Large unmanned aerial vehicle frame folding structure

Abstract

This utility model discloses a folding structure for a large unmanned aerial vehicle (UAV) frame. It relates to the field of UAV technology and includes a central frame assembly. The central frame assembly includes a fuselage frame, with a mounting base fixedly installed on the outer side of each side of the fuselage frame. A main support leg assembly is provided on one side of each mounting base, and a secondary support leg assembly is provided at one end of the main support leg assembly. First hinge seats are fixedly installed on both sides of the bottom of the mounting base. The main support leg assembly includes a support leg frame, with first hinge members fixedly installed on both sides of the bottom of one end of the support leg frame. The first hinge members are hinged to the first hinge seats. Hinge holes are provided on both sides of the other end of the support leg frame. The secondary support leg assembly includes two support leg pieces, with second hinge members fixedly installed on the inner sides of the top of each of the two support leg pieces. The second hinge members are hinged to the hinge holes. This utility model enables the folding of the UAV frame during storage and transportation, reducing the storage volume and possessing high practical value.

Description

Technical Field

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

[0002] A drone, or unmanned aerial vehicle, is an unmanned aircraft controlled by radio remote control equipment or its own program control device. Drones can perform a variety of missions without a pilot. They can fly autonomously according to pre-programmed flight plans or adjust their flight paths in real time under the control of a ground control station.

[0003] Based on the above, the following problems were found: the current large drones occupy a large amount of storage space when not in operation. The entire drone's fuselage structure is generally only disassembled and folded at the carbon fiber tube clamps. Although this reduces the proportion of the fuselage space, the drone frame structure itself occupies a large amount of storage space and is inconvenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a large-scale drone frame folding structure in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a folding frame structure for large unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background art.

[0006] A large unmanned aerial vehicle (UAV) frame folding structure includes a central frame assembly. The central frame assembly includes a frame, and a mounting base is fixedly installed on the outer side of each side of the frame. A main support leg assembly is provided on one side of the mounting base, and a secondary support leg assembly is provided at one end of the main support leg assembly. First hinge seats are fixedly installed on both sides of the bottom of the mounting base. The main support leg assembly includes a support leg frame, and first hinge members are fixedly installed on both sides of the bottom of one end of the support leg frame. The first hinge members are hinged to the first hinge seats. Hinge holes are opened on both sides of the other end of the support leg frame. The secondary support leg assembly includes two support leg pieces, and a connecting rod is fixedly installed at the bottom between the two support leg pieces. Second hinge members are fixedly installed on the inner side of the top of the two support leg pieces, and the second hinge members are hinged to the hinge holes.

[0007] By adopting the above technical solution, the frame design facilitates the internal mounting of the drone's control module and power module. The frame can be a hollow quadrangular prism, hexagonal prism, or octagonal prism structure, allowing for easy application to quadcopter, hexagonal, or octagonal drones. The mounting base facilitates the fixed mounting of the main support leg assembly on the side of the frame for securing the drone's power arm. The secondary support leg assembly, positioned at one end of the main support leg assembly, forms the drone's landing support leg. The support leg frame allows the drone's power arm to pass through, reinforcing and protecting its installation. The first hinge joint connects to the first hinge seat, enabling the support leg frame to be hinged to the mounting base, allowing the main support leg assembly to unfold or fold on the outside of the frame. The second hinge joint connects to the hinge hole, allowing the support leg piece to be hinged to the support leg frame, enabling the support leg piece to unfold or fold at one end of the support leg frame, thus folding the device and reducing its storage volume.

[0008] Furthermore, the mounting base has a mounting hole in the middle, which passes through the mounting base and the frame.

[0009] By adopting the above technical solution and setting the mounting holes, it is easy to fix and install the drone's power arm, and it is convenient to connect the control module and power module inside the frame to the power arm electrically.

[0010] Furthermore, a first mounting plate is fixedly mounted on the top of the mounting base, and a first threaded sleeve is fixedly mounted on the middle of the first mounting plate.

[0011] By adopting the above technical solution, the first mounting plate and the first threaded sleeve facilitate the fixation of the main support leg assembly in its unfolded state.

[0012] Furthermore, the support leg frame has a first hinge member with a second mounting plate at one top end. The second mounting plate is located on top of the first mounting plate, and a first threaded rod is inserted through the middle of the second mounting plate. The first threaded rod is threadedly connected to the first threaded sleeve.

