Cable descending type unmanned aerial vehicle distribution and delivery device

Abstract

A cable descending type unmanned aerial vehicle distribution and delivery device comprises an unmanned aerial vehicle body, an outer protection box is installed at the bottom of the unmanned aerial vehicle body, the bottom of the outer protection box is open, an electric cable descending winch is installed at the top of the outer protection box, the electric cable descending winch is provided with two ropes, and a cable descending box is arranged in the outer protection box; four supporting legs are installed on the lower portion of the cable descending box, and the outer protection box and the cable descending box can be placed on the ground through the four supporting legs. In conclusion, the invention belongs to the technical field of unmanned aerial vehicle cargo distribution, and provides a new thought and direction for the development of the logistics unmanned aerial vehicle technology.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicle cargo delivery, and in particular relates to a rope-dropping type unmanned aerial vehicle delivery and distribution device. Background Art

[0002] Logistics drones are an important application area of ​​drone technology, which will greatly facilitate people's lives. The automated drone logistics system uses drones to replace manual delivery of goods, which can realize the automation, unmanned and informationization of rapid delivery, and improve the efficiency and service quality of express delivery. During the delivery process of goods, drones should ensure the safety of goods, and avoid the drones from harming the ground personnel, and also avoid the ground personnel from damaging the drones; in the existing technology, logistics drones generally use landing to deliver goods. The disadvantage of this delivery method is that when the drone lands on the ground, due to the opportunity for people and drones to contact each other, the aircraft is easily damaged intentionally or unintentionally by ground personnel, and when the personnel operate improperly, or non-staff, such as passers-by, children, and the elderly approach the drone, they are easily damaged by the running drone. In addition, the landing of the drone also has certain requirements for the flatness of the landing ground, and it takes a certain amount of time for the drone to land and take off again, which affects the efficiency of drone delivery. Summary of the invention

[0003] The present invention aims to provide a rope-dropping UAV distribution and delivery device to solve the technical problems existing in the existing UAV cargo delivery by landing.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A rope-dropping drone delivery device comprises a drone body, an outer protection box is installed at the bottom of the drone body, the bottom of the outer protection box is open, an electric rope-dropping winch is installed on the top of the outer protection box, the electric rope-dropping winch has two ropes, a rope-dropping box is arranged inside the outer protection box, four legs are installed at the bottom of the rope-dropping box, the outer protection box and the rope-dropping box can be placed on the ground through the four legs, and two ropes of the electric rope-dropping winch are connected to the top of the rope-dropping box; The front wall of the rope-drop box is provided with a cargo entrance, the cargo entrance is covered with a cargo door, the right side of the rope-drop box is open, and a side-opening door is installed on the right side of the rope-drop box; A partition is fixed on the upper part of the rope-dropping box, and the partition divides the interior of the rope-dropping box into a component installation cavity and a cargo storage cavity. A horizontal slide rail is installed in the component installation cavity, and a first slide seat is arranged on the horizontal slide rail, and the first slide seat can slide on the horizontal slide rail; a long slit hole is opened on the partition, and the long slit hole is located directly below the first slide seat, and a triangular rib plate is fixed to the bottom of the first slide seat, and the triangular rib plate is located in the long slit hole and can move on the long slit hole, and a push plate is fixed to the bottom of the triangular rib plate, and the push plate is located in the cargo storage cavity, and the cargo storage cavity is used to place the cargo that needs to be delivered; A door opening, closing and pushing mechanism is arranged in the component installation cavity, and the door opening, closing and pushing mechanism is used to open and close the side-opening door, and drives the first slide seat to slide on the horizontal slide rail while controlling the side-opening door.

