Folding frame of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle folding frame which comprises an unmanned aerial vehicle body, a box body is fixedly connected to the bottom of the unmanned aerial vehicle body, a mounting plate is fixedly connected to the top end of the interior of the box body, and empty grooves are symmetrically formed in one side of the mounting plate; a reciprocating screw rod is rotationally connected to the interior of the empty groove, a driving motor is fixedly installed at the end, penetrating out of the box body, of the reciprocating screw rod, and a sliding block A is connected to the outer surface of the reciprocating screw rod in a threaded mode. The accurate control of the pneumatic system and the electromagnetic valve provides stable support for the supporting legs, meanwhile, the synchronous operation of the transmission mechanism ensures the coordinated action of the box door and the supporting legs, and the arrangement of the telescopic plate effectively prevents foreign matters from invading, protects internal machinery, and prolongs the service life of the unmanned aerial vehicle.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV folding frame. Background Technology

[0002] Unmanned aerial vehicles (UAVs), or drones, are unmanned aircraft controlled by radio remote control equipment and onboard program control devices. With the development of modern technology, UAVs are widely used in aerial photography, agriculture, disaster relief, wildlife observation, and film and television shooting. However, when existing UAVs land, due to poor shock absorption, they often suffer strong impact damage to the fuselage, affecting the lifespan of the UAV.

[0003] Existing drone landing gear is usually directly fixed to the lower part of the drone and always kept in a supported and deployed state. This causes the drone to collide with obstacles in certain special flight scenarios, resulting in damage to the drone's structure. In addition, the deployed landing gear increases wind resistance during flight, increases energy consumption, and does not guarantee stability during flight.

[0004] In view of this, we have studied and improved upon the existing problems to provide a folding frame for drones. This solves the problem that the existing frames do not have folding capabilities or the folding methods are too cumbersome. The aim of this technology is to solve the problem and improve its practical value. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a folding drone frame. This invention achieves rapid unfolding and locking of the support legs through an automated mechanical structure, significantly enhancing landing stability. Precise control of the pneumatic system and solenoid valves provides stable support for the support legs. At the same time, the synchronous operation of the transmission mechanism ensures coordinated movement between the case door and the support legs. The telescopic plate effectively prevents foreign objects from entering, protects the internal machinery, and extends the service life of the drone.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a drone folding frame, comprising a drone body, a box fixedly connected to the bottom of the drone body, an installation plate fixedly connected to the top of the box, symmetrically arranged slots on one side of the installation plate, a reciprocating screw rotatably connected inside the slots, a drive motor fixedly installed at one end of the reciprocating screw extending out of the box, a slider A threadedly connected to the outer surface of the reciprocating screw, a rotating rod rotatably connected to the bottom of the installation plate, a connecting rod fixedly connected to the outer wall of the rotating rod, a support foot fixedly connected to one end of the connecting rod, a linkage rod rotatably connected between the slider A and the connecting rod, symmetrically arranged doors slidably connected inside the box, a rack fixedly connected to the top of one of the doors, a transmission mechanism fixedly sleeved on the outer wall of the outer side of the installation plate extending from the reciprocating screw, a hinge seat fixedly connected to the bottom of the door, a telescopic plate fixedly connected to the bottom of the box, and the door and the telescopic plate rotatably connected via the rotating plate.

[0007] Preferably, the number of support feet is set to four sets, and the four sets of support feet are symmetrical in pairs, and the bottom of the support feet is provided with anti-slip rubber pads.

[0008] Preferably, a support rod is provided between the two sets of cabinet doors, and the support rods are intersected by a pivot.

[0009] Preferably, the transmission mechanism includes a rotating wheel A, a rotating wheel B, a belt, and a gear. The rotating wheel A is fixedly sleeved on the outer surface of the reciprocating lead screw. A rotating shaft is rotatably connected to the inner wall of the housing. The rotating wheel B is fixedly sleeved on the outer surface of the rotating shaft. The belt is fixedly connected to one side of the rotating wheel B. The rotating wheel A and the rotating wheel B are connected by belt drive.

