Hook for freight unmanned aerial vehicle

Abstract

The utility model discloses a hook for a cargo transportation unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicle transportation and comprises an unmanned aerial vehicle body, a connecting pipe is fixedly mounted at the bottom end of the unmanned aerial vehicle body, a butt joint structure for automatic butt joint is inserted into the connecting pipe, and a hook for hanging cargoes is fixedly mounted at the bottom end of the butt joint structure. Clamping frames used for assisting in stable automatic butt joint are rotationally installed on the two sides of the connecting pipe, one ends of the clamping frames are rotationally connected with control structures used for controlling the clamping frames to stretch, and spin lock structures used for locking the clamping frames are fixedly installed at the other ends of the clamping frames. A connecting pipe and a connecting rod are in butt joint and move downwards, a movable block retracts along a clamping block, meanwhile, a first spring pushes the movable block to move to the position between the clamping block and a bottom block, fixed connection between an unmanned aerial vehicle body and a lifting hook is completed, and close-distance contact between personnel and the unmanned aerial vehicle can be reduced; and safety risks and health problems caused by the fact that the stability of the unmanned aerial vehicle is influenced by pulling the unmanned aerial vehicle through manual operation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle transportation, in particular to a hook for a cargo unmanned aerial vehicle. Background Art

[0002] With the development of technology, the application of drones in the field of express delivery has become more and more common, effectively improving logistics efficiency and reducing transportation costs.

[0003] A Chinese patent discloses a drone with a hook (publication number CN 211468795 U), which includes a drone body and a hanging mechanism, wherein the hanging mechanism includes at least one hook for placing objects, at least two balancing devices, a support plate and at least two supporting feet, wherein the support plate is fixed to the bottom of the drone body, the hook for placing objects is fixed to the bottom of the support plate, the supporting feet are fixed to symmetrical positions at the bottom of the support plate, the balancing device is fixed to symmetrical positions at the bottom of the support plate, and the balancing device is electrically connected to the drone body. However, in actual use, the patent requires manual hanging of goods on the hook, which results in close contact between personnel and the drone, increasing safety risks. The high-speed rotating blades of the drone itself are dangerous, and manual hanging of goods may also pull the drone, affecting the balance of the drone itself, making it impossible to ensure the stable flight of the drone, which may cause the drone to fall. Utility Model Content

[0004] The purpose of the utility model is to provide a hook for a cargo drone to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hook for a cargo drone, comprising a drone body, a connecting pipe fixedly mounted at the bottom end of the drone body, a docking structure for automatic docking plugged into the interior of the connecting pipe, a hook for hanging cargo fixedly mounted at the bottom end of the docking structure, a clamping frame for assisting in stabilizing the automatic docking rotatably mounted on both sides of the connecting pipe, a control structure for controlling the extension of the clamping frame rotatably connected to one end of the clamping frame, and a rotating lock structure for locking the clamping frame fixedly mounted at the other end of the clamping frame;

[0007] The docking structure includes an adjustment structure, which is slidably installed inside the connecting pipe. A block for limiting the position of the adjustment structure is installed at the top of the adjustment structure. A fixing rod is fixedly connected to the bottom end of the blocking block. A bottom block for preventing the adjustment structure from falling off is slidably installed at the bottom end of the fixing rod.

[0008] As a further solution of the utility model, the adjustment structure includes a movable rod, which is slidably installed inside the connecting tube, and one end of the movable rod is fixedly installed with a movable block for interlocking and limiting with the clamping block and the bottom block, and the outer sleeve of the movable rod is provided with a spring for providing power for the movable block to move.

[0009] As a further solution of the utility model, the control structure includes a movable plate, which is slidably installed inside the connecting tube, and the top of the movable plate is fixedly connected with a rack for controlling the rotation of the clamping frame, and both sides of the rack are meshed with gear 1 for driving the clamping frame to rotate, and the gear 1 is rotatably connected to the clamping frame through a connecting piece.

