Drones

Abstract

The unmanned aerial vehicle comprises a body, arms, a diagonal support rod and a locking device; the body is columnar, the arms are multiple, the multiple arms are arranged at intervals around the center line of the body, the first end of each arm is rotatably connected with the body, and the rotation axis of the arm and the center line of the body form a preset included angle, so that the arm can be folded to the body; one end of the diagonal support rod is hingedly connected with the arm, the other end of the diagonal support rod is connected with the body through the locking device, in use, the other end of the diagonal support rod is locked at a preset position of the body by the locking device, and the diagonal support rod supports the arm; in disassembly, the locking device is released, the arm is folded to the body due to the rotatable connection between the arm and the body, and the space occupied by the folded unmanned aerial vehicle is reduced; compared with the integrated body and arm, after disassembly, the arm is folded to the body, the occupied space is small, the arm is not easy to be damaged or broken during transportation, and the portability is good.

Description

Technical Field

[0001] The present invention relates to aircraft equipment technology, and in particular to an unmanned aerial vehicle (UAV). Background Art

[0002] Drones (UAVs) are unmanned aircraft controlled by radio remote control devices and their own programs. They offer advantages such as maneuverability, rapid response, and unmanned flight. They are widely used in agriculture, forestry, military, and firefighting. In firefighting, drones are loaded with fire extinguishers and dropped at fire sites to extinguish them. In agriculture, drones are used to spray pesticides or sow seeds. Due to their immense practicality, UAVs are becoming a research hotspot.

[0003] At present, a drone includes a body with multiple arms evenly distributed along the circumference. The arms extend in a direction away from the center line of the body, and the arms and the body are formed as one piece; a propeller motor seat is provided at the end of each arm away from the center line of the body, and a propeller motor is installed on each propeller motor seat. A propeller is provided above each propeller motor, and an output shaft of the propeller motor is connected to the propeller for driving the propeller to rotate. When the propeller rotates, the air flow rate above the propeller is greater than that below, thereby generating upward lift, allowing the drone to fly.

[0004] However, with the above structure, after disassembly, the arms of the drone take up a large space, are inconvenient to store, are easily broken during transportation, and have poor portability. Summary of the Invention

[0005] An embodiment of the present invention provides a drone to solve the technical problems that after disassembly, the drone arms occupy a large space, are inconvenient to store, are easily broken during transportation, and have poor portability.

[0006] An embodiment of the present invention provides an unmanned aerial vehicle, comprising: a body, an arm, an oblique support rod and a locking device; the body is columnar, the arms are multiple, and the multiple arms are arranged at intervals around the center line of the body, the first end of each arm is rotatably connected to the body, and the rotation axis of the arm forms a preset angle with the center line of the body, so that the arm can be folded toward the body; one end of the oblique support rod is hinged to the arm, and the other end of the oblique support rod is connected to the body via the locking device, and the locking device is used to lock the other end of the oblique support rod at a preset position on the body.

[0007] The drone as described above, wherein the locking device includes a locking sleeve, which is mounted on the body, and the other end of the oblique support rod is hinged to the locking sleeve; the locking sleeve and the body are connected by a locking structure to prevent the locking sleeve from sliding along the side wall of the body.

[0008] In the drone as described above, the locking structure includes a hook provided on the body and a rotatable hanging ring provided on the locking sleeve; the hanging ring is hooked on the hook.

[0009] As described above, the locking structure further comprises a torsion arm, one end of which is hinged to the locking sleeve, the hanging ring is hinged to the torsion arm, and the hinge axis between the hanging ring and the torsion arm is located between the hinge axis between the torsion arm and the locking sleeve and the hook.

[0010] The drone as described above, wherein the drone further includes a transverse support rod, one end of which is hinged to one of the two adjacent arms, and the other end of which is detachably connected to the other of the two adjacent arms.

[0011] As described above, the drone, wherein the other end of the lateral support rod is provided with a mounting groove, the side wall of the mounting groove is provided with a telescopic hole, a locking column is slidably provided in the telescopic hole, the locking column is connected to the lateral support rod through a reset spring, and the reset spring is used to drive the locking column to extend out of the telescopic hole; a fixing column is provided on the other arm of the two adjacent arms, the fixing column is clamped in the mounting groove, and the locking column is used to prevent the fixing column from moving out of the mounting groove.

[0012] The drone as described above, wherein the drone further includes a landing gear, and the bottom end of the body is detachably connected to the landing gear.

[0013] As described above, the drone further includes a fixing sleeve, which is mounted on the body, and a connecting flange is provided on the fixing sleeve, and the end of the connecting flange facing away from the center line of the body is recessed inward to form a fixing groove; the landing gear includes a frame body and a rotatable fixed shaft connected to the frame body, and the fixed shaft is provided with a fixing threaded hole and a rotating bolt that cooperates with the fixing threaded hole, and the rotating bolt is clamped in the fixing groove.

[0014] As described above, the drone, wherein the landing gear includes a frame and at least three leg support rods, one end of each leg support rod is connected to the frame, and the other end of each leg support rod is located in the same horizontal plane to support the ground.

[0015] As described above, the drone, wherein the leg support rod includes a first sleeve having one end connected to the frame and a second sleeve sleeved inside the first sleeve, the first sleeve and the second sleeve are connected by a locking mechanism, and the locking mechanism is used to prevent the second sleeve from sliding inside the first sleeve.

