A quick-release propeller mount structure based on a drone and the drone

Abstract

This invention provides a quick-release propeller mount structure for unmanned aerial vehicles (UAVs), including a mounting base and a propeller mount. A fixing beam extending from the side of the propeller mount body can be interference-fitted into a claw on the mounting base. In use, the propeller mount body is placed between the claws, and the propeller mount is rotated to engage the fixing beam in the engagement space between the claw and the upper surface of the mounting base. The protruding surface of the propeller mount can compress the propeller mount, resulting in an interference fit between the fixing beam and the claw. Furthermore, the locking mechanism between the fixing beam and the top cover of the claw can be locked to ensure reliable fixation. This quick-release propeller mount structure is convenient to use, provides interference fit, and is further reinforced by the locking mechanism of the fixing beam and the claw, resulting in high reliability. It can effectively improve the reliability of the quick-release connection between the UAV propeller blade and the motor.

Description

Technical Field

[0001] This utility model relates to the field of aircraft technology, and in particular to a quick-release propeller mount structure based on a drone and the drone itself. Background Technology

[0002] To facilitate transportation, the connection between the propeller blades and the motor of drones is generally designed to be detachable. The main fixing methods are bolt fixing and quick-release mechanism fixing. Among them, quick-release mechanism fixing has the characteristics of high efficiency and low error rate, and is the future development trend.

[0003] Due to limitations in machining precision, traditional processes result in an assembly gap of approximately 0.05mm between the propeller blades and the motor. This gap causes vibration and insufficient stability during high-speed rotation. To address this stability issue, existing technologies primarily employ two methods: one is to improve machining precision, controlling the gap to within 0.02mm, but this significantly increases costs; the other is to fill the gap with soft material, transforming the gap assembly into an interference fit. However, soft materials, due to their inherent properties, suffer from low machining precision, easy wear, and susceptibility to high-temperature failure, leading to inconsistent installation feel, poor compatibility, and a risk of drone crashes after repeated use, necessitating periodic replacement of the soft material. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a quick-release propeller mount structure and a drone based on a drone, so as to solve the problems of high cost or insufficient long-term reliability of the quick-release structure from drone propeller to motor in the prior art.

[0005] This utility model provides a quick-release propeller mount structure based on a drone, comprising:

[0006] Mounting base, wherein at least two claws are arranged around the upper surface of the mounting base, and the claws are inverted L-shaped structures;

[0007] The paddle holder includes a main body and a fixed beam extending from the side of the main body. The lower surface of the fixed beam is provided with a boss surface, and the upper surface forms a retaining seat. The size of the retaining seat is the same as the size of the top cover of the claw, so that the retaining seat can engage with the claw.

[0008] The top cover spacing of the claws is greater than or equal to the main body diameter of the propeller seat, the maximum diameter of the propeller seat is greater than the top cover spacing of the claws, and the maximum diameter of the propeller seat is less than or equal to the inner sidewall spacing of the claws.

[0009] Optionally, the alignment edges of the top cover and the main body are arc-shaped and fit together perfectly.

[0010] Optionally, the thickness of the circumferential end of the fixed beam gradually increases from the circumferential end inward.

[0011] Optionally, the bevel angle at the circumferential end of the fixed beam is 25° to 35°.

[0012] Optionally, the fixed beam has a hollow structure.

[0013] Optionally, the card holder has a concave platform structure.

[0014] This utility model also provides a drone, including the above-mentioned drone-based propeller quick-release structure.

[0015] This utility model provides a quick-release propeller mount structure for drones, comprising a mounting base and a propeller mount. A fixing beam extending from the side of the propeller mount body can be interference-fitted into a claw on the mounting base. In use, the propeller mount body is placed between the claws, and the propeller mount is rotated, causing the fixing beam to engage in the locking space between the claw and the upper surface of the mounting base. During rotation, the propeller mount can be compressed by the boss surface, resulting in an interference fit between the fixing beam and the claw. Furthermore, the locking mechanism of the fixing beam and the top cover of the claw can engage and lock, ensuring reliable fixation. This quick-release propeller mount structure is convenient to use, provides interference fit, and is further reinforced by the locking mechanism of the locking mechanism, resulting in high reliability and effectively improving the reliability of the quick-release connection between the drone's propeller blades and motor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the drone-based propeller mount quick-release structure in an embodiment of this utility model.