[0010] As a further solution of the utility model, an auxiliary block for assisting the movable plate to maintain upright movement is fixedly installed on the outer surface of the movable plate, and a movable groove for providing movement of the auxiliary block is opened on the inner wall of the connecting tube. The movable plate is installed on the top of the clamping block, and the two are connected by spring 2.

[0011] As a further solution of the utility model, the rotary lock structure includes a push plate and a lock tongue, and the push plate and the lock tongue are respectively fixedly connected to the outer surface of the clamping frame by means of fixing parts rotatably installed on their outer surfaces, and the internal rotation of the lock tongue is connected to a gear 2 for driving the lock tongue to rotate and flip, and a serrated block for driving the gear 2 to rotate is fixedly installed on the top of the push plate.

[0012] As a further solution of the utility model, the hook is fixedly installed at the bottom end of the connecting rod, the inner cavity of the hook is rotatably connected with a pawl, a spring three is fixedly installed on one side of the pawl, and a hinge is installed between the pawl and the hook.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the utility model is used, the connecting tube and the connecting rod are docked and moved downward, and the movable block retracts along the clamping block. At the same time, the spring pushes the movable block to move between the clamping block and the bottom block, thereby completing the fixed connection between the drone body and the hook. This can reduce the close contact between personnel and the drone, avoid the safety risks and health problems caused by manual operation that may pull the drone and affect its stability, prevent accidental injuries or accidents, and improve docking efficiency.

[0015] 2. When the utility model is used, by setting the clamping frame and the clamping ring to clamp the connecting rod, and locking between the push plate and the lock tongue, the connection between the connecting pipe and the connecting rod is effectively guaranteed, the stability of the device is enhanced, and the loosening and falling of the hook caused by the connecting rod due to bumps during the flight of the drone is avoided, thereby ensuring the safety of the goods during the drone transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the overall structure of a hook for a cargo drone.

[0017] Figure 2 This is a cross-sectional view of the internal structure of a hook for a cargo drone.

[0018] Figure 3 The present invention is a structural diagram of a docking structure in a hook for a cargo drone.

[0019] Figure 4 The figure is a structural diagram of a control structure in a hook for a cargo drone.

[0020] Figure 5 The present invention is a structural diagram of a hook transfer lock structure for a cargo drone.

[0021] Figure 6 The present invention is a structural diagram of a hook in a hook for a cargo drone.

[0022] In the figure: 1. UAV body; 2. Connecting pipe; 3. Hook; 301. Ratchet; 302. Spring three; 4. Clamping frame; 5. Adjusting structure; 501. Block; 502. Fixed rod; 503. Bottom block; 504. Connecting rod; 505. Movable rod; 506. Movable block; 507. Positioning plate; 508. Spring one; 6. Moving plate; 601. Rack; 602. Gear one; 603. Connecting piece; 604. Clamping ring; 605. Auxiliary block; 606. Spring two; 7. Pushing plate; 701. Lock tongue; 702. Gear two; 703. Sawtooth block; 8. Connecting seat. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1: Please refer to Figure 1-Figure 3A hook for a cargo drone comprises a drone body 1, a connecting tube 2 is fixedly installed at the bottom end of the drone body 1, a docking structure for automatic docking is inserted inside the connecting tube 2, a hook 3 for hanging cargo is fixedly installed at the bottom end of the docking structure, a clamping frame 4 for assisting in stabilizing the automatic docking is rotatably installed on both sides of the connecting tube 2, a control structure for controlling the extension of the clamping frame 4 is rotatably connected to one end of the clamping frame 4, and a rotating lock structure for locking the clamping frame 4 is fixedly installed at the other end of the clamping frame 4, specifically, the connecting tube 2 is fixedly connected to the bottom end of the drone body 1 through a connecting seat 8 fixedly installed at the top end thereof;

[0025] The docking structure includes an adjustment structure 5 for automatically controlling the docking or disengagement state of the device. The adjustment structure 5 is slidably installed inside the connecting pipe 2. A clamping block 501 for limiting the position of the adjustment structure 5 is installed at the top of the adjustment structure 5. A fixing rod 502 is fixedly connected to the bottom end of the clamping block 501. A bottom block 503 for preventing the adjustment structure 5 from falling off is slidably installed at the bottom end of the fixing rod 502. The bottom block 503 can move up and down on the outer wall of the fixing rod 502. A gap is set between the clamping block 501 and the bottom block 503, and the adjustment structure 5 is inserted into the gap.

