Paddle clamp device and unmanned aerial vehicle

Abstract

This application relates to the field of unmanned aerial vehicle (UAV) technology, and particularly discloses a propeller clamping device and a UAV. The propeller clamping device includes a propeller blade, a propeller clamping seat, a vibration damping mechanism, and a base assembly. The propeller clamping seat has a first clamping portion and a second clamping portion, symmetrically arranged on both sides of the propeller clamping seat along a first direction. The first clamping portion clamps one propeller blade, and the second clamping portion clamps another propeller blade. The vibration damping mechanism includes a first shim and a second shim. Along a second direction, two first shims are respectively disposed on both sides of the propeller blade and located between the propeller blade and the first clamping portion, and two second shims are respectively disposed on both sides of another propeller blade and located between the propeller blade and the second clamping portion. The propeller clamping seat is mounted on the base assembly. Through the above structure, the first shims and the second shims can improve the force transmission path between the propeller blade and the first and second clamping portions, absorb the vibration and impact force in the rotational axis when the propeller blade rotates, reduce friction and wear between the propeller blade and the propeller clamping seat, and extend service life.

Description

Technical Field

[0001] This application relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a propeller clamping device and a UAV. Background Technology

[0002] During high-speed flight, propeller vibration in drones severely impacts flight stability and equipment lifespan. Current technologies primarily address propeller vibration in multi-rotor drones through aerodynamic imbalance, motor speed fluctuations, and structural resonance, leading to issues such as blurred image acquisition and increased flight control system errors. Traditional solutions, such as adding damping materials or optimizing propeller aerodynamics, can alleviate some vibration, but they struggle to simultaneously meet the requirements of lightweight design and wide-bandwidth vibration reduction. This is especially true for small consumer drones, where weight and cost constraints result in even more limited vibration suppression effectiveness.

[0003] In recent years, although some studies have used active control algorithms or smart materials for vibration compensation, technical bottlenecks such as response delay and high energy consumption still exist. Therefore, developing efficient and low-cost blade vibration suppression technology is of great application value for improving the flight accuracy of UAVs and extending the service life of components. Utility Model Content

[0004] The main technical problem addressed by the embodiments of this application is to provide a propeller clamping device and a drone that can improve the current situation where drone propeller vibration affects drone flight accuracy and shortens drone service life.

[0005] To solve the above-mentioned technical problems, this application adopts a technical solution of providing a propeller clamping device. The propeller clamping device includes a propeller blade, a propeller clamping seat, a vibration damping mechanism, and a base assembly. The propeller clamping seat is provided with a first clamping portion and a second clamping portion. Along a first direction, the first clamping portion and the second clamping portion are symmetrically arranged on both sides of the propeller clamping seat. The first clamping portion clamps one propeller blade, and the second clamping portion clamps another propeller blade. The vibration damping mechanism includes a first pad and a second pad. Along a second direction, two first pads are respectively disposed on both sides of the propeller blade, and one first pad is located between the propeller blade and the first clamping portion. Along the second direction, two second pads are respectively disposed on both sides of another propeller blade, and one second pad is located between the propeller blade and the second clamping portion. The propeller clamping seat is mounted on the base assembly. The first direction is perpendicular to the second direction and parallel to the rotation axis of the propeller blade.

[0006] In one or more embodiments, the vibration damping mechanism further includes a third pad and a fourth pad. Along the second direction, two third pads are respectively disposed between the first pads of the blade. When viewed along the second direction, the projection of the third pad is larger than the projection of the first pad, and the third pad and the first clamping portion together form a damping space. Along the second direction, two fourth pads are respectively disposed between the second pads of the blade. When viewed along the second direction, the projection of the fourth pad is larger than the projection of the second pad, and the fourth pad and the second clamping portion together form another damping space.

[0007] In one or more embodiments, the first gasket is configured as a high-elasticity gasket, and the second gasket is configured as a high-elasticity gasket.

