A foldable rotor support for a drone

Abstract

The utility model relates to rotor support technical field especially unmanned aerial vehicle foldable rotor support, the utility model discloses a shell, support and rotor, four end angles of shell all are fixed with support, the inboard of support all rotatoryly connects with rotor, and the assembly between support and rotor has folding mechanism, and folding mechanism is used to fold and store to rotor, and folding mechanism includes locking lever, guide rail cavity, row dynamic board, abutting spring, limit head and annular guide strip. The utility model discloses the structural design of folding mechanism makes this device to fold and store to rotor conveniently, can according to the flight attitude requirement of executive flight simultaneously to the quantitative adjustment of the unfolding angle of rotor, speeds up work efficiency, improves the flexibility of this device, and through the structural design of end point limiting mechanism, this device can limit the limit rotary angle of rotor, can adjust rotor to be in the state of being in the same straight line with support simultaneously, is favorable to use.

Description

Technical Field

[0001] This utility model relates to the field of rotor support technology, and in particular to a foldable rotor support for unmanned aerial vehicles. Background Technology

[0002] Unmanned aerial vehicles (UAVs), short for unmanned aerial vehicles, are aircraft that do not require a human pilot and are controlled via radio remote control equipment and an internal program control system. These aircraft lack a traditional cockpit but are equipped with key equipment such as autopilots and program control devices. Rotary-wing UAVs, as an important branch of UAVs, derive their flight power primarily from the rotation of propellers on their rotors. Given the relatively large size and lightweight structure of their rotors, these UAVs typically employ a foldable design for ease of carrying and storage.

[0003] For example, a foldable rotor bracket for a drone with the publication (announcement) number CN206766342U includes a lower support plate, a middle support body installed at the upper middle part of the lower support plate, an upper support plate installed at the upper end of the middle support body, positioning bolts at the four corners of the upper support plate, weight reduction through holes on the surfaces of both the lower and upper support plates, a landing support rod installed at the lower end of the lower support plate, a buffer suction cup installed at the end of the landing support rod, connecting shafts installed at the four corners of the lower support plate, a damping bearing installed in the middle of the connecting shaft, a rotor installed on the outside of the damping bearing, and a positioning hole at the tail end of the rotor.

[0004] In summary, the existing technology has the following technical problems: Although the existing technology can fold the rotor during use, it is cumbersome to tighten or loosen the positioning bolts with tools during the actual folding and unfolding process. In addition, after repeated use, the positioning bolts may strip due to wear. Therefore, we propose a foldable rotor bracket for UAVs. Utility Model Content

[0005] The purpose of this invention is to provide a foldable rotor support for unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A foldable rotor support for a drone includes a housing, a support frame, and a rotor. The housing is fixed to the four corners of each support frame, and the rotor is rotatably connected to the inner side of each support frame. A folding mechanism is assembled between the support frame and the rotor, and the folding mechanism is used to fold and store the rotor.

[0008] Preferably, the folding mechanism includes a locking rod, a guide rail cavity, a discharging plate, a clamping spring, a limiting head, and an annular guide strip. The locking rod is slidably connected to the bottom of the rotor. A guide rail cavity is formed on the inner side of the rotor at a position corresponding to the locking rod. A discharging plate is slidably connected to the inner side of the guide rail cavity. The discharging plate is fixed to the locking rod. A clamping spring is fixed to the bottom of the discharging plate. The clamping spring is slidably connected to the outer side of the locking rod. The bottom of the clamping spring is fixed to the inner side of the guide rail cavity. A limiting head is fixed to the top of the discharging plate. The limiting head is slidably connected to the guide rail cavity. An annular guide strip is fixed to the outer side of the bracket. The limiting head and the annular guide strip are assembled and connected.

[0009] Preferably, the inner side of the annular guide strip is provided with a plurality of angle alignment holes, and the angle alignment holes are all slidably connected to the limiting head.

[0010] Preferably, the folding mechanism further includes a pinch head and an anti-collision U-shaped frame. The pinch head is fixed to the bottom of the locking rod, and the anti-collision U-shaped frame is fixed to the bottom of the rotor at a position corresponding to the pinch head. The pinch head and the inner side of the anti-collision U-shaped frame are fitted with a clearance.

[0011] Preferably, an end-point limiting mechanism is also assembled between the bracket and the rotor. The end-point limiting mechanism includes a limiting protrusion, a limiting end angle, and a positioning protrusion. The limiting protrusion is integrally fixed on one side of the bracket, and the limiting end angle is integrally fixed on the other side of the bracket. A positioning protrusion is fixed on one side of the rotor at a position corresponding to the limiting end angle.

[0012] Preferably, the bottom of the housing is provided with multiple heat dissipation vents.