[0013] By adopting the above technical solution, the first threaded rod and the first threaded sleeve are connected by a thread, which makes it easy to fix the second mounting plate on the top of the first mounting plate, thereby fixing the main leg assembly in the unfolded state and preventing the main leg assembly from shaking during the use of the drone.

[0014] Furthermore, a first limiting ring is fixedly installed on the top of the second mounting plate, a first knob is fixedly installed on the top of the first threaded rod, and a first limiting groove is opened on the outer side of the middle part of the first threaded rod, with the first limiting groove located outside the first limiting ring.

[0015] By adopting the above technical solution, the setting of the first limiting ring facilitates the prevention of the first threaded rod from sliding out of the second mounting plate when the main support leg assembly is folded and stored. The first knob facilitates the rotation of the first threaded rod when locking the main support leg assembly in the unfolded state, so that the first threaded rod is threadedly connected to the first threaded sleeve, and can easily unlock the main support leg assembly in the unfolded state.

[0016] Furthermore, the support leg frame is provided with a first hinge member and a second hinge seat fixedly installed at one bottom end. The second hinge seat is hinged to a support rod, and a second threaded sleeve is fixedly installed at one end of the support rod.

[0017] By adopting the above technical solution, the second hinge seat facilitates the hinged fixing of the support rod to the bottom of the leg frame.

[0018] Furthermore, a connecting seat is rotatably connected between the two support legs at the middle, and a screw sleeve is fixedly installed in the middle of the connecting seat. A second threaded rod is inserted inside the screw sleeve, and the second threaded rod is threadedly connected to the second threaded sleeve.

[0019] By adopting the above technical solution, the second threaded rod and the second threaded sleeve are connected by threads, which makes it easy for the support rod to fix and support the middle part of the auxiliary leg assembly, so that the leg frame, leg piece and support rod form a stable triangular structure, and the leg piece can provide stable support for the UAV, which facilitates the formation of the UAV's landing legs.

[0020] Furthermore, a second limiting ring is fixedly installed inside the screw sleeve, a second knob is fixedly installed at the end of the second threaded rod away from the second threaded sleeve, and a second limiting groove is opened on the outer side of the middle part of the second threaded rod, the second limiting groove being located outside the second limiting ring.

[0021] By adopting the above technical solution, the setting of the second limiting ring facilitates the prevention of the second threaded rod from slipping out of the screw sleeve when the auxiliary leg assembly is folded and stored. The second knob facilitates the rotation of the second threaded rod to tighten and fix the screw sleeve to one end of the support rod, so that the support rod can support and fix the auxiliary leg assembly in the unfolded state, and facilitates the unlocking of the auxiliary leg assembly in the unfolded state.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: The frame design facilitates the internal fixing and installation of the drone's control module and power module. The frame can be a hollow quadrangular prism, hexagonal prism, or octagonal prism structure, making it convenient for use with quadcopter, hexagonal, or octagonal drones. The mounting base facilitates the fixed installation of the main support leg assembly on the side of the frame for securing the drone's power arm. The secondary support leg assembly is conveniently located at one end of the main support leg assembly to form the drone's landing support leg. The support leg frame design facilitates... The drone's power arm passes through the leg frame, facilitating reinforcement and protection of the power arm's installation. It is hinged to the first hinge seat via a first hinge member, allowing the leg frame to be hinged to the mounting base, enabling the main leg assembly to unfold or fold on the outside of the frame. A second hinge member is connected to the hinge hole, facilitating the hinge of the leg piece to the leg frame, allowing the leg piece to unfold or fold at one end of the leg frame, thus enabling the device to be folded and reducing its storage volume. This utility model allows for the folding of the drone's fuselage frame during storage and transportation, reducing its storage volume and possessing high practical value. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the unfolded state of a large unmanned aerial vehicle frame folding structure according to the present invention; Figure 2 This is a three-dimensional structural diagram of the folding frame structure of a large unmanned aerial vehicle (UAV) in its stowed state, according to this utility model. Figure 3 This is a three-dimensional structural diagram of the central frame component of this utility model; Figure 4 This is a partially exploded cross-sectional view of the main support leg assembly of this utility model; Figure 5 This is a partially exploded cross-sectional view of the auxiliary support leg assembly of this utility model.