[0008] In one or more embodiments, the vibration damping mechanism further includes a first pin, a first locking member, a second pin, and a second locking member. The first pin passes through the first clamp, the blade, the first washer, and the third washer along the second direction. The first locking member, together with the first pin, is used to fix the first clamp and one blade. The second pin passes through the second clamp, the blade, the second washer, and the fourth washer along the second direction. The second locking member, together with the second pin, is used to fix the second clamp and another blade.

[0009] In one or more embodiments, the propeller holder further includes a base body, with the first clamping portion and the second clamping portion disposed on both sides of the base body. The base body is provided with a first shaft hole and vibration damping beams. The first shaft hole extends along a third direction, and the axis of the first shaft hole is perpendicular to the rotation axes of the two propeller blades. A plurality of vibration damping beams are connected to the first shaft hole from a portion of the outer periphery of the base body, forming a vibration damping space between adjacent vibration damping beams. The third direction is perpendicular to the first direction and the second direction.

[0010] In one or more embodiments, the base assembly includes a base body and a vibration damping pad. The base body has a recessed mounting groove along the second direction, the mounting groove extending through the first direction, and a second shaft hole along the third direction, penetrating both sides of the mounting groove. The first shaft hole and the second shaft hole are coaxial, and the base body is mounted in the mounting groove. The vibration damping pad is fastened to the base body and located at the bottom of the mounting groove, between the base body and the base body.

[0011] In one or more embodiments, the base assembly further includes a stepped shaft and a bearing. The stepped shaft passes through the first shaft hole, the second shaft hole, and the bearing along the third direction. The bearing is received in the first shaft hole. The stepped shaft has a first shaft portion and a second shaft portion. The first shaft portion is rotatably engaged with the bearing, and the second shaft portion is rotatably engaged with the second shaft hole.

[0012] In one or more embodiments, the stepped shaft includes a first shaft body, a second shaft body, and a third locking member. The first shaft body and the second shaft body are connected and fixed by the third locking member. The first shaft portion is disposed on the first shaft body, one second shaft portion is disposed on the first shaft body, and another second shaft portion is disposed on the second shaft body.

[0013] In one or more embodiments, the base body is further provided with positioning holes and snap-fit ​​holes, both of which are located at the bottom of the mounting groove. The two snap-fit ​​holes are arranged on both sides of the positioning hole along a first direction. The vibration damping pad is provided with a vibration damping part, a first positioning part, and a second positioning part. The first positioning part is inserted and fixed to the positioning hole, and the second positioning part is snap-fitted and fixed to the snap-fit ​​hole. The vibration damping part is disposed between the base body and the seat body.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a drone, the drone including the above-mentioned propeller clamping device, as well as a fourth locking member, a motor and a drone body, the propeller clamping device being mounted to the motor through the fourth locking member, and the motor being mounted to the drone body.

[0015] The beneficial effects of this application embodiment are as follows: Unlike the prior art, this application embodiment provides a propeller clamping device. The propeller clamping device includes a propeller blade, a propeller clamping seat, a vibration damping mechanism, and a base assembly. The propeller clamping seat is provided with a first clamping portion and a second clamping portion. Along a first direction, the first clamping portion and the second clamping portion are symmetrically arranged on both sides of the propeller clamping seat. The first clamping portion clamps one propeller blade, and the second clamping portion clamps another propeller blade. The vibration damping mechanism includes a first pad and a second pad. Along a second direction, two first pads are respectively arranged on both sides of the propeller blade, and one first pad is located between the propeller blade and the first clamping portion. Along the second direction, two second pads are respectively arranged on both sides of another propeller blade, and one second pad is located between the propeller blade and the second clamping portion. The propeller clamping seat is mounted on the base assembly. The first direction is perpendicular to the second direction and parallel to the rotation axis of the propeller blade. With the above structure, the first and second gaskets can improve the force transmission path between the blade and the first and second clamps, absorb the vibration and impact force in the rotation axis when the blade rotates, reduce the friction and wear between the blade and the blade clamp, and extend the service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a partial perspective view of a drone provided in one embodiment of this application;

[0018] Figure 2 This is a partial exploded view of a drone provided in one embodiment of this application;

[0019] Figure 3 This is a partial perspective view of a paddle clamping device provided in one embodiment of this application;

[0020] Figure 4 This is a partially exploded view of a paddle clamp device provided in one embodiment of this application;

[0021] Figure 5 This is a schematic diagram of a base component provided in one embodiment of this application;

[0022] Figure 6 This application provides Figure 5 A-section view;

[0023] Figure 7This is an exploded view of a base assembly provided in one embodiment of this application;

[0024] Figure 8 This is a schematic diagram of a vibration damping pad provided in one embodiment of this application.

