An auxiliary device for a drone to pay out wires

Abstract

The present invention relates to the technical field of unmanned aerial vehicles, and discloses an auxiliary device for wire laying of an unmanned aerial vehicle. Two sets of buffer column mechanisms are symmetrically installed below the plate frame of the mounting plate frame. The number of wound ropes of the rope winding mechanism is two sets, and the rope winding mechanism is hooked to the two sets of buffer column mechanisms through two sets of wound ropes. The hook is installed at the bottom end of the plate frame of the lifting bracket. When using the auxiliary device for wire laying to assist the unmanned aerial vehicle in carrying out cargo lifting and transportation work, by using the winding and unwinding of the wound ropes by the inverted rope winding mechanism, the overall structure of the wire laying auxiliary device and the hook can always maintain the same center of gravity. Then, by using the combined gravity of the overall structure of the auxiliary device and the hook, the gravity stability of the wound ropes is improved, and the situation of wind sway of the wound ropes under the action of external wind force is avoided. Moreover, by using the double decompression and buffering of the buffer column mechanism, the gentle stability of cargo lifting and placement can be improved, and the impact caused by sudden lifting can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and more particularly to an auxiliary device for wire laying of an unmanned aerial vehicle. Background Art

[0002] An unmanned aerial vehicle is an unpiloted aircraft controlled by a radio remote control device and a self - contained program control device. It was initially used in the field of war. With the gradual maturity of unmanned aerial vehicle technology, the manufacturing cost and entry threshold have decreased, and the consumer - grade unmanned aerial vehicle market has gradually boomed. The civil unmanned aerial vehicle market has a broad prospect and is widely used in fields such as aerial photography, power line inspection, news reporting, environmental monitoring, and express delivery. Especially in fields such as express delivery, unmanned aerial vehicles are often used to transport goods by express, saving transportation time. When using an unmanned aerial vehicle to hoist and transport goods, etc., the form of wire laying is usually adopted, placing the wire rope at a certain height to carry out the hanging and transportation work of the goods.

[0003] However, for the wire ropes currently used in the hoisting and transportation of unmanned aerial vehicles, during the process of winding and unwinding, it is extremely easy to shake and swing due to the action of external wind or the inertia of the unmanned aerial vehicle itself, increasing the intensity of the staff in taking and placing the hook on the wire rope. Therefore, those skilled in the art have provided an auxiliary device for wire laying of an unmanned aerial vehicle to solve the problems raised in the above - mentioned background art. Summary of the Invention

[0004] The purpose of the present invention is to provide an auxiliary device for wire laying of an unmanned aerial vehicle to solve the problems raised in the above - mentioned background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An auxiliary device for wire laying of an unmanned aerial vehicle, comprising a mounting plate frame, a buffer column mechanism, a lifting bracket, a wire winding mechanism, and a hook;

[0006] The number of the buffer column mechanisms is two groups, and the two groups of buffer column mechanisms are symmetrically installed under the plate frame of the mounting plate frame;

[0007] The wire winding mechanism is installed through both sides of the plate frame of the lifting bracket, and the number of wire windings of the wire winding mechanism is two groups. The wire winding mechanism is connected to the two groups of buffer column mechanisms through two groups of wires;

[0008] The hook is installed at the bottom end of the plate frame of the lifting bracket.

[0009] As a further solution of the present invention: The buffer column mechanism includes a guiding sleeve and a knob seat, and the guiding sleeve is fixedly screwed to the knob seat. Above the support of the knob seat, there is a first buffer spring, and at the top of the spring seat of the first buffer spring, there is a buffer pressure seat. Above the support of the buffer pressure seat, two groups of second buffer springs are symmetrically arranged. The top ends of the spring seats of the two groups of second buffer springs are fixedly connected to the buffer struts, and inside the two groups of second buffer springs, there are arm force guide rods guiding the buffer struts. In the middle of the base of the buffer strut, there is an arm force pull rod passing through the buffer pressure seat, the first buffer spring and extending out of the knob seat, and at the bottom end of the arm of the arm force pull rod, there is a traction sling.