[0005] Furthermore, a first pressure sensor is installed at the top of the outer protection box, and a second pressure sensor is installed at the bottom of the rope lowering box; The outer protection box is also equipped with a rope-dropping controller, which is respectively connected to the first pressure sensor, the electric rope-dropping winch and the control module of the drone body; the rope-dropping box is equipped with a cargo-pushing controller, which is respectively connected to the second pressure sensor, the box door opening and closing and pushing mechanism; the rope-dropping controller is connected to the cargo-pushing controller through a two-way communication module; The distribution and delivery process is as follows: first, open the cargo box door, put the cargo into the rappelling box through the cargo entrance, at this time the cargo is located on the second pressure sensor, and the push plate is located on the left side of the cargo, then the cargo box door is re-covered on the cargo entrance, start the drone body, wait for the drone body to fly to the distribution and delivery point, the control module of the drone body transmits the start signal and the height information to the rappelling controller, the rappelling controller controls the electric rappelling winch to start, and the rappelling controller controls the rappelling height of the electric rappelling winch according to the height information, the electric rappelling winch releases two ropes, the rappelling box is rappelled from the bottom of the outer protection box to the distribution and delivery point, and the rappelling controller commands the electric rappelling winch to stop working; The rope-drop controller sends a signal to the cargo-pushing controller through the two-way communication module. The cargo-pushing controller starts the box door opening and closing and pushing mechanism according to the signal. The box door opening and closing and pushing mechanism opens the side door and drives the first slide to slide on the horizontal slide rail at the same time. Driven by the first slide, the push plate pushes the cargo to be delivered in the cargo storage cavity to the right side of the rope-drop box. Driven by the push plate, the cargo is pushed out of the cargo storage cavity to the delivery point. The second pressure sensor detects that the pressure signal returns to zero, and the second pressure sensor transmits the signal to the cargo push-out controller. On the one hand, the cargo push-out controller sends a signal to the rappelling controller through the two-way communication module. The rappelling controller controls the electric rappelling winch to start retracting the rope. The rappelling box rises under the pull of the rope. On the other hand, the cargo push-out controller controls the box door opening and closing and the pushing mechanism to start. The box door opening and closing and the pushing mechanism close the box door and drive the first slide to reset on the horizontal slide rail. When the rappelling box rises to the outer protection box, the top of the rappelling box contacts the first pressure sensor. After the first pressure sensor detects the pressure value, it transmits the signal to the rappelling controller. The rappelling controller controls the electric rappelling winch to stop working, and the rappelling controller transmits the signal to the control module of the drone body. The control module of the drone body controls the drone body to return, thereby completing the cargo distribution and delivery.

[0006] Furthermore, a long axis body is passed through the upper end of the side-opening box door, the long axis body is fixedly connected to the side-opening box door, the long axis body is installed on the top of the right side of the rope-dropping box, and the long axis body can rotate around its axis; The door opening, closing and pushing mechanism includes a stepper motor, a belt transmission mechanism and a variable speed transmission assembly. A driving gear is installed on the main shaft of the stepper motor, and a driven gear is installed on the long shaft body, and the driving gear is meshed with the driven gear; a first shaft body is rotatably installed in the component installation cavity, and a pinion is installed on the first shaft body. An inner arc-shaped rack is fixed to the inner wall of the upper end of the side-opening door, and the center of the inner arc-shaped rack is located on the axis of the long shaft body, and the pinion is meshed with the inner arc-shaped rack; The pinion transmits power to the belt drive mechanism through the speed change transmission assembly, the first slide is fixed on the belt of the belt drive mechanism, and the cargo push-out controller is connected to the stepper motor control.

[0007] Furthermore, the belt drive mechanism includes a transmission belt and four pulleys, and the four pulleys are respectively installed in the component mounting cavity in a rotating manner. The four pulleys are two intermediate pulleys and two end pulleys, and the two end pulleys are respectively located at the two ends of the component mounting cavity. The transmission belt passes around the two intermediate pulleys and the two end pulleys in turn, and the two end pulleys are located at the same height; the pinion is connected to one of the pulleys through a speed change transmission assembly; the first slide is fixed on the transmission belt.

