Multi-rotor unmanned aerial vehicle

Abstract

The utility model discloses a multi-rotor unmanned aerial vehicle which comprises a multi-rotor unmanned aerial vehicle body, the bottom of the multi-rotor unmanned aerial vehicle body is fixedly connected with two foot stools, the top of the multi-rotor unmanned aerial vehicle body is in threaded connection with two first screw rods, the two first screw rods are symmetrically arranged, and the bottom of the multi-rotor unmanned aerial vehicle body is in threaded connection with the bottom of the multi-rotor unmanned aerial vehicle body. The outer side of each first screw is in threaded connection with an adapter arm, one side of each adapter arm is fixedly connected with a transverse plate, one side of each transverse plate is in threaded connection with a second screw, and after the protective net and the moving frame are adjusted to the required height according to the U-shaped limiting holes, the second screws are rotated clockwise to fix the position of the moving frame. In the lifting or flying process of the multi-rotor unmanned aerial vehicle body, the protective net can shield the high-speed rotating blades from the side edge, the risk that objects from the side edge collide with the high-speed rotating blades is reduced under the condition that normal use of the rotors is not affected, and the safety of the multi-rotor unmanned aerial vehicle body in the use process is effectively guaranteed.

Description

Technical Field

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

[0002] A drone is an aircraft that can be remotely controlled or fly autonomously. A drone is an autonomous system that can perform tasks without human intervention. There are different types and uses of drones, such as reconnaissance, surveillance, traffic control, firefighting, agriculture, and entertainment. For different uses, drones are generally equipped with multiple sets of rotors for operation.

[0003] During use, the high-speed rotating blades of some existing multi-rotor drones are directly exposed to the external environment, which can easily cause the blades to hit nearby people or tree branches when moving or rising and falling, posing certain safety hazards. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a multi-rotor UAV to solve the problem proposed in the above background technology that during use, the high-speed rotating blades of some existing multi-rotor UAVs are directly exposed to the external environment, which can easily cause the blades to hit surrounding people or tree branches when moving or lifting, posing certain safety hazards.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-rotor UAV, comprising a multi-rotor UAV body, a tripod fixedly connected to the bottom of the multi-rotor UAV body, two of the tripods are symmetrically arranged, a first screw is threadedly connected to the top of the multi-rotor UAV body, two of the first screws are symmetrically arranged, a transfer arm is threadedly connected to the outer side of the first screw, a cross plate is fixedly connected to one side of the transfer arm, a second screw is threadedly connected to one side of the cross plate, a plurality of second screws are symmetrically arranged, a moving frame is movably connected to the outer side of the second screw through a limiting hole, a protective net is fixedly connected to the inner side of the moving frame, an inclined rod is fixedly connected to one side of the bottom of the transfer arm, a cross rod is fixedly connected to the bottom of the inclined rod, and a tripod is fixedly connected to one side of the cross rod.

[0006] Preferably, an anti-slip pad is provided on the outer side of the bottom of the tripod, and the top of the tripod is fixedly connected to the multi-rotor UAV body.

[0007] Preferably, the outer sides of the top ends of the first screw rod and the second screw rod are movably connected with gaskets, the outer sides of the first screw rod are threadedly connected with transfer arms, and the outer sides of one ends of the second screw rod are threadedly connected with a shift frame.

[0008] Preferably, the transverse plate and the moving frame are both made of carbon fiber material, one side of the transverse plate is threadedly connected to a second screw rod, and the outer side of the second screw rod is movably connected to the moving frame through a limiting hole.

[0009] Preferably, the limiting hole is a U-shaped structure, the inner side of the limiting hole is movably connected to a second screw rod, and the outer side of one end of the second screw rod is threadedly connected to a cross plate.

[0010] Preferably, a plurality of lightweight holes are symmetrically arranged on the inner side of the transverse plate, a transfer arm is fixedly connected to one side of the transverse plate, and a second screw is threadedly connected to the other side of the transverse plate.

[0011] Preferably, a limiting bar is fixedly connected to the top of the multi-rotor UAV body, two limiting bars are symmetrically arranged, and a transfer arm is slidably connected between adjacent limiting bars.

[0012] Preferably, the outer side of the moving frame is fixedly connected with a spacer, the spacer is made of a flexible material, and the inner side of the moving frame is movably connected with a second screw through a limiting hole.