[0010] As a further solution of the present invention: The outer diameters of the buffer pressure seat and the buffer strut are both adapted to the inner diameter of the guiding sleeve.

[0011] As a further solution of the present invention: Inside the column body of the buffer strut, guiding chutes adapted to the two groups of arm force guide rods are symmetrically provided.

[0012] As a further solution of the present invention: The rope winding mechanism includes two groups of winding shells installed on both sides of the hoisting support plate frame. Inside the winding shell, at the lower half position, there is a first transmission shaft connected through, and at the upper half position inside the winding shell, two groups of second transmission shafts are symmetrically connected. At the shaft ends of the two groups of second transmission shafts, there are two groups of cable traction rollers that are mutually engaged. At both ends of the shaft of the first transmission shaft, there are winding discs, and inside the shafts of the two groups of winding discs, there are ropes wound through the cable traction rollers.

[0013] As a further solution of the present invention: On one side of the two groups of winding shells, there is a winding motor corresponding to the output end of the first transmission shaft, and on the other side of the two groups of winding shells, there is an electric control box, and the weight of the electric control box is the same as that of the winding motor.

[0014] As a further solution of the present invention: At one end output of the first transmission shaft, there is a first transmission gear. At the one end output of the two groups of second transmission shafts, there are two groups of second transmission gears that are mutually engaged, and the first transmission gear and the second transmission gear are meshed and driven through a synchronous gear.

[0015] As a further solution of the present invention: On the roller surface of the cable traction roller, there is a cable traction groove adapted to the rope, and the cable traction groove is a spiral structure.

[0016] As a further solution of the present invention: At the top end of the hook seat of the hook, there is a rotating shaft sleeve, and the hook is rotatably connected to the hoisting support through the rotating shaft sleeve.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] When the present invention utilizes the line-releasing auxiliary device to assist the unmanned aerial vehicle in lifting and transporting cargo, the present invention utilizes an inverted rope winding mechanism to wind and release the rope, which can enable the overall structure of the line-releasing auxiliary device and the hook to always maintain the same center of gravity, and then utilizes the gravity combination of the overall structure of the auxiliary device and the hook to improve the gravity stability of the rope, avoid the rope from swinging due to wind under the action of external wind force, and improve its convenience of use. When the rope is used to lift and transport cargo, the double decompression buffer of the buffer column mechanism is utilized to improve the smoothness and stability of cargo lifting and placing, and reduce the impact caused by sudden lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The schematic diagram of the structure of a UAV line-releasing auxiliary device is shown in FIG.

[0020] Figure 2 It is a structural schematic diagram of a buffer column mechanism in a UAV line-releasing auxiliary device;

[0021] Figure 3 It is a structural schematic diagram of a rope winding mechanism in a UAV line-releasing auxiliary device;

[0022] Figure 4 It is a plan view of a rope winding mechanism in a UAV line-releasing auxiliary device;

[0023] Figure 5 It is a transmission schematic diagram of a rope winding mechanism in a UAV line-releasing auxiliary device;

[0024] Figure 6 The figure is a schematic diagram of the structure of a cable traction roller in a UAV line-releasing auxiliary device.

[0025] In the figure: 1. mounting plate frame; 2. buffer column mechanism; 21. guide sleeve; 22. knob seat; 23. arm force pull rod; 24. traction lifting ring; 25. first buffer spring; 26. buffer pressure seat; 27. arm force guide rod; 28. second buffer spring; 29. buffer pillar; 210. guide slide; 3. lifting bracket; 4. rope winding mechanism; 41. winding shell; 42. electric control box; 43. winding motor; 44. rope winding; 45. first transmission shaft; 46. reel; 47. second transmission shaft; 48. cable traction roller; 49. first transmission gear; 410. synchronous gear; 411. second transmission gear; 412. cable traction groove; 5. hook. DETAILED DESCRIPTION

