Foldable arm structure of a drone

Abstract

The utility model discloses a kind of foldable machine arm structures of unmanned plane, belong to unmanned plane technical field, a kind of foldable machine arm structures of unmanned plane, including connecting arm, the folding arm being hingedly connected with the connecting arm and the mount fixedly connected with the connecting arm, the top of the connecting arm is fixedly connected with buckle in the part close to the folding arm, and the top of the buckle is provided with first slope, the part close to the buckle is provided with guide hole in the top of the folding arm, the inside of the guide hole is fixedly connected with guide rod, spring is set on the guide rod, it is slid down by the limiting rod in the inside of limiting hole, make limiting rod slide to the bottom of the limiting hole bending end that limiting seat is opened, to effectively prevent the reverse sliding of card block cooperation guide hole, to ensure the stability of the clamping between card block and buckle, to prevent folding arm excessive vibration, ensure the stability of unmanned plane flight.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a foldable arm structure for a UAV. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices. The term "UAV" is actually a general term for unmanned aerial vehicles, which, from a technical perspective, can be categorized as: unmanned fixed-wing aircraft, unmanned vertical takeoff and landing aircraft, unmanned airships, unmanned helicopters, unmanned multi-rotor aircraft, and unmanned paragliders. Existing UAVs are generally designed with foldable arms for easy carrying.

[0003] Existing folding arm connection structures for drones use torsion springs and clips to connect the folding arms. However, drones are prone to vibration during flight, which can cause the clips connecting the torsion springs to misalign from their slots, leading to arm vibration and affecting flight stability. Therefore, we propose a foldable arm structure for drones to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a foldable arm structure for a drone. It uses a limiting rod located inside the limiting hole to slide downwards, causing the limiting rod to slide to the bottom of the bent end of the limiting hole on the limiting seat. This effectively prevents the locking block from sliding backwards with the guide hole, thereby ensuring the stability of the engagement between the locking block and the buckle, preventing excessive vibration of the folding arm, and ensuring the stability of the drone's flight.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A foldable arm structure for a drone includes a connecting arm, a folding arm hinged to the connecting arm, and a mounting base fixedly connected to the connecting arm. A buckle is fixedly connected to the top of the connecting arm near the folding arm, and a first inclined surface is provided on the top of the buckle.

[0009] A guide hole is provided at the top of the folding arm near the buckle, and a guide rod is fixedly connected to the inside of the guide hole, with a spring sleeved on the guide rod;

[0010] A locking block that engages with the buckle is slidably connected to the inner side of the guide hole, and the locking block is penetrated by the guide rod. The locking end of the locking block is provided with a second inclined surface. A longitudinally arranged straight hole is provided on the locking block;

[0011] Both sides of the guide hole are provided with limiting seats that are fixedly connected to the folding arm, and the limiting seats are provided with limiting holes in an L-shaped structure.

[0012] A limiting rod that penetrates the limiting hole is installed on the inner side of the slotted hole.

[0013] Furthermore, the angle of the first inclined plane is adapted to the angle of the second inclined plane.

[0014] Furthermore, the upper surface of the end of the card block away from the second inclined surface is integrally formed with anti-slip teeth, and multiple anti-slip teeth are evenly spaced.

[0015] Furthermore, a through hole is provided at the part of the guide rod that passes through the block, and the inner diameter of the through hole is adapted to the outer diameter of the guide rod.

[0016] Furthermore, the outer wall of the limiting rod is fitted with an anti-slip rubber sleeve, and the anti-slip rubber sleeve abuts against the inner wall of the slotted hole.

[0017] Furthermore, both ends of the limiting rod are equipped with limiting bosses that fit against the limiting seat.

[0018] Furthermore, the portion where the connecting arm and the mounting base are joined is integrally formed with reinforcing ribs, and multiple reinforcing ribs are provided.

[0019] 3. Beneficial effects

[0020] Compared with existing technologies, the advantages of this utility model are:

[0021] (1) In this solution, the limiting rod located inside the limiting hole slides down, so that the limiting rod slides to the bottom of the bent end of the limiting hole opened on the limiting seat. This can effectively prevent the locking block from sliding in the opposite direction with the guide hole, thereby ensuring the stability of the locking between the locking block and the buckle, thus preventing excessive vibration of the folding arm and ensuring the stability of the UAV flight.

