Unmanned aerial vehicle running at low altitude

Abstract

The utility model provides an unmanned aerial vehicle running at low altitude, and relates to the technical field of unmanned aerial vehicles, the unmanned aerial vehicle comprises a vehicle body, round grooves are formed in the top of the vehicle body and close to the four ends, round holes are formed in the inner walls of the bottoms of the round grooves, cylinders are embedded in the round grooves and the round holes, and fan blades are fixedly connected to the tops of the cylinders. Embedding grooves are formed in the inner walls of the circular grooves, embedding blocks are fixed to the surfaces of the cylinders and located in the embedding grooves, circular cavities are formed in the positions, close to the centers, of the inner walls of one sides of the embedding grooves, and square grooves are formed in the positions, located between the circular cavities, of the top of the machine body. The rotating drum rotates to drive the first two-way screw rod to rotate, the first two-way screw rod rotates to drive the moving sleeves at the two ends to move, the effect that the clamping blocks are embedded into or separated from the clamping grooves can be achieved, and therefore the effect that damaged fan blades can be conveniently detached and replaced with new fan blades can be achieved, and the fan blade replacing efficiency can be improved.

Description

Technical Field

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

[0002] Low-altitude drones, also known as unmanned aerial vehicles or remotely piloted aircraft, are unmanned aircraft controlled by radio remote control equipment or operated by pre-programmed programs. Drones are maneuverable and flexible, with small size and light weight, and can be transported and carried at any time.

[0003] The fan blades and the bottom support frame on the existing drone are usually integrated with the drone. When one of the fan blades or the support frame is damaged, it is difficult to disassemble and replace it, which is troublesome. Therefore, a low-altitude drone is needed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the fan blades on the drone and the bottom support frame are usually integrated with the drone, and it is difficult to disassemble and replace one of the fan blades or the support frame when it is damaged, and to propose a low-altitude operating drone.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a low-altitude unmanned aerial vehicle, including a body, a circular groove is opened on the top of the body and near the four ends, a circular hole is opened on the bottom inner wall of the circular groove, a cylinder is embedded in the circular groove and the circular hole, a fan blade is fixedly connected to the top of the cylinder, an embedding groove is opened on the inner wall of the circular groove, an embedding block is fixed on the surface of the cylinder, the embedding block is located in the embedding groove, a circular cavity is opened on the inner wall of one side of the embedding groove and near the center, a square groove is opened on the top of the body and between the circular cavities, the square groove passes through a first bidirectional screw and is rotatably connected to its bearing, and the two ends of the first bidirectional screw are fixedly connected to the fan blade, and the two ends of the first bidirectional screw are fixedly connected to the fan blade, and the two ends of the first bidirectional screw are fixedly connected to the fan blade, and the fan blade is fixedly connected to the fan blade, and the fan blade is fixedly connected to the fan blade Both ends are embedded in the circular cavity and are sleeved with a movable sleeve with a thread connection, a block is fixed to one end of the movable sleeve, a slot is provided on one side wall of the block, the block is located in the slot and matches it, both side walls of the body are provided with T-slots, a clamping plate is embedded in the T-slot, a connecting plate is fixedly connected to one side wall of the clamping plate, both ends of the connecting plate are fixedly connected to a support frame, a second bidirectional screw is provided inside the T-slot and on one side of the clamping plate, both ends of the second bidirectional screw are sleeved and threadedly connected to a movable plate, a clamping rod is fixedly connected to one side wall of the movable plate, and the other end of the clamping rod is embedded in the inner walls at both ends of the clamping plate and is slidably connected thereto.

[0006] Preferably, the inner wall of the circular cavity is symmetrically provided with limiting grooves, the surface of the movable sleeve is symmetrically fixedly connected with limiting plates, and the limiting plates are located inside the limiting grooves and are slidably connected thereto.

[0007] Preferably, a rotating drum is sleeved and fixed on the surface of the first bidirectional screw at the square groove, and the surface of the rotating drum is provided with anti-slip grooves.

[0008] Preferably, one end of the second bidirectional screw is rotatably connected to an inner wall bearing at one end of the T-slot, and the other end of the second bidirectional screw passes through the inner wall at the other end of the T-slot and is rotatably connected to its bearing.

[0009] Preferably, one end of the second bidirectional screw is fixedly connected to a rotating piece, and the surface of the rotating piece is provided with anti-slip grooves.