[0010] Preferably, an air pipe is fixedly installed at the bottom of the drone body, a piston rod is slidably connected inside the air pipe, a piston is fixedly connected to the top of the piston rod, and a slider B is fixedly connected to the bottom of the piston rod.

[0011] Preferably, the outer wall of the connecting rod is provided with a groove, the surface of the groove is made smooth, and the slider B slides inside the groove.

[0012] Preferably, a solenoid valve is fixedly installed on the outer wall of the trachea.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, a drone folding frame utilizes a reciprocating lead screw, a drive motor, a slider A, a linkage rod, and support feet to automatically unfold and lock the support feet, improving the drone's stability during landing. During the rotation of the connecting rod, a solenoid valve is activated, causing the piston rod to move along with the connecting rod. When the support feet rotate to parallel with the ground, the solenoid valve closes, and the air pressure in the air pipe provides fixed support for the support feet, further enhancing the drone's landing stability. Simultaneously with the opening of the support feet, the drive motor rotates, driving a transmission mechanism that opens the case door synchronously. As the case door opens, it moves the bottom hinge seat, causing the hinge seat to rotate the rotating plate. Since one end of the rotating plate is connected to the bottom of the telescopic plate, the movement of the rotating plate opens the telescopic plate, sealing the opened support feet and preventing small particles or other foreign matter from entering the case. This avoids wear and damage to the support feet caused by particulate matter, ensuring the flexibility and durability of the support feet during unfolding and folding, thereby extending the drone's lifespan. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a drone folding frame proposed in this utility model;

[0016] Figure 2 This is an enlarged structural diagram of part A of a folding frame for a drone proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the housing of a drone folding frame proposed in this utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the mounting plate of a drone folding frame proposed in this utility model;

[0019] Figure 5 This is an enlarged structural diagram of part B of a drone folding frame proposed in this utility model.

[0020] Legend:

[0021] 1. UAV body; 2. Housing; 3. Mounting plate; 4. Empty slot; 5. Reciprocating lead screw; 6. Drive motor; 7. Slider A; 8. Rotating rod; 9. Connecting rod; 10. Support foot; 11. Linkage rod; 12. Housing door; 13. Rack; 14. Rotating wheel A; 15. Rotating wheel B; 16. Belt; 17. Gear; 18. Support rod; 19. Hinge seat; 20. Rotating plate; 21. Telescopic plate; 22. Air pipe; 23. Piston rod; 24. Piston; 25. Solenoid valve; 26. Slide groove; 27. Slider B. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] Reference Figure 1-5A folding frame for drones includes a drone body 1. A housing 2 is fixedly connected to the bottom of the drone body 1. A mounting plate 3 is fixedly connected to the top of the housing 2. Symmetrically arranged slots 4 are formed on one side of the mounting plate 3. A reciprocating screw 5 is rotatably connected inside the slots 4. A drive motor 6 is fixedly installed at one end of the reciprocating screw 5, which extends out of the housing 2. A slider A7 is threaded onto the outer surface of the reciprocating screw 5. A rotating rod 8 is rotatably connected to the bottom of the mounting plate 3. A connecting rod 9 is fixedly connected to the outer wall of the rotating rod 8. A support foot 10 is fixedly connected to one end of the connecting rod 9. A linkage rod 11 is rotatably connected between the slider A7 and the connecting rod 9. The housing 2 has a sliding connection... The enclosure 12 has symmetrically arranged doors, one of which has a rack 13 fixedly connected to its top. A reciprocating screw 5 extends out of the outer wall of the mounting plate 3 and is fitted with a transmission mechanism. A hinge seat 19 is fixedly connected to the bottom of the door 12, and a telescopic plate 21 is fixedly connected to the bottom of the enclosure 2. The door 12 and the telescopic plate 21 are rotatably connected by a rotating plate 20. By starting the drive motor 6, the drive motor 6 drives the reciprocating screw 5 to rotate, which in turn drives the slider A7 toward the center of the UAV body 1. Since the slider A7 and the connecting rod 9 are rotatably connected by a linkage rod 11, the connecting rod 9 will rotate with the slider A7 as it moves. The movement of the connecting rod 9 unfolds the support leg 10. Through the coordination of the reciprocating screw 5, drive motor 6, slider A7, linkage rod 11, and support leg 10, the automatic unfolding and locking of the support leg 10 is achieved, improving the stability of the drone during landing. During the rotation of the connecting rod 9, the solenoid valve 25 is opened, and the piston rod 23 moves along with the rotation of the connecting rod 9. When the support leg 10 rotates to be parallel to the ground, the solenoid valve 25 is closed, and the air pressure in the air pipe 22 provides fixed support for the support leg 10, thereby improving the stability of the drone during landing. Furthermore, while the support leg 10 is unfolding, the drive motor 6 rotates, driving the transmission mechanism. The transmission mechanism enables the door 12 to be opened synchronously. During the opening process, the door 12 drives the hinge seat 19 at the bottom to move, causing the hinge seat 19 to drive the rotating plate 20 to rotate. Since one end of the rotating plate 20 is connected to the bottom of the telescopic plate 21, the telescopic plate 21 can be opened as the rotating plate 20 moves. The telescopic plate 21 can seal the opened support leg 10, preventing fine particles or other foreign substances from entering the interior of the housing 2, thereby avoiding wear and damage to the support leg 10 caused by particles, ensuring the flexibility and durability of the support leg 10 when unfolding and folding, and thus improving the service life of the drone.