[0026] See also Figures 1 to 6, in the embodiment of the present invention, an auxiliary device for a drone to pay out a wire includes a mounting plate frame 1, a buffer column mechanism 2, a lifting bracket 3, a wire winding mechanism 4, and a hook 5. The number of the buffer column mechanisms 2 is two, and the two buffer column mechanisms 2 are symmetrically installed under the plate frame of the mounting plate frame 1. The buffer column mechanism 2 includes a guide sleeve 21 and a knob seat 22, and the guide sleeve 21 and the knob seat 22 are screwed and fixed. A first buffer spring 25 is arranged above the support of the knob seat 22, and a buffer pressure seat 26 is arranged at the top of the spring seat of the first buffer spring 25. Two groups of second buffer springs 28 are symmetrically arranged above the support of the buffer pressure seat 26. The top ends of the spring seats of the two groups of second buffer springs 28 are fixedly connected to a buffer column 29, and an arm force guide rod 27 guiding the buffer column 29 is arranged inside each of the two groups of second buffer springs 28. A through hole is formed in the middle of the base of the buffer column 29, passing through the buffer pressure seat 26 and the first buffer spring 25 and extending out of the knob seat 22 to form an arm force pull rod 23. A traction sling 24 is arranged at the bottom end of the arm of the arm force pull rod 23. The outer diameters of the buffer pressure seat 26 and the buffer column 29 are adapted to the inner diameter of the guide sleeve 21. Guide chutes 210 adapted to the two arm force guide rods 27 are symmetrically formed inside the column body of the buffer column 29. During the process of using the drone to lift goods, when the drone lifts the goods upward, the gravity of the goods is transmitted to the arm force pull rod 23 through the wire 44. The arm force pull rod 23 is subjected to downward gravity, pulling the buffer column 29 to slide in the guide sleeve 21. Then, by the guiding engagement of the guide chute 210 on the buffer column 29 and the arm force guide rod 27, the second buffer spring 28 is elastically compressed. By the elastic compression of the second buffer spring 28, preliminary decompression and buffering are carried out on the goods lifted by the drone. Further, while the second buffer spring 28 is compressed, the downward pressure is synchronously transmitted to the buffer pressure seat 26, pressing the first buffer spring 25 to be elastically compressed. By the elastic compression of the first buffer spring 25, further decompression and buffering are carried out on the goods lifted by the drone, improving the smooth stability of lifting and placing the goods and reducing the pressure impact caused by sudden lifting.

[0027] The rope winding mechanism 4 is installed through both sides of the plate frame of the lifting bracket 3, and the number of ropes wound by the rope winding mechanism 4 is two groups. The rope winding mechanism 4 is connected to the two buffer column mechanisms 2 through two groups of wound ropes. The rope winding mechanism 4 includes two groups of winding shells 41 installed on both sides of the plate frame of the lifting bracket 3. A first transmission shaft 45 is connected through the lower half part inside the shell of the winding shell 41, and two groups of second transmission shafts 47 are symmetrically connected at the upper half part inside the shell of the winding shell 41. Two groups of cable traction rollers 48 that are mutually aligned are symmetrically arranged at the shaft rod ends of the two groups of second transmission shafts 47. Reels 46 are arranged at both ends of the shaft rod of the first transmission shaft 45, and wound ropes 44 that penetrate through the cable traction rollers 48 are wound inside the reel shafts of the two groups of reels 46. A winding motor 43 corresponding to the output end of the first transmission shaft 45 is installed on one side of the two groups of winding shells 41, and an electric control box 42 is installed on the other side of the two groups of winding shells 41. The weight of the electric control box 42 is the same as that of the winding motor 43. When using a drone to lift goods, after the drone flies directly above the goods, the electric control box 42 supplies power to control the winding motor 43 to work, driving the first transmission shaft 45 to rotate, driving the reel 46, and winding and releasing the wound rope 44 from the reel 46, and vertically releasing it along the alignment end of the cable traction roller 48. In the way of inverted hanging and lowering, the overall structure of the wire releasing auxiliary device and the hook 5 are lowered together, so that the overall structure of the wire releasing auxiliary device and the hook 5 always maintain the same center of gravity. Then, by using the combined gravity of the overall structure of the auxiliary device and the hook 5, the gravity stability of the wound rope is improved, avoiding the situation of wind sway of the wound rope under the action of external wind, improving its convenient use. And when the hook 5 is lowered to an appropriate height, the goods are hung on the hook 5, and stable flight transportation work of the goods is carried out.