[0010] Preferably, a storage battery is installed inside the body.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, the first bidirectional screw is driven to rotate by the rotation of the rotating drum, and the rotation of the first bidirectional screw drives the movable sleeves at both ends to move, so that the card block can be embedded in or out of the card slot, so that the damaged fan blades can be easily disassembled and replaced with new ones, thereby improving the efficiency of replacing the fan blades.

[0013] 2. In the utility model, the second bidirectional screw is driven to rotate by the rotating member, and the rotation of the second bidirectional screw drives the moving plates at both ends to move. The movement of the moving plates drives the clamping rod to embed into or detach from the two ends of the clamping plates, which can facilitate the disassembly and replacement of the damaged support frame, thereby improving the efficiency of replacing the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model proposes a three-dimensional diagram of the overall structure of a low-altitude UAV;

[0015] Figure 2 The utility model provides a vertical cross-sectional view of the overall structure of a low-altitude UAV;

[0016] Figure 3 The utility model provides a cross-sectional view of the overall structure of a low-altitude UAV;

[0017] Figure 4 A top view of the structure of a low-altitude UAV is provided for the utility model;

[0018] Figure 5 A three-dimensional diagram of the support frame structure of a low-altitude UAV is proposed for the utility model;

[0019] Figure 6 A three-dimensional diagram of the fan blade structure of a low-altitude UAV is proposed for the utility model;

[0020] Figure 7 The utility model provides a stereoscopic diagram of a rotating rod structure of a low-altitude UAV.

[0021] Legend: 1. Machine body; 2. Round groove; 3. Round hole; 4. Embedded groove; 5. Round cavity; 6. Square groove; 7. First bidirectional screw; 8. Moving sleeve; 9. Limiting plate; 10. Limiting groove; 11. Block; 12. Cylinder; 13. Embedded block; 14. Slot; 15. Fan blade; 16. Rotating drum; 17. T-slot; 18. Clamping plate; 19. Connecting plate; 20. Support frame; 21. Second bidirectional screw; 22. Moving plate; 23. Clamping rod; 24. Rotating part; 25. Storage battery. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-7 As shown, the utility model provides a low-altitude UAV, including a body 1, a circular groove 2 is opened on the top of the body 1 and near the four ends, a circular hole 3 is opened on the bottom inner wall of the circular groove 2, a cylinder 12 is embedded in the circular groove 2 and the circular hole 3, a fan blade 15 is fixedly connected to the top of the cylinder 12, an embedded groove 4 is opened on the inner wall of the circular groove 2, an embedded block 13 is fixed on the surface of the cylinder 12, the embedded block 13 is located inside the embedded groove 4, a circular cavity 5 is opened on the inner wall of one side of the embedded groove 4 and near the center, a square groove 6 is opened on the top of the body 1 and between the circular cavities 5, the square groove 6 passes through the first bidirectional screw 7 and is rotatably connected to its bearing, and both ends of the first bidirectional screw 7 are embedded in the circular cavity 5 and sleeved with threads A movable sleeve 8 is connected, a clamping block 11 is fixed at one end of the movable sleeve 8, a clamping slot 14 is provided on one side wall of the clamping block 11, the clamping block 11 is located inside the clamping slot 14 and is adapted thereto, T-slots 17 are provided on both side walls of the machine body 1, a clamping plate 18 is embedded inside the T-slot 17, a connecting plate 19 is fixedly connected to one side wall of the clamping plate 18, a supporting frame 20 is fixedly connected to both ends of the connecting plate 19, a second bidirectional screw 21 is provided inside the T-slot 17 and located on one side of the clamping plate 18, a movable plate 22 is sleeved on both ends of the second bidirectional screw 21 and threadedly connected, a clamping rod 23 is fixedly connected to one side wall of the movable plate 22, the other end of the clamping rod 23 is embedded in the inner walls at both ends of the clamping plate 18 and is slidably connected thereto.

