A drone paddle clamp device

Abstract

The application provides a UAV propeller clamp device, which comprises a propeller clamp assembly for fixing two propeller blades, a positioning guide lapped on one side of the two propeller blades away from a motor assembly, and a clasp assembly buckled on the side of the positioning guide away from the propeller blades. The positioning guide comprises a guide part lapped between the two propeller blades, a positioning part extending outward along both sides of the guide part for lapping on the propeller blades, at least two clamping parts at least partially movably embedded in the guide part, and a second spring at least partially embedded in the middle of the guide part. The positioning guide can preliminarily fix the two propeller blades by clamping on the two propeller blades, and then the clasp assembly is buckled on the positioning guide, so that the two clamping parts on the positioning guide pass through the buckling groove, and the clamping part top passes through the part and moves outward from the buckling groove edge shell after being extruded by the second spring, and buckling is completed with the positioning guide top shell, thereby realizing quick buckling.

Description

Technical Field

[0001] This invention relates to the field of drone accessory technology, and in particular to a drone propeller clamp device. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and their own program control devices. They have no cockpit but are equipped with autopilots, program control devices, and other equipment. Ground-based, shipboard, or mother-aircraft remote control stations track, locate, remotely control, telemetry, and transmit digital data to them using radar and other equipment. They can take off like ordinary aircraft under radio remote control or be launched into the air using a booster rocket, or be carried into the air by a mother aircraft for deployment. During recovery, they can land automatically in the same manner as ordinary aircraft, or be recovered remotely using parachutes or nets. They can be reused multiple times. They are widely used for aerial reconnaissance, surveillance, communication, anti-submarine warfare, and electronic jamming.

[0003] As a crucial component of a drone, the propeller clip is responsible for securing the propeller, ensuring its stable and efficient operation during flight. A drone propeller clip typically consists of multiple parts, which can be assembled using screws. When installing the propeller clip, first ensure all parts are intact and assemble them in the correct order. This assembly sequence includes sequentially attaching the propeller blades to the motor output end, then placing the assembled propeller clip onto the drone's motor, ensuring the clip is aligned with the motor shaft. Finally, secure the propeller clip to the motor using screws, ensuring a firm and reliable fit.

[0004] As described above, most current drone propeller clip installation methods use traditional screws or locking screws, combined with conventional nuts or fastening nuts and washers. Conventional screw installation is prone to loosening and detachment, resulting in the loss of parts. While locking screws can ensure the stability of the propeller blades after installation, their structural locking characteristics make subsequent disassembly more difficult and inconvenient, thus reducing their practicality. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a drone propeller clamp device to solve the problems in the prior art, where the screw-on installation method of drone propeller clamps cannot guarantee the stability of the installation structure and is inconvenient for subsequent disassembly of the propeller clamps, resulting in poor practicality.

[0006] According to an embodiment of the present invention, a drone propeller clamping device is used to connect a motor assembly and fix propeller blades on both sides of the motor assembly. The drone propeller clamping device includes a propeller clamping assembly for fixing the two propeller blades.

[0007] The propeller clamp assembly includes a positioning guide that overlaps the two propeller blades on the side away from the motor assembly, and a clamping assembly that fastens to the positioning guide on the side away from the propeller blades.

[0008] The positioning guide includes a guide portion overlapping between the two blades, a positioning portion extending outward along both sides of the guide portion for overlapping the blades, at least two clamping members at least partially movably embedded in the guide portion, and a second spring at least partially embedded in the middle of the guide portion.

[0009] The clamping assembly includes an upper clamping plate that contacts the side of the positioning guide away from the blade, and side clamping plates that extend along both sides of the upper clamping plate toward the positioning guide. The upper clamping plate has clamping grooves on both sides for accommodating at least part of the clamping member that passes through.

[0010] Specifically, by aligning the fastening groove with at least a portion of the clamping members, the clamping assembly is pressed down so that at least a portion of the clamping members pass through the fastening groove, thereby completing the fastening of the positioning guide member with the clamping assembly.

[0011] Furthermore, the motor assembly includes a motor, a blade mounting portion disposed on the top of the motor for supporting the blade, at least two gaskets disposed on the blade near the blade mounting portion, and a ball screw penetrating the blade near the blade mounting portion and used to connect the motor.

[0012] Furthermore, the positioning part is provided with a gasket groove for accommodating the gasket on the side near the blade.