[0016] The drone provided by the embodiment of the present invention includes: a body, an arm, an oblique support rod and a locking device; the body is cylindrical, the arms are multiple, and the multiple arms are arranged at intervals around the center line of the body, and the first end of each arm is rotatably connected to the body, and the rotation axis of the arm and the center line of the body form a preset angle so that the arm can be folded toward the body; one end of the oblique support rod is hinged to the arm, and the other end of the oblique support rod is connected to the body through a locking device. When in use, the locking device is used to lock the other end of the oblique support rod in a preset position of the body, and the oblique support rod supports the arm; when disassembling, the locking device is released. Due to the rotatable connection between the arm and the body, the arm is folded toward the body, preventing the arm from extending to the outside of the body, thereby reducing the space occupied by the folded drone; compared with the integral molding of the arm and the body, after disassembly, the arm is folded toward the body, taking up less space, being convenient for storage, not easily damaged or broken during transportation, and having good portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 Schematic diagram of the structure of the drone provided by the embodiment of the present invention Figure 1 ;

[0019] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0020] Figure 3 for Figure 1 Schematic diagram of the structure of the disassembled lateral support rod of the UAV;

[0021] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0022] Figure 5 A partial schematic diagram of a third connecting portion on a transverse support rod in a drone provided by an embodiment of the present invention;

[0023] Figure 6 for Figure 1 Schematic diagram of the structure of the drone after the arms are folded;

[0024] Figure 7 A schematic structural diagram of the landing gear of a UAV provided in an embodiment of the present invention;

[0025] Figure 8 A schematic structural diagram of a fixing sleeve in a drone provided by an embodiment of the present invention;

[0026] Figure 9 Schematic diagram of the structure of the drone provided by the embodiment of the present invention Figure 2 ;

[0027] Figure 10 for Figure 9 A partial enlarged view of point C in the middle;

[0028] Figure 11 for Figure 9 A partial enlarged view of point D in the middle.

[0029] Description of reference numerals:

[0030] 10: body;

[0031] 20: Arm;

[0032] 30: oblique support rod;

[0033] 40: propeller motor seat;

[0034] 50: propeller motor;

[0035] 60: propeller;

[0036] 70: locking sleeve;

[0037] 80: locking structure;

[0038] 801: hook;

[0039] 802: hanging loop;

[0040] 803: Torsion arm;

[0041] 90: transverse support rod;

[0042] 901: third connecting portion;

[0043] 9011: mounting slot;

[0044] 9012: Locking column;

[0045] 9013: return spring;

[0046] 9014: putter;

[0047] 100: connecting sleeve;

[0048] 1001: fixed column;

[0049] 1002: second fixing flange;

[0050] 1003: third fixing flange;

[0051] 110: landing gear;

[0052] 1101: frame;

[0053] 1102: fixed axis;

[0054] 1103: Leg support bar;

[0055] 1104: fixed support rod;

[0056] 1105: first casing;

[0057] 1106: second casing;

[0058] 120: fixed sleeve;

[0059] 1201: Connecting flange. DETAILED DESCRIPTION

[0060] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The following embodiments and features in the embodiments can be combined with each other unless there is a conflict.

[0061] First refer to Figure 1 and Figure 2 , Figure 1 Schematic diagram of the structure of the drone provided by the embodiment of the present invention Figure 1 ; Figure 2 for Figure 1 A partial enlarged view of the middle A. Figure 1 and Figure 2 As shown, the drone of this embodiment includes: a body 10, an arm 20, an oblique support rod 30 and a locking device; the body 10 is columnar, and there are multiple arms 20, which are arranged at intervals around the center line of the body 10, and the first end of each arm 20 is rotatably connected to the body 10, and the rotation axis of the arm 20 forms a preset angle with the center line of the body 10, so that the arm 20 can be folded toward the body 10; one end of the oblique support rod 30 is hinged to the arm 20, and the other end of the oblique support rod 30 is connected to the body 10 through a locking device, and the locking device is used to lock the other end of the oblique support rod 30 at a preset position of the body 10.

[0062] In this embodiment, the body 10 can be cylindrical or prismatic; the end of the body 10 facing the ground is the bottom end of the body 10, and the end of the body 10 facing away from the ground is the top end of the body 10. The arm 20 is rotatably connected to the body 10, with the end of the arm 20 facing the body 10 being the first end of the arm 20, and the end of the arm 20 facing away from the body 10 being the second end of the arm 20. The arm 20 can be cylindrical or plate-shaped, as long as it extends from the body 10 away from the centerline of the body 10.

[0063] The body 10 is provided with a plurality of first rotating parts, which are arranged on the side wall of the body 10 at intervals around the center line of the body 10. The first end of the arm 20 is provided with a second rotating part, and the first rotating part cooperates with the second rotating part to rotate the arm 20.