[0025] The effect achieved by the entire embodiment 1 is that a circular groove 2 is opened through the top of the body 1 and near the four ends, a circular hole 3 is opened on the bottom inner wall of the circular groove 2, a cylinder 12 is embedded in the circular groove 2 and the circular hole 3, a fan blade 15 is fixedly connected to the top of the cylinder 12, an embedding groove 4 is opened on the inner wall of the circular groove 2, an embedding block 13 is fixed on the surface of the cylinder 12, and the embedding block 13 is located inside the embedding groove 4, which can play the effect of embedding the cylinder 12 into the circular groove 2 and embedding the embedding block 13 into the embedding groove 4, thereby positioning the cylinder 12, a circular cavity 5 is opened through the inner wall of one side of the embedding groove 4 and near the center, a square groove 6 is opened on the top of the body 1 and between the circular cavities 5, the square groove 6 passes through the first bidirectional screw 7 and is rotatably connected to its bearing, both ends of the first bidirectional screw 7 are embedded in the circular cavity 5 and are threadedly connected with a movable sleeve 8, one end of the movable sleeve 8 is fixed with a clamping block 11, and one side wall of the clamping block 11 has a clamping groove 14, the card block 11 is located inside the card slot 14 and adapted thereto, so that the first bidirectional screw 7 can be rotated to drive the movable sleeves 8 at both ends to move inside the circular cavity 5, so that the card block 11 can be embedded in or out of the card slot 14. T-slots 17 are provided on both side walls of the machine body 1, and a card plate 18 is embedded in the T-slot 17. A connecting plate 19 is fixedly connected to one side wall of the card plate 18, and both ends of the connecting plate 19 are fixedly connected to a support frame 20. A second bidirectional screw 21 is provided inside the T-slot 17 and located on one side of the card plate 18. Both ends of the second bidirectional screw 21 are sleeved and threadedly connected with a movable plate 22. A card rod 23 is fixedly connected to one side wall of the movable plate 22. The other end of the card rod 23 is embedded in the inner wall at both ends of the card plate 18 and is slidably connected thereto, so that the second bidirectional screw 21 can be rotated to drive the movable plates 22 at both ends to move, and the movable plates 22 drive the card rod 23 to embed or detach from the inner wall at both ends of the card plate 18.

[0026] Embodiment 2, as Figure 1-7 As shown, the inner wall of the circular cavity 5 is symmetrically provided with a limiting groove 10, the surface of the movable sleeve 8 is symmetrically fixedly connected with a limiting plate 9, and the limiting plate 9 is located inside the limiting groove 10 and is slidably connected thereto; a rotating drum 16 is sleeved and fixed on the surface of the first bidirectional screw 7 and located at the square groove 6, and the surface of the rotating drum 16 is provided with anti-skid patterns; one end of the second bidirectional screw 21 is rotatably connected to the inner wall bearing of one end of the T-slot 17, and the other end of the second bidirectional screw 21 penetrates the inner wall of the other end of the T-slot 17 and is rotatably connected to its bearing; one end of the second bidirectional screw 21 is fixedly connected with a rotating member 24, and the surface of the rotating member 24 is provided with anti-skid patterns; a storage battery 25 is installed inside the body 1.

[0027] The effect achieved by the entire embodiment 2 is that the limiting grooves 10 are symmetrically provided on the inner wall of the circular cavity 5, and the limiting plates 9 are symmetrically fixedly connected to the surface of the movable sleeve 8. The limiting plates 9 are located inside the limiting grooves 10 and are slidably connected thereto, which can play the role of limiting the movable sleeve 8; a rotating drum 16 is sleeved and fixed on the surface of the first bidirectional screw 7 and located at the square groove 6, and the surface of the rotating drum 16 is provided with anti-slip grooves, which can play the role of facilitating the rotation of the rotating drum 16 and driving the first bidirectional screw 7; one end of the second bidirectional screw 21 is connected to the T The inner wall of one end of the T-slot 17 is rotatably connected to the bearing, and the other end of the second bidirectional screw 21 passes through the inner wall of the other end of the T-slot 17 and is rotatably connected to its bearing, which can achieve the effect of positioning the two ends of the second bidirectional screw 21; a rotating member 24 is fixedly connected to one end of the second bidirectional screw 21, and the surface of the rotating member 24 is provided with anti-slip grooves, which can achieve the effect of enabling the rotating member 24 to drive the second bidirectional screw 21 to rotate; a storage battery 25 is installed inside the body 1, so that the storage battery 25 can power the drone.

