Cargo transportation unmanned aerial vehicle with suspension structure

Abstract

The utility model discloses a cargo transportation unmanned aerial vehicle with a suspension structure, and relates to the technical field of unmanned aerial vehicles, the cargo transportation unmanned aerial vehicle comprises an unmanned aerial vehicle main body, the bottom of the unmanned aerial vehicle main body is fixedly connected with a suspension frame, a winding disc is rotatably connected between the inner walls of the suspension frame, the outer side of the winding disc is wound with a suspension rope, and a swing cylinder is rotatably connected between the inner walls of the suspension frame. According to the utility model, the swinging cylinder is arranged, so that the swinging force of the goods when the goods are suspended can be transmitted to drive the turntable to rotate, and then the driving of one swinging direction is transmitted to the hollow belt pulley through the one-way transmission component, so that the driven belt pulley is driven to rotate through the transmission belt, and the winding disc is further driven to rotate to wind the suspension rope; in this way, the distance between the goods and the unmanned aerial vehicle is shortened until the hanging hook makes contact with the groove in the bottom of the fixing plate, the goods and the unmanned aerial vehicle are in relatively rigid connection, and then shaking is not likely to happen.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, and in particular to a cargo transport unmanned aerial vehicle with a suspension structure. Background Art

[0002] A drone, also known as an unmanned aircraft, is an unmanned aircraft that is controlled by radio remote control and self-contained programs. Due to its small size and unmanned advantages, it is widely used in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection and other fields.

[0003] A suspended structure transport drone is a drone that can suspend cargo and transport it. It is usually composed of a fuselage and one or more suspension devices. It can suspend and transport various types of cargo, such as medicines, food, water, etc. It can be operated by remote control or autonomous flight, and is efficient, fast and safe.

[0004] However, the existing suspended drones lift objects by hooks when in use. The objects are suspended under the drone by hooks and ropes, and will swing as the drone flies, thereby affecting the stability of the drone and the safety of cargo transportation. In addition, since the transport drone itself is used to transport cargo, if too many driving and control devices are set to reel in the suspension rope to stabilize the cargo, not only will the implementation cost be greatly increased, but it will also inevitably increase the load of the drone. Therefore, there is an urgent need to propose a cargo transport drone that can self-adjust and stabilize. Utility Model Content

[0005] The purpose of the utility model is to provide a cargo transport drone with a suspension structure to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] The slingshot is a kind of cargo transport drone with suspension structure, comprising a drone body, a suspension frame is fixedly connected to the bottom of the drone body, a winding drum is rotatably connected between the inner walls of the suspension frame, a suspension rope is wound around the outer side of the winding drum, a swing cylinder is rotatably connected between the inner walls of the suspension frame, the bottom of the suspension rope extends to the bottom of the suspension frame through the swing cylinder and is fixedly connected to a suspension hook, the outer side of the suspension frame is fixedly connected to an operation box, a hollow shaft is rotatably connected to the outer side of the suspension frame and located inside the operation box, one end of the hollow shaft is fixedly connected to a hollow pulley, a cavity is arranged inside the hollow pulley, a one-way transmission component is arranged inside the cavity, the one-way transmission component is used for one-way transmission of the swing generated when the object is suspended and transported to provide power to the winding drum to reel in the suspension rope, one end of the central axis of the swing cylinder extends to the inside of the cavity through the hollow shaft and is fixedly connected to a turntable, an unlocking component is arranged inside the turntable, and the unlocking component is used for releasing the suspension rope to unload the object.

[0008] By adopting the above technical solution, the force of the swinging of the goods when the goods are suspended can be transmitted, driving the turntable to rotate, and then the drive of one of the swing directions is transmitted to the hollow pulley through the one-way transmission component, so that the driven pulley is driven to rotate through the transmission belt, and then the winding disk is driven to rotate to reel up the suspension rope.