[0013] Compared with the prior art, the utility model provides a multi-rotor drone with the following beneficial effects:

[0014] 1. The utility model provides a protective net, the outer side of the protective net is fixedly connected with a moving frame, the inner side of the moving frame is movably connected with a second screw through a limiting hole, the outer side of the second screw is threadedly connected with a cross plate, one side of the cross plate is fixedly connected with a transfer arm, the inner side of the transfer arm is threadedly connected with a first screw, and the outer side of the first screw is threadedly connected with a multi-rotor UAV body. After the protective net and the moving frame are adjusted to the required height according to the U-shaped limiting hole, the second screw is rotated clockwise to fix the position of the moving frame. When the multi-rotor UAV body is lifted or flying, the protective net can block the high-speed rotating blades from the side, and reduce the risk of collision between objects from the side and the high-speed rotating blades without affecting the normal use of the rotor, thereby effectively ensuring the safety of the multi-rotor UAV body during use.

[0015] 2. The utility model provides a gasket, the inner side of which is movably connected to the first screw and the second screw, the outer side of the first screw is threadedly connected to the transfer arm, and the outer side of the second screw is threadedly connected to the cross plate, which can effectively reduce the looseness of the first screw and the second screw during long-term use;

[0016] 3. The utility model provides limit bars, the bottom of which is fixedly connected to the multi-rotor drone body, and adjacent limit bars are slidably connected to transfer arms, which can effectively reduce the swing amplitude of the transfer arms during long-term use.

[0017] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the axonometric structure of a multi-rotor UAV proposed in the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 3 This is a front view structural schematic diagram of a multi-rotor UAV proposed in the utility model;

[0022] Figure 4 This is a schematic diagram of the top view of the structure of a multi-rotor UAV proposed in the utility model;

[0023] In the figure: a multi-rotor UAV body 1, a tripod 2, a first screw 3, a transfer arm 4, a cross plate 5, a second screw 6, a limit hole 7, a shift frame 8, a protective net 9, a diagonal rod 10, a cross rod 11, a spacer 12, a gasket 13, a limit bar 14, and a lightweight hole 15. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4The utility model provides a technical solution: a multi-rotor UAV, including a multi-rotor UAV body 1, a tripod 2 is fixedly connected to the bottom of the multi-rotor UAV body 1, two tripods 2 are symmetrically arranged, a first screw 3 is threadedly connected to the top of the multi-rotor UAV body 1, two first screws 3 are symmetrically arranged, the outer side of the first screw 3 is threadedly connected to a transfer arm 4, one side of the transfer arm 4 is fixedly connected to a cross plate 5, one side of the cross plate 5 is threadedly connected to a second screw 6, a plurality of second screws 6 are symmetrically arranged, the outer side of the second screw 6 is movably connected to a moving frame 8 through a limiting hole 7, and the inner side of the moving frame 8 is fixedly connected to a protective net 9 , one side of the bottom of the transfer arm 4 is fixedly connected with an inclined rod 10, the bottom of the inclined rod 10 is fixedly connected with a cross rod 11, and one side of the cross rod 11 is fixedly connected with a tripod 2. After adjusting the protective net 9 and the moving frame 8 to the required height according to the U-shaped limiting hole 7, the second screw 6 is rotated clockwise to fix the position of the moving frame 8. When the multi-rotor UAV body 1 is lifted or flying, the protective net 9 can block the high-speed rotating blades from the side. Without affecting the normal use of the rotor, the risk of collision between objects from the side and the high-speed rotating blades is reduced, thereby effectively ensuring the safety of the multi-rotor UAV body 1 during use.

[0026] In the utility model, preferably, an anti-slip pad is provided on the outer side of the bottom of the tripod 2, and the top of the tripod 2 is fixedly connected to the multi-rotor UAV body 1, which can effectively improve the stability of the tripod 2 after being placed on the ground and reduce the risk of slipping after being placed on special terrain.

[0027] In the utility model, preferably, the outer sides of the top ends of the first screw 3 and the second screw 6 are movably connected with gaskets 13, the outer sides of the first screw 3 are threadedly connected with transfer arms 4, and the outer sides of one ends of the second screw 6 are threadedly connected with moving frames 8, which can effectively reduce the looseness of the first screw 3 and the second screw 6 during long-term use.

[0028] In the utility model, preferably, the cross plate 5 and the moving frame 8 are both made of carbon fiber material, and one side of the cross plate 5 is threadedly connected to the second screw 6, and the outer side of the second screw 6 is movably connected to the moving frame 8 through a limiting hole 7. When the hardness of the material is met, the weight is effectively reduced and the load on the multi-rotor UAV body 1 is reduced.

[0029] In the utility model, preferably, the limiting hole 7 is a U-shaped structure, the inner side of the limiting hole 7 is movably connected to the second screw 6, and the outer side of one end of the second screw 6 is threadedly connected to the cross plate 5, which effectively adjusts the height position of the moving frame 8 and the protective net 9.

