Expandable unmanned aerial vehicle airfoil assembly

Abstract

The utility model provides an expandable unmanned aerial vehicle airfoil surface assembly, which relates to the technical field of unmanned aerial vehicles and comprises an airfoil main body, two sockets are arranged on the bottom surface of the airfoil main body, a first hanging rack is arranged at the bottom of the airfoil main body, a second hanging rack is arranged on one side of the first hanging rack, and plugs are arranged on the top surfaces of the first hanging rack and the second hanging rack. The two sides of the second hanging frame are each provided with a mounting frame, the side faces of the two mounting frames are each provided with two clamping grooves, the two ends of the first hanging frame and the two ends of the second hanging frame are each provided with a motor, and after the second hanging frame is installed, the rotary knob is rotated, so that the rotary knob drives the clamping blocks to be clamped into the clamping grooves of the mounting frames through the rotary rods; when the second hanging frame is installed, a pin hole in the surface of the knob is aligned with a movable groove in the surface of the second hanging frame, and then a fixing pin in the movable groove is extruded out of the movable groove through a reset spring and clamped into the pin hole of the knob to complete installation of the second hanging frame, so that the defect that the number of power parts cannot be changed according to different task conditions is overcome.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to an expandable UAV wing assembly. Background Technology

[0002] According to the Chinese Publication No. CN212473892U, a modular compound-wing unmanned aerial vehicle (UAV) belongs to the field of UAV equipment technology. The modular compound-wing UAV includes a fuselage body, two outer wing surfaces, two sets of vertical propulsion components, and a tail assembly. The fuselage body has a symmetrical shape, including a cabin and two outwardly extending middle wings on both sides of the cabin. The two outer wing surfaces are respectively inserted into the outer sides of the middle wings to form symmetrical wings. The two sets of vertical propulsion components are respectively connected and installed to the lower outer ends of the middle wings to form a quadcopter structure, used to generate lift thrust for the compound-wing UAV. The tail assembly is inserted into the rear end of the fuselage body, and a level flight propulsion unit is provided at the rear of the tail assembly to generate level flight thrust for the compound-wing UAV.

[0003] Traditional drones are typically equipped with only fixed power components, which means that the endurance of a single power system may not be sufficient for long-distance mapping missions. Furthermore, when performing emergency material transport missions, the limited power output is insufficient to support heavy loads, and the number of power components cannot be changed according to different mission conditions. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that cannot adjust the number of power components according to different mission conditions, and to propose an expandable UAV wing surface assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an expandable UAV wing assembly, comprising a wing body, two sockets on the bottom surface of the wing body, a first bracket on the bottom of the wing body, a second bracket on one side of the first bracket, a plug on the top surface of both the first and second brackets, mounting brackets on both sides of the second bracket, two slots on the sides of both mounting brackets, motors at both ends of both the first and second brackets, propellers on the top of each of the four motors, a fixing bracket at the bottom of the second bracket, two through holes on the surface of the fixing bracket, knobs inside the two through holes, rotating rods on the top of the two knobs, and locking blocks on the top of the two rotating rods, two rotating grooves inside the second bracket, two pin holes on the surface of the two knobs, movable grooves at the bottom of the two pin holes, return springs inside the four movable grooves, and fixing pins at the bottom of the four return springs.

[0006] Preferably, the four motors are evenly mounted at both ends of the first and second brackets, and the four propellers are evenly mounted on top of the four motors.

[0007] Preferably, both the first and second brackets are installed at the bottom of the socket on the bottom surface of the wing body, and the plugs on the top surfaces of both the first and second brackets are installed in the socket. The first bracket is bolted to the wing body.

[0008] Preferably, both mounting brackets are installed on the bottom surface of the wing body and are welded to the wing body. The two mounting brackets are mirror images of each other with the socket as the center, and the positions of the two slots on the sides of the two mounting brackets correspond one-to-one.

[0009] Preferably, the fixing bracket is installed on the bottom surface of the second bracket, and the fixing bracket is bolted to the second bracket. Both knobs are installed on the bottom surface of the second bracket through the fixing bracket.

[0010] Preferably, both of the two rotating rods are mounted on the top surfaces of the two knobs and are threadedly connected to the knobs. Both of the two locking blocks are mounted on the top surfaces of the two rotating rods and are threadedly connected to the two locking blocks. The positions of the two rotating slots correspond one-to-one with the positions of the locking slots on the surfaces of the two mounting brackets, and both locking blocks are mounted in the two rotating slots.