[0009] A further improvement of the technical solution of the utility model is that: the unlocking component includes a slide groove, the slide groove is opened on the outer side of the turntable, the slide groove is set as a through groove, and sliders are symmetrically slidably connected between the inner walls of the slide groove, and the sides of the sliders close to each other are opened. Transmission grooves communicating with the inside of the communicating groove are opened on both sides of the sliders, an operating rod is slidably connected to one side of the inner wall of the slide groove, one end of the operating rod is fixedly connected to a linkage rod, both ends of the linkage rod respectively extend to the inside of the communicating groove and are fixedly connected to the transmission rod, the outer side of the transmission rod is slidably connected to the inner wall of the transmission groove, the end of the transmission rod away from the linkage rod extends to the outside of the operating box and is fixedly connected to an operating buckle, and a return spring is sleeved on the outside of the operating rod and located inside the slide groove.

[0010] By adopting the above technical solution, when unlocking, the winding drum releases the suspension rope under the action of the gravity of the suspension hook itself, and when locking, the suspension rope cannot be further released.

[0011] A further improvement of the technical solution of the utility model is that the transmission groove is arranged as an inclined groove.

[0012] By adopting the above technical solution, when the transmission rod applies force to squeeze the transmission groove in a direction perpendicular to the slide groove, the transmission groove obtains a force toward the slide groove.

[0013] A further improvement of the technical solution of the utility model is that an iron sheet is fixedly connected to the outer side of the operating rod, and an electromagnet is fixedly connected to one side of the inner wall of the operating box, and the electromagnet cooperates with the iron sheet when energized.

[0014] By adopting the above technical solution, the electromagnet is energized by remote control, so that the electromagnet obtains magnetic force and attracts the iron sheet, thereby driving the operating rod to move.

[0015] A further improvement of the technical solution of the utility model is that the one-way transmission component includes an installation groove, the installation groove is arranged on a side away from the slider, the inner walls of the installation groove are rotatably connected with a pawl through a torsion spring, and an inner ratchet tooth is arranged on the inner side of the cavity, and the inner ratchet tooth is used in conjunction with the pawl.

[0016] By adopting the above technical solution, the pawl has movable space in a single direction so as to realize one-way transmission by driving the hollow belt pulley to rotate in a single direction through the inner ratchet teeth.

[0017] A further improvement of the technical solution of the utility model is that one end of the central axis of the winding disk extends to the interior of the operating box and is fixedly connected with a driven pulley, and the driven pulley is connected to the hollow pulley through a transmission belt.

[0018] By adopting the above technical solution, it is convenient to drive the driven pulley to rotate through the hollow pulley, thereby driving the winding reel to reel up.

[0019] A further improvement of the technical solution of the utility model is that a support frame is fixedly installed at the bottom of the drone body, a fixing plate is fixedly connected to the bottom of the suspension frame, and a groove is provided at the bottom of the fixing plate.

[0020] By adopting the above technical solution, the support frame can provide support for the drone body, and the groove provides a hanging hook for locking in to prevent it from continuing to swing.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] The utility model provides a cargo transport UAV with a suspension structure, which can transmit the force of the swinging of cargo when the cargo is suspended by arranging a swing cylinder, drive the turntable to rotate, and then transmit the drive of one swing direction to the hollow pulley through the one-way transmission component, so that the driven pulley is driven to rotate by the transmission belt, and then the winding disk is driven to rotate to wind up the suspension rope, so that the distance between the cargo and the UAV is shortened, until the suspension hook contacts the groove at the bottom of the fixed plate, the cargo and the UAV maintain a relatively rigid connection, and it is not easy to shake, which greatly increases the stability of the UAV.

[0023] The utility model provides a cargo transport UAV with a suspension structure, which drives the swing drum to swing by utilizing the swing of cargo and suspension rope, and causes the winding disk to perform winding operation through transmission. The process relies on the swing of cargo to drive the winding, and does not require additional power drive, thereby not only saving implementation costs, but also reducing the weight of power supply and control equipment required for driving, providing stable suspension transportation of cargo without affecting its carrying capacity, which is beneficial to practical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall cross-sectional schematic diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the utility model from a first perspective;

[0026] Figure 3 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0027] Figure 4 This is a schematic diagram of the internal structure of the hollow pulley of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the unlocking component of the utility model;

[0029] Figure 6 This is a schematic diagram of the principle of the hollow shaft and hollow pulley of the utility model;

[0030] Figure 7 It is a structural schematic diagram of the operating box of the utility model.