[0064] Optionally, the first rotating portion is hingedly connected to the second rotating portion; the first rotating portion and the second rotating portion are both hinged plates, the first rotating portion is provided with a first hinge hole, the second rotating portion is provided with a second hinge hole, and the hinge shaft is passed through the first hinge hole and the second hinge hole, so that the machine arm 20 rotates about the hinge shaft. Alternatively, the first rotating portion is a shaft sleeve, and the second rotating portion includes a first connecting rod and a second connecting rod connected perpendicularly, the end of the first connecting rod facing away from the second connecting rod is connected to the first end of the machine arm 20, and the end of the second connecting rod facing away from the first connecting rod passes through the shaft sleeve and rotates relative to the shaft sleeve, so that the machine arm 20 rotates about the second connecting rod; further, a stop portion is provided at the end of the second connecting rod facing away from the first connecting rod to prevent the second connecting rod from separating from the shaft sleeve, wherein the stop portion can be a regular shape such as a cylinder or a sphere, or can be other irregular shapes, as long as the cross-sectional area of ​​the stop portion is larger than the cross-sectional area of ​​the shaft sleeve, so that the end of the second connecting rod facing away from the first connecting rod cannot escape from the shaft sleeve. Among them, the first rotating part and the body 10 can be connected by welding or integrally formed by casting, and this embodiment does not limit this; the connection method between the second rotating part and the arm 20 is similar to the connection method between the first rotating part and the body 10, and will not be repeated here.

[0065] The preset angle between the rotation axis of the arm 20 and the center line of the body 10 can be 90 degrees, 75 degrees, or 60 degrees, as long as the arm 20 can be folded toward the body 10, and this embodiment does not impose any restrictions on this; illustratively, the rotation axis of the arm 20 can be skewed with the center line of the body 10, and the rotation axis of the arm 20 is coplanar with the center line of the arm 20. At this time, the preset angle is 90 degrees, and the rotation axis of the arm 20 is perpendicular to the center line of the body 10, and at the same time perpendicular to the center line of the arm 20, so that the arm 20 flips along the direction perpendicular to the center line of the body 10; when the preset angle is 75 degrees or 60 degrees, the rotation axis of the arm 20 can be skewed with the center line of the body 10, and the rotation axis of the arm 20 is skewed with the center line of the body 10, and at the same time perpendicular to the center line of the arm 20, so that the arm 20 flips along the direction inclined to the center line of the body 10. It is worth noting that, the smaller the preset angle is, the greater the inclination angle between the arm 20 and the body 10 will be after the arm 20 is folded toward the body 10 .

[0066] Each arm 20 is fitted with a connecting sleeve 100. The connecting sleeve 100 can be round or square, as long as it fits the arm 20. A first fixing flange is provided on the sidewall of the connecting sleeve 100. The first fixing flange has an open slot parallel to the centerline of the connecting sleeve 100. The first fixing flange has a first through hole and a second through hole perpendicular to the centerline of the slot. The centerlines of the first and second through holes are collinear. There are multiple diagonal support rods 30, each with a first connecting portion at one end. The first connecting portion has a third through hole, the centerline of which is perpendicular to the centerline of the diagonal support rod 30. The first connecting portion of the oblique support rod 30 is embedded in the open groove and hinged to the first fixing flange. The hinge axis passes through the first through hole, the third through hole, and the second through hole in sequence, so that the oblique support rod 30 is hinged to the machine arm 20 through the connecting sleeve 100 and rotates around the hinge axis. The hinge axis is perpendicular to the centerline of the machine arm 20 and is also perpendicular to the centerline of the oblique support rod 30. Of course, the oblique support rod 30 can also be hinged to the machine arm 20 in other ways.

[0067] The connecting sleeve 100 and the arm 20 have an interference fit, so that the connecting sleeve 100 is fixed on the arm 20, preventing the connecting sleeve 100 from sliding along the arm 20, thereby driving the oblique support rod 30 hinged to the connecting sleeve 100 to slide along the arm 20. Optionally, the cross-sectional area of ​​the arm 20 gradually decreases from the point of engagement with the connecting sleeve 100 to the second end, facilitating installation and removal of the connecting sleeve 100.

[0068] In one achievable embodiment, the locking device includes a plurality of vertical chutes disposed on the housing 10, wherein the centerline of each vertical chute is parallel to the centerline of the housing 10, and a first elastic protrusion is disposed on the sidewall of each vertical chute; a clamping block is disposed at the other end of each oblique support rod 30, which slides within the vertical chutes, and a first recessed hole is disposed on the sidewall of the clamping block along the centerline of the vertical chutes, wherein the first elastic protrusion is retained within the first recessed hole. It is worth noting that the first elastic protrusion is flush with a preset position of the housing 10. When the first elastic protrusion is retained within the first recessed hole, the clamping block is retained within the vertical chutes, and the other end of the oblique support rod 30 is locked to the preset position of the housing 10.

[0069] Among them, the preset position of the body 10 means that when the other end of the oblique support rod 30 is locked in this position, one end of each oblique support rod 30 supports each arm 20, so that each arm 20 is roughly parallel to the ground, and the arm 20 is unfolded at this time; this embodiment does not limit the preset position of the body 10, and the preset position can be the top end of the body 10 or the bottom end of the body 10.

[0070] When folding, the oblique support rod 30 is pulled to disengage the first elastic protrusion from the first recessed hole, and the card block slides in the vertical slide groove, causing the oblique support rod 30 to slide along the center line of the body 10, thereby driving the arm 20 to rotate to fold toward the body 10.