[0011] Preferably, all four movable slots are located on the bottom surface of the second bracket, and the positions of the movable slots correspond one-to-one with the positions of the pin holes on the knob surface. The two reset springs and the two fixing pins are installed in the movable slots, and the fixing pins pass through the movable slots and are engaged in the pin holes on the knob surface.

[0012] Beneficial effects

[0013] In this invention, when an additional power component is needed, the plug on the top surface of the second mount is aligned with the socket between the two mounting brackets, and the plug is inserted, connecting the motors at both ends of the second mount to the UAV's electrical system. After the second mount is installed, the knob is rotated, causing the knob to drive the locking block into the slot of the mounting bracket via the rotating rod. When the locking block is engaged in the slot, the pin hole on the knob surface aligns with the movable groove on the surface of the second mount. After alignment, the fixing pin inside the movable groove is pushed out of the movable groove by the return spring and engaged in the pin hole of the knob to complete the installation of the second mount. This solves the problem of not being able to change the number of power components according to different mission requirements. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of the present invention;

[0015] Figure 2 This is a partial lower view of the present invention;

[0016] Figure 3 For the present utility model Figure 2 Sectional view at point AA;

[0017] Figure 4 This is a partial perspective view of the present invention;

[0018] Figure 5 This is a bottom view of a partial part of the present invention;

[0019] Figure 6 For the present utility model Figure 5 Sectional view at BB.

[0020] Legend:

[0021] 1. Wing body; 2. First pylon; 3. Second pylon; 4. Motor; 5. Propeller; 6. Socket; 7. Mounting bracket; 8. Slot; 9. Plug; 10. Fixing bracket; 11. Through hole; 12. Knob; 13. Pin hole; 14. Movable slot; 15. Return spring; 16. Fixing pin; 17. Rotating rod; 18. Locking block; 19. Rotating slot. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0025] Reference Figure 1-6An expandable UAV wing assembly includes a wing body 1, with two sockets 6 on the bottom surface of the wing body 1, a first mounting bracket 2 on the bottom of the wing body 1, a second mounting bracket 3 on one side of the first mounting bracket 2, plugs 9 on the top surfaces of both the first mounting bracket 2 and the second mounting bracket 3, mounting brackets 7 on both sides of the second mounting bracket 3, and two slots 8 on the sides of each of the two mounting brackets 7, motors 4 at both ends of the first mounting bracket 2 and the second mounting bracket 3, propellers 5 on the top of each of the four motors 4, and a fixing bracket 10 at the bottom of the second mounting bracket 3. The surface of the fixing bracket 10 has two through holes 11, and each of the two through holes 11 has a rotor inside. The first and second brackets 12 each have a knob 17 on top, and a locking block 18 on top of each knob 17. The second bracket 3 has two rotating grooves 19 inside. The surfaces of the two knobs 12 each have two pin holes 13, and the bottoms of the pin holes 13 each have movable grooves 14. Each of the four movable grooves 14 has a return spring 15 inside, and the bottoms of the four return springs 15 each have a fixing pin 16. Four motors 4 are evenly mounted at both ends of the first bracket 2 and the second bracket 3, and four propellers 5 are evenly mounted on top of the four motors 4. Both the first and second brackets 2 and 3 are mounted at the bottom of the socket 6 on the underside of the wing body 1. The plugs 9 on the top surfaces of the first mounting bracket 2 and the second mounting bracket 3 are both installed in the socket 6. The first mounting bracket 2 is bolted to the wing body 1. The two mounting brackets 7 are both installed on the bottom surface of the wing body 1 and are welded to the wing body 1. The two mounting brackets 7 are mirror images of each other with the socket 6 as the center. The two slots 8 on the sides of the two mounting brackets 7 are positioned one-to-one. The fixing bracket 10 is installed on the bottom surface of the second mounting bracket 3 and is bolted to the second mounting bracket 3. The two knobs 12 are both installed on the bottom surface of the second mounting bracket 3 through the fixing bracket 10. The two rotating rods 17 are both installed on the top surface of the two knobs 12 and are aligned with the knobs 12. The screw connection is as follows: two locking blocks 18 are installed on the top surface of two rotating rods 17, and the two rotating rods 17 are threadedly connected to the two locking blocks 18. The positions of the two rotating slots 19 correspond one-to-one with the positions of the locking slots 8 on the surface of the two mounting brackets 7, and the two locking blocks 18 are installed in the two rotating slots 19. The four movable slots 14 are all located on the bottom surface of the second bracket 3, and the positions of the movable slots 14 correspond one-to-one with the positions of the pin holes 13 on the surface of the knob 12. The two return springs 15 and the two fixing pins 16 are all installed in the movable slots 14, and the fixing pins 16 all pass through the movable slots 14 and are engaged in the pin holes 13 on the surface of the knob 12.