[0013] Furthermore, the positioning part has a receiving hole at its center for accommodating the retaining clip, and the receiving hole is sequentially connected to the through hole on the blade where the pad is placed to the through hole near the motor where the pad is placed.

[0014] Furthermore, the clip assembly also includes a positioning bolt extending from the middle of the upper clip plate toward the positioning guide, the positioning bolt passing through the center of the guide portion along the center of the second spring, and a plurality of weight-reducing grooves being provided on the side clip plate.

[0015] Furthermore, the clamping member includes at least two clamping buckles that are flipped and embedded in the guide portion, and a reset driving member that is slidably embedded in the guide portion for pushing the clamping buckles to flip, wherein the clamping buckles pass through the fastening groove.

[0016] Furthermore, the clamping buckle includes a fixing part that abuts against the reset drive member, a movable shaft extending outward along both sides of the bottom of the fixing part for movably connecting with the guide part, a fastening part extending outward along the side of the fixing part away from the movable shaft, and a first spring penetrating the bottom of the fixing part.

[0017] Furthermore, the fastening groove is rectangular in shape and is used to accommodate the side of the fixing part where the fastening part is provided.

[0018] Furthermore, each of the four corners of the fastening groove is provided with a locking groove for accommodating at least a portion of the fastening part.

[0019] Compared with existing technologies, this invention proposes a drone propeller clamping device. Using a positioning guide, the two propeller blades are initially fixed above the guide using bolts. Then, a clamping assembly is fastened to the positioning guide, allowing two clamping members on the guide to extend through the fastening groove. A second spring compresses the top of the clamping members, causing them to move towards the edge of the fastening groove and engage with the top shell of the positioning guide. This completes the quick installation of the clamping assembly and the positioning guide. Disassembly is also simple: just press the two clamping members together to detach the top of the clamping members from the top shell of the positioning guide, then lift the clamping assembly. The operation is simple and quick. Furthermore, the installation and disassembly of the clamping assembly and the positioning guide do not require bolts or tools, improving the practicality of this invention and solving the problems of current drone propeller clamps using screw connections, which cannot guarantee the stability of the installation structure and are inconvenient for subsequent disassembly, resulting in poor usability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the UAV propeller clamp device, motor assembly and propeller blades in the first embodiment of the present invention;

[0021] Figure 2 This is a partial structural diagram of the drone propeller clamp device, motor assembly, and propeller blades in the first embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the propeller clamp assembly in the UAV propeller clamp device according to the first embodiment of the present invention;

[0023] Figure 4 This is a partial bottom view of the propeller clamp assembly in the UAV propeller clamp device according to the first embodiment of the present invention.

[0024] Figure 5 This is a partial structural diagram of the positioning guide component in the UAV propeller clamp device according to the first embodiment of the present invention;

[0025] Figure 6This is a partial structural diagram of the clamping assembly in the UAV propeller clamping device according to the first embodiment of the present invention;

[0026] Figure 7 This is a partial bottom view of the clamping assembly in the UAV propeller clamping device according to the first embodiment of the present invention.

[0027] Figure 8 This is a schematic diagram of the clamping buckle in the drone propeller clamping device in the first embodiment of the present invention.

[0028] Explanation of key component symbols:

[0029]

[0030] The following detailed description of the embodiments will further illustrate the present invention in conjunction with the above-described accompanying drawings. Detailed Implementation

[0031] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Example 1

[0034] Please see Figures 1 to 8The image shows a drone propeller clamping device according to the first embodiment of the present invention, used to connect the motor assembly 1 and fix the propeller blades 2 on both sides of the motor assembly 1. The drone propeller clamping device includes a propeller clamping assembly 3 for fixing the two propeller blades 2. The propeller clamping assembly 3 includes a positioning guide 31 that overlaps the side of the two propeller blades 2 away from the motor assembly 1, and a clamping assembly 32 that fastens to the side of the positioning guide 31 away from the propeller blades 2. The positioning guide 31 includes a guide portion 311 that overlaps between the two propeller blades 2, a positioning portion 312 that extends outward from both sides of the guide portion 311 for overlapping the propeller blades 2, and at least partially movably embedded in the guide portion. The guide portion 311 has at least two clamping members and a second spring 315 that is at least partially embedded in the middle of the guide portion 311. The clamping assembly 32 includes an upper clamping plate 321 that contacts the side of the positioning guide 31 away from the blade 2, and side clamping plates 322 that extend along both sides of the upper clamping plate 321 toward the positioning guide 31. The upper clamping plate 321 has fastening grooves 323 on both sides for accommodating at least some of the clamping members. By aligning the fastening grooves 323 with at least some of the clamping members, the clamping assembly 32 is pressed down so that at least some of the clamping members pass through the fastening grooves 323, thus completing the fastening between the positioning guide 31 and the clamping assembly 32.

