Tilting four-rotor unmanned aerial vehicle

Abstract

The utility model provides a tiltable four-rotor unmanned aerial vehicle. The tiltable four-rotor unmanned aerial vehicle comprises a foot stool, the mounting structure is fixed at the top end of the foot stand, the mounting structure comprises four center plates, supporting columns and fixing blocks, the four center plates are supported by the supporting columns and are fixed in sequence, and the fixing blocks are fixed at the edges of one surfaces of the two center plates in the middle; one end of the support structure is fixed inside the center plate through the fixing block; the flight structure is mounted on the side wall of the top end of the steering engine; the protection structure is mounted on the side wall of a shell fixed to the outer side of the motor; the tilting quad-rotor unmanned aerial vehicle provided by the utility model has the advantages that the tilting quad-rotor unmanned aerial vehicle can tilt through the rotors, has the maneuverability superior to that of the conventional layout quad-rotor, is compact and stable in overall layout, and can prevent the rotors from hurting people.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a tiltable quad-rotor unmanned aerial vehicle. Background Art

[0002] A drone is an unmanned aerial vehicle that is controlled by a radio remote control device or an onboard computer program control system. Since small drones have a variety of functions such as photography, transportation, rescue, lighting, etc., they are increasingly developed in real life.

[0003] Some existing drones cannot tilt their rotors during use, and the aircraft does not have the maneuverability beyond the conventional quad-rotor layout; secondly, the overall layout is not compact and stable enough;

[0004] In daily life in urban areas, drone injuries often occur. The reason is that during the flight of the drone, it loses control or is improperly operated, causing the drone to fly to a place where people are, and then its rotor will cause harm to the human body.

[0005] Therefore, it is necessary to provide a new tiltable quad-rotor UAV to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a tiltable quad-rotor UAV which can be tilted by means of rotors and has maneuverability beyond that of conventional quad-rotors. The overall layout of the machine is compact and stable, and the UAV can also protect people from being injured by the rotors.

[0007] In order to solve the above technical problems, the utility model provides a tiltable quad-rotor drone comprising: a tripod; a mounting structure, wherein the mounting structure is fixed to the top of the tripod, the mounting structure comprising a center plate, a pillar and a fixing block, the center plates are provided with four pieces, the four center plates are fixed in sequence through the pillar support, and the fixing block is fixed to the edge of one side of the two middle center plates; a bracket structure, wherein one end of the bracket structure is fixed to the interior between the center plates through the fixing block, the bracket structure comprises an arm, a fixing part, a fixing frame and a steering gear, one end of the arm is fixed to the interior between the center plates through the fixing block, and the fixing part is fixed through the fixing block Installed on the other end of the machine arm, the fixing frame is fixed to the surface of one end of the fixing member by bolts, and the servo is installed inside the fixing frame; a flight structure, the flight structure is installed on the side wall of the top end of the servo, the flight structure includes a steering wheel U-shaped arm, a motor and a rotor, the steering wheel U-shaped arm is rotatably connected to the side wall of the top end of the servo, the motor is installed on the top surface of the steering wheel U-shaped arm, the rotor is installed on the top end of the motor, and the side wall of the motor is fixed with a shell; a protective structure, the protective structure is installed on the side wall of the shell fixed on the outside of the motor, the protective structure includes a ring, and the ring is installed on the side wall of the shell fixed on the outside of the motor.

[0008] Preferably, the flying structure further comprises a limiting groove, the limiting groove is arranged on the side wall of the outer shell fixed on the outer side of the motor, and the limiting groove is annular.

[0009] Preferably, the inner side wall of the collar is provided with a protrusion, and the collar is engaged with the side wall of the outer shell fixed on the outside of the motor through the protrusion, and the collar is composed of two semicircles, and the two ends of the two semicircles are in contact with each other and fixedly connected by bolts.