[0028] A first transmission gear 49 is installed at one output end of the first transmission shaft 45. Two groups of second transmission gears 411 that are mutually aligned are arranged at one output ends of the two groups of second transmission shafts 47. And the first transmission gear 49 and the second transmission gears 411 are meshed and driven through a synchronous gear 410. A cable traction groove 412 adapted to the wound rope 44 is formed on the roller surface of the cable traction roller 48, and the cable traction groove 412 is a spiral structure. During the process of using a drone to lift goods, while the first transmission shaft 45 rotates, it drives the first transmission gear 49 to rotate. Through the meshing transmission of the synchronous gear 410, the second transmission gears 411 rotate. By using the combined transmission of the two groups of second transmission gears 411, the second transmission shafts 47 are driven to rotate symmetrically, so that the cable traction rollers 48 rotate synchronously with the reel 46. Then, during the alignment rotation of the cable traction rollers 48, by using the cable traction groove 412 with a spiral structure on its roller surface, the wound rope 44 on the reel 46 is guided, so that the wound rope 44 is always wound and released along the reel shaft of the reel 46, avoiding the situation of winding and wire-off.

[0029] The hook 5 is installed at the bottom end of the plate frame of the lifting bracket 3. A rotating shaft sleeve is installed at the top end of the hook seat of the hook 5, and the hook 5 is rotatably connected to the lifting bracket 3 through the rotating shaft sleeve. During the process of using the drone to lift the goods, by setting the rotating shaft sleeve at the top end of the hook seat of the hook 5, the hook 5 can maintain good rotational transmission performance, and the lifting orientation of the hook 5 can be flexibly adjusted.

[0030] The working principle of the present invention is as follows: When using the drone to lift the goods, after the drone flies directly above the goods, the power supply of the electric control box 42 is used to control the working of the winding motor 43, drive the first transmission shaft 45 to rotate, drive the reel 46, and wind and release the winding rope 44 from the reel 46, and vertically release it along the mating end of the cable traction roller 48. In the way of hanging and lowering, the overall structure of the wire release auxiliary device and the hook 5 are lowered together, so that the overall structure of the wire release auxiliary device and the hook 5 always maintain the same center of gravity. Then, by using the combined gravity of the overall structure of the auxiliary device and the hook 5, the gravity stability of the winding rope is improved, and the situation of wind swing of the winding rope under the action of external wind force is avoided. And when the hook 5 is lowered to an appropriate height, the goods are hung on the hook 5 to carry out stable flight transportation work on the goods. When the drone lifts the goods upward, the gravity of the goods is transmitted to the arm force pull rod 23 through the winding rope 44. The arm force pull rod 23 is subjected to downward gravity, pulls the buffer strut 29 to slide in the guide sleeve 21, and presses the second buffer spring 28 to elastically compress. By using the elastic compression of the second buffer spring 28, preliminary decompression and buffering are carried out on the drone lifting the goods. While the second buffer spring 28 is further compressed, the downward pressure is synchronously transmitted to the buffer pressure seat 26, pressing the first buffer spring 25 to elastically compress. By using the elastic compression of the first buffer spring 25, secondary decompression and buffering are carried out on the drone lifting the goods, improving the smooth stability of the lifting and placing of the goods, reducing the pressure impact caused by sudden lifting. And after the goods are lowered, the winding function of the winding rope mechanism 4 is used to wind the winding rope 44, and the winding rope mechanism 4 is wound and lifted and stored in the abdomen of the drone.