[0071] In another possible implementation, the locking device includes a locking sleeve 70 that is mounted on the housing 10. The other end of the oblique support rod 30 is hingedly connected to the locking sleeve 70. The locking sleeve 70 and the housing 10 are connected by a locking structure 80 to prevent the locking sleeve 70 from sliding along the sidewall of the housing 10. Compared with the previous possible implementation, this avoids the need for multiple vertical slots in the housing 10, which would reduce the strength of the housing 10. The locking sleeve 70 can be circular or shaped, as long as it is compatible with the housing 10. The hinge axis between the other end of the oblique support rod 30 and the locking sleeve 70 is perpendicular to both the centerline of the housing 10 and the centerline of the oblique support rod 30.

[0072] Optionally, the locking structure 80 may include a first threaded through-hole provided on the locking sleeve 70, and a locking bolt screwed into the first threaded through-hole, wherein the centerline of the first threaded through-hole is perpendicular to the centerline of the body 10. Before the drone takes flight, the arm 20 is unfolded and the locking bolt is screwed so that the end of the locking bolt facing the body 10 abuts against the side wall of the body 10, thereby preventing the locking sleeve 70 from sliding along the side wall of the body 10. After the drone flight ends, the locking bolt is screwed so that the end of the locking bolt facing the body 10 is separated from the body 10, and the locking sleeve 70 slides along the side wall of the body 10, thereby driving the arm 20 to rotate and fold toward the body 10.

[0073] Continue to refer to Figure 2 Preferably, the locking structure 80 includes a hook 801 provided on the body 10, and a hanging ring 802 rotatably provided on the locking sleeve 70; the hanging ring 802 is hooked on the hook 801. By hooking the hook 801 on the hanging ring 802 to achieve locking of the locking sleeve 70, the locking and unlocking operations of the locking sleeve 70 are relatively convenient, and quick disassembly and assembly can be achieved. In addition, compared with the previous implementation, the locking structure 80 is prevented from abutting against the side wall of the body 10, rubbing against the side wall of the body 10, and causing damage to the body 10. Among them, the hook 801 can be screwed to the body 10, or can be welded to the body 10, or can be snapped into the body 10, and this embodiment does not impose any restrictions on this. It is worth noting that the hook 801 is flush with the preset position of the body 10.

[0074] Since the hook 801 is bent, it is difficult for the operator to remove the hanging ring 802 hooked on the hook 801; Figure 2 Taking the illustrated orientation as an example, the locking structure 80 further includes a torsion arm 803, one end of which is hinged to the locking sleeve 70, with the hinge axis between the torsion arm 803 and the locking sleeve 70 being perpendicular to the centerline of the body 10. A hook 802 is hinged to the torsion arm 803, with the hinge axis between the hook 801 and the torsion arm 803 being located between the hinge axis between the torsion arm 803 and the locking sleeve 70. With this arrangement, when the drone ends flight and folds its arm 20, the torsion arm 803 is first rotated away from the body 10, thereby driving the hook 802, which is hinged to the torsion arm 803, to move upward parallel to the centerline of the body 10, disengaging the hook 802 from the hook 801. The hook 802 is then rotated away from the centerline of the body 10, causing the locking sleeve 70 to slide downward along the sidewall of the body 10, thereby driving the arm 20 to rotate and fold toward the body 10.

[0075] Specifically, a second threaded through hole and a fixing stud are provided on the torsion arm 803. The center line of the second threaded through hole is parallel to the center line of the body 10, and the fixing stud is screwed into the second threaded through hole; the hanging ring 802 is hinged to the fixing stud, and the hinge axis of the hanging ring 802 is perpendicular to the center line of the body 10 and parallel to the hinge axis of the torsion arm 803 and the locking sleeve 70.

[0076] Optionally, there may be multiple locking structures 80. When one of the locking structures 80 fails, the other locking structures 80 can prevent the locking sleeve 70 from sliding along the side wall of the body 10, thereby preventing the locking sleeve 70 from sliding due to the failure of the locking structure 80 during flight, causing the arm 20 to fold toward the body 10.

[0077] Continue to refer to Figure 1 ,by Figure 1Taking the illustrated position as an example, a propeller motor mount 40 is provided at the second end of each arm 20. A propeller motor 50 is mounted above each propeller motor mount 40. A propeller 60 is mounted above each propeller motor 50. The output shaft of the propeller motor 50 is in driving connection with the propeller 60. The drone also includes a power supply mounted on the body 10, which provides electrical energy to the propeller motor 50, thereby driving the propeller 60 to rotate. When the propeller 60 rotates, the air velocity above the propeller 60 is greater than that below it, thereby generating upward lift. This lift counteracts the drone's gravity, enabling the drone to fly.

[0078] Optionally, the body 10, arms 20, and diagonal support rods 30 can be made of metal materials such as aluminum alloy or carbon fiber. Compared to metal materials such as aluminum alloy, carbon fiber is lighter, thereby reducing the weight of the drone and the lift force used to resist gravity, thereby reducing the power consumption of the drone. Of course, the body 10, arms 20, and diagonal support rods 30 can also be made of composite materials such as plastic. Optionally, the body 10, arms 20, and diagonal support rods 30 are all hollow to further reduce the weight of the drone. When the body 10 is hollow, the power supply can be installed inside the body 10.

[0079] In this embodiment, multiple arms 20 are arranged at equal intervals around the centerline of the body 10 to ensure uniform force distribution across the body 10. Each arm 20 is connected to the body 10 in the same manner, and each arm 20 is provided with an oblique support rod 30 to ensure stability when deployed.