[0025] The reference numerals for UAV 1 are as follows:

[0026] Detailed Implementation

[0027] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] Multirotor drones, a common type of civilian drone, offer high functional expandability and are applicable to various work fields. During operation, the rotor blades of a multirotor drone change speed according to the flight commands (ascent, descent, turning, etc.). These changes in rotor speed cause vibration, which significantly affects the drone's flight stability, consequently impacting image quality and reducing blade lifespan.

[0030] Based on this, please refer to Figure 1 and Figure 2 This application provides a drone 1, including a propeller clamping device 1000, a fourth locking member 2000, a motor 3000 and a drone body (not shown in the figure). The propeller clamping device 1000 is mounted to the motor 3000 via the fourth locking member 2000, and the motor 3000 is mounted to the drone body.

[0031] The propeller clamp device 1000 can significantly improve the impact of propeller blade 1100 vibration on the flight stability of the UAV 1 and extend the service life of the propeller blade 1100. For details on how this is achieved, please refer to the following text.

[0032] For the aforementioned propeller clamp device 1000, please refer to Figure 2 and Figure 3 The propeller clamping device 1000 includes a propeller blade 1100, a propeller clamping seat 1200, a shock absorption mechanism 1300, and a base assembly 1400. The propeller clamping seat 1200 is provided with a first clamping portion 1210 and a second clamping portion 1220. Along the first direction F1, the first clamping portion 1210 and the second clamping portion 1220 are symmetrically arranged on both sides of the propeller clamping seat 1200. The first clamping portion 1210 clamps one propeller blade 1100, and the second clamping portion 1220 clamps another propeller blade 1100. The damping mechanism 1300 includes a first shim 1310 and a second shim 1320. Along the second direction F2, the two first shims 1310 are respectively disposed on both sides of the blade 1100, with one first shim 1310 located between the blade 1100 and the first clamping portion 1210. Along the second direction F2, the two second shims 1320 are respectively disposed on both sides of another blade 1100, with one second shim 1320 located between the blade 1100 and the second clamping portion 1220. The blade clamp seat 1200 is mounted on the base assembly 1400. The first direction F1 is perpendicular to the second direction F2 and parallel to the rotation axis of the blade 1100.

[0033] Through the above structure, the first gasket 1310 and the second gasket 1320 can improve the force transmission path between the blade 1100 and the first clamp 1210 and the second clamp 1220, absorb the vibration and impact force in the rotational axis when the blade 1100 rotates, reduce the friction and wear between the blade 1100 and the blade holder 1200, and extend the service life. Specifically, the first clamp 1210 is set as a semi-circular arc protruding away from the second clamp 1220. The part connecting the blade 1100 is also set as a semi-circular arc for easy folding and rotation. By adding the first gasket 1310, both the first clamp 1210 and the blade 1100 are in contact with the first gasket 1310 when they rotate relative to each other, thereby making full use of the first gasket 1310 to absorb vibration and reduce the interference caused by vibration. Optionally, the diameter of the first pad 1310 is smaller than the diameter of the first clamp 1210 and the arc-shaped region of the blade 1100, thereby reducing friction between the blade 1100 and the first clamp 1210 and improving the service life of the blade 1100. Correspondingly, the second clamp 1220 is configured as a semi-circular arc protruding away from the first clamp 1210, and the part connecting the blade 1100 is also configured as a semi-circular arc for easy folding and rotation. By adding the second pad 1320, both the second clamp 1220 and the blade 1100 contact the second pad 1320 when rotating relative to each other, thereby fully utilizing the second pad 1320 to absorb vibration and reduce interference caused by vibration. Optionally, the diameter of the second pad 1320 is smaller than the diameter of the second clamp 1220 and the arc-shaped region of the blade 1100, thereby reducing friction between the blade 1100 and the second clamp 1220 and further improving the service life of the blade 1100.