[0035] Furthermore, the motor assembly 1 includes a motor 11, a blade mounting portion 12 disposed on the top of the motor 11 for supporting the blade 2, at least two washers 13 disposed on the blade 2 near the blade mounting portion 12, and a ball screw 14 penetrating the side of the blade 2 near the blade mounting portion 12 and used to connect the motor 11. It should be noted that the ball screw 14 is a fastener with a special structure, inlaid with small balls or glass beads on its head. This design can increase the anti-slip performance of the screw. The glass ball screw 14 is suitable for use in applications where high strength and high reliability are required for critical components. The positioning part 312 has a gasket groove 316 for accommodating the gasket 13 embedded near the blade 2. A receiving hole for accommodating the bolt is opened at the center of the positioning part 312, and this receiving hole sequentially connects to the through hole on the blade 2 where the gasket 13 is placed to the through hole on the side near the motor 11 where the gasket 13 is placed. In some optional embodiments, the bolt can be a conventional screw or other pin structure equipped with a snap-fit, as is understood in the art. During installation and fixing, the bolt can sequentially pass through the receiving hole at the center of the positioning part 312, through the blade 2 and the gaskets 13 on both sides, to the blade mounting part 12 on the motor 11 to complete the connection. The clamping assembly 32 also includes a positioning bolt 326 extending from the middle of the upper clamping plate 321 towards the positioning guide 31. For example... Figure 2As shown, a through hole adapted to the positioning bolt 326 is provided at the center of the motor 11. In some optional embodiments, a snap-fit ​​structure adapted to the positioning bolt 326 can also be provided in the through hole to facilitate the initial positioning purpose of the positioning guide 31 when it is connected to the clamping assembly 32. The positioning bolt 326 passes through the center of the second spring 315 into the center of the guide portion 311. Multiple weight-reducing grooves 325 are provided on the side buckle plate 322. By providing weight-reducing grooves 325, the burden on the motor 11 caused by the counterweight is reduced without affecting the use of the paddle clamp assembly 3, thereby improving the performance of the motor 11 to a certain extent. The clamping component includes at least two clamping buckles 314 that are flipped and embedded in the guide portion 311, and a slidably embedded in the guide portion 311. The 11 includes a reset drive 313 for pushing the clamping buckle 314 to flip. The clamping buckle 314 passes through the fastening groove 323. The clamping buckle 314 includes a fixing part 3141 that abuts against the reset drive 313, a movable shaft 3142 that extends outward along both sides of the bottom of the fixing part 3141 for movably connecting with the guide part 311, a fastening part 3144 that extends outward along the side of the fixing part 3141 away from the movable shaft 3142, and a first spring 3143 that passes through the bottom of the fixing part 3141. The fastening groove 323 is rectangular in shape and is used to accommodate the side of the fixing part 3141 where the fastening part 3144 is provided. Locking grooves 324 are provided at the four corners of the fastening groove 323 to accommodate at least part of the fastening part 3144.

[0036] In practice, the operator first places the blade 2, which is compatible with the motor 11 model, on the blade mounting part 12, ensuring that the through holes on the blade 2 correspond to and are connected with the through holes on both sides of the blade mounting part 12. Simultaneously, when placing the blade 2, the operator can also install shims 13 on both sides of the blade 2. These shims are located on the side of the blade 2 closest to the blade mounting part 12 and on the side of the blade 2 closest to the blade clamp assembly 3. The shims 13 can be made of flexible rubber, PU, ​​or PC material to give them good plasticity and stability, thereby improving the firmness of the blade 2 mounting location. Next, the operator inserts the glass ball screw 14 into the through hole near the shim 13 into the blade mounting part 12, completing the connection between the blade 2 and the motor. After the initial installation between the two blades 2, the operator can attach the positioning guide 31 to the top of the two blades 2, and at the same time, make the positioning parts 312 on both sides of the positioning guide 31 correspond to the positions of the pads 13 on the blades 2, and make the pads 13 located in the pad grooves 316 opened at the bottom of the positioning parts 312. Further, adjust the position of the positioning guide 31 so that the receiving hole opened at the center of the positioning part 312 is aligned and connected with the through holes on the blades 2 and the pads 13. Then, the operator can insert the bolts into the receiving holes to connect and fix the positioning guide 31, the pads 13, the blades 2 and the blade mounting parts 12 in sequence. Since the blades 2 are initially supported by the glass ball screws 14, the blades 2 will not be affected and the angle will not be affected during the insertion of the bolts.