[0028] Working principle: When the fan blade 15 is damaged, the first bidirectional screw 7 is driven to rotate by the rotation of the rotating drum 16, and the rotation of the first bidirectional screw 7 drives the movable sleeves 8 at both ends to move, which can make the block 11 embed into or disengage from the inside of the card slot 14, so that the damaged fan blade 15 can be disassembled and replaced with a new one, thereby improving the efficiency of replacing the fan blade 15. At this time, when the support frame 20 is damaged, the second bidirectional screw 21 is driven to rotate by the rotating member 24, and the rotation of the second bidirectional screw 21 drives the movable plates 22 at both ends to move, and the movement of the movable plate 22 drives the clamping rod 23 to embed into or disengage from the two ends of the clamping plate 18, which can facilitate the disassembly and replacement of the damaged support frame 20, thereby improving the efficiency of replacing the support frame 20.

[0029] The wiring diagram of the storage battery 25 in the present invention is common knowledge in the art, and its working principle is a known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the storage battery 25 are not explained in detail.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A low-altitude UAV, comprising a body (1), characterized in that: A circular groove (2) is provided at the top of the body (1) and near the four ends; a circular hole (3) is provided on the bottom inner wall of the circular groove (2); a cylinder (12) is embedded in the inside of the circular groove (2) and the circular hole (3); a fan blade (15) is fixedly connected to the top of the cylinder (12); an embedding groove (4) is provided on the inner wall of the circular groove (2); an embedding block (13) is fixed on the surface of the cylinder (12); the embedding block (13) is located inside the embedding groove (4); a circular cavity (5) is provided on the inner wall of one side of the embedding groove (4) and near the center; a square groove (6) is provided at the top of the body (1) and located between the circular cavities (5); the square groove (6) passes through the first bidirectional screw (7) and is rotatably connected to its bearing; both ends of the first bidirectional screw (7) are embedded in the circular cavity (5) and are sleeved with a movable sleeve (8) threadedly connected; the movable sleeve (8) is provided with a movable sleeve (8) threadedly connected to the movable sleeve (8); ...); the movable sleeve (8) is provided with a movable sleeve (8) and the movable sleeve (8) is provided with a movable sleeve (8) and the movable sleeve (8) is provided with a movable sleeve (8) and the movable sleeve (8) is provided with a movable sleeve (8) and the movable sleeve (8) is provided with a movable sleeve (8) and the movable sleeve (8) is provided A clamping block (11) is fixed to one end of the sleeve (8), a clamping groove (14) is provided on one side wall of the clamping block (11), the clamping block (11) is located inside the clamping groove (14) and is matched with the clamping groove (14), two side walls of the body (1) are provided with T-shaped grooves (17), a clamping plate (18) is embedded inside the T-shaped groove (17), a connecting plate (19) is fixedly connected to one side wall of the clamping plate (18), both ends of the connecting plate (19) are fixedly connected to a support frame (20), a second bidirectional screw (21) is provided inside the T-shaped groove (17) and located on one side of the clamping plate (18), both ends of the second bidirectional screw (21) are sleeved and threadedly connected with a moving plate (22), one side wall of the moving plate (22) is fixedly connected with a clamping rod (23), the other end of the clamping rod (23) is embedded in the inner walls at both ends of the clamping plate (18) and is slidably connected thereto.

2. A low-altitude UAV according to claim 1, characterized in that: The inner wall of the circular cavity (5) is symmetrically provided with a limiting groove (10); the surface of the movable sleeve (8) is symmetrically fixedly connected to a limiting plate (9); the limiting plate (9) is located inside the limiting groove (10) and is slidably connected thereto.

3. A low-altitude UAV according to claim 1, characterized in that: A rotating drum (16) is sleeved and fixed on the surface of the first bidirectional screw (7) and located at the square groove (6), and the surface of the rotating drum (16) is provided with anti-slip grooves.

4. A low-altitude UAV according to claim 1, characterized in that: One end of the second bidirectional screw (21) is rotatably connected to a bearing on the inner wall of one end of the T-shaped slot (17), and the other end of the second bidirectional screw (21) passes through the inner wall of the other end of the T-shaped slot (17) and is rotatably connected to the bearing.

5. A low-altitude UAV according to claim 1, characterized in that: One end of the second bidirectional screw (21) is fixedly connected to a rotating piece (24), and a surface of the rotating piece (24) is provided with anti-slip grooves.

6. A low-altitude UAV according to claim 1, characterized in that: A storage battery (25) is installed inside the machine body (1).

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