[0024] In the diagram: 1. Central frame assembly; 11. Machine frame; 12. Mounting base; 13. Mounting hole; 14. First mounting piece; 15. First threaded sleeve; 16. First hinge seat; 2. Main support leg assembly; 21. Support leg frame; 22. First hinge element; 23. Second mounting piece; 24. First limiting ring; 25. First threaded rod; 26. First limiting groove; 27. First knob; 28. Second hinge seat; 29. ​​Support rod; 210. Second threaded sleeve; 211. Hinge hole; 3. Secondary support leg assembly; 31. Support leg piece; 32. Connecting rod; 33. Second hinge element; 34. Connecting seat; 35. Screw sleeve; 36. Second limiting ring; 37. Second threaded rod; 38. Second limiting groove; 39. Second knob. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 This utility model provides a technical solution: a large unmanned aerial vehicle (UAV) frame folding structure, including a central frame component 1, which includes a frame 11. The frame 11 facilitates the internal fixing and installation of the UAV's control module and power module. The frame 11 can be a hollow quadrangular prism, hexagonal prism, or octagonal prism structure, facilitating the use of the device in quadcopter, hexagonal, or octagonal UAVs. Each outer side of the frame 11 is fixedly equipped with a mounting base 12. The mounting base 12 facilitates the fixed installation of a main support leg component 2 on the side of the frame 11 for securing the UAV's power arm. A main support leg component 2 is located on one side of the mounting base 12, and a secondary support leg component 3 is located at one end of the main support leg component 2. The secondary support leg component 3 is conveniently located at one end of the main support leg component 2 to form the UAV's landing support leg. First hinge seats 16 are fixedly installed on both sides of the bottom of the mounting base 12. The main support leg component 2 includes a support leg frame 21. The design of the support frame 21 allows the drone's power arm to pass through it, facilitating reinforcement and protection of the power arm installation. First hinge members 22 are fixedly installed on both sides of the bottom of one end of the support frame 21. These first hinge members 22 are hinged to the first hinge seat 16. This hinge connection facilitates the connection between the support frame 21 and the mounting base 12, allowing the main support leg assembly 2 to be unfolded or folded outside the frame 11. Hinge holes 211 are provided on both sides of the other end of the support frame 21. The auxiliary support leg assembly 3 includes two support leg pieces 31. A connecting rod 32 is fixedly installed at the bottom between the two support leg pieces 31, and a second hinge 33 is fixedly installed on the inner side of the top of the two support leg pieces 31. The second hinge 33 is hinged to the hinge hole 211. By hinged to the hinge hole 211, it is easy to hinge the support leg piece 31 to the support leg frame 21, so that the support leg piece 31 can be unfolded or folded at one end of the support leg frame 21, thereby realizing the folding of the device and reducing the storage volume.

[0027] The mounting base 12 has a mounting hole 13 in the middle, which passes through the mounting base 12 and the frame 11. The mounting hole 13 facilitates the fixed installation of the drone's power arm and allows the control module and power module inside the frame 11 to be electrically connected to the power arm.

[0028] The mounting base 12 has a first mounting plate 14 fixedly mounted on its top, and a first threaded sleeve 15 fixedly mounted on the middle of the first mounting plate 14. The first mounting plate 14 and the first threaded sleeve 15 facilitate the fixation of the main support leg assembly 2 in its unfolded state.

[0029] The leg frame 21 is provided with a first hinge 22 and a second mounting plate 23 at one end. The second mounting plate 23 is located on the top of the first mounting plate 14. A first threaded rod 25 is inserted through the middle of the second mounting plate 23. The first threaded rod 25 is threadedly connected to the first threaded sleeve 15. The threaded connection between the first threaded rod 25 and the first threaded sleeve 15 facilitates the fixing of the second mounting plate 23 on the top of the first mounting plate 14, thereby fixing the main leg assembly 2 in the unfolded state and preventing the main leg assembly 2 from shaking during the use of the drone.