[0034] In some embodiments, please refer to Figure 3 and Figure 4 The shock absorption mechanism 1300 also includes a third gasket 1330 and a fourth gasket 1340.

[0035] In some embodiments, along the second direction F2, two third pads 1330 are respectively disposed between the first pads 1310 of the blade 1100. When viewed along the second direction F2, the projection of the third pads 1330 is greater than the projection of the first pads 1310. The third pads 1330 and the first clamping portion 1210 together form a damping space 1350.

[0036] In some embodiments, along the second direction F2, two fourth pads 1340 are respectively disposed between the second pads 1320 of the blade 1100. When viewed along the second direction F2, the projection of the fourth pad 1340 is greater than the projection of the second pad 1320. The fourth pad 1340 and the second clamping portion 1220 together form another damping space 1350.

[0037] That is, a third gasket 1330 is added between the first gasket 1310 and the blade 1100, and the projection of the third gasket 1330 is larger than that of the first gasket 1310, thereby further increasing the contact area between the first gasket 1310 and the blade 1100, thereby reducing the stress concentration phenomenon of the blade 1100 and improving the service life of the blade 1100. Correspondingly, a third gasket 1330 is added between the first gasket 1310 and the blade 1100, and the projection of the third gasket 1330 is larger than that of the first gasket 1310, thereby further increasing the contact area between the first gasket 1310 and the blade 1100, thereby reducing the stress concentration phenomenon of the blade 1100 and improving the service life of the blade 1100.

[0038] In some embodiments, the first gasket 1310 is configured as a high-elasticity gasket, and the second gasket 1320 is configured as a high-elasticity gasket. This allows the first gasket 1310 and the second gasket 1320 to isolate dynamic vibration loads. At the same time, the combination of the first gasket 1310 and the third gasket 1330, and the combination of the second gasket 1320 and the fourth gasket 1340, forms a gasket group that further enhances the vibration damping capability of the paddle holder 1200 through the damping space 1350. Specifically, along the second direction F2, at the first clamping part, the first clamping part, the first gasket 1310, the third gasket 1330, the blade 1100, another third gasket 1330, another first gasket 1310, and the first clamping part are arranged in sequence; correspondingly, at the second clamping part, the second clamping part, the second gasket 1320, the fourth gasket 1340, the blade 1100, another fourth gasket 1340, another second gasket 1320, and the second clamping part are arranged in sequence.

[0039] In some embodiments, please refer to Figure 4 The shock absorption mechanism 1300 also includes a first pin 1360, a first locking element 1370, a second pin 1380, and a second locking element 1390.

[0040] In some embodiments, the first pin 1360 passes through the first clamp 1210, the blade 1100, the first washer 1310 and the third washer 1330 along the second direction F2, and the first locking member 1370 and the first pin 1360 are used together to fix the first clamp 1210 and the blade 1100.

[0041] In some embodiments, the second pin 1380 passes through the second clamp 1220, the blade 1100, the second washer 1320 and the fourth washer 1340 along the second direction F2, and the second locking member 1390 and the second pin 1380 are used together to fix the second clamp 1220 and the other blade 1100.

[0042] By setting the first pin 1360 and the second pin 1380, the rotational flexibility of the blade 1100 is improved. Installing the blade 1100 onto the first clamp 1210 and the second clamp 1220 respectively enables precise positioning of the blade 1100. The separate design of the pins and locking components facilitates installation and disassembly. Optionally, the first locking component 1370 can be a screw, bolt, etc., and the second locking component 1390 can also be a screw, bolt, etc.

[0043] In some embodiments, please refer to Figure 3 and Figure 4 The propeller holder 1200 also includes a base 1230, with a first clamping part 1210 and a second clamping part 1220 disposed on both sides of the base 1230. The base 1230 has a first shaft hole 1231 and a vibration damping beam 1232. That is, along the first direction F1, the first clamping part 1210, the base 1230, and the second clamping part 1220 are sequentially arranged, symmetrically positioned on both sides of the base 1230, thereby ensuring smooth rotation of the propeller blade 1100. By providing the vibration damping beam 1232, the force distribution of the base 1230 is further optimized, allowing for further force distribution and improvement in both the first direction F1 and the second direction F2, thus enhancing the load-bearing capacity of the base 1230.