[0030] In the utility model, preferably, a plurality of lightweight holes 15 are symmetrically arranged on the inner side of the cross plate 5, a transfer arm 4 is fixedly connected to one side of the cross plate 5, and a second screw 6 is threadedly connected to the other side of the cross plate 5, thereby effectively reducing the weight of the cross plate 5 and reducing the load on the multi-rotor UAV body 1.

[0031] In the utility model, preferably, a limiting bar 14 is fixedly connected to the top of the multi-rotor UAV body 1, two limiting bars 14 are symmetrically arranged, and adjacent limiting bars 14 are slidably connected with a transfer arm 4, which can effectively reduce the swing amplitude of the transfer arm 4 during long-term use.

[0032] In the utility model, preferably, the outer side of the moving frame 8 is fixedly connected with a spacer 12, the spacer 12 is made of flexible material, and the inner side of the moving frame 8 is movably connected with a second screw 6 through a limiting hole 7, which effectively reduces the degree of damage caused by impact during the movement or lifting of the device.

[0033] The working principle and usage process of the utility model are as follows: when in use, after adjusting the protective net 9 and the moving frame 8 to the required height according to the U-shaped limiting hole 7, the second screw 6 is rotated clockwise to fix the position of the moving frame 8. When the multi-rotor UAV body 1 is lifted or flying, the protective net 9 can block the high-speed rotating blades from the side, without affecting the normal use of the rotor, reducing the risk of collision between objects from the side and the high-speed rotating blades, thereby effectively ensuring the safety of the multi-rotor UAV body 1 during use.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-rotor drone, comprising a multi-rotor drone body (1), characterized in that: The bottom of the multi-rotor UAV body (1) is fixedly connected to a tripod (2), and two of the tripods (2) are symmetrically arranged. The top of the multi-rotor UAV body (1) is threadedly connected to a first screw rod (3), and two of the first screw rods (3) are symmetrically arranged. The outer side of the first screw rod (3) is threadedly connected to a transfer arm (4), one side of the transfer arm (4) is fixedly connected to a cross plate (5), one side of the cross plate (5) is threadedly connected to a second screw rod (6), and a plurality of the second screw rods (6) are symmetrically arranged. The outer side of the second screw rod (6) is movably connected to a moving frame (8) through a limiting hole (7), and the inner side of the moving frame (8) is fixedly connected to a protective net (9). One side of the bottom of the transfer arm (4) is fixedly connected to an inclined rod (10), the bottom of the inclined rod (10) is fixedly connected to a cross rod (11), and one side of the cross rod (11) is fixedly connected to the tripod (2).

2. A multi-rotor drone according to claim 1, characterized in that: The outer sides of the bottoms of the tripods (2) are provided with anti-skid pads, and the tops of the tripods (2) are fixedly connected to the multi-rotor drone body (1).

3. A multi-rotor drone according to claim 1, characterized in that: The outer sides of the top ends of the first screw rod (3) and the second screw rod (6) are movably connected with gaskets (13), the outer sides of the first screw rod (3) are threadedly connected with a transfer arm (4), and the outer sides of one ends of the second screw rod (6) are threadedly connected with a shift frame (8).

4. A multi-rotor UAV according to claim 1, characterized in that: The transverse plate (5) and the shift frame (8) are both made of carbon fiber material; one side of the transverse plate (5) is threadedly connected to a second screw rod (6); and the outer side of the second screw rod (6) is movably connected to the shift frame (8) via a limiting hole (7).

5. The multi-rotor UAV according to claim 1, characterized in that: The limiting hole (7) is a U-shaped structure, the inner side of the limiting hole (7) is movably connected to the second screw rod (6), and the outer side of one end of the second screw rod (6) is threadedly connected to the cross plate (5).

6. The multi-rotor UAV according to claim 1, characterized in that: A plurality of lightweight holes (15) are symmetrically arranged on the inner side of the transverse plate (5); a transfer arm (4) is fixedly connected to one side of the transverse plate (5); and a second screw rod (6) is threadedly connected to the other side of the transverse plate (5).

7. The multi-rotor UAV according to claim 1, characterized in that: The top of the multi-rotor drone body (1) is fixedly connected to a limiting bar (14), two limiting bars (14) are symmetrically arranged, and adjacent limiting bars (14) are slidably connected to a transfer arm (4).

8. The multi-rotor UAV according to claim 1, characterized in that: The outer side of the moving frame (8) is fixedly connected with a spacer (12), and the spacer (12) is made of a flexible material. The inner side of the moving frame (8) is movably connected with a second screw rod (6) through a limiting hole (7).

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