[0026] Specifically, the bottom end of the bottom block 503 is fixedly connected to a connecting rod 504, and the bottom end of the connecting rod 504 is fixedly connected to the top end of the hook 3;

[0027] The adjustment structure 5 includes a movable rod 505, which is slidably installed inside the connecting tube 2, and a movable block 506 for mutually engaging and limiting with the clamping block 501 and the bottom block 503 is fixedly installed at one end of the movable rod 505, and the other end of the movable rod 505 passes through the outer wall of the connecting tube 2 and is fixedly installed with a positioning plate 507 for preventing the movable rod 505 from falling off, and a spring 508 for providing moving power for the movable block 506 is sleeved on the outside of the movable rod 505, and one end of the spring 508 is fixedly connected to the movable block 506, and the other end is fixedly connected to the inner wall of the connecting tube 2;

[0028] Specifically, the drone body 1 drives the connecting tube 2 to descend and dock with the docking structure, and the docking structure is inserted into the connecting tube 2. The connecting tube 2 continues to descend, driving the movable block 506 to move into the gap between the clamping block 501 and the bottom block 503, so that the movable block 506 is stuck, and automatic docking is achieved;

[0029] More specifically, the clamping block 501 and the bottom block 503 are both set to be trapezoids, but the two are set to be trapezoids in opposite directions, wherein the clamping block 501 is set to be a regular trapezoid, and the bottom block 503 is the opposite, and the side of the movable block 506 close to the clamping block 501 is set to an inclined surface and fits with the outer surfaces of the clamping block 501 and the bottom block 503. The inclined angle of the outer surface of the clamping block 501 is used to slowly squeeze the movable block 506 back, and at the same time, the top surface of the bottom block 503 is used to clamp the movable block 506, and the inclined surface of the outer surface of the bottom block 503 facilitates the release of the movable block 506 to complete the automatic unhooking work.

[0030] Example 2: Please refer to Figure 2 , Figure 4 The control structure includes a moving plate 6, which is slidably mounted inside the connecting tube 2. A rack 601 for controlling the rotation of the clamping frame 4 is fixedly connected to the top of the moving plate 6. Both sides of the rack 601 are meshed with a gear 602 for driving the clamping frame 4 to rotate. The gear 602 is rotatably connected to the clamping frame 4 through a connecting member 603.

[0031] Specifically, the connecting member 603 is rotatably connected to the gear 1 602 and the inner part of the clamping frame 4 respectively through a shaft fixedly installed inside, and a rotation groove for providing the rotation of the clamping frame 4 is opened on both sides of the connecting pipe 2, and the clamping frame 4 is fixedly connected to the rotation groove through a rotation rod fixedly installed inside the clamping frame 4;

[0032] More specifically, a clamp ring 604 for supporting and fixing the connecting rod 504 is fixedly installed at the bottom end of the clamp frame 4. The rack 601 is connected to the gear 1 602 to drive the clamp frame 4 to rotate, so that the clamp ring 604 clamps the connecting rod 504 to keep it upright, so as to facilitate the docking of the connecting pipe 2, and at the same time prevent the UAV body 1 from being bumped during flight, causing the connecting rod 504 to fall off accidentally. In addition, the original state of the clamp frame 4 is the unfolded state;