[0025] Specifically, there are four sets of support feet 10, and the four sets of support feet 10 are symmetrical in pairs. The bottom of the support feet 10 is equipped with anti-slip rubber pads. The symmetrical layout of the four sets of support feet 10 provides balance and stability for the drone during landing. The anti-slip rubber pads increase the friction with the ground and ensure the stability of the drone.

[0026] Specifically, a support rod 18 is provided between the two sets of cabinet doors 12, and the support rods 18 are intersected by a pivot. The intersecting support rods 18 are used to drive the other cabinet door 12 to open when one cabinet door 12 moves, so as to realize the synchronous opening and closing of the two sets of cabinet doors 12.

[0027] Specifically, the transmission mechanism includes a rotating wheel A14, a rotating wheel B15, a belt 16, and a gear 17. The rotating wheel A14 is fixedly sleeved on the outer surface of the reciprocating screw 5. A rotating shaft is rotatably connected to the inner wall of the housing 2. The rotating wheel B15 is fixedly sleeved on the outer surface of the rotating shaft. The gear 17 is fixedly connected to one side of the rotating wheel B15. The rotating wheel A14 and the rotating wheel B15 are connected by the belt 16. When the motor drives the reciprocating screw 5 to rotate, the rotating wheel A14 rotates accordingly. The power is transmitted to the rotating wheel B15 through the belt 16, which in turn drives the gear 17 to rotate. This ensures the synchronous movement of the support leg 10 and the door 12, enabling the drone folding frame to unfold and fold smoothly and reliably.

[0028] Specifically, an air pipe 22 is fixedly installed on the bottom of the drone body 1. A piston rod 23 is slidably connected inside the air pipe 22. A piston 24 is fixedly connected to the top of the piston rod 23. A slider B27 is fixedly connected to the bottom of the piston rod 23. The piston rod 23 and piston 24 inside the air pipe 22 constitute a pneumatic system to increase the stability of the support foot 10 when the drone lands.

[0029] Specifically, the outer wall of the connecting rod 9 is provided with a groove 26. The surface of the groove 26 is made smooth. The slider B27 slides inside the groove 26. The smooth surface of the groove 26 helps to reduce the friction and wear of the slider B27 during the sliding process, and can improve the movement efficiency of the slider B27.

[0030] Specifically, a solenoid valve 25 is fixedly installed on the outer wall of the trachea 22 to precisely control the air intake and exhaust operations inside the trachea 22.