[0013] When the rotor needs to be folded, pull the pinch head. The pinch head pulls the locking rod to move. Because the paving plate is fixed to the locking rod, the paving plate is slidably connected to the guide rail cavity, and the paving plate is fixed to the limit head, the paving plate can drive the limit head to move downwards and compress the anti-spring until the limit head separates from the corresponding angle alignment hole. Then rotate the rotor so that the rotor rotates along the inner side of the bracket until the rotor rotates to the corresponding angle alignment hole. At this time, release the pinch head. The elastic force generated by the anti-spring pushes the paving plate and the limit head back to their original positions until the limit head connects with the angle alignment hole, thus completing the folding of the rotor.

[0014] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0015] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0016] 1. Through the structural design of the folding mechanism, this utility model makes it easy to quickly fold and store the rotor. At the same time, it can quantitatively adjust the rotor's unfolding angle according to the flight attitude requirements, thereby speeding up work efficiency and improving the flexibility of the device.

[0017] 2. Through the structural design of the end-point limiting mechanism, this utility model enables the device to limit the extreme rotation angle of the rotor, and at the same time adjust the rotor to be in a straight line with the support, which is beneficial to use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the housing and the bracket of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the rotor of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the angle alignment hole and the bracket of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the rotor and the anti-collision U-shaped frame of this utility model;

[0024] Figure 6 This is a schematic diagram of the connection structure between the bracket and the rotor of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the diagram: 1. Housing; 2. Bracket; 3. Rotor; 4. Locking rod; 5. Pinch head; 6. Guide rail cavity; 7. Displacement plate; 8. Anti-locking spring; 9. Limiting head; 10. Annular guide bar; 11. Angle alignment hole; 12. Anti-collision U-shaped frame; 13. Limiting protrusion; 14. Limiting end corner; 15. Positioning protrusion; 16. Heat dissipation vent. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] Example 1

[0029] Reference Figure 1-5 A foldable rotor support for a drone includes a housing 1, a support 2, and a rotor 3. The support 2 is fixed to each of the four corners of the housing 1. The rotor 3 is rotatably connected to the inner side of the support 2. A folding mechanism is assembled between the support 2 and the rotor 3. The folding mechanism is used to fold and store the rotor 3.

[0030] The folding mechanism includes a locking rod 4, a guide rail cavity 6, a release plate 7, a clamping spring 8, a limiting head 9, and an annular guide strip 10. The bottom of the rotor 3 is slidably connected to the locking rod 4. The guide rail cavity 6 is opened on the inner side of the rotor 3 at a position corresponding to the locking rod 4. The release plate 7 is slidably connected to the inner side of the guide rail cavity 6. The release plate 7 is fixed to the locking rod 4. The bottom of the release plate 7 is fixed to the clamping spring 8. The clamping spring 8 is slidably connected to the outer side of the locking rod 4. The bottom of the clamping spring 8 is fixed to the inner side of the guide rail cavity 6. The top of the release plate 7 is fixed to the limiting head 9. The limiting head 9 is slidably connected to the guide rail cavity 6. The outer side of the bracket 2 is fixed to the annular guide strip 10. The limiting head 9 and the annular guide strip 10 are assembled and connected. Multiple angle alignment holes 11 are evenly distributed on the inner side of the annular guide strip 10. The angle alignment holes 11 are all slidably connected to the limiting head 9. The setting of the angle alignment holes 11 facilitates the quick positioning of the rotor 3, avoiding the cumbersome method of fixing with traditional screws.

[0031] The folding mechanism also includes a pinch head 5 and an anti-collision U-shaped frame 12. The pinch head 5 is fixed to the bottom of the locking rod 4, and the anti-collision U-shaped frame 12 is fixed to the bottom of the rotor 3 at a position corresponding to the pinch head 5. The pinch head 5 and the inner side of the anti-collision U-shaped frame 12 are fitted with a gap. The anti-collision U-shaped frame 12 is set to prevent the pinch head 5 from being impacted or torn by external forces, thus avoiding the locking rod 4 from being pulled in an uncertain manner.

[0032] Multiple heat dissipation vents 16 are evenly distributed on the bottom of the housing 1. The heat dissipation vents 16 facilitate the heat dissipation of electrical components inside the housing 1.

[0033] Example 2

[0034] Further optimizations to Example 1, specifically, such as... Figure 4 and Figure 6As shown, an end-point limiting mechanism is also installed between the bracket 2 and the rotor 3. The end-point limiting mechanism includes a limiting protrusion 13, a limiting end angle 14, and a positioning protrusion 15. The limiting protrusion 13 is integrally fixed on one side of the bracket 2, and the limiting end angle 14 is integrally fixed on the other side of the bracket 2. The positioning protrusion 15 is fixed on one side of the rotor 3 at a position corresponding to the limiting end angle 14. When the rotor 3 is rotated so that the positioning protrusion 15 abuts against the limiting end angle 14, the central axis of the rotor 3 and the bracket 2 are on the same straight line, and the limiting head 9 corresponds to one of the angle alignment holes 11, which facilitates the attitude calibration of the rotor 3.