[0033] The outer surface of the moving plate 6 is fixedly installed with an auxiliary block 605 for assisting the moving plate 6 to maintain upright movement. The inner wall of the connecting tube 2 is provided with a moving groove for providing movement of the auxiliary block 605. The moving plate 6 is installed on the top of the card block 501, and the two are connected by a spring 2 606. Specifically, the top of the spring 2 606 is fixedly connected to the bottom end of the moving plate 6, and the bottom end of the spring 2 606 is fixedly installed with a connecting plate, which fits with the top end of the card block 501. The thrust of the spring 2 606 itself pushes the moving plate 6 and the card block 501 to separate from each other to prevent the drone from falling. The main body 1 generates bumps during the flight, causing the block 501 to move freely inside the connecting tube 2, and then pushes up the movable plate 6 to drive the clamping frame 4 to rotate, so that the clamping frame 4 is separated from the connecting rod 504, affecting the stability of the device during use. At the same time, the spring 2 606 can be compressed. When the drone body 1 drives the connecting tube 2 to connect the movable plate 6 to move downward, the force applied to the spring 2 606 is greater than the range that the spring 2 606 itself can withstand. Because the block 501 is limited in position by the movable block 506, the movable plate 6 is pushed upward in the opposite direction to realize the rotation of the clamping frame 4.

[0034] See also Figure 2 , Figure 4-Figure 5 The rotary lock structure includes a push plate 7 and a lock tongue 701. The push plate 7 and the lock tongue 701 are fixedly connected to the outer surface of the clamping frame 4 by rotating the fixing parts installed on the outer surface thereof. The internal rotation connection of the lock tongue 701 is used to drive the lock tongue 701 to rotate and flip. The top of the push plate 7 is fixedly installed with a sawtooth block 703 used to drive the gear 2 702 to rotate, and it is meshed with the outer surface of the gear 2 702. The interior of the push plate 7 is provided with a slot hole for the lock tongue 701 to pass through the locking push plate 7. Specifically, the interior of the connecting rod 504 is provided with a through slot. The two groups of clamping frames 4 are close to the connecting rod 504, so that the push plate 7 and the lock tongue 701 extend into the through slot, allowing the lock tongue 701 to flip and penetrate the push plate 7, thereby further limiting the docking structure and avoiding accidental falling off.

[0035] See also Figure 1-Figure 2 , Figure 6 The hook 3 is fixedly mounted at the bottom end of the connecting rod 504, and the inner cavity of the hook 3 is rotatably connected with a pawl 301. A spring three 302 is fixedly mounted on one side of the pawl 301, and the other end of the spring three 302 is fixedly connected to the outer wall of the hook 3. The pawl 301 is automatically reset by the spring three 302. A hinge is installed between the pawl 301 and the hook 3 to facilitate the rotation of the pawl 301.

[0036] The working principle of the utility model is:

[0037] First, manually press the ratchet 301 to hang the cargo in the hook 3, and the spring three 302 pushes the ratchet 301 to reset to prevent the cargo from falling. When the personnel leave, the drone body 1 descends, allowing the connecting pipe 2 to dock with the connecting rod 504, and the clamping frame 4 assists the connecting rod 504 to stand upright, and the drone body 1 continues to descend. The movable block 506 moves to both sides along the block 501 until it moves between the block 501 and the bottom block 503. Driven by the spring one 508, the movable block 506 and the movable rod 505 are pushed inward, so that the movable block 506 is stuck between the block 501 and the bottom block 503, thereby completing the fixed connection between the drone body 1 and the hook 3. At the same time, when the connecting pipe 2 moves downward, it drives the movable plate 6 to squeeze the spring two 606, and then pushes the movable plate 6 in the opposite direction to drive the rack 601 to move up, so that the gear one 602 rotates accordingly to drive the two sets of clamping frames 4 to approach each other, so that the clamp ring 604 clamps the connecting rod 504 to further ensure the connection between the connecting pipe 2 and the connecting rod 504, and the pushing plate 7 and the locking tongue 701 are inserted into the inside of the connecting rod 504 and approach each other as the clamping frame 4 rotates, so that the serrated block 703 at the top of the pushing plate 7 pushes the gear 2 702 to rotate, so that the locking tongue 701 passes through the locking pushing plate 7, further ensuring the connection of the device to avoid accidental falling of the goods. Finally, the drone body 1 continues to descend, the movable block 506 retracts again, and moves to the bottom end of the bottom block 503 under the push of the spring 1 508. At this time, the drone body 1 rises, and the movable block 506 drives the bottom block 503 to move up, reducing the gap between the card block 501 and the bottom block 503, and at the same time releasing the squeeze on the spring 2 606, allowing the two sets of clamping frames 4 to unfold, completing the connection between the connecting pipe 2 and the connecting rod 504, and completing the automatic docking and falling off of the device.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hook for a cargo drone, comprising a drone body (1), characterized in that: A connecting pipe (2) is fixedly mounted on the bottom end of the drone body (1), a docking structure for automatic docking is inserted into the interior of the connecting pipe (2), a hook (3) for hanging cargo is fixedly mounted on the bottom end of the docking structure, a clamping frame (4) for assisting in stabilizing the automatic docking is rotatably mounted on both sides of the connecting pipe (2), a control structure for controlling the extension of the clamping frame (4) is rotatably connected to one end of the clamping frame (4), and a rotating lock structure for locking the clamping frame (4) is fixedly mounted on the other end of the clamping frame (4); The docking structure comprises an adjusting structure (5), the adjusting structure (5) being slidably mounted inside the connecting pipe (2), a clamping block (501) for limiting the position of the adjusting structure (5) being mounted on the top end of the adjusting structure (5), a fixing rod (502) being fixedly connected to the bottom end of the fixing rod (502), and a bottom block (503) for preventing the adjusting structure (5) from falling off being slidably mounted on the bottom end of the fixing rod (502).

2. A hook for a cargo drone according to claim 1, characterized in that: The adjustment structure (5) comprises a movable rod (505) which is slidably mounted inside the connecting tube (2); a movable block (506) which is used to engage and limit the movable block (501) and the bottom block (503) is fixedly mounted on one end of the movable rod (505); and a spring (508) which is used to provide moving power for the movable block (506) is sleeved on the outside of the movable rod (505).

3. The hook for a cargo drone according to claim 1, characterized in that: The control structure comprises a movable plate (6), wherein the movable plate (6) is slidably mounted inside the connecting tube (2), and a rack (601) for controlling the rotation of the clamping frame (4) is fixedly connected to the top of the movable plate (6), and gear 1 (602) for driving the clamping frame (4) to rotate is meshed on both sides of the rack (601), and the gear 1 (602) is rotationally connected to the clamping frame (4) via a connecting member (603).

4. The hook for a cargo drone according to claim 3, characterized in that: An auxiliary block (605) for assisting the movable plate (6) to maintain upright movement is fixedly mounted on the outer surface of the movable plate (6); a movable groove for providing movement for the auxiliary block (605) is provided on the inner wall of the connecting tube (2); the movable plate (6) is mounted on the top of the clamping block (501), and the two are connected via a second spring (606).

5. The hook for a cargo drone according to claim 1, characterized in that: The rotary lock structure comprises a push plate (7) and a lock tongue (701), wherein the push plate (7) and the lock tongue (701) are respectively fixedly connected to the outer surface of the clamping frame (4) through fixing parts rotatably mounted on the outer surfaces thereof, the lock tongue (701) is internally rotatably connected to a second gear (702) for driving the lock tongue (701) to rotate and flip, and a sawtooth block (703) for driving the second gear (702) to rotate is fixedly mounted on the top end of the push plate (7).

6. The hook for a cargo drone according to claim 1, characterized in that: The hook (3) is fixedly mounted on the bottom end of the connecting rod (504); a ratchet (301) is rotatably connected to the inner cavity of the hook (3); a spring three (302) is fixedly mounted on one side of the ratchet (301); and a hinge is installed between the ratchet (301) and the hook (3).

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