[0010] Preferably, the protective structure also includes a protective cover, a protective railing, a positioning block, a connecting piece and a gasket, one end of the protective cover is fixed to the side wall of the ring, one end of the protective railing is fixed to the side wall of the other end of the protective cover, the positioning block is rotatably connected to the other end of the protective railing, the connecting pieces are arranged at both ends of the protective cover fixing ring, and the gasket is installed at the bottom end of the positioning block.

[0011] Preferably, the maximum diameter of the protective cover is greater than the maximum length of the rotor, and the protective cover is hollow.

[0012] Preferably, the gasket tube is rotationally connected to the connecting piece, and the centers of the connecting piece and the gasket tube are hollow, and the centers of the connecting piece and the gasket tube are penetrated by bolts, and the bolts are threadedly connected to the center point of the top surface of the rotor.

[0013] Preferably, the center plate is divided into a four-layer structure of "top plate, arm upper cover plate, arm lower cover plate and battery bottom plate", and each layer of the plates is connected by the four pillars. The arm upper cover plate and the arm lower cover plate are connected to the arm through the fixing block to fix the entire fuselage. At the same time, holes and space for installing the power distribution board, electric regulator and step-down module are reserved between the arm upper cover plate and the lower cover plate.

[0014] Compared with the related art, the tiltable quad-rotor drone provided by the utility model has the following beneficial effects:

[0015] The utility model provides a tiltable quad-rotor unmanned aerial vehicle. First, the flight structure can be tilted by controlling the servo, so that it has more functions and flexibility. The whole machine design adopts a modular structure, and the product specifications can be quickly customized and adjusted according to the scene requirements, which is convenient for assembly, maintenance and upgrading. The center plate design is layered, which effectively simplifies the internal wiring and the layout of parts, not only improves the heat dissipation performance, but also makes maintenance more convenient, and can make the aerodynamic focal point and the center of gravity as close as possible, which is convenient for stable control of the unmanned aerial vehicle; through this innovative design, the unmanned aerial vehicle can more flexibly adjust its attitude during flight, adapt to various complex flight environments, and improve the overall performance and reliability. The protective structure is installed on the periphery of the flight structure, and the rotor in the flight structure can be fully maintained. The hollow design can make the air flow generated by the rotation of the rotor unaffected, so that the protective structure can prevent the rotor from injuring people or collision damage. This device has the advantages of being able to tilt through the rotor, having the maneuverability beyond the conventional layout of the quad-rotor, and having a compact and stable layout of the whole machine, and being able to protect the rotor from injuring people. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a preferred embodiment of a tiltable quad-rotor drone provided by the utility model;

[0017] Figure 2 for Figure 1 The schematic diagram of the structure of the protective cover installed on the periphery of the rotor is shown;

[0018] Figure 3 for Figure 2 The schematic diagram of the structure of the protective cover from a top view is shown;

[0019] Figure 4 for Figure 2 The structural schematic diagram of the positioning block limit is shown;

[0020] Figure 5 for Figure 1 Schematic diagram of the structure of the rotor angle adjustment shown.