[0031] In the figure: 1. UAV body; 2. Suspension frame; 3. Winding reel; 4. Swinging cylinder; 5. Operating box; 6. Hollow shaft; 7. Hollow pulley; 8. Cavity; 9. Inner ratchet; 10. Turntable; 11. Slide groove; 12. Sliding block; 13. Mounting groove; 14. Ratchet; 15. Connecting groove; 16. Operating lever; 17. Linking lever; 18. Transmission groove; 19. Transmission lever; 20. Reset spring; 21. Iron sheet; 22. Operating buckle; 23. Electromagnet; 24. Driven pulley; 25. Support frame; 26. Suspension rope; 27. Suspension hook; 28. Fixing plate; 29. ​​Groove. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the embodiments: Example

[0033] like Figure 1 and Figure 6As shown, the utility model provides a cargo transport drone with a suspension structure, including a drone body 1, a suspension frame 2 is fixedly connected to the bottom of the drone body 1, a winding disk 3 is rotatably connected between the inner walls of the suspension frame 2, a suspension rope 26 is wound around the outer side of the winding disk 3, a swing cylinder 4 is rotatably connected between the inner walls of the suspension frame 2, the bottom of the suspension rope 26 extends to the bottom of the suspension frame 2 through the swing cylinder 4 and is fixedly connected to a suspension hook 27, an operating box 5 is fixedly connected to the outer side of the suspension frame 2, and the outer side of the suspension frame 2 and located inside the operating box 5 A hollow shaft 6 is rotatably connected, one end of the hollow shaft 6 is fixedly connected to a hollow pulley 7, a cavity 8 is arranged inside the hollow pulley 7, a one-way transmission component is arranged inside the cavity 8, the one-way transmission component is used to perform one-way transmission on the swing generated when the object is suspended and transported so as to provide power to the winding disk 3 for winding the suspension rope 26, one end of the central axis of the swing cylinder 4 extends to the inside of the cavity 8 through the hollow shaft 6 and is fixedly connected to a turntable 10, an unlocking component is arranged inside the turntable 10, and the unlocking component is used to release the suspension rope 26 to unload the object.

[0034] In this embodiment, by setting up the swing cylinder 4, the force of the swinging of the cargo when the cargo is suspended can be transmitted, driving the turntable 10 to rotate, and then through the one-way transmission component to transmit one of the swing directions of drive to the hollow pulley 7, so that the driven pulley is driven to rotate 24 through the transmission belt, and then the winding disk 3 is driven to rotate to wind up the suspension rope 26, so that the distance between the cargo and the drone body 1 is shortened. Example

[0035] like Figure 4 and Figure 5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the unlocking component includes a slide groove 11, which is opened on the outer side of the turntable 10, and the slide groove 11 is set as a through groove. Slide blocks 12 are symmetrically slidably connected between the inner walls of the slide groove 11, and a connecting groove 15 is opened on the side close to the slide blocks 12. Transmission grooves 18 communicating with the inside of the connecting groove 15 are opened on both sides of the slide blocks 12. An operating rod 16 is slidably connected to one side of the inner wall of the slide groove 11, and a linkage rod 17 is fixedly connected to one end of the operating rod 16. Both ends of the linkage rod 17 extend to the inside of the connecting groove 15 and are fixedly connected with a transmission rod 19. The outer side of the transmission rod 19 is slidably connected to the inner wall of the transmission groove 18, and the end of the transmission rod 19 away from the linkage rod 17 extends to the outside of the operating box 5 and is fixedly connected with an operating buckle 22. A return spring 20 is sleeved on the outer side of the operating rod 16 and located inside the slide groove 11.

[0036] In this embodiment, the slider 12 moves toward the adjacent side, driving the pawl 14 to leave the inner ratchet 9, thereby releasing the restraint on the hollow pulley 7, so that the winding drum 3 releases the suspension rope 26 under the gravity of the suspension hook 27 itself.

[0037] like Figure 4 and Figure 5 As shown, preferably, the transmission groove 18 is configured as an inclined groove.