[0022] (2) In this solution, by flipping the folding arm upward, the second inclined surface on the card block is attached to the first inclined surface on the top of the buckle. Under the action of the squeezing force, the card block slides with the guide hole and compresses the spring sleeved on the guide rod. After the card block and the buckle are aligned, the elastic force of the spring is used to make the card block's snap-fit ​​end snap-fit ​​with the buckle, which facilitates the quick merging of the folding arm and the connecting arm. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the connecting arm structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the folding arm structure of this utility model;

[0026] Figure 4 This is an enlarged schematic diagram of part A of the present invention;

[0027] Figure 5 This is a schematic diagram of the card block structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the folding arm of this utility model.

[0029] Explanation of the labels in the diagram:

[0030] 1. Connecting arm; 2. Folding arm; 3. Mounting base; 4. Buckle; 5. First inclined surface; 6. Guide hole; 7. Guide rod; 8. Spring; 9. Locking block; 10. Second inclined surface; 11. Anti-slip teeth; 12. Straight hole; 13. Limiting seat; 14. Limiting hole; 15. Limiting rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] Example:

[0033] Please see Figures 1-6 A foldable arm structure for a drone includes a connecting arm 1, a folding arm 2 hinged to the connecting arm 1, and a mounting base 3 fixedly connected to the connecting arm 1. A buckle 4 is fixedly connected to the top of the connecting arm 1 near the folding arm 2, and a first inclined surface 5 is provided on the top of the buckle 4.

[0034] A guide hole 6 is provided at the top of the folding arm 2 near the buckle 4. A guide rod 7 is fixedly connected to the inside of the guide hole 6, and a spring 8 is sleeved on the guide rod 7.

[0035] The guide hole 6 has a sliding connection to a locking block 9 that engages with the buckle 4, and the locking block 9 is penetrated by the guide rod 7. The locking end of the locking block 9 is provided with a second inclined surface 10. The locking block 9 has a longitudinally arranged straight hole 12.

[0036] Both sides of the guide hole 6 are provided with limiting seats 13 that are fixedly connected to the folding arm 2. The limiting seats 13 are provided with limiting holes 14 in an L-shaped structure.

[0037] A limiting rod 15 that penetrates the limiting hole 14 is installed on the inner side of the straight hole 12;

[0038] It should be noted that, in use, the foldable arm structure of this drone is achieved by installing the connecting arm 1 onto the drone. When the drone needs to take off, the folding arm 2 is flipped upwards. After the second inclined surface 10 on the locking block 9 is aligned with the first inclined surface 5 on the top of the buckle 4, under the action of the squeezing force, the locking block 9 slides in conjunction with the guide hole 6, compressing and deforming the spring 8 sleeved on the guide rod 7. After the locking block 9 aligns with the buckle 4, the elastic force of the spring 8 makes the locking end of the locking block 9 engage with the buckle 4, facilitating the quick merging of the folding arm 2 and the connecting arm 1. The limiting rod 15 located inside the limiting hole 14 slides downwards, causing the limiting rod 15 to slide to the bottom of the bent end of the limiting hole 14 opened on the limiting seat 13. This effectively prevents the locking block 9 from sliding in the opposite direction in conjunction with the guide hole 6, thereby ensuring the stability of the engagement between the locking block 9 and the buckle 4, preventing excessive vibration of the folding arm 2, and ensuring the stability of the drone's flight.

[0039] like Figure 2 , Figure 5 As shown, the angle of the first inclined plane 5 is matched with the angle of the second inclined plane 10;

[0040] It should be noted that after the second inclined surface 10 on the card block 9 is attached to the first inclined surface 5 on the top of the buckle 4, the card block 9 slides with the guide hole 6 under the action of the squeezing force, which is conducive to the movement of the card block 9.

[0041] like Figure 5 As shown, the upper surface of the end of the card block 9 away from the second inclined surface 10 is integrally formed with anti-slip teeth 11, and multiple anti-slip teeth 11 are evenly arranged.

[0042] It should be noted that by setting anti-slip teeth 11, it is easy to drag the locking block 9 to move in the opposite direction, thereby disengaging the locking block 9 from the buckle 4, which facilitates the folding of the folding arm 2.

[0043] like Figure 4 , Figure 5 As shown, a through hole is provided at the part of the guide rod 7 that passes through the locking block 9, and the inner diameter of the through hole is adapted to the outer diameter of the guide rod 7.

[0044] It should be noted that the stability of the locking block 9 during the sliding process in conjunction with the guide rod 7 is guaranteed.