[0008] Furthermore, a second shaft body is rotatably mounted in the component mounting cavity, wherein one of the intermediate pulleys is a power pulley, and the power pulley is arranged on the second shaft body; The pinion is connected to the power pulley through a speed transmission assembly, which includes a first pulley, a second pulley, a third pulley and a fourth pulley. The first pulley is arranged on the first shaft, and a third shaft is also rotatably installed in the component mounting cavity. The second pulley and the third pulley are arranged on the third shaft, the first pulley is connected to the second pulley through a first belt, the fourth pulley is arranged on the second shaft, the third pulley is connected to the fourth pulley through a second belt, and the diameters of the power pulley and the third pulley are both larger than the diameter of the fourth pulley.

[0009] Furthermore, installation slots are respectively provided around the upper part of the outer protection box, and an inspection door panel is fixed to the outer side of the installation slot by a plurality of screws, and a set of anti-sway positioning devices is installed in each installation slot; The upper part of the rope lowering box is provided with latch square openings around each other. When the rope lowering box is located in the outer protection box, the four latch square openings correspond to the four installation slots one by one. The anti-sway positioning device includes a latch block, a screw and a forward and reverse motor. The two ends of the screw are respectively installed in the installation slot through a bearing seat and a bearing. The forward and reverse motor is connected to the end of the screw through a coupling. Two guide rails are arranged in the installation slot. The screw is located between the two guide rails. A second slide seat is arranged on the two guide rails. The second slide seat can slide up and down on the two guide rails. The screw rod is also provided with a threaded sleeve, which cooperates with the screw rod thread and is fixed on the second slide seat, and an inclined slide groove is provided on the second slide seat; A through hole is provided on the side of the installation slot, the through hole corresponds to the square hole of the latch, the latch block is located in the through hole, the side of the latch block is connected with a push-pull plate, a round hole is provided on the push-pull plate, a sliding pin is provided in the inclined slide groove, the sliding pin can slide in the inclined slide groove, one end of the sliding pin is a stud structure, the end of the sliding pin is inserted in the round hole, and a nut is threadedly installed on the end of the sliding pin; The rope lowering controller is connected with the forward and reverse motor control of four groups of anti-sway positioning devices.

[0010] Further, the rope end of the electric rope-dropping winch is connected to the top of the rope-dropping box through a quick-plug connector, the quick-plug connector includes a bullet plug and a docking seat, the bullet plug is connected to the rope end of the electric rope-dropping winch, and the docking seat is fixed to the top of the rope-dropping box; A step hole is provided in the docking seat, and the bullet plug can be inserted into the step hole from top to bottom. The outer wall of the bullet plug is provided with three groups of guide grooves, which are connected end to end. Each group of guide grooves consists of a flaring groove, an upper V-shaped groove, a lower V-shaped groove and a vertical groove. Three column pins are provided on the upper inner wall of the step hole, and the three column pins are respectively provided in one-to-one correspondence with the three groups of guide grooves; When the bullet plug is inserted into the step hole of the docking seat, each pin slides into the flared groove, the upper V-groove and then into the lower V-groove in sequence. When the bullet plug is separated from the docking seat, each pin slides from the lower V-groove into the vertical groove to separate the bullet plug from the docking seat.