[0080] The drone provided in this embodiment includes: a body 10, an arm 20, an oblique support rod 30 and a locking device; the body 10 is cylindrical, and the arms 20 are multiple, and the multiple arms 20 are arranged around the center line of the body 10 at intervals, and the first end of each arm 20 is rotatably connected to the body 10, and the rotation axis of the arm 20 is at a preset angle to the center line of the body 10, so that the arm 20 can be folded toward the body 10; one end of the oblique support rod 30 is hinged to the arm 20, and the other end of the oblique support rod 30 is connected to the body 10 through the locking device. , use the locking device to lock the other end of the oblique support rod 30 at the preset position of the body 10, and the oblique support rod 30 supports the arm 20; when disassembling, the locking device is released, and due to the rotatable connection between the arm 20 and the body 10, the arm 20 is folded toward the body 10, preventing the arm 20 from extending outside the body 10, thereby reducing the space occupied by the folded drone; compared with the integral molding of the arm 20 and the body 10, after disassembly, the arm 20 folds toward the body 10, taking up less space and being convenient for storage. The arm 20 is not easily damaged or broken during transportation, and has good portability.

[0081] Reference Figures 1 to 6 , Figure 3 for Figure 1 Schematic diagram of the structure of the disassembled lateral support rod of the UAV; Figure 4 for Figure 3 A partial enlarged view of point B in the middle; Figure 5 A partial schematic diagram of a third connecting portion on a transverse support rod in a drone provided by an embodiment of the present invention; Figure 6 for Figure 1 Schematic diagram of the structure of the drone after the arms are folded. Preferably, the drone also includes a transverse support rod 90, one end of the transverse support rod 90 is hinged to one of the two adjacent arms 20, and the other end of the transverse support rod 90 is detachably connected to the other of the two adjacent arms 20. The material of the transverse support rod 90 is similar to that of the body 10, and this embodiment will not be repeated here. By arranging the transverse support rod 90 between the two adjacent arms 20, a transverse support force is provided to the two adjacent arms 20, further improving the stability of the arms 20 when deployed.

[0082] A second fixing flange 1002 and a third fixing flange 1003 are also provided on the connecting sleeve 100, and the second fixing flange 1002 and the third fixing flange 1003 are similar in structure to the first fixing flange; a second connecting portion is provided at one end of the transverse support rod 90, and the structure of the second connecting portion is similar to that of the first connecting portion; the second connecting portion is hinged to the second fixing flange 1002, so that one end of the transverse support rod 90 is hinged to the connecting sleeve 100 provided on an arm 20, and the hinge axis is perpendicular to the center line of an arm 20; wherein, the hinge method of the second connecting portion and the second fixing flange 1002 is similar to the hinge method of the first connecting portion and the first fixing flange, and this embodiment will not be repeated here.

[0083] The other end of the transverse support rod 90 is detachably connected to the third fixing flange 1003 of the connecting sleeve 100 provided on the other arm 20. The detachable connection includes but is not limited to the following possible implementations:

[0084] In one conceivable embodiment, a first internal thread is provided on the sidewall of the second through-hole on the third fixing flange 1003. A third connecting portion 901 is provided at the other end of the transverse support rod 90. A fourth through-hole is formed in the third connecting portion 901, the centerline of which is perpendicular to the centerline of the transverse support rod 90. The third connecting portion 901 is embedded in the open slot of the third fixing flange 1003 and is connected to the third fixing flange 1003 via a fixing bolt. The fixing bolt passes through the first through-hole on the third fixing flange 1003 and the fourth through-hole on the transverse support rod 90, respectively, and engages with the first internal thread on the second through-hole. During disassembly, the fixing bolt is first tightened to disengage the fixing bolt from the fourth through-hole. The transverse support rod 90 is then rotated to disengage the third connecting portion 901 from the open slot on the third fixing flange 1003.

[0085] Continue to refer to Figure 4 ,by Figure 4 Taking the shown orientation as an example, in another feasible method, a mounting groove 9011 is provided at the other end of the transverse support rod 90, and a telescopic hole is provided on the side wall of the mounting groove 9011. A locking column 9012 is slidably provided in the telescopic hole. The locking column 9012 is connected to the transverse support rod 90 through a return spring 9013. The return spring 9013 is used to drive the locking column 9012 to extend out of the telescopic hole; a fixing column 1001 is provided on the other arm 20 of the two adjacent arms 20, and the fixing column 1001 is clamped in the mounting groove 9011, and the locking column 9012 is used to prevent the fixing column 1001 from moving out of the mounting groove 9011. The centerline of the telescopic hole is parallel to the centerline of the transverse support rod 90, allowing the locking column 9012 to move in a direction parallel to the centerline of the transverse support rod 90. The fixing column 1001 is set on the third fixing flange 1003. The fixing column 1001 passes through the first and second through holes on the third fixing flange 1003 in sequence and forms an interference fit with the first and second through holes. When the drone is finished flying and the transverse support rod 90 is removed, it is only necessary to push the locking column 9012 to compress the return spring 9013, causing the locking column 9012 to slide within the telescopic hole. Then, the transverse support rod 90 is rotated to disengage the fixing column 1001 from the mounting slot 9011. The other end of the transverse support rod 90 is then separated from the other arm 20, making the disassembly process simple.