[0045] like Figure 4 ,Figure 5 As shown, the outer wall of the limiting rod 15 is fitted with an anti-slip rubber sleeve, and the anti-slip rubber sleeve abuts against the inner wall of the slot 12. Both ends of the limiting rod 15 are equipped with limiting bosses that fit against the limiting seat 13.

[0046] It should be noted that by setting an anti-slip rubber sleeve, the friction between the limiting rod 15 and the slotted hole 12 can be increased, thereby preventing the limiting rod 15 from loosening. Furthermore, by setting a limiting boss, the limiting rod 15 can be effectively prevented from dislodging from the slotted hole 12.

[0047] like Figure 1 As shown, the part where the connecting arm 1 and the mounting base 3 are combined is integrally formed with reinforcing ribs, and multiple reinforcing ribs are provided.

[0048] It should be noted that this can enhance the strength, rigidity, and torsional resistance of the connecting arm 1, and overcome the distortion and deformation of the product caused by uneven stress due to the difference in wall thickness of the connecting arm 1, thereby increasing the strength of the mating surface.

[0049] In use: By installing the connecting arm 1 on the drone, when the drone needs to take off, the folding arm 2 is flipped upwards. After the second inclined surface 10 on the locking block 9 is attached to the first inclined surface 5 on the top of the buckle 4, under the action of the squeezing force, the locking block 9 slides with the guide hole 6, and the spring 8 sleeved on the guide rod 7 is compressed and deformed. After the locking block 9 and the buckle 4 are aligned, the elastic force of the spring 8 is used to make the locking end of the locking block 9 engage with the buckle 4, which facilitates the quick merging between the folding arm 2 and the connecting arm 1. The limiting rod 15 located inside the limiting hole 14 slides downwards, so that the limiting rod 15 slides to the bottom of the bent end of the limiting hole 14 opened on the limiting seat 13, which can effectively prevent the locking block 9 from sliding in the opposite direction with the guide hole 6, thereby ensuring the stability of the engagement between the locking block 9 and the buckle 4.

[0050] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A foldable arm structure for a drone, comprising a connecting arm (1), a folding arm (2) hingedly connected to the connecting arm (1), and a mounting base (3) fixedly connected to the connecting arm (1), characterized in that: The top of the connecting arm (1) is fixedly connected to a buckle (4) near the folding arm (2), and the top of the buckle (4) is provided with a first inclined surface (5); The top of the folding arm (2) near the buckle (4) has a guide hole (6), and a guide rod (7) is fixedly connected to the inside of the guide hole (6). A spring (8) is sleeved on the guide rod (7). The guide hole (6) is slidably connected to a buckle (4) that engages with the buckle (4), and the buckle (9) is penetrated by the guide rod (7). The buckle (9) has a second inclined surface (10) at the snap-fit ​​end, and a vertically arranged straight hole (12) is provided on the buckle (9). Both sides of the guide hole (6) are provided with limiting seats (13) that are fixedly connected to the folding arm (2), and the limiting seats (13) are provided with limiting holes (14) in an L-shaped structure. A limiting rod (15) that penetrates the limiting hole (14) is installed on the inner side of the straight hole (12).

2. The foldable arm structure of a drone according to claim 1, characterized in that: The angle of the first inclined plane (5) is matched with the angle of the second inclined plane (10).

3. The foldable arm structure of a drone according to claim 1, characterized in that: The upper surface of the end of the card block (9) away from the second inclined surface (10) is integrally formed with anti-slip teeth (11), and multiple anti-slip teeth (11) are equidistantly arranged.

4. The foldable arm structure of a drone according to claim 1, characterized in that: The guide rod (7) has a through hole at the part that passes through the card block (9), and the inner diameter of the through hole is adapted to the outer diameter of the guide rod (7).

5. The foldable arm structure of a drone according to claim 1, characterized in that: The outer wall of the limiting rod (15) is fitted with an anti-slip rubber sleeve, and the anti-slip rubber sleeve abuts against the inner wall of the slot (12).

6. The foldable arm structure of a drone according to claim 1, characterized in that: Both ends of the limiting rod (15) are equipped with limiting bosses that fit against the limiting seat (13).

7. The foldable arm structure of a drone according to claim 1, characterized in that: The connecting arm (1) and the mounting base (3) are integrally formed with reinforcing ribs, and multiple reinforcing ribs are provided.

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