[0037] Next, the clamping assembly 32 and the positioning guide 31 are installed. Specifically, the operator aligns the clamping assembly 32 with the center of the guide portion 311 on the positioning guide 31 using the positioning pin 326 provided on the clamping assembly 32. It should be noted that a positioning hole for accommodating the positioning pin 326 is provided in the center of the guide portion 311. After ensuring that the center of the positioning guide 31 corresponds with the center of the clamping assembly 32, the position of the clamping assembly 32 is adjusted so that the side buckle plates 322 are successively attached to both sides of the guide portion 311 and then the clamping assembly 32 is pressed down. During the pressing process, the operator needs to press the reset drive members 313 on both sides towards the clamping buckle 314 along the reset drive member 313 to push the two opposing clamps. The clamp 314 is flipped in the opposite direction. It should be noted that, due to the influence of the first spring 3143, the fixing part 3141 on the clamp 314 is not perpendicular to the guide part 311 in its normal state. Instead, it is relatively unfolded relative to the two fixing parts 3141 and arranged outwards from the guide part 311. Therefore, when pressing down the clamp assembly 32, the operator needs to press the reset drive members 313 on both sides towards the clamp 314 along the reset drive member 313, so that the two opposing fixing parts 3141 are flipped in the opposite direction around the movable axis 3142 until they are perpendicular to the guide part 311 before lowering the clamp assembly 32. During the pressing process, the side buckle plate 322 restricts the sides of the guide part 311, so that... The latching groove 323 corresponds to the clamping buckle 314 and is inserted along its top. After insertion, the operator can release the restriction on the reset drive member 313 and continuously apply downward pressure to the clamping assembly 32, so that the side buckle plate 322 passes through the guide part 311 to the blade 2. At the same time, after the upper buckle plate 321 is attached to the top of the positioning guide member 31, the clamping assembly 32 is pressed down into place. Meanwhile, the latching part 3144 located at the top of the fixed part 3143 passes through the latching groove 323. During this process, the clamping buckle 3144, which is freed from the restriction of the clamping assembly 32, is affected by the first spring 3143, causing the two oppositely arranged fixed parts 3141 to rotate in opposite directions with the movable shaft 3142 as the center. During this process, the latching part 3144 will tilt. Furthermore, part of it is inserted into the locking groove 324 to form a locked state, which improves the firmness of the connection between the positioning guide 31 and the clamping assembly 32, and finally completes the installation of the propeller clamp assembly 3. In addition, when disassembling the propeller clamp assembly 3 after the UAV is used, the operator only needs to press the reset drive 313 on both sides towards the clamping buckle 314 along the reset drive 313 so that the clamping buckle 314 is perpendicular to the guide part 311, and then directly lift the clamping assembly 32 to complete the separation of the positioning guide 31 and the clamping assembly 32. The operation is simple and quick. At the same time, during the disassembly and assembly of the clamping assembly 32 and the positioning guide 31, there is no need to fix it with bolts or use tools to assist in the disassembly and assembly, which improves the practicality of the present invention to a certain extent.

[0038] Furthermore, multiple weight-reducing grooves 325 are provided on both the positioning guide 31 and the clamping assembly 32, and the weight-reducing grooves 325 are symmetrically arranged to ensure the overall stability of the propeller clamp assembly 3, avoid any impact on the output of the propeller blade 2, and achieve a lightweight design for the propeller clamp assembly 3, maximizing the output performance of the motor assembly 1. In addition, a second spring 315 is provided between the positioning guide 31 and the clamping assembly 32. The second spring 315 generates relative tension between the positioning guide 31 and the clamping assembly 32. After the clamping buckle 314 and the fastening groove 323 are fastened, the relative tension generated by the second spring 315 can further improve the stable fastening between the clamping buckle 314 and the fastening groove 323, while ensuring the structural stability of the propeller clamp assembly 3 during use.