[0017] Figure 2 This is a schematic diagram of the propeller mount structure based on the quick-release structure of the UAV in the embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the lower surface structure of the propeller mount quick-release structure based on the UAV in an embodiment of the present utility model.

[0019] Figure 4 This is a schematic diagram of the stage structure of the drone-based propeller quick-release structure in use according to an embodiment of the present utility model.

[0020] Figure 5 This is a schematic diagram of the quick-release propeller mount structure based on the UAV in the locked state according to an embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the combination structure of the propeller mount quick-release structure and the propeller blade based on the UAV in the embodiment of this utility model.

[0022] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] 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 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.

[0026] To address the issues of high cost or insufficient long-term reliability in existing quick-release structures for drone propellers to motors, this invention provides a quick-release propeller mount structure for drones. The structure includes a mounting base and a propeller mount. A fixing beam extending from the side of the propeller mount's main body can be interference-fitted into a claw on the mounting base. In use, the propeller mount's main body is placed between the claws, and rotating the propeller mount engages the fixing beam in the engagement space between the claw and the upper surface of the mounting base. The protruding surface of the propeller mount compresses the propeller mount, resulting in an interference fit between the fixing beam and the claw. Furthermore, the locking mechanism between the fixing beam's locking seat and the claw's top cover can be locked in place, ensuring reliable fixation. This design is convenient to use, provides interference fit, and is further reinforced by the locking structure of the fixing beam's locking seat and claw, resulting in high reliability and effectively improving the reliability of the quick-release connection between the drone's propeller and motor.

[0027] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, the quick-release propeller mount structure based on the UAV in this embodiment includes a mounting base 10 and a propeller mount 20. The mounting base 10 is fixed to the motor, and the propeller mount 20 is fixed to the propeller blade 30. Two symmetrically arranged claws 11 are provided on the upper surface of the mounting base 10. The claws 11 have an inverted L-shaped structure to form a locking and limiting space between the claws 11 and the upper surface of the mounting base 10. The propeller mount 20 includes a main body and a fixing beam 21 extending from the side of the main body. The lower surface of the fixing beam 21 has a protruding surface 212, and the upper surface has a concave surface, forming a locking seat 211 through the concave surface. The size of the locking seat 211 is consistent with the size of the top cover of the claws 11, allowing the locking seat 211 to engage with the claws 11. In the case of an interference fit, the locking seat 211 can also be a flat planar structure.

[0028] The top cover spacing of the claws 11 is greater than or equal to the main body diameter of the propeller seat 20, so that the propeller seat 20 can be placed between the two claws 11. The maximum diameter of the propeller seat 20 (including the fixing beam 21) is greater than the top cover spacing of the claws 11, and the maximum diameter of the propeller seat 20 is less than or equal to the inner side wall spacing of the claws 11, so that the fixing beam 21 of the propeller seat 20 can be limited in the engagement and limiting space formed between the claws 11 and the upper surface of the mounting base 10.

[0029] When using, such as Figure 4 and Figure 5 As shown, the propeller holder 20 is placed on the mounting base 10 and positioned between the two jaws 11. Rotating the propeller holder 20 to... Figure 5 In the state where the top cover of the card holder 211 and the card claw 11 are aligned, and the protrusion surface 212 provided on the lower surface of the fixing beam 21 pushes the propeller seat 20 upward, and is pre-tightened in the engagement limiting space, so that the card holder 211 and the card claw 11 engage and lock, and the propeller seat 20 can be stably fixed on the mounting base 10.

[0030] To prevent shaking, in this embodiment, the top cover of the claw 11 and the alignment edge of the main body of the propeller seat 20 are arc-shaped and fit together. The claw 11 can be used to position the propeller seat 20, improving stability. After the propeller seat 20 is positioned, the alignment of the fixing beam 21 and the claw 11 can be further ensured, ensuring that the fixing beam 21 can be effectively engaged in the claw 11.

[0031] Due to the interference fit, in order to facilitate the insertion of the fixing beam 21 into the claw 11, in this embodiment, the thickness of the circumferential end of the fixing beam 21 gradually increases from the circumferential end inward to form a slope, so as to ensure that the fixing beam 21 can be embedded into the claw 11 in the interference fit state.