[0086] When the return spring 9013 is in a compressed state, part of the locking column 9012 extends from the telescopic hole to play a guiding role; when the return spring 9013 is in an initial state, part of the locking column 9012 slides in the telescopic hole to prevent the locking column 9012 from completely disengaging from the telescopic hole.

[0087] Optionally, a push rod 9014 is provided on the side wall of the locking post 9012, and a locking slot is provided at the other end of the transverse support rod 90, which is connected to the telescopic hole. The push rod 9014 extends from the side wall of the locking post 9012 into the locking slot and then extends out of the locking slot. To remove the transverse support rod 90, the push rod 9014 is pushed, causing it to slide within the locking slot, thereby driving the locking post 9012 to slide within the telescopic hole, making the operation convenient.

[0088] The first fixing flange, the second fixing flange 1002, and the third fixing flange 1003 are spaced apart on the side wall of the connecting sleeve 100; this embodiment does not impose any restrictions on the spacing, as long as the first fixing flange is hingedly connected to one end of the oblique support rod 30, the second fixing flange 1002 is hingedly connected to one end of one transverse support rod 90, and the third fixing flange 1003 is removably connected to the other end of the other transverse support rod 90. The first fixing flange 1002, the second fixing flange 1002, and the third fixing flange 1003 can be connected to the connecting sleeve 100 by welding or screwing, or can be integrally formed by casting.

[0089] Reference Figure 1-Figure 7 , Figure 7 This is a schematic diagram of the structure of the landing gear of the UAV provided by the embodiment of the present invention. Figure 7 As shown, based on the above embodiment, the drone also includes a landing gear 110, and the bottom end of the body 10 is detachably connected to the landing gear 110. On the one hand, by providing the landing gear 110, when the drone lands, the landing gear 110 abuts against the ground to support other components of the drone. On the other hand, the landing gear 110 is detachably connected to the body 10. After removal, the landing gear 110 and the body 10 can be stored separately, improving portability.

[0090] Optionally, the landing gear 110 is connected to the bottom end of the body 10 by means of a snap connection; or, by means of a screw connection. Figures 8-10 , Figure 8 A schematic structural diagram of a fixing sleeve in a drone provided by an embodiment of the present invention; Figure 9 Schematic diagram of the structure of the drone provided by the embodiment of the present invention Figure 2 ; Figure 10 for Figure 9A partial enlarged view of point C in the middle. A preferred embodiment of this embodiment is that the drone further includes a fixing sleeve 120, which is mounted on the body 10. The fixing sleeve 120 is provided with a connecting flange 1201, and the end of the connecting flange 1201 facing away from the centerline of the body 10 is recessed inward to form a fixing groove. The landing gear 110 includes a frame 1101 and a rotatable fixed shaft 1102 connected to the frame 1101. The fixed shaft 1102 is provided with a fixing threaded hole and a rotating bolt that cooperates with the fixing threaded hole, and the rotating bolt is locked in the fixing groove. With this arrangement, the landing gear 110 can be installed and removed from the body 10 by simply rotating the rotating bolt, which is simple to operate and can achieve quick installation and removal.

[0091] The fixing sleeve 120 can be round or square, as long as it fits the side wall of the body 10. The fixing sleeve 120 is provided with an opening, with protrusions at each end of the opening. The protrusion at one end of the fixing sleeve 120 is provided with a fifth through-hole, and the protrusion at the other end of the fixing sleeve 120 is provided with a third threaded through-hole. The fifth through-hole and the third threaded through-hole are arranged collinearly and perpendicular to the centerline of the fixing sleeve 120. The two ends of the fixing sleeve 120 are connected by fastening bolts, which pass through the fifth through-hole and the third threaded through-hole in sequence and engage with nuts. With this arrangement, when the landing gear 110 is connected to the body 10, the fastening bolts are tightened to secure the fixing sleeve 120 to the body 10. When the landing gear 110 is removed, the fastening bolts are tightened to loosen the fixing sleeve 120 from the body 10.

[0092] The connection method between the connecting flange 1201 and the fixing sleeve 120 is similar to the connection method between the first fixing flange and the connecting sleeve 100, and will not be repeated here; a fixing groove is provided on the connecting flange 1201, wherein the center line of the fixing groove is parallel to the center line of the fixing sleeve 120; this embodiment does not limit the size of the fixing groove, as long as the fixing groove cooperates with the rotating bolt.

[0093] The frame 1101 is provided with a mounting flange, which is provided with a sixth through-hole perpendicular to the centerline of the frame 1101. The fixed shaft 1102 is disposed within the sixth through-hole and rotates relative to the sixth through-hole. The fixed shaft 1102 is provided with a fixed threaded hole, the centerline of which is perpendicular to the centerline of the fixed shaft 1102, allowing a rotating bolt to be perpendicularly connected to the fixed shaft 1102. One end of the rotating bolt engages with the fixed threaded hole, and the other end of the rotating bolt is retained in the fixing slot, thereby connecting the landing gear 110 to the fuselage 10 and preventing the landing gear 110 from sliding along the centerline of the fuselage 10.