[0039] In summary, the UAV propeller clamping device in the above embodiments of the present invention can initially fix the two propeller blades 2 above the two blades 2 by means of a bolt through the positioning guide 31. Then, the clamping assembly 32 is fastened above the positioning guide 31, so that the two clamping members on the positioning guide 31 protrude along the fastening groove 323. The second spring 315 compresses the top protruding part of the clamping member, causing it to move towards the edge of the outer shell of the fastening groove 323 after it protrudes, and completes the fastening with the top shell of the positioning guide 31. Finally, the clamping assembly 32 and the positioning guide 31 are connected. The device allows for quick installation, and disassembly is also simple: just press the two clamping parts together to disengage the top of the clamping parts from the top outer shell of the positioning guide 31, and then lift the clamping assembly 32. The operation is simple and quick. Furthermore, the clamping assembly 32 and the positioning guide 31 can be installed and disassembled without the need for bolts or tools, which improves the practicality of the invention to a certain extent. This solves the problem that the current screw-connected installation method for UAV propeller clamps cannot guarantee the stability of the installation structure and is inconvenient for subsequent disassembly of the propeller clamps, resulting in poor practicality.

[0040] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A drone propeller clamping device for connecting a motor assembly and fixing propeller blades on both sides of the motor assembly, characterized in that, The UAV propeller clamp device includes a propeller clamp assembly for fixing the two propeller blades; The propeller clamp assembly includes a positioning guide that overlaps the two propeller blades on the side away from the motor assembly, and a clamping assembly that fastens to the positioning guide on the side away from the propeller blades. The positioning guide includes a guide portion overlapping between the two blades, a positioning portion extending outward along both sides of the guide portion for overlapping the blades, at least two clamping members at least partially movably embedded in the guide portion, and a second spring at least partially embedded in the middle of the guide portion. The clamping assembly includes an upper clamping plate that contacts the side of the positioning guide away from the blade, and side clamping plates that extend along both sides of the upper clamping plate toward the positioning guide. The upper clamping plate has clamping grooves on both sides for accommodating at least part of the clamping member that passes through. Specifically, by aligning the fastening groove with at least a portion of the clamping members, the clamping assembly is pressed down so that at least a portion of the clamping members pass through the fastening groove, thereby completing the fastening of the positioning guide member with the clamping assembly.

2. The UAV propeller clamping device according to claim 1, characterized in that, The motor assembly includes a motor, a blade mounting portion disposed on the top of the motor for supporting the blade, at least two gaskets disposed on the blade near the blade mounting portion, and a ball screw penetrating the blade near the blade mounting portion for connecting the motor.

3. The UAV propeller clamping device according to claim 2, characterized in that, The positioning part is provided with a gasket groove for accommodating the gasket on the side near the blade.

4. The UAV propeller clamping device according to claim 3, characterized in that, The positioning part has a receiving hole at its center for accommodating the retaining clip, and the receiving hole is sequentially connected to the through hole on the blade where the pad is placed to the through hole on the side near the motor where the pad is placed.

5. The UAV propeller clamping device according to claim 1, characterized in that, The clamping assembly also includes a positioning bolt extending from the middle of the upper buckle plate toward the positioning guide. The positioning bolt passes through the center of the guide part along the center of the second spring, and multiple weight-reducing grooves are provided on the side buckle plate.

6. The UAV propeller clamping device according to claim 5, characterized in that, The clamping member includes at least two clamping buckles that are flipped and embedded in the guide portion, and a reset drive member that is slidably embedded in the guide portion for pushing the clamping buckles to flip, wherein the clamping buckles pass through the fastening groove.

7. The UAV propeller clamping device according to claim 6, characterized in that, The clamping buckle includes a fixing part that abuts against the reset drive member, a movable shaft extending outward along both sides of the bottom of the fixing part for movably connecting with the guide part, a fastening part extending outward along the side of the fixing part away from the movable shaft, and a first spring penetrating the bottom of the fixing part.

8. The UAV propeller clamping device according to claim 7, characterized in that, The fastening groove is rectangular in shape and is used to accommodate the side of the fastening part on the fixing part.

9. The UAV propeller clamping device according to claim 8, characterized in that, Each of the four corners of the fastening groove is provided with a locking groove for accommodating at least a portion of the fastening part.

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