[0044] It should be noted that the extension directions of the first clamp 1210 and the second clamp 1220 may be at an angle. Optionally, the ends of the first clamp 1210 and the second clamp 1220 near the seat 1230 are inclined toward the base assembly 1400.

[0045] In some embodiments, the first shaft hole 1231 extends along a third direction F3, and the axis of the first shaft hole 1231 is perpendicular to the rotation axis of the two blades 1100.

[0046] In some embodiments, please refer to Figure 3 and Figure 4 Multiple damping beams 1232 are connected to the first shaft hole 1231 from part of the outer periphery of the seat body 1230, and a damping space is formed between two adjacent damping beams 1232. It can be understood that the damping beams 1232 are arranged in a divergent pattern around the periphery of the first shaft hole 1231, distributed on the side of the seat body 1230 near the base. No damping beams 1232 are provided on the side of the first shaft hole 1231 away from the base assembly 1400, thereby reducing the hollow design of the seat body 1230 and improving the structural strength of the seat body 1230. The third direction F3 is perpendicular to the first direction F1 and the second direction F2.

[0047] In some embodiments, please refer to Figures 5 to 8The base assembly 1400 includes a base body 1410 and a damping pad 1420. By placing the damping pad 1420 between the base body 1410 and the base 1230, the damping capability of the paddle clamp device 1000 is further improved.

[0048] In some embodiments, the base body 1410 is recessed along the second direction F2 with a mounting groove 1411 extending through the first direction F1. The base body 1410 is provided with a second shaft hole 1412 along the third direction F3, the second shaft hole 1412 penetrating both sides of the mounting groove 1411. The first shaft hole 1231 and the second shaft hole 1412 are coaxial, and the seat body 1230 is installed in the mounting groove 1411. That is, the seat body 1230 and the base body 1410 can be fixedly installed by the coaxial connection of the first shaft hole 1231 and the second shaft hole 1412.

[0049] In some embodiments, please refer to Figures 5 to 8 The damping pad 1420 is fastened to the base body 1410 and located at the bottom of the mounting groove 1411. The damping pad 1420 is located between the seat body 1230 and the base body 1410. When the blade 1100 is working, the up-and-down swing of the blade 1100 is transmitted to the seat body 1230 through the first pad 1310 and the third pad 1330, or the second pad 1320 and the fourth pad 1340, respectively, causing the seat body 1230 to swing up and down. The damping pad 1420 resists the vibration caused by the swing, thereby effectively reducing the swing of the blade 1100.

[0050] In some embodiments, please refer to Figure 7 The base assembly 1400 also includes a stepped shaft 1430 and a bearing 1440.

[0051] In some embodiments, the stepped shaft 1430 passes through the first shaft hole 1231, the second shaft hole 1412 and the bearing 1440 along the third direction F3. The bearing 1440 is received in the first shaft hole 1231. The stepped shaft 1430 has a first shaft portion 1431 and a second shaft portion 1432. The first shaft portion 1431 is rotatably engaged with the bearing 1440, and the second shaft portion 1432 is rotatably engaged with the second shaft hole 1412.

[0052] It is understandable that the bearing 1440 improves the mobility between the stepped shaft 1430 and the base 1230, and the stepped shaft 1430 allows for a non-uniform axial distance between the bearing 1440 and the second shaft hole 1412. Simultaneously, the second shaft portion 1432 can engage and secure the bearing 1440, preventing it from dislodging from the first shaft hole 1231. Optionally, the number of bearings 1440 is two.

[0053] Further, please refer to Figure 7The stepped shaft 1430 includes a first shaft body 1433, a second shaft body 1434, and a third locking member 1435. The first shaft body 1433 and the second shaft body 1434 are connected and fixed by the third locking member 1435. A first shaft portion 1431 is disposed on the first shaft body 1433, a second shaft portion 1432 is disposed on the first shaft body 1433, and another second shaft portion 1432 is disposed on the second shaft body 1434. This facilitates the installation and disassembly of the stepped shaft 1430.