[0021] Numbers in the figure: 1. battery, 2. mounting structure, 21. center plate, 22. pillar, 23. fixing block, 3. bracket structure, 31. arm, 32. fixing part, 33. connecting part, 34. servo, 4. flight structure, 41. steering wheel U-arm, 42. limiting groove, 43. motor, 44. rotor, 5. tripod, 6. protective structure, 61. collar, 62. protective cover, 63. protective railing, 64. positioning block, 65. connecting part, 66. pad pipe. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] See also Figure 1 to Figure 5 , Figure 1 A structural schematic diagram of a preferred embodiment of a tiltable quad-rotor drone provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the structure of the protective cover installed on the periphery of the rotor is shown; Figure 3 for Figure 2 The schematic diagram of the structure of the protective cover from a top view is shown; Figure 4 for Figure 2 The structural schematic diagram of the positioning block limit is shown; Figure 5 for Figure 1The structural schematic diagram of the rotor angle adjustment is shown in which the tiltable quad-rotor UAV includes: a tripod 5; a mounting structure 2, wherein the mounting structure 2 is fixed to the top of the tripod 5, the mounting structure 2 includes a center plate 21, a pillar 22 and a fixing block 23, the center plate 21 is provided with four pieces, the four center plates 21 are supported and fixed in sequence by the pillars 22, and the fixing blocks 23 are fixed to the edges of one side of the two middle center plates 21; a support structure 3, one end of the support structure 3 is fixed to the interior between the center plates 21 through the fixing block 23, the support structure 3 includes an arm 31, a fixing part 32, a fixing frame 33 and a servo 34, one end of the arm 31 is fixed to the interior between the center plates 21 through the fixing block 23, and the fixing part 32 is installed through the fixing block 23 At the other end of the arm 31, the fixing frame 33 is fixed to the surface of one end of the fixing member 32 by bolts, and the servo 34 is installed inside the fixing frame 33; a flying structure 4, the flying structure 4 is installed on the side wall of the top end of the servo 34, the flying structure 4 includes a steering wheel U-shaped arm 41, a motor 43 and a rotor 44, the steering wheel U-shaped arm 41 is rotatably connected to the side wall of the top end of the servo 34, the motor 43 is installed on the top surface of the steering wheel U-shaped arm 41, the rotor 44 is installed on the top end of the motor 43, and the side wall of the motor 43 is fixed with a shell; a protective structure 6, the protective structure 6 is installed on the side wall of the shell fixed on the outside of the motor 43, the protective structure 6 includes a ring 61, and the ring 61 is installed on the side wall of the shell fixed on the outside of the motor 43.

[0024] In the specific implementation process, Figure 1 , Figure 2 and Figure 5 As shown, the flight structure 4 also includes a limit groove 42, which is arranged on the side wall of the outer shell fixed on the outside of the motor 43, and the limit groove 42 is annular; the inner side wall of the ring 61 is provided with a protrusion, and the ring 61 is engaged with the side wall of the outer shell fixed on the outside of the motor 43 through the protrusion, and the ring 61 is composed of two semicircles, and the two ends of the two semicircles are in contact with each other and fixedly connected by bolts.

[0025] The collar 61 can be conveniently limited by the limiting groove 42 provided on the side wall of the motor 43 housing, so that the collar 61 can be installed on the side wall of the motor 43 housing by bolts without being displaced.

[0026] In the specific implementation process, Figure 2 , Figure 3 and Figure 4As shown, the protective structure 6 also includes a protective cover 62, a protective railing 63, a positioning block 64, a connecting piece 65 and a gasket 66. One end of the protective cover 62 is fixed to the side wall of the collar 61, one end of the protective railing 63 is fixed to the side wall of the other end of the protective cover 62, the positioning block 64 is rotatably connected to the other end of the protective railing 63, the connecting piece 65 is provided at both ends of the fixing ring of the protective cover 62, and the gasket 66 is installed at the bottom end of the positioning block 64; the maximum diameter of the protective cover 62 is greater than the maximum length of the rotor 44, and the protective cover 62 is hollow; the gasket 66 is rotatably connected to the connecting piece 65, and the centers of the connecting piece 65 and the gasket 66 are hollow, and the centers of the connecting piece 65 and the gasket 66 are penetrated by bolts, and the bolts are threadedly connected to the center point of the top surface of the rotor 44.

[0027] It is convenient to install the protective cover 62 on the side wall of the motor 43 housing through the collar 61, so that the protective cover 62 covers the periphery of the rotor 44. In the empty state, the protective cover 62 will not affect the airflow when the rotor 44 rotates, and the connecting piece 65 is fixed to the top of the center position of the rotor 44 by bolts, so as to restrict and support the protective railing 63 to a certain extent, so that the protective cover 62 and the protective railing 63 can perform all-round maintenance on the rotor 44.