[0011] Furthermore, the lower end of the bullet plug is a conical structure; a top pressure seat and a spring are provided at the lower part of the step hole, the top pressure seat can move up and down at the lower part of the step hole, the spring is connected between the top pressure seat and the lower end of the step hole, and a groove is provided on the top pressure seat, which is adapted to the lower end of the bullet plug. When the bullet plug is installed on the docking seat, the lower end of the bullet plug is located in the groove of the top pressure seat, and the spring is in a compressed state at this time.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention delivers goods by rope descent, which avoids direct contact between the drone and people when it lands on the ground, reduces the risk of damage to the drone, and protects the safety of pedestrians, especially children and the elderly; users can easily pick up the goods at the designated location without worrying about the safety of the drone when it lands, thereby improving user satisfaction and experience; (2) The design of the rope-drop box means that the drone does not need to wait for landing during the delivery process, which significantly shortens the delivery time and improves the delivery efficiency. From cargo loading, delivery to collection, the entire process is highly automated, which reduces manual intervention, speeds up the operation process, and reduces labor costs. (3) During the flight of the UAV, the anti-sway positioning device can effectively fix the rope lowering box, reduce the wear of internal components caused by shaking, and extend the service life of the equipment; (4) The quick-connect connector not only facilitates quick connection or separation of the rope and the rappelling box, but also increases the reliability of the connection through the design of the spring and the top pressure seat, preventing accidental separation caused by non-human factors; The present invention combines an electric rope-dropping winch, a sensor, and automated control technology, providing a new idea and direction for the development of logistics UAV technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a structural schematic diagram of a rope-dropping UAV delivery and delivery device of the present invention; Figure 2 A schematic diagram of a state of a rope-dropping UAV delivery and delivery device of the present invention performing rope-dropping and delivering of goods; Figure 3 It is a cross-sectional view of a rope-dropping UAV delivery and delivery device; Figure 4 It is a cross-sectional view of the rope lowering box; Figure 5 for Figure 4 Enlarged view of H in the middle; Figure 6 This is a diagram of the side door of the rappelling box in the open state; Figure 7 for Figure 3 Enlarged view of point F in the middle; Figure 8 It is a structural diagram of a quick-connect connector.

[0014] Explanation of reference numerals: 1. UAV body; 2. External protection box; 3. Electric rope-dropping winch; 4. Rope; 5. Rope-dropping box; 6. Outrigger; 7. Cargo entrance; 8. Cargo door; 9. Side door; 10. Partition; 11. Component installation cavity; 12. Cargo storage cavity; 13. Horizontal slide rail; 14. First slide seat; 16. Triangular rib plate; 17. Push plate; 18. First pressure sensor; 19. Second pressure sensor; 20. Long axis; 21. Stepper motor; 22. Driving gear; 23. Driven gear; 24. Pinion; 25. Inner arc rack; 26. Transmission belt; 27. Intermediate pulley; 28. End pulley; 29. ​​First pulley; 30. Second pulley; 31. Third pulley; 32. The fourth pulley; 33. The first belt; 34. The second belt; 35. The anti-sway positioning device; 36. The installation notch; 37. The inspection door panel; 38. The square opening for the latch; 39. The latch block; 40. The screw; 41. The forward and reverse motor; 42. The bearing seat; 43. The coupling; 44. The guide rail; 45. The second slide seat; 46. The threaded sleeve; 47. The inclined slide groove; 48. The through-mouth; 49. The push-pull plate; 51. The slide pin; 52. The nut; 53. The quick connector; 54. The bullet plug; 55. The docking seat; 56. The stepped hole; 57. The flared groove; 58. The upper V-shaped groove; 59. The lower V-shaped groove; 60. The vertical groove; 61. The pin; 62. The top pressure seat; 63. The spring; 64. The groove; 100. The power pulley. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] The present invention is further described in detail below in conjunction with embodiments.

[0017] Specific embodiment 1 of a rope-dropping drone delivery device provided by the present invention: like Figure 1-Figure 5 As shown, a rope-dropping UAV delivery and distribution device includes a UAV body 1, an outer protection box 2 is installed at the bottom of the UAV body 1, the bottom of the outer protection box 2 is open, an electric rope-dropping winch 3 is installed on the top of the outer protection box 2, and the electric rope-dropping winch 3 has two ropes 4. A rope-dropping box 5 is arranged in the outer protection box 2, and four supporting legs 6 are installed at the lower part of the rope-dropping box 5. The outer protection box 2 and the rope-dropping box 5 can be placed on the ground through the four supporting legs 6, and the two ropes 4 of the electric rope-dropping winch 3 are connected to the top of the rope-dropping box 5.