[0032] The inclined plane angle of the circumferential end of the fixed beam 21 is 25° to 35°. The required thrust is appropriate and easy to operate during the process of pushing the fixed beam 21 into the claw 11.

[0033] To meet the deformation requirements of the fixed beam 21 in the interference fit assembly, in this embodiment, the fixed beam 21 is a hollow structure, which can provide sufficient deformation space for the fixed beam 21.

[0034] In a specific example, the height from the lower surface of the top cover of the chuck 11 to the upper surface of the mounting base 10 is 5.5 mm, with a machining tolerance of 0.04 to 0.07 mm; the height from the top vertex of the top surface of the fixing beam 21 to the top vertex of the boss surface 212 on the bottom surface is 5.6 mm, the height of the boss surface 212 is 0.1 mm, and the machining tolerance is 0.03 to 0.06 mm; the assembly tolerance zone is between -0.12 mm and -0.06 mm, which can ensure that it is an interference fit, and the machining tolerance only needs to reach 0.03 mm. Compared with the precision requirement of 0.02 mm in the prior art, it can effectively reduce the machining difficulty and reduce the cost.

[0035] Based on the tolerance zone of the above example, the interference can be in the range of 0.06 mm to 0.12 mm. Made of aluminum alloy, when the slope angle of the circumferential end of the fixed beam 21 is 30°, the thrust during assembly is approximately 4.56 N to 9.1 N, which is less than the thrust requirement of less than or equal to 20 N in ergonomics, and is easy to disassemble and assemble.

[0036] This utility model also provides a drone, including the above-mentioned drone-based propeller quick-release structure, which achieves quick release between the propeller blade and the motor through interference fit, which can ensure the stability of the connection and effectively reduce the requirements for machining accuracy and reduce costs.

[0037] This utility model provides a quick-release propeller mount structure for drones, comprising a mounting base and a propeller mount. A fixing beam extending from the side of the propeller mount body can be interference-fitted into a claw on the mounting base. In use, the propeller mount body is placed between the claws, and the propeller mount is rotated to engage the fixing beam in the engagement space between the claw and the upper surface of the mounting base. The protruding surface can compress the propeller mount, resulting in an interference fit between the fixing beam and the claw. Furthermore, the locking mechanism between the fixing beam and the top cover of the claw can engage and lock, ensuring reliable fixation. It is convenient to use, provides interference fit, and is further reinforced by the engagement structure of the fixing beam and the claw, resulting in high reliability and effectively improving the reliability of the quick-release connection from the drone propeller to the motor.

[0038] In the description of this specification, the 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 present 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.

[0039] The embodiments described above are merely illustrative of several specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of protection of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the scope of protection of this utility model. Therefore, the scope of protection of this utility model patent should be determined by the appended claims.

Claims

1. A quick-release propeller mount structure based on an unmanned aerial vehicle (UAV), characterized in that, include: Mounting base, wherein at least two claws are arranged around the upper surface of the mounting base, and the claws are inverted L-shaped structures; The paddle holder includes a main body and a fixed beam extending from the side of the main body. The lower surface of the fixed beam is provided with a boss surface, and the upper surface forms a retaining seat. The size of the retaining seat is the same as the size of the top cover of the claw, so that the retaining seat can engage with the claw. The top cover spacing of the claws is greater than or equal to the main body diameter of the propeller seat, the maximum diameter of the propeller seat is greater than the top cover spacing of the claws, and the maximum diameter of the propeller seat is less than or equal to the inner sidewall spacing of the claws.

2. The quick-release propeller mount structure based on a UAV according to claim 1, characterized in that, The top cover and the main body have arc-shaped alignment edges that fit together perfectly.

3. The quick-release propeller mount structure based on a UAV according to claim 1, characterized in that, The thickness of the fixed beam at its circumferential end gradually increases from the circumferential end inward.

4. The quick-release propeller mount structure based on a UAV according to claim 3, characterized in that, The bevel angle at the circumferential end of the fixed beam is 25° to 35°.

5. The quick-release propeller mount structure based on a UAV according to claim 1, characterized in that, The fixed beam has a hollow structure.

6. The quick-release propeller mount structure based on a UAV according to claim 1, characterized in that, The card holder has a concave platform structure.

7. A drone, characterized in that, Includes the drone-based propeller quick-release structure as described in any one of claims 1 to 6.

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