[0054] In some embodiments, please refer to Figure 7 The base body 1410 is also provided with positioning holes 1413 and snap-fit ​​holes 1414. Positioning holes 1413 and snap-fit ​​holes 1414 are both located at the bottom of the mounting groove 1411. The two snap-fit ​​holes 1414 are arranged on both sides of the positioning hole 1413 along the first direction F1.

[0055] In some embodiments, the vibration damping pad 1420 is provided with a damping part 1421, a first positioning part 1422, and a second positioning part 1423. The first positioning part 1422 is inserted and fixedly connected to the positioning hole 1413, and the second positioning part 1423 is snapped and fixedly connected to the snap-fit ​​hole 1414. The damping part 1421 is disposed between the base body 1410 and the seat body 1230. The damping part 1421 contacts both the base body 1410 and the seat body 1230, thereby reducing the vibration between them.

[0056] The above structure improves the installation stability of the vibration damping pad 1420 through the dual positioning and fixing structure. The first positioning part 1422 and the positioning hole 1413 can also provide a guiding function. The first positioning part 1422 is provided in the shape of a cylindrical boss, and the positioning hole 1413 is provided in the shape of a circular through hole. The second positioning part 1423 is provided in the shape of a barb, which passes through the snap-fit ​​hole 1414 and snaps onto the other side of the base body 1410 away from the seat body 1230.

[0057] This application aims to provide a propeller clamping device 1000. The propeller clamping device 1000 includes a propeller blade 1100, a propeller clamping seat 1200, a shock absorption mechanism 1300, and a base assembly 1400. The propeller clamping seat 1200 is provided with a first clamping portion 1210 and a second clamping portion 1220. Along a first direction F1, the first clamping portion 1210 and the second clamping portion 1220 are symmetrically arranged on both sides of the propeller clamping seat 1200. The first clamping portion 1210 clamps one propeller blade 1100, and the second clamping portion 1220 clamps another propeller blade 1100. The damping mechanism 1300 includes a first shim 1310 and a second shim 1320. Along the second direction F2, the two first shims 1310 are respectively disposed on both sides of the blade 1100, with one first shim 1310 located between the blade 1100 and the first clamping portion 1210. Along the second direction F2, the two second shims 1320 are respectively disposed on both sides of another blade 1100, with one second shim 1320 located between the blade 1100 and the second clamping portion 1220. The blade clamp seat 1200 is mounted on the base assembly 1400. The first direction F1 is perpendicular to the second direction F2 and parallel to the rotation axis of the blade 1100. Through the above structure, the first gasket 1310 and the second gasket 1320 can improve the force transmission path between the blade 1100 and the first clamp 1210 and the second clamp 1220, reduce the vibration of the blade 1100, absorb the vibration and impact force in the rotation axis when the blade 1100 rotates, reduce the friction and wear between the blade 1100 and the blade holder 1200, and extend the service life.

[0058] Based on the same inventive concept, this application also provides a drone 1, which includes the aforementioned propeller clamping device 1000, fourth locking member 2000, motor, and drone body. The propeller clamping device 1000 is mounted to the motor 3000 via the fourth locking member 2000, and the motor 3000 is mounted to the drone body. The functions and effects of the above structure are described above and will not be repeated here. Therefore, the drone 1 provided by this application can also reduce friction and wear between the propeller blade 1100 and the propeller clamping seat 1200, extend service life, improve the force transmission path, and reduce the vibration of the propeller blade 1100.

[0059] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A paddle clamp device, characterized by, include: Paddle blades; The propeller holder has a first clamping part and a second clamping part. Along a first direction, the first clamping part and the second clamping part are symmetrically arranged on both sides of the propeller holder. The first clamping part clamps one propeller blade, and the second clamping part clamps another propeller blade. A vibration damping mechanism includes a first pad and a second pad. Along a second direction, the two first pads are respectively disposed on both sides of the blade, with one first pad located between the blade and the first clamping portion. Along the second direction, the two second pads are respectively disposed on both sides of another blade, with one second pad located between the blade and the second clamping portion; and... Base assembly, wherein the propeller clamp is mounted on the base assembly; The first direction is perpendicular to the second direction, and the first direction is parallel to the rotation axis of the blade.