[0035] In summary:

[0036] This utility model addresses the technical problem that, while existing technologies can fold the rotor during use, the actual folding and unfolding process requires tightening or loosening the positioning bolts with tools, which is cumbersome. Furthermore, after repeated use, wear can cause the positioning bolts to strip. The present invention employs the technical solutions described in the above embodiments. The implementation process of the above technical solutions is as follows:

[0037] When the rotor 3 needs to be folded, pull the pinch head 5. The pinch head 5 pulls the locking rod 4 to move. Because the paving plate 7 is fixed to the locking rod 4, the paving plate 7 is slidably connected to the guide rail cavity 6, and the paving plate 7 is fixed to the limiting head 9, the paving plate 7 can drive the limiting head 9 to move downward and squeeze the pressing spring 8 to retract until the limiting head 9 separates from the corresponding angle alignment hole 11. Then rotate the rotor 3 so that the rotor 3 rotates along the inner side of the bracket 2, so that the rotor 3 rotates to the corresponding angle alignment hole 11. At this time, release the pinch head 5. The elastic force generated by the pressing spring 8 pushes the paving plate 7 and the limiting head 9 to reset until the limiting head 9 connects with the angle alignment hole 11, and the folding of the rotor 3 is completed.

[0038] With the above-mentioned settings, this application will certainly solve the above-mentioned technical problems, and at the same time achieve the following technical effects:

[0039] 1. Through the structural design of the folding mechanism, this utility model makes it easy to quickly fold and store the rotor 3. At the same time, it can quantitatively adjust the unfolding angle of the rotor 3 according to the flight attitude requirements, thereby speeding up the work efficiency and improving the flexibility of the device.

[0040] 2. Through the structural design of the endpoint limiting mechanism, this utility model enables the device to limit the extreme rotation angle of the rotor 3, and at the same time, it can adjust the rotor 3 to be in the same straight line as the support 2, which is beneficial to use.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A foldable rotor support for a drone, characterized in that, The device includes a housing (1), a bracket (2), and a rotor (3). The four corners of the housing (1) are fixed with brackets (2). The rotor (3) is rotatably connected to the inner side of each bracket (2). A folding mechanism is assembled between the bracket (2) and the rotor (3). The folding mechanism is used to fold and store the rotor (3).

2. The foldable rotor support for a drone according to claim 1, characterized in that, The folding mechanism includes a locking rod (4), a guide rail cavity (6), a folding plate (7), a retaining spring (8), a limiting head (9), and an annular guide strip (10). The bottom of the rotor (3) is slidably connected to the locking rod (4). A guide rail cavity (6) is provided on the inner side of the rotor (3) at a position corresponding to the locking rod (4). A folding plate (7) is slidably connected to the inner side of the guide rail cavity (6). The folding plate (7) is fixed to the locking rod (4). A retaining spring (8) is fixed at the bottom of the moving plate (7). The retaining spring (8) is slidably connected to the outside of the locking rod (4). The bottom of the retaining spring (8) is fixed to the inside of the guide rail cavity (6). A limiting head (9) is fixed at the top of the moving plate (7). The limiting head (9) is slidably connected to the guide rail cavity (6). An annular guide strip (10) is fixed on the outside of the bracket (2). The limiting head (9) is assembled and connected to the annular guide strip (10).

3. The foldable rotor support for a drone according to claim 2, characterized in that, The inner side of the annular guide strip (10) is provided with a plurality of angle alignment holes (11), and the angle alignment holes (11) are all slidably connected to the limiting head (9).

4. The foldable rotor support for a drone according to claim 2, characterized in that, The folding mechanism also includes a pinch head (5) and an anti-collision U-shaped frame (12). The bottom of the locking rod (4) is fixed with a pinch head (5), and the bottom of the rotor (3) and the position corresponding to the pinch head (5) are fixed with an anti-collision U-shaped frame (12). The pinch head (5) and the inner side of the anti-collision U-shaped frame (12) are fitted with a clearance.

5. A foldable rotor support for a drone according to claim 1, characterized in that, An end-point limiting mechanism is also assembled between the bracket (2) and the rotor (3). The end-point limiting mechanism includes a limiting protrusion (13), a limiting end angle (14), and a positioning protrusion (15). The limiting protrusion (13) is integrally fixed on one side of the bracket (2), and the limiting end angle (14) is integrally fixed on the other side of the bracket (2). The positioning protrusion (15) is fixed on one side of the rotor (3) at a position corresponding to the limiting end angle (14).

6. A foldable rotor support for a drone according to claim 1, characterized in that, The bottom of the casing (1) is provided with multiple heat dissipation vents (16).

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