[0038] In this embodiment, when the transmission rod 19 applies force to squeeze the transmission slot 18 in a direction perpendicular to the slide slot 11 , the transmission slot 18 obtains a force toward the slide slot 11 .

[0039] like Figure 4 and Figure 7 As shown, preferably, an iron sheet 21 is fixedly connected to the outer side of the operating rod 16, and an electromagnet 23 is fixedly connected to one side of the inner wall of the operating box 5, and the electromagnet 23 cooperates with the iron sheet 21 when energized.

[0040] In this embodiment, the remote control electromagnet 23 is energized, so that the electromagnet 23 obtains magnetic force and attracts the iron sheet 21, thereby driving the operating rod 16 to move. Example

[0041] like Figure 4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the one-way transmission component includes a mounting groove 13, the mounting groove 13 is opened on the side away from the slider 12, the inner walls of the mounting groove 13 are rotatably connected with a pawl 14 through a torsion spring, and the inner side of the cavity 8 is provided with an inner ratchet tooth 9, which is used in conjunction with the ratchet tooth 14.

[0042] In this embodiment, when the turntable 10 rotates toward the tip of the pawl 14, the pawl 14 is restricted by the mounting groove 13 and cannot move. The pawl 14 is stuck in the inner ratchet tooth 9 and drives the hollow pulley 7 to rotate. Conversely, the pawl 14 rotates by itself, and the torsion spring provides reset, and the hollow pulley 7 cannot be driven to rotate through the inner ratchet tooth 9.

[0043] like Figure 1 As shown, preferably, one end of the central axis of the winding disk 3 extends to the interior of the operating box 5 and is fixedly connected to a driven pulley 24, and the driven pulley 24 is connected to the hollow pulley 7 through a transmission belt.

[0044] In this embodiment, the hollow belt pulley 7 is used to drive the driven belt pulley 24 to rotate, thereby driving the winding drum 3 to reel in.

[0045] like Figure 1 and Figure 3 As shown, preferably, a support frame 25 is fixedly installed at the bottom of the drone body 1, a fixing plate 28 is fixedly connected to the bottom of the suspension frame 2, and a groove 29 is provided at the bottom of the fixing plate 28.

[0046] In this embodiment, the support frame 25 can provide support for the drone body 1, and the groove 29 provides a hook 27 for locking in to prevent it from continuing to swing.

[0047] Let’s talk about the working principle of this cargo transport drone with a suspension structure in detail.

[0048] By remotely controlling the drone body 1 to fly to the position where suspension is required, and remotely controlling the electromagnet 23 to be energized, the electromagnet 23 obtains magnetic force and attracts the iron sheet 21, thereby driving the operating rod 16 to move, and driving the linkage rod 17 to move while squeezing the reset spring 20, so as to drive the transmission rods 19 at both ends to move and squeeze the transmission groove 18, so that the transmission groove 18 obtains the force on the closer side, and the two sliders 12 move toward the closer side, and drive the pawl 14 to leave the inner ratchet 9, thereby releasing the restraint on the hollow pulley 7, so that the winding disk 3 releases the suspension rope 26 under the gravity of the suspension hook 27 itself (the suspension hook 27 itself has a certain mass, and the suspension rope 26 can be released before take-off to prepare for suspension), and after the release is completed, the electromagnet 23 is controlled to stop working, so that each structure is reset under the rebound of the reset spring 20, and is aligned with the lifting. The cargo is hooked up by the suspension hook 27, and then the drone body 1 is controlled to take off. During the take-off process, the suspension rope 26 swings, driving the swing cylinder 4 to swing, and then driving the turntable 10 to rotate back and forth. When the turntable 10 rotates toward the tip of the ratchet 14, the ratchet 14 is restricted by the mounting groove 13 and cannot move. The ratchet 14 is stuck in the inner ratchet tooth 9 and drives the hollow pulley 7 to rotate. On the contrary, the ratchet 14 rotates by itself, and the torsion spring provides reset, and the hollow pulley 7 cannot be driven to rotate through the inner ratchet tooth 9. When the hollow pulley 7 rotates, the driven pulley 24 is driven to rotate through the transmission belt, and then the winding disk 3 is driven to rotate to reel up the suspension rope 26, thereby shortening the distance between the cargo and the drone body 1. Until the suspension hook 27 contacts the groove 29 at the bottom of the fixing plate 28, the cargo cannot swing, and the stability of the cargo and the drone is greatly increased.