[0031] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An auxiliary device for a drone to pay out wires, characterized in that, It includes a mounting plate frame (1), a buffer column mechanism (2), a lifting bracket (3), a rope winding mechanism (4), and a hook (5). The number of the buffer column mechanisms (2) is two groups, and the two groups of buffer column mechanisms (2) are symmetrically installed under the plate frame of the mounting plate frame (1). The rope winding mechanism (4) is installed through both sides of the plate frame of the lifting bracket (3), and the number of ropes wound by the rope winding mechanism (4) is two groups. The rope winding mechanism (4) is hooked to the two groups of buffer column mechanisms (2) through two groups of ropes. The hook (5) is installed at the bottom end of the plate frame of the lifting bracket (3). The buffer column mechanism (2) includes a guide sleeve (21) and a knob seat (22), and the guide sleeve (21) and the knob seat (22) are fixed by screwing. A first buffer spring (25) is arranged above the support of the knob seat (22), and a buffer pressure seat (26) is arranged at the top end of the spring seat of the first buffer spring (25). Two groups of second buffer springs (28) are symmetrically arranged above the support of the buffer pressure seat (26). The top ends of the spring seats of the two groups of second buffer springs (28) are both fixedly connected to a buffer column (29), and an arm force guide rod (27) for guiding with the buffer column (29) is arranged inside each of the two groups of second buffer springs (28). A arm force pull rod (23) that penetrates the buffer pressure seat (26), the first buffer spring (25) and extends out of the knob seat (22) is arranged in the middle of the base of the buffer column (29), and a traction ring (24) is arranged at the bottom end of the arm of the arm force pull rod (23). The rope winding mechanism (4) includes two groups of winding shells (41) installed on both sides of the plate frame of the lifting bracket (3). A first transmission shaft (45) is connected through the lower half part inside the shell of the winding shell (41), and two groups of second transmission shafts (47) are symmetrically connected inside the upper half part of the shell of the winding shell (41). Two groups of cable traction rollers (48) that are opposite to each other are symmetrically arranged at the shaft rod ends of the two groups of second transmission shafts (47). Reels (46) are arranged at both ends of the shaft rod of the first transmission shaft (45), and ropes (44) that penetrate the cable traction rollers (48) are wound inside the reels of the two groups of reels (46).

2. The drone wire laying auxiliary device according to claim 1, wherein, The outer diameters of the buffer pressure seat (26) and the buffer column (29) are both adapted to the inner diameter of the guide sleeve (21).

3. The drone wire laying auxiliary device according to claim 1, wherein, Guide chutes (210) adapted to the two groups of arm force guide rods (27) are symmetrically arranged inside the column body of the buffer column (29).

4. The drone wire laying auxiliary device according to claim 1, characterized in that, A winding motor (43) corresponding to the output end of the first transmission shaft (45) is installed on one side of the two groups of winding shells (41), and an electric control box (42) is installed on the other side of the two groups of winding shells (41). The weight of the electric control box (42) is the same as that of the winding motor (43).

5. The drone wire laying auxiliary device according to claim 1, characterized in that, One end output end of the first transmission shaft (45) is provided with a first transmission gear (49). One end output ends of two groups of the second transmission shafts (47) are provided with two groups of second transmission gears (411) which are engaged with each other. The first transmission gear (49) and the second transmission gears (411) are in meshing transmission through a synchronous gear (410).

6. The drone wire laying auxiliary device according to claim 1, characterized in that A cable traction groove (412) adapted to the winding rope (44) is formed on the roller surface of the cable traction roller (48), and the cable traction groove (412) is of a spiral structure.

7. The drone wire laying auxiliary device according to claim 1, wherein, A rotary shaft sleeve is installed at the top end of the hook seat of the hook (5), and the hook (5) is rotatably connected to the lifting bracket (3) through the rotary shaft sleeve.

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