[0018] The front wall of the rope-drop box 5 is provided with a cargo entrance 7, and a cargo door 8 is buckled on the cargo entrance 7. The right side of the rope-drop box 5 is open, and a side-opening door 9 is installed on the right side of the rope-drop box 5.

[0019] like Figure 4 As shown, a partition 10 is fixed on the upper part of the rope-dropping box 5, and the partition 10 divides the interior of the rope-dropping box 5 into a component installation cavity 11 and a cargo storage cavity 12. A horizontal slide rail 13 is installed in the component installation cavity 11, and a first slide seat 14 is arranged on the horizontal slide rail 13, and the first slide seat 14 can slide on the horizontal slide rail 13; a long slit hole is opened on the partition 10, and the long slit hole is located directly below the first slide seat 14, and a triangular rib plate 16 is fixed to the bottom of the first slide seat 14, and the triangular rib plate 16 is located in the long slit hole and can move on the long slit hole, and a push plate 17 is fixed to the bottom of the triangular rib plate 16, and the push plate 17 is located in the cargo storage cavity 12, and the cargo storage cavity 12 is used to place the goods that need to be delivered.

[0020] A door opening, closing and pushing mechanism is provided in the component installation cavity 11 , and is used to open and close the side-opening door 9 , and drives the first slide 14 to slide on the horizontal slide rail 13 while controlling the side-opening door 9 .

[0021] A first pressure sensor 18 is installed at the top of the outer protection box 2 , and a second pressure sensor 19 is installed at the bottom of the rope lowering box 5 .

[0022] A rappelling controller is also installed on the outer protection box 2, which is respectively connected to the first pressure sensor 18, the electric rappelling winch 3 and the control module of the drone body 1; a cargo push-out controller is installed on the rappelling box 5, which is respectively connected to the second pressure sensor 19, the box door opening and closing and pushing mechanism; the rappelling controller is connected to the cargo push-out controller through a two-way communication module.

[0023] The cargo distribution and delivery process of a rope-dropping drone distribution and delivery device of the present embodiment is as follows: first, open the cargo box door 8, and put the cargo into the rope-dropping box 5 through the cargo entrance 7. At this time, the cargo is located on the second pressure sensor 19, and the push plate 17 is located on the left side of the cargo. Then, the cargo box door 8 is re-covered on the cargo entrance 7, and the drone body 1 is started. When the drone body 1 flies to the distribution and delivery point, the control module of the drone body 1 transmits the start signal and the altitude information to the rope-dropping controller, and the rope-dropping controller controls the electric rope-dropping winch 3 to start, and the rope-dropping controller controls the rope-dropping height of the electric rope-dropping winch 3 according to the altitude information. The electric rope-dropping winch 3 releases two ropes 4, and the rope-dropping box 5 is roped down from the bottom of the outer protection box 2 to the distribution and delivery point. The rope-dropping controller commands the electric rope-dropping winch 3 to stop working. The present embodiment uses two ropes 4 for lifting to prevent the rope-dropping box 5 from rotating during lifting.

[0024] The rope lowering controller sends a signal to the cargo pushing controller through the two-way communication module. The cargo pushing controller starts the box door opening and closing and pushing mechanism according to the signal. The box door opening and closing and pushing mechanism opens the side door 9 and drives the first slide 14 to slide on the horizontal slide rail 13. Driven by the first slide 14, the push plate 17 pushes the cargo to be delivered in the cargo storage cavity 12 to the right side of the rope lowering box 5. Under the push of the push plate 17, the cargo is pushed out of the cargo storage cavity 12 to the delivery delivery point.