[0094] Optionally, the rotating bolt is further provided with a trigger and a stop flange. The trigger is hinged to one end of the rotating bolt that is away from the fixed axis 1102, with the hinge axis being perpendicular to the centerline of the rotating bolt and parallel to the centerline of the fixed axis 1102. The stop flange is sleeved on the rotating bolt and is used to abut the connecting flange 1201 when the rotating bolt is locked in the fixing groove. The stop flange is located between the trigger and the fixed axis 1102. By providing the trigger and the stop flange, when in use, the other end of the rotating bolt is locked in the fixing groove, and the trigger is turned, which drives the rotating bolt to rotate, causing the stop flange to abut against the connecting flange 1201, thereby tightening the connection between the landing gear 110 and the body 10. When disassembling, the trigger is first turned, which drives the rotating bolt to rotate, causing the stop flange to disengage from the connecting flange 1201. Then, the trigger is pulled, causing the rotating bolt to rotate about the fixed axis 1102 and disengage from the fixing groove, thereby separating the landing gear 110 from the body 10. The operation is simple.

[0095] There can be multiple connecting flanges 1201, and the multiple connecting flanges 1201 are arranged at intervals around the center line of the fixing sleeve 120, and each connecting flange 1201 is provided with a fixing groove parallel to the center line direction of the fixing sleeve 120; there can be multiple mounting flanges and fixed shafts 1102, and the multiple mounting flanges are arranged at intervals around the center line of the frame 1101; each fixed shaft 1102 is rotatably connected to the frame 1101, and the rotation axis of each fixed shaft 1102 is perpendicular to the center line of the frame 1101; each fixed shaft 1102 is provided with a fixing threaded hole and a rotating bolt that cooperates with the fixing threaded hole, each rotating bolt rotates around the fixing shaft 1102, and each rotating bolt can be clamped in a fixing groove after rotation.

[0096] like Figure 7 and Figure 9 As shown, a delivery compartment is provided on the frame 1101. The delivery compartment can be a regular shape such as a cylinder or prism, or can be other irregular shapes, which are not limited in this embodiment. For example, the drone provided in this embodiment can be used in the firefighting field, and the delivery compartment is used to accommodate fire extinguishing balls or water; the drone provided in this embodiment can also be used in the agricultural field, and the delivery compartment is used to accommodate seeds, pesticides, or liquid fertilizer.

[0097] The ground-facing end of frame 1101 is equipped with a hatch for sealing the launch bay. The hatch is hinged to frame 1101, and a groove is provided on the end of the hatch facing away from the hinge. Frame 1101 also includes a servo motor, a first connecting rod, a second connecting rod, and a slider. The first connecting rod, the second connecting rod, and the slider form a slider-crank mechanism. The output shaft of the servo motor is connected to the first connecting rod to drive the first connecting rod to rotate. A pin is provided on the side wall of the slider, which is locked in the groove to prevent the hatch from rotating. When the drone is launched, the servo motor activates, driving the first connecting rod to rotate. The first connecting rod drives the slider through the second connecting rod, causing the pin on the slider to disengage from the groove. The hatch rotates about the hinge axis with the frame, opening the launch bay.

[0098] Continue to refer to Figures 1-9 Based on the above embodiment, the landing gear 110 includes at least three leg support rods 1103, one end of each leg support rod 1103 is connected to the frame 1101, and the other end of each leg support rod 1103 is located in the same horizontal plane to support the ground. Among them, each leg support rod 1103 is arranged at intervals around the center line of the frame 1101, and one end of each leg support rod 1103 can be welded to the frame 1101, or it can be clamped or screwed to the frame 1101. By providing the leg support rods 1103, when the UAV lands, the leg support rods 1103 support the frame 1101 and other components of the UAV.

[0099] Reference Figure 11 , Figure 11 for Figure 9 A partial enlarged view of point D in the middle. Preferably, leg support bar 1103 includes a first sleeve 1105 connected to frame 1101 at one end, and a second sleeve 1106 sleeved within first sleeve 1105. First sleeve 1105 and second sleeve 1106 are connected by a locking mechanism that prevents second sleeve 1106 from sliding within first sleeve 1105. By sleeved second sleeve 1106 within first sleeve 1105, leg support bar 1103 can be retracted. When retracted, leg support bar 1103 occupies minimal space, making it easy to store.

[0100] Optionally, the locking mechanism includes a second recessed hole provided at one end of the first sleeve 1105 facing the frame 1101 and a second elastic protrusion provided on the side wall of the second sleeve 1106, the second elastic protrusion being locked in the second recessed hole; and a third recessed hole cooperating with the second elastic protrusion is further provided at the end of the first sleeve 1105 facing away from the frame 1101. During use, the second sleeve 1106 is pulled so that the second elastic protrusion is locked in the third recessed hole, and the end of the second sleeve 1106 facing away from the first sleeve 1105 rests on the ground. During disassembly, the second sleeve 1106 is pushed so that the second elastic protrusion is separated from the third recessed hole, and the second sleeve 1106 slides inside the first sleeve 1105 toward the frame 1101 until the second elastic protrusion is locked in the second recessed hole. The second sleeve 1106 is then sleeved into the first sleeve 1105, and the leg support rod 1103 is retracted.

[0101] Alternatively, the locking mechanism includes a second internal thread arranged on the inner side wall of the end of the first sleeve 1105 facing away from the frame body 1101 and an external thread arranged on the end of the second sleeve 1106 facing the first sleeve 1105, and the external thread cooperates with the second internal thread; the end of the first sleeve 1105 facing away from the frame body 1101 is also provided with a third internal thread that cooperates with the external thread.