[0030] The first limiting ring 24 is fixedly installed on the top of the second mounting plate 23, and the first knob 27 is fixedly installed on the top of the first threaded rod 25. The first limiting groove 26 is opened on the outer side of the middle part of the first threaded rod 25. The first limiting groove 26 is located outside the first limiting ring 24. The setting of the first limiting ring 24 makes it easy to prevent the first threaded rod 25 from sliding out of the second mounting plate 23 when the main support leg assembly 2 is folded and stored. The first knob 27 makes it easy to rotate the first threaded rod 25 when locking the main support leg assembly 2 in the unfolded state, so that the first threaded rod 25 is threadedly connected to the first threaded sleeve 15, and can easily unlock the main support leg assembly 2 in the unfolded state.

[0031] The leg frame 21 is provided with a first hinge 22 and a second hinge seat 28 fixedly installed at one end of the bottom. The second hinge seat 28 is hinged to a support rod 29. A second threaded sleeve 210 is fixedly installed at one end of the support rod 29. The second hinge seat 28 facilitates the hinged fixing of the support rod 29 to the bottom of the leg frame 21.

[0032] A connecting seat 34 is rotatably connected between the two outrigger plates 31. A screw sleeve 35 is fixedly installed in the middle of the connecting seat 34. A second threaded rod 37 is inserted inside the screw sleeve 35. The second threaded rod 37 is threadedly connected to the second threaded sleeve 210. The threaded connection between the second threaded rod 37 and the second threaded sleeve 210 facilitates the support rod 29 to fix and support the middle of the auxiliary outrigger assembly 3, so that the outrigger frame 21, outrigger plates 31 and support rod 29 form a stable triangular structure, so that the outrigger plates 31 can provide stable support for the UAV and facilitate the formation of the UAV's landing outriggers.

[0033] The screw sleeve 35 has a second limiting ring 36 fixedly installed inside. The second threaded rod 37 has a second knob 39 fixedly installed at the end away from the second threaded sleeve 210. The second threaded rod 37 has a second limiting groove 38 on the outer side of the middle part. The second limiting groove 38 is located outside the second limiting ring 36. The setting of the second limiting ring 36 makes it easy to prevent the second threaded rod 37 from slipping out of the screw sleeve 35 when the auxiliary support leg assembly 3 is folded and stored. The second knob 39 makes it easy to rotate the second threaded rod 37 to tighten and fix the screw sleeve 35 to one end of the support rod 29, so that the support rod 29 can support and fix the auxiliary support leg assembly 3 in the unfolded state, and also makes it easy to unlock the auxiliary support leg assembly 3 in the unfolded state.

