the pressure applied by the paddle 2 to the gasket 3 when the propeller 100 rotates, reducing the friction, and reducing the front and rear vibration damping of the paddle 2, thereby facilitating the flight stability of the unmanned aerial vehicle.

[0048] In the embodiments of the utility model, the propeller 100 comprises a paddle 2, a connecting assembly 4, a gasket 3 and a paddle clamp assembly 1, the paddle clamp assembly 1 comprises a base 11 and a waving seat 12, the waving seat 12 is rotationally connected with the base 11, the waving seat 12 is provided with a clamping groove 122, the clamping groove 122 is used for inserting one end of the paddle 2, the gasket 3 is arranged between the side wall of the clamping groove 122 and the paddle 2, the gasket 3 abuts against the side wall of the clamping groove 122 and the paddle 2, the connecting assembly 4 is fixed to the other side of the waving seat 12 after passing through one side of the waving seat 12, the gasket 3 and the paddle 2, the paddle 2 can rotate relative to the connecting assembly 4, and the waving seat 12 can swing back and forth relative to the rotation plane of the paddle 2. When the propeller 100 rotates, the paddle 2, the connecting assembly 4 and the gasket 3 are driven by the waving seat 12 to swing back and forth in the direction perpendicular to the rotation plane of the paddle 2, thereby realizing the synchronous back-and-forth swinging of the paddle 2, the connecting assembly 4 and the gasket 3, reducing the pressure applied by the paddle 2 to the gasket 3, thereby reducing the wear of the gasket 3, prolonging the service life of the gasket 3 and prolonging the maintenance period.

[0049] The utility model also provides an unmanned aerial vehicle, which comprises the propeller 100 described above.

[0050] It should be noted that the description and drawings of the utility model give the preferred embodiments of the utility model, however, the utility model can be realized through many different forms, and is not limited to the embodiments described in the description, the embodiments are not as additional limitation to the content of the utility model, the purpose of providing the embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Furthermore, the above technical features continue to combine, form various embodiments not listed above, which are considered as the range of the description of the utility model; further, for those skilled in the art, the above description can be improved or transformed, and all these improvements and transformations should belong to the protection scope of the utility model claims.

Claims

1. A propeller, characterized in that Comprise: a paddle; a gasket; a connecting assembly; a paddle clamp assembly, comprising a base and a flap seat, the flap seat being rotatably connected with the base, the flap seat being provided with a clamp slot for inserting one end of the paddle, the gasket being arranged between the sidewall of the clamp slot and the paddle, the gasket being abutted against the sidewall of the clamp slot and the paddle, the connecting assembly being fixed after passing through one side of the flap seat, the gasket and the paddle, and the other side of the flap seat, the paddle being rotatable relative to the connecting assembly, and the flap seat being swingable relative to the rotation plane of the paddle.

2. The propeller according to claim 1, wherein the paddle clamp assembly comprises a rotating shaft, the flap seat is provided with a connecting portion, the rotating shaft is inserted into the base and the connecting portion, and the flap seat is swingable relative to the rotation plane of the paddle with the rotating shaft as the center.

3. The propeller according to claim 2, wherein one end of the rotating shaft is provided with a stop portion, the paddle clamp assembly comprises a stop piece, and the stop piece is clamped to the other end of the rotating shaft.

4. The propeller according to claim 2, wherein the base is provided with a limiting slot, the connecting portion is inserted into the limiting slot, the connecting portion is rotatable relative to the limiting slot, and the sidewall of the limiting slot is used for abutting against the connecting portion to limit the angle of swing of the connecting portion relative to the rotation plane of the paddle.

5. The propeller according to claim 1, wherein the connecting assembly comprises a connecting piece and a connecting shaft, the connecting piece is abutted against one side of the flap seat, the connecting piece passes through one side of the flap seat, the connecting shaft is abutted against the other side of the flap seat, the connecting shaft passes through the other side of the flap seat, the gasket and the paddle, and is then connected and fixed with the connecting piece.

6. The propeller according to claim 5, wherein the gasket is provided with a gasket portion, and the gasket portion is sleeved on the connecting shaft.

7. The propeller according to claim 6, wherein the gasket is provided with a sleeve portion, the sleeve portion is fixed to the gasket portion, the sleeve is sleeved on the connecting shaft, and the sleeve is inserted into the paddle.

8. The propeller according to any one of claims 1-7, wherein the number of the gaskets is two, the sidewall of the clamp slot is provided with oppositely arranged first sidewall and second sidewall, one gasket is arranged between the first sidewall and one side of the paddle, and the other gasket is arranged between the second sidewall and the other side of the paddle.

9. The propeller according to claim 8, wherein the number of the paddles, the connecting assemblies and the flap seats is two, and the number of the gaskets is four, one gasket is arranged between the first sidewall and the second sidewall of the clamp slot of one flap seat and one paddle respectively, and one connecting assembly is fixed after passing through one side of one flap seat, two gaskets and one paddle, and the other side of the flap seat.

10. An unmanned aerial vehicle, comprising: Comprise the propeller according to any one of claims 1-9.

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