[0049] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A cargo transport drone with a suspension structure, comprising a drone body (1), characterized in that: The bottom of the drone body (1) is fixedly connected to a suspension frame (2); a winding drum (3) is rotatably connected between the inner walls of the suspension frame (2); a suspension rope (26) is wound around the outer side of the winding drum (3); a swing cylinder (4) is rotatably connected between the inner walls of the suspension frame (2); the bottom of the suspension rope (26) extends to the bottom of the suspension frame (2) through the swing cylinder (4) and is fixedly connected to a suspension hook (27); an operating box (5) is fixedly connected to the outer side of the suspension frame (2); a hollow shaft (6) is rotatably connected to the outer side of the suspension frame (2) and located inside the operating box (5); the hollow shaft (6) is rotatably connected to the inner side of the suspension frame (2); One end of the shaft (6) is fixedly connected to a hollow pulley (7), a cavity (8) is arranged inside the hollow pulley (7), a one-way transmission component is arranged inside the cavity (8), the one-way transmission component is used to unidirectionally transmit the swing generated when the object is suspended and transported to provide power to the winding disk (3) to wind up the suspension rope (26), one end of the central axis of the swing cylinder (4) extends to the inside of the cavity (8) through the hollow shaft (6) and is fixedly connected to a turntable (10), an unlocking component is arranged inside the turntable (10), and the unlocking component is used to release the suspension rope (26) to unload the object.

2. The cargo transport drone with a suspension structure according to claim 1, characterized in that: The unlocking assembly comprises a slide groove (11), the slide groove (11) is arranged on the outer side of the rotating disk (10), the slide groove (11) is arranged as a through groove, a slider (12) is symmetrically slidably connected between the inner walls of the slide groove (11), a connecting groove (15) is arranged on the adjacent sides of the slider (12), a transmission groove (18) which is in communication with the inside of the connecting groove (15) is arranged on both sides of the slider (12), an operating rod (16) is slidably connected to one side of the inner wall of the slide groove (11), and the operating rod One end of the connecting rod (16) is fixedly connected to a linkage rod (17), both ends of the linkage rod (17) respectively extend to the inside of the connecting groove (15) and are fixedly connected to a transmission rod (19), the outer side of the transmission rod (19) is slidably connected to the inner wall of the transmission groove (18), one end of the transmission rod (19) away from the linkage rod (17) extends to the outside of the operating box (5) and is fixedly connected to an operating buckle (22), and a return spring (20) is sleeved on the outside of the operating rod (16) and inside the sliding groove (11).

3. The cargo transport drone with a suspension structure according to claim 2, characterized in that: The transmission groove (18) is configured as an inclined groove.

4. The cargo transport drone with a suspension structure according to claim 2, characterized in that: An iron sheet (21) is fixedly connected to the outside of the operating rod (16), and an electromagnet (23) is fixedly connected to one side of the inner wall of the operating box (5). The electromagnet (23) cooperates with the iron sheet (21) when energized.

5. The cargo transport drone with a suspension structure according to claim 1, characterized in that: The one-way transmission assembly comprises a mounting groove (13), the mounting groove (13) being arranged on a side away from the slider (12), the inner walls of the mounting groove (13) being rotatably connected with a pawl (14) via a torsion spring, the inner side of the cavity (8) being provided with an inner ratchet tooth (9), the inner ratchet tooth (9) being used in conjunction with the ratchet tooth (14).

6. The cargo transport drone with a suspension structure according to claim 1, characterized in that: One end of the central axis of the winding disk (3) extends into the interior of the operating box (5) and is fixedly connected to a driven pulley (24); the driven pulley (24) is connected to the hollow pulley (7) via a transmission belt.

7. The cargo transport drone with a suspension structure according to claim 1, characterized in that: A support frame (25) is fixedly mounted on the bottom of the drone body (1), a fixing plate (28) is fixedly connected to the bottom of the suspension frame (2), and a groove (29) is formed at the bottom of the fixing plate (28).

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