[0102] Of course, the leg support rod 1103 may also include a third sleeve, which is sleeved within the second sleeve 1106. The third sleeve and the second sleeve 1106 are connected by a locking mechanism, which is used to prevent the third sleeve from sliding within the second sleeve 1106. In addition, the landing gear 110 also includes a fixed support rod 1104, which is connected to two adjacent leg support rods 1103 to provide lateral support for the leg support rods 1103. The leg support rods 1103 and the fixed support rod 1104 can be made of plastic or carbon fiber, which is not limited in this embodiment.

[0103] The disassembly process of the drone provided in this embodiment is as follows:

[0104] First, remove the transverse support rod 90. Push the locking post 9012 at the other end of the transverse support rod 90 to compress the return spring 9013, allowing the locking post 9012 to slide within the telescopic hole. Then, rotate one end of the transverse support rod 90 to disengage the fixing post 1001 from the mounting slot 9011. Continue rotating the transverse support rod 90 until it rotates around the hinge axis with the arm 20.

[0105] Next, remove the fixing sleeve 120 to separate the landing gear 110 from the fuselage 10. First, tighten the trigger to drive the rotating bolt to rotate, so that the stop flange and the connecting flange 1201 are separated; then pull the trigger to make the rotating bolt rotate around the fixing axis 1102 and disengage from the fixing groove.

[0106] Next, the locking device is removed, allowing the oblique support rod 30 to slide along the side wall of the body 10, and the arm 20 to fold toward the body 10. First, the torsion arm 803 is rotated, thereby driving the hanging ring 802 hinged to the torsion arm 803 to move in a direction parallel to the centerline of the body 10, and the hanging ring 802 is disengaged from the hook 801; then the hanging ring 802 is rotated so that it faces away from the centerline of the body 10.

[0107] Then, the leg support rod 1103 is retracted. The second sleeve 1106 is pushed to separate the second elastic protrusion from the third recessed hole. The second sleeve 1106 is further pushed, and the second sleeve 1106 slides inside the first sleeve 1105 toward the frame 1101 until the second elastic protrusion is locked in the second recessed hole and the second sleeve 1106 is inserted into the first sleeve 1105.

[0108] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0109] In the present invention, unless otherwise expressly provided, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integral molding; mechanical connections, electrical connections, or communication between them; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly provided. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drone, characterized in that: include: A machine body, a machine arm, an oblique support rod, and a locking device; the machine body is cylindrical, the machine arm is multiple, and the multiple arms are arranged at intervals around the center line of the machine body, the first end of each of the arms is rotatably connected to the machine body, and the rotation axis of the arm forms a preset angle with the center line of the machine body, so that the arm can be folded toward the machine body; One end of the oblique support rod is hinged to the machine arm, and the other end of the oblique support rod is connected to the machine body through the locking device, and the locking device is used to lock the other end of the oblique support rod at a preset position on the machine body; The drone further includes a transverse support rod, one end of which is hinged to one of the two adjacent arms, and the other end of which is detachably connected to the other of the two adjacent arms; The other end of the transverse support rod is provided with a mounting groove, and a telescopic hole is provided on the side wall of the mounting groove. A locking column is slidably provided in the telescopic hole, and the locking column is connected to the transverse support rod through a return spring, and the return spring is used to drive the locking column to extend out of the telescopic hole; a fixing column is provided on the other arm of the two adjacent arms, and the fixing column is clamped in the mounting groove, and the locking column is used to prevent the fixing column from moving out of the mounting groove.

2. The drone according to claim 1, characterized in that The locking device includes a locking sleeve, which is mounted on the body. The other end of the oblique support rod is hinged to the locking sleeve. The locking sleeve is connected to the body through a locking structure to prevent the locking sleeve from sliding along the side wall of the body.

3. The drone according to claim 2, characterized in that The locking structure includes a hook arranged on the body and a hanging ring rotatably arranged on the locking sleeve; the hanging ring is hooked on the hook.

4. The drone according to claim 3, characterized in that The locking structure also includes a torsion arm, one end of which is hinged to the locking sleeve, the hanging ring is hinged to the torsion arm, and the hinge axis of the hanging ring and the torsion arm is located between the hinge axis of the torsion arm and the locking sleeve and the hook.

5. The drone according to any one of claims 1 to 4, characterized in that: The UAV further includes a landing gear, and the bottom end of the body is detachably connected to the landing gear.

6. The drone according to claim 5, characterized in that: The drone also includes a fixing sleeve, which is mounted on the body and is provided with a connecting flange. The end of the connecting flange that is away from the center line of the body is recessed inward to form a fixing groove. The landing gear includes a frame body and a rotatable fixed shaft connected to the frame body. The fixed shaft is provided with a fixing threaded hole and a rotating bolt that cooperates with the fixing threaded hole, and the rotating bolt is clamped in the fixing groove.

7. The drone according to claim 5, characterized in that: The landing gear includes a frame body and at least three leg support rods, one end of each leg support rod is connected to the frame body, and the other end of each leg support rod is located in the same horizontal plane to support the ground.

8. The drone according to claim 7, characterized in that: The leg support rod includes a first sleeve connected to the frame at one end and a second sleeve sleeved inside the first sleeve. The first sleeve and the second sleeve are connected by a locking mechanism, and the locking mechanism is used to prevent the second sleeve from sliding inside the first sleeve.

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