[0026] The wing body 1 is the basic support structure for the entire wing assembly, providing a mounting platform for other components. Its bottom socket 6 mates with the plug 9 on the mounting bracket to establish a circuit connection, allowing the motor 4 on the mounting bracket to connect to the UAV's power supply and control circuitry. The first mounting bracket 2 and the second mounting bracket 3, as components supporting the motor 4 and propeller 5, serve to support and fix the power unit. Their top plugs 9 connect to the bottom socket 6 of the wing body 1, establishing an electrical connection and allowing the motor 4 to receive power. The fixing bracket 10 at the bottom of the second mounting bracket 3 is used to install locking components such as the knob 12, providing mounting position and support. When the motor 4 is powered, it converts electrical energy into mechanical energy based on the principle of electromagnetic induction, driving the propeller 5 to rotate at high speed. As the propeller 5 rotates, it generates upward lift or forward thrust through interaction with the air, providing power for the UAV's flight. The socket 6 is fixed to the bottom surface of the wing body 1, and the plug 9 is installed on the top surface of the mounting bracket. When the two are connected, a circuit is established, connecting the motor 4 to the UAV's power supply and control system, thereby enabling control of the motor 4's operation. Mounting bracket 7 is welded to the bottom surface of the wing body 1, serving to assist in positioning and fixing the second mounting bracket 3. A slot 8 is located on the side of mounting bracket 7 and cooperates with a locking block 18 on the second mounting bracket 3. When the locking block 18 rotates and engages with the slot 8, a mechanical lock is achieved between the second mounting bracket 3 and the wing body 1. Knob 12 can rotate within the through hole 11 of the fixing bracket 10. Through a threaded connection with the rotating rod 17, rotating knob 12 drives the rotating rod 17 to rotate. The locking block 18 at the top of the rotating rod 17 then rotates within the rotating groove 19 inside the second mounting bracket 3. When knob 12 is rotated to a suitable angle and moves to the position of slot 8, the locking block 18 engages with slot 8, completing the mechanical fixation of the second mounting bracket 3. The rotating groove 19 provides space for the locking block 18 to rotate, ensuring that the locking block 18 can accurately engage or disengage from slot 8 under the drive of knob 12 and rotating rod 17. The pin hole 13 on the surface of knob 12 corresponds to the movable groove 14. When the locking block 18 is engaged in the locking slot 8, the rotation of the knob 12 will align the pin hole 13 with the movable slot 14. The return spring 15 in the movable slot 14 is compressed, applying a spring force to the fixing pin 16. When the pin hole 13 is aligned with the movable slot 14, the fixing pin 16 is ejected under the spring force of the return spring 15 and engages with the pin hole 13, preventing the knob 12 from rotating accidentally and locking the position of the knob 12, thereby ensuring the second bracket 3 is securely installed. Specific Implementation Example 2:

[0028] Reference Figure 1-6An expandable UAV wing assembly, further based on the basic structure in Specific Embodiment 1, allows for additional power to be supplied to the UAV during missions. When the UAV requires additional power, the plug 9 on the top surface of the second mount 3 is aligned with the socket 6 between the two mounting brackets 7 on the bottom surface of the wing body 1 and inserted. This connects the motors 4 at both ends of the second mount 3 to the UAV's electrical system, providing them with power. After the plug 9 is inserted, the knob 12 is rotated. The knob 12, via the rotating rod 17, causes the locking block 18 to rotate and move within the rotating groove 19, locking the locking block 18 into the slot 8 of the mounting bracket 7, thus mechanically locking the second mount 3 to the wing body 1. Simultaneously, the knob 12 rotates, aligning the pin hole 13 on its surface with the movable groove 14 on the surface of the second mount 3. The fixing pin 16 within the movable groove 14, under the elastic force of the return spring 15, pops out and engages with the pin hole 13 of the knob 12, further locking the knob 12 in place and preventing it from loosening. Through the above operations, the installation of the second pylon 3 is completed, increasing the number of power components for the UAV. This allows for flexible adjustment of the power configuration according to different mission requirements, solving the problem that traditional UAVs cannot easily change the number of power components. The connection between the first pylon 2 and the wing body 1 is relatively fixed, mainly through bolts, providing basic power; the second pylon 3 can be expanded as needed, enhancing the flexibility of the UAV's power system.