[0034] Specifically, the working principle of this large drone frame folding structure is as follows: During use, the frame 11 facilitates the internal mounting of the drone's control module and power module. The frame 11 can be a hollow quadrangular prism, hexagonal prism, or octagonal prism structure, allowing for easy integration with quadcopter, hexagonal, or octagonal drones. The mounting holes 13 facilitate the mounting of the drone's power arm, enabling electrical connection between the control module and power module inside the frame 11 and the power arm. The mounting base 12 facilitates the fixed mounting of the main support leg assembly 2 on the side of the frame 11 for securing the drone's power arm. The auxiliary support leg assembly 3 is positioned at one end of the main support leg assembly 2 for... The landing legs of the drone are formed by the leg frame 21, which allows the drone's power arm to pass through the frame 21, facilitating reinforcement and protection of the power arm installation. The first hinge 22 is hinged to the first hinge seat 16, allowing the leg frame 21 to be hinged to the mounting base 12, enabling the main leg assembly 2 to be deployed or folded outside the frame 11. The first mounting plate 14 and the first threaded sleeve 15 facilitate the fixation of the main leg assembly 2 in its deployed state. The first threaded rod 25 is threadedly connected to the first threaded sleeve 15, allowing the second mounting plate 23 to be fixedly mounted on top of the first mounting plate 14, thus securing the main leg assembly 2 in its deployed state and preventing damage during drone use. The first limiting ring 24 prevents the first threaded rod 25 from slipping out of the second mounting plate 23 when the main support leg assembly 2 is folded and stored. The first knob 27 allows the first threaded rod 25 to be rotated when the main support leg assembly 2 is locked in the unfolded state, so that the first threaded rod 25 is threadedly connected to the first threaded sleeve 15, and the main support leg assembly 2 can be easily unlocked in the unfolded state. The second hinge 33 is hinged to the hinge hole 211, which facilitates the hinge of the support leg plate 31 to the support leg frame 21, so that the support leg plate 31 can be unfolded or folded at one end of the support leg frame 21, thereby folding the device and reducing its storage volume. The second hinge seat 28 facilitates the hinge fixing of the support rod 29 to the bottom of the support leg frame 21. The second threaded rod 37 is threadedly connected to the second threaded sleeve 210, which facilitates the support rod 29 to fix and support the middle part of the auxiliary leg assembly 3. This makes the leg frame 21, the leg piece 31 and the support rod 29 form a stable triangular structure, so that the leg piece 31 can provide stable support for the UAV and facilitate the formation of the UAV's landing legs. The second limiting ring 36 is set to prevent the second threaded rod 37 from slipping out of the screw sleeve 35 when the auxiliary leg assembly 3 is folded and stored. The second knob 39 makes it easy to rotate the second threaded rod 37 to tighten and fix the screw sleeve 35 to one end of the support rod 29, so that the support rod 29 can support and fix the auxiliary leg assembly 3 in the unfolded state, and also makes it easy to unlock the auxiliary leg assembly 3 in the unfolded state.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A folding frame structure for a large unmanned aerial vehicle (UAV), characterized in that, The system includes a central frame assembly (1), which includes a frame (11). Each side of the frame (11) is fixedly fitted with a mounting base (12). A main support leg assembly (2) is provided on one side of the mounting base (12), and a secondary support leg assembly (3) is provided at one end of the main support leg assembly (2). A first hinge seat (16) is fixedly installed on both sides of the bottom of the mounting base (12). The main support leg assembly (2) includes a support leg frame (21). A first hinge member (22) is fixedly installed on both sides of the bottom of one end of the support leg frame (21). The first hinge member (22) is hinged to the first hinge seat (16). Hinge holes (211) are opened on both sides of the other end of the support leg frame (21). The secondary support leg assembly (3) includes two support leg pieces (31). A connecting rod is fixedly installed at the bottom between the two support leg pieces (31). The rod (32) and the two support legs (31) are fixedly installed with a second hinge (33) on the inner side of the top end. The second hinge (33) is hinged to the hinge hole (211). The support leg frame (21) is provided with a first hinge (22) and a second mounting plate (23) is provided at the top of one end. The second mounting plate (23) is located on the top of the first mounting plate (14). A first threaded rod (25) is inserted in the middle of the second mounting plate (23). The first threaded rod (25) is threadedly connected to the first threaded sleeve (15). A connecting seat (34) is rotatably connected between the two support legs (31). A screw sleeve (35) is fixedly installed in the middle of the connecting seat (34). A second threaded rod (37) is inserted inside the screw sleeve (35). The second threaded rod (37) is threadedly connected to the second threaded sleeve (210).

2. The large unmanned aerial vehicle frame folding structure according to claim 1, characterized in that, The mounting base (12) has a mounting hole (13) in the middle, and the mounting hole (13) passes through the mounting base (12) and the frame (11).

3. The large unmanned aerial vehicle frame folding structure according to claim 2, characterized in that, The first mounting plate (14) is fixedly installed on the top of the mounting base (12), and the first threaded sleeve (15) is fixedly installed in the middle of the first mounting plate (14).

4. A large unmanned aerial vehicle (UAV) frame folding structure according to claim 1, characterized in that, The second mounting plate (23) is fixedly mounted with a first limiting ring (24) on the top, and the first threaded rod (25) is fixedly mounted with a first knob (27) on the top. The first threaded rod (25) has a first limiting groove (26) on the outer side of the middle part, and the first limiting groove (26) is located outside the first limiting ring (24).

5. A large unmanned aerial vehicle (UAV) frame folding structure according to claim 4, characterized in that, The support leg frame (21) is provided with a first hinge (22) and a second hinge seat (28) is fixedly installed at one end of the bottom. The second hinge seat (28) is hinged to a support rod (29), and a second threaded sleeve (210) is fixedly installed at one end of the support rod (29).

6. A large unmanned aerial vehicle (UAV) frame folding structure according to claim 1, characterized in that, The screw sleeve (35) is fixedly installed with a second limiting ring (36), and the second threaded rod (37) is fixedly installed with a second knob (39) at the end away from the second threaded sleeve (210). A second limiting groove (38) is opened on the outer side of the middle part of the second threaded rod (37), and the second limiting groove (38) is located on the outer side of the second limiting ring (36).

Images