[0028] In the specific implementation process, Figure 1 As shown, the central plate 21 is divided into a four-layer structure of "top plate, arm upper cover plate, arm lower cover plate and battery bottom plate", and each layer of the plate is connected by four pillars 22. The arm upper cover plate and the arm lower cover plate are connected to the arm 31 through the fixing block 23 to fix the entire fuselage. At the same time, holes and space for installing the distribution board, electric regulator and step-down module are reserved between the arm upper cover plate and the lower cover plate.

[0029] The working principle of the tiltable quad-rotor drone provided by the utility model is as follows:

[0030] When in use, the rotor 44 and the motor 43 assembly are connected to the connecting piece 65 of the servo 34 through the steering wheel U-arm, so as to have the tilting capability. In order to avoid damage to the fuselage structure caused by the plane tilting of the rotor 44, the rotor 44 is installed in a plane rotating around the arm axis, that is, the rotation axis of the servo 34 is parallel to and coplanar with the arm. The center plate 21 adopts a layered design concept, and the center plate 21 is divided into four layers. The upper cover plate of the arm and the lower cover plate of the arm are connected to the arm through the fixing block 23 to fix the entire fuselage. A layer of tin foil is laid on the upper cover plate to isolate the electromagnetic signal interference of the power device to the flight control. The installation space and holes for common airborne computers such as Raspberry Pi and NVIDIA NX and visual sensors such as D435i and T265 are reserved between the upper cover plate of the arm and the upper top plate to ensure that the aircraft has the navigation capability of the denied environment and indoor mission scenes. Pixhawk is reserved above the upper top plate. The mounting holes of common flight control and GPS such as V5+, V6X, 6C are used for quick installation and fixation; the top of the battery 1 bottom plate is used to fix the battery 1, and a Velcro hole is reserved, and the bottom is reserved for the optical flow module hole for fixed-point and other flight modes; and when flying in the case of many people or many obstacles, the protective cover 62 is put on the limiting groove 42 provided on the side wall of the motor 43 housing through the ring 61 fixed at the bottom, and the two ends of the ring 61 are fixed by bolts, so that the protective cover 62 is fixed to the periphery of the rotor 44 to protect the rotor 44, and then the protective cover 62 is fixed to the periphery of the rotor 44 by bolts. The top of 65 is inserted so that it passes through the pad tube 66 and is threadedly connected with the center position of the top of the rotor 44, so that the pad tube 66 is supported between the rotor 44 and the connecting piece 65, and the rotation between the pad tube 66 and the connecting piece 65 makes the rotation of the rotor 44 unaffected, so that the guardrail 63 is supported, and the protective cover 62 and the protective fence are used to fully enclose the rotor 44. This device has the advantages of being able to tilt through the rotor, having the maneuverability beyond the conventional layout of the four-rotor, and the overall layout of the machine is compact and stable, and can also protect the rotor from injuring people.

[0031] Compared with the related art, the tiltable quad-rotor drone provided by the utility model has the following beneficial effects:

[0032] The utility model provides a tiltable quad-rotor UAV, which can tilt the flight structure 4 by controlling the servo 34, so that it has more functions and flexibility. The whole machine is designed with a modular structure, and the product specifications can be quickly customized and adjusted according to the scene requirements, which is convenient for assembly, maintenance and upgrading. The center plate 21 is designed in a layered manner, which effectively simplifies the internal wiring and the layout of parts, not only improves the heat dissipation performance, but also makes maintenance more convenient, and can make the aerodynamic focal point and the center of gravity as close as possible, which is convenient for stable control of the UAV; through this innovative design, the UAV can be in flight It can adjust the posture more flexibly and adapt to various complex flight environments, thereby improving the overall performance and reliability. The protective structure 6 is installed on the periphery of the flight structure 4, so that the rotor 44 in the flight structure 4 can be fully maintained. The hollow design can ensure that the air flow generated by the rotation of the rotor 44 is not affected, so that the protective structure 6 can prevent the rotor 44 from injuring people or being damaged by collision. This device can be tilted through the rotor 44, and has the maneuverability that exceeds the conventional layout of the four-rotor 44. The overall layout of the machine is compact and stable, and it can also protect the rotor 44 from injuring people.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tiltable quad-rotor drone, characterized in that: include; Tripod (5); A mounting structure (2), the mounting structure (2) being fixed to the top of the tripod (5), the mounting structure (2) comprising a center plate (21), a support column (22) and a fixing block (23), the center plates (21) being provided with four pieces, the four center plates (21) being supported and fixed in sequence by the support column (22), and the fixing block (23) being fixed to the edges of one side of two middle center plates (21); A support structure (3), one end of the support structure (3) being fixed to the interior between the center plates (21) through the fixing block (23), the support structure (3) comprising an arm (31), a fixing member (32), a fixing frame (33) and a steering gear (34), one end of the arm (31) being fixed to the interior between the center plates (21) through the fixing block (23), the fixing member (32) being mounted to the other end of the arm (31) through the fixing block (23), the fixing frame (33) being fixed to the surface of one end of the fixing member (32) through bolts, and the steering gear (34) being mounted inside the fixing frame (33); A flying structure (4), the flying structure (4) being mounted on a side wall at the top end of the steering gear (34), the flying structure (4) comprising a steering wheel U-shaped arm (41), a motor (43) and a rotor (44), the steering wheel U-shaped arm (41) being rotatably connected to the side wall at the top end of the steering gear (34), the motor (43) being mounted on a top surface of the steering wheel U-shaped arm (41), the rotor (44) being mounted on the top end of the motor (43), and a housing being fixed to the side wall of the motor (43); A protective structure (6), the protective structure (6) being mounted on a side wall of a housing fixed outside the motor (43), the protective structure (6) comprising a collar (61), the collar (61) being mounted on a side wall of a housing fixed outside the motor (43).

2. The tiltable quad-rotor drone according to claim 1, characterized in that: The flying structure (4) further comprises a limiting groove (42), wherein the limiting groove (42) is arranged on a side wall of a housing fixed outside the motor (43), and the limiting groove (42) is annular.

3. The tiltable quad-rotor drone according to claim 2, characterized in that: The inner side wall of the collar (61) is provided with a protrusion, and the collar (61) is engaged with the side wall of the outer shell fixed on the outside of the motor (43) through the protrusion, and the collar (61) is composed of two semicircles, and the two ends of the two semicircles are in contact with each other and fixedly connected by bolts.

4. The tiltable quad-rotor drone according to claim 1, characterized in that: The protective structure (6) further comprises a protective cover (62), a protective railing (63), a positioning block (64), a connecting piece (65) and a cushion pipe (66); one end of the protective cover (62) is fixed to the side wall of the collar (61); one end of the protective railing (63) is fixed to the side wall of the other end of the protective cover (62); the positioning block (64) is rotatably connected to the other end of the protective railing (63); the connecting piece (65) is provided at both ends of the fixing ring of the protective cover (62); and the cushion pipe (66) is installed at the bottom end of the positioning block (64).

5. The tiltable quad-rotor drone according to claim 4, characterized in that: The maximum diameter of the protective cover (62) is greater than the maximum length of the rotor (44), and the protective cover (62) is hollow.

6. The tiltable quad-rotor drone according to claim 4, characterized in that: The pad tube (66) is rotationally connected to the connecting piece (65), and the centers of the connecting piece (65) and the pad tube (66) are hollow. The centers of the connecting piece (65) and the pad tube (66) are penetrated by bolts, and the bolts are threadedly connected to the center point of the top surface of the rotor (44).

7. The tiltable quad-rotor drone according to claim 4, characterized in that: The central plate (21) is divided into a four-layer structure of an upper "top plate, an upper cover plate of the machine arm, a lower cover plate of the machine arm and a bottom plate of the battery (1)", each layer of the plate is connected via four pillars (22), the upper cover plate of the machine arm and the lower cover plate of the machine arm are connected to the machine arm (31) via the fixing block (23) to fix the entire machine body, and holes and space for installing a distribution board, an electric regulator and a step-down module are reserved between the upper cover plate of the machine arm and the lower cover plate.

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