[0029] In summary:

[0030] 1. When additional power components are needed, the plug 9 on the top surface of the second mount 3 is aligned with the socket 6 between the two mounting brackets 7, and the plug 9 is inserted, so that the motors 4 at both ends of the second mount 3 are connected to the UAV's circuit system. After the second mount 3 is installed, the knob 12 is rotated, so that the knob 12 drives the locking block 18 to engage with the locking groove 8 of the mounting bracket 7 through the rotating rod 17. When the locking block 18 engages with the locking groove 8, the pin hole 13 on the surface of the knob 12 will align with the movable groove 14 on the surface of the second mount 3. After alignment, the fixing pin 16 inside the movable groove 14 will be squeezed out of the movable groove 14 by the return spring 15 and engage with the pin hole 13 of the knob 12 to complete the installation of the second mount 3. This solves the problem of not being able to change the number of power components according to different mission conditions.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An expandable unmanned airfoil assembly comprising an airfoil body (1), characterized in that: The bottom surface of the wing body (1) is provided with two sockets (6), the bottom of the wing body (1) is provided with a first hanger (2), one side of the first hanger (2) is provided with a second hanger (3), the top surfaces of the first hanger (2) and the second hanger (3) are provided with plugs (9), both sides of the second hanger (3) are provided with mounting racks (7), the side surfaces of the two mounting racks (7) are provided with two clamping grooves (8), both ends of the first hanger (2) and the second hanger (3) are provided with motors (4), the top surfaces of the four motors (4) are provided with propellers (5), the bottom of the second hanger (3) is provided with a fixing rack (10), the surface of the fixing rack (10) is provided with two through holes (11), the interiors of the two through holes (11) are provided with knobs (12), the top surfaces of the two knobs (12) are provided with rotating rods (17), the top surfaces of the two rotating rods (17) are provided with clamping blocks (18), the interior of the second hanger (3) is provided with two rotating grooves (19), the surfaces of the two knobs (12) are provided with two pin holes (13), the bottom surfaces of the two pin holes (13) are provided with movable grooves (14), the interiors of the four movable grooves (14) are provided with return springs (15), and the bottom surfaces of the four return springs (15) are provided with fixed pins (16).

2. An expandable unmanned airfoil assembly according to claim 1, wherein: The four motors (4) are evenly arranged at both ends of the first hanger (2) and the second hanger (3), and the four propellers (5) are evenly arranged at the top surfaces of the four motors (4).

3. An expandable unmanned airfoil assembly according to claim 1, wherein: The first hanger (2) and the second hanger (3) are arranged at the bottom of the socket (6) on the bottom surface of the wing body (1), the plugs (9) on the top surfaces of the first hanger (2) and the second hanger (3) are arranged in the socket (6), and the first hanger (2) is bolted to the wing body (1).

4. An expandable unmanned airfoil assembly according to claim 1, wherein: The two mounting racks (7) are arranged on the bottom surface of the wing body (1) and are welded to the wing body (1), the two mounting racks (7) are arranged in mirror image with the socket (6) as the center, and the two clamping grooves (8) on the side surfaces of the two mounting racks (7) are arranged in one-to-one correspondence.

5. An expandable unmanned airfoil assembly according to claim 1, wherein: The fixing rack (10) is arranged on the bottom surface of the second hanger (3) and is bolted to the second hanger (3), and the two knobs (12) are arranged on the bottom surface of the second hanger (3) through the fixing rack (10).

6. An expandable unmanned airfoil assembly according to claim 1, wherein: The two rotating rods (17) are arranged on the top surfaces of the two knobs (12) and are threadedly connected to the knobs (12), the two clamping blocks (18) are arranged on the top surfaces of the two rotating rods (17) and are threadedly connected to the two rotating rods (17), the two rotating grooves (19) are arranged in one-to-one correspondence with the clamping grooves (8) on the surfaces of the two mounting racks (7), and the two clamping blocks (18) are arranged in the two rotating grooves (19).

7. An expandable unmanned airfoil assembly according to claim 1, wherein: Four said movable grooves (14) are arranged on the bottom surface of the second hanger (3), and the positions of the movable grooves (14) correspond to the positions of the pin holes (13) on the surface of the knob (12) one by one, two said reset springs (15) and two said fixed pins (16) are installed in the movable grooves (14), and the fixed pins (16) penetrate out of the movable grooves (14) and are clamped into the pin holes (13) on the surface of the knob (12).

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