2. The paddle clamp device of claim 1, wherein, The vibration damping mechanism also includes: A third gasket, along the second direction, two third gaskets are respectively disposed between the first gaskets of the blade. When viewed along the second direction, the projection of the third gasket is larger than the projection of the first gasket. The third gasket and the first clamping portion together form a vibration damping space; and... The fourth pad, along the second direction, is respectively disposed between the second pad of the blade. When viewed along the second direction, the projection of the fourth pad is larger than the projection of the second pad. The fourth pad and the second clamping part together form another damping space.

3. The paddle clamp device of claim 2, wherein, The first gasket is configured as a high-elasticity gasket, and the second gasket is configured as a high-elasticity gasket.

4. The paddle clamp device of claim 2, wherein, The vibration damping mechanism further includes a first pin, a first locking element, a second pin, and a second locking element; The first pin passes through the first clamp, the blade, the first washer, and the third washer along the second direction. The first locking member and the first pin are used together to fix the first clamp and the blade. The second pin passes through the second clamp, the blade, the second washer, and the fourth washer along the second direction. The second locking member and the second pin are used together to fix the second clamp and the other blade.

5. The paddle clamp device of claim 1, wherein, The propeller clamp seat is also provided with a base body, the first clamping part and the second clamping part are provided on both sides of the base body, and the base body is provided with a first shaft hole and a vibration damping beam; The first shaft hole extends in a third direction, and the axis of the first shaft hole is perpendicular to the rotation axis of the two blades. Multiple vibration damping beams are connected from a portion of the outer periphery of the base body to the first shaft hole, and a vibration damping space is formed between two adjacent vibration damping beams; The third direction is perpendicular to the first direction and the second direction.

6. The paddle clamp device of claim 5, wherein, The base assembly includes a base body and a vibration damping pad; The base body is recessed along the second direction and has a mounting groove that extends through the first direction. The base body is provided with a second shaft hole along the third direction. The second shaft hole penetrates both sides of the mounting groove. The first shaft hole and the second shaft hole are coaxial. The base body is installed in the mounting groove. The vibration damping pad is fastened to the base body and located at the bottom of the mounting groove, with the vibration damping pad positioned between the base body and the base body.

7. The paddle clamp device of claim 6, wherein, The base assembly also includes a stepped shaft and bearings; The stepped shaft passes through the first shaft hole, the second shaft hole, and the bearing along the third direction. The bearing is received in the first shaft hole. The stepped shaft has a first shaft portion and a second shaft portion. The first shaft portion is rotatably engaged with the bearing, and the second shaft portion is rotatably engaged with the second shaft hole.

8. The paddle clamp device of claim 7, wherein, The stepped shaft includes a first shaft body, a second shaft body, and a third locking member. The first shaft body and the second shaft body are connected and fixed by the third locking member. The first shaft portion is disposed on the first shaft body, one second shaft portion is disposed on the first shaft body, and the other second shaft portion is disposed on the second shaft body.

9. The paddle clamp device of claim 6, wherein, The base body is also provided with positioning holes and snap-fit ​​holes. The positioning holes and snap-fit ​​holes are both located at the bottom of the mounting groove, and the two snap-fit ​​holes are arranged on both sides of the positioning holes along the first direction. The vibration damping pad is provided with a damping part, a first positioning part and a second positioning part. The first positioning part is inserted and fixed to the positioning hole, and the second positioning part is snapped and fixed to the snap-fit ​​hole. The damping part is disposed between the base body and the seat body.

10. A drone, characterized in that, Includes the propeller clamping device as described in any one of claims 1-9, a fourth locking member, a motor, and a drone body, wherein the propeller clamping device is mounted to the motor via the fourth locking member, and the motor is mounted to the drone body.

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