[0031] Working principle: During use, the drive motor 6 is started, which drives the reciprocating screw 5 to rotate. The reciprocating screw 5 drives the slider A7 towards the center of the drone body 1. Since the slider A7 and the connecting rod 9 are connected by the linkage rod 11, the slider A7 moves, and the linkage rod 11 drives the connecting rod 9 to rotate, thereby unfolding the support leg 10. By using the cooperation of the reciprocating screw 5, drive motor 6, slider A7, linkage rod 11 and support leg 10, the automatic unfolding and locking of the support leg 10 is achieved, improving the stability of the drone during landing. During the rotation of the connecting rod 9, the solenoid valve 25 is opened, and the piston rod 23 moves with the rotation of the connecting rod 9. When the support leg 10 rotates to be parallel to the ground, the solenoid valve 25 is closed, and the air pressure in the air pipe 22 is used to support the support leg 10. Fixed support is provided to improve the stability of the drone during landing. Simultaneously, the drive motor 6 rotates, driving the transmission mechanism to open the door 12. During opening, the door 12 moves the bottom hinge seat 19, causing the hinge seat 19 to rotate the rotating plate 20. Since one end of the rotating plate 20 is connected to the bottom of the telescopic plate 21, its movement opens the telescopic plate 21. The telescopic plate 21 seals the opened support foot 10, preventing small particles or other foreign matter from entering the housing 2, thus avoiding wear and damage to the support foot 10 caused by particles. This ensures the flexibility and durability of the support foot 10 during unfolding and folding, thereby extending the drone's lifespan.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A folding frame for unmanned aerial vehicles (UAVs), comprising a UAV body (1), characterized in that: The bottom of the UAV body (1) is fixedly connected to a box (2). The top of the box (2) is fixedly connected to a mounting plate (3). A symmetrically arranged slot (4) is opened on one side of the mounting plate (3). A reciprocating screw (5) is rotatably connected inside the slot (4). A drive motor (6) is fixedly installed at one end of the reciprocating screw (5) that passes through the box (2). A slider A (7) is threadedly connected to the outer surface of the reciprocating screw (5). A rotating rod (8) is rotatably connected to the bottom of the mounting plate (3). A connecting rod (9) is fixedly connected to the outer wall of the rotating rod (8). One end is fixedly connected to a support foot (10), the slider A (7) and the connecting rod (9) are rotatably connected to a linkage rod (11), the box body (2) is slidably connected to symmetrically arranged box doors (12), the top of one of the box doors (12) is fixedly connected to a rack (13), the reciprocating screw (5) extends out of the outer wall of the mounting plate (3) and is fixedly fitted with a transmission mechanism, the bottom of the box door (12) is fixedly connected to a hinge seat (19), the bottom of the box body (2) is fixedly connected to a telescopic plate (21), and the box door (12) and the telescopic plate (21) are rotatably connected through a rotating plate (20).

2. The folding frame for a drone according to claim 1, characterized in that: The number of the support feet (10) is set to four sets, and the four sets of support feet (10) are symmetrical in pairs. The bottom of the support feet (10) is provided with anti-slip rubber pads.

3. The folding frame for a drone according to claim 1, characterized in that: A support rod (18) is provided between the two sets of cabinet doors (12), and the support rods (18) are intersected by a pivot.

4. A folding frame for unmanned aerial vehicles according to claim 1, characterized in that: The transmission mechanism includes a rotating wheel A (14), a rotating wheel B (15), a belt (16), and a gear (17). The rotating wheel A (14) is fixedly sleeved on the outer surface of the reciprocating screw (5). The inner wall of the housing (2) is rotatably connected to a rotating shaft. The rotating wheel B (15) is fixedly sleeved on the outer surface of the rotating shaft. The gear (17) is fixedly connected to one side of the rotating wheel B (15). The rotating wheel A (14) and the rotating wheel B (15) are connected by a belt (16).

5. A folding frame for unmanned aerial vehicles according to claim 1, characterized in that: An air pipe (22) is fixedly installed at the bottom of the drone body (1). A piston rod (23) is slidably connected inside the air pipe (22). A piston (24) is fixedly connected to the top of the piston rod (23). A slider B (27) is fixedly connected to the bottom of the piston rod (23).

6. A folding frame for unmanned aerial vehicles according to claim 1, characterized in that: The outer wall of the connecting rod (9) is provided with a groove (26), the surface of the groove (26) is made smooth, and the slider B (27) slides inside the groove (26).

7. A folding frame for unmanned aerial vehicles according to claim 1, characterized in that: A solenoid valve (25) is fixedly installed on the outer wall of the trachea (22).

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