[0025] After the cargo is pushed out, the second pressure sensor 19 detects that the pressure signal returns to zero, and the second pressure sensor 19 transmits the signal to the cargo push-out controller. On the one hand, the cargo push-out controller sends a signal to the rappelling controller through the two-way communication module. The rappelling controller controls the electric rappelling winch 3 to start retracting the rope 4. Under the pull of the rope 4, the rappelling box 5 rises. On the other hand, the cargo push-out controller controls the box door opening and closing and the pushing mechanism to start. The box door opening and closing and the pushing mechanism close the box door and drive the first slide 14 to reset on the horizontal slide rail 13. When the rappelling box 5 rises to the outer protection box 2, the top of the rappelling box 5 contacts the first pressure sensor 18. After the first pressure sensor 18 detects the pressure value, it transmits the signal to the rappelling controller. The rappelling controller controls the electric rappelling winch 3 to stop working, and the rappelling controller transmits the signal to the control module of the drone body 1. The control module of the drone body 1 controls the drone body 1 to return, thereby completing the cargo distribution and delivery.

[0026] In order to realize the functions of the above-mentioned door opening and closing and pushing mechanism, that is, to control the opening and closing of the side-opening door 9 and to push the first slide 14 to move, the present embodiment also involves a door opening and closing and pushing mechanism. Specifically, a long axis body 20 is passed through the upper end of the side-opening door 9. The long axis body 20 is fixedly connected to the side-opening door 9. The long axis body 20 is installed on the top right side of the rope-dropping box 5, and the long axis body 20 can rotate around its axis.

[0027] The door opening and closing and pushing mechanism includes a stepping motor 21, a belt transmission mechanism and a variable speed transmission assembly. A driving gear 22 is installed on the main shaft of the stepping motor 21, and a driven gear 23 is installed on the long shaft body 20. The driving gear 22 is meshed with the driven gear 23; a first shaft body is rotatably installed in the component installation cavity 11, and a pinion 24 is installed on the first shaft body. An inner arc-shaped rack 25 is fixed to the inner wall of the upper end of the side-opening door 9. The center of the inner arc-shaped rack 25 is located on the axis of the long shaft body 20, and the pinion 24 is meshed with the inner arc-shaped rack 25 (such as Figure 5 as shown).

[0028] The pinion 24 transmits power to the belt drive mechanism through the speed change transmission assembly. The first slide 14 is fixed on the belt of the belt drive mechanism. The cargo push-out controller is control-connected to the stepping motor 21 .

[0029] The belt drive mechanism includes a transmission belt 26 and four pulleys. The four pulleys are respectively installed in the component mounting cavity 11 in a rotating manner. The four pulleys are two intermediate pulleys 27 and two end pulleys 28. The two end pulleys 28 are respectively located at the two ends of the component mounting cavity 11. The transmission belt 26 passes around the two intermediate pulleys 27 and the two end pulleys 28 in sequence. The two end pulleys 28 are located at the same height; the pinion 24 is connected to one of the pulleys through a speed change transmission assembly, and the first slide 14 is fixed on the transmission belt 26.

[0030] A second shaft is rotatably mounted in the component mounting cavity 11 , wherein one of the intermediate pulleys 27 is a power pulley 100 , and the power pulley 100 is disposed on the second shaft.

[0031] The pinion 24 is connected to the power pulley 100 through a speed transmission assembly, which includes a first pulley 29, a second pulley 30, a third pulley 31 and a fourth pulley 32. The first pulley 29 is arranged on the first shaft, and a third shaft is also rotatably installed in the component mounting cavity 11. The second pulley 30 and the third pulley 31 are arranged on the third shaft, and the first pulley 29 is connected to the second pulley 30 through a first belt 33. The fourth pulley 32 is arranged on the second shaft, and the third pulley 31 is connected to the fourth pulley 32 through a second belt 34. The diameter of the power pulley 100 and the diameter of the third pulley 31 are both larger than the diameter of the fourth pulley 32.

[0032] The main function of the speed change transmission assembly in the present embodiment is as follows: since the push plate 17 is arranged on the first slide 14, the first slide 14 moves following the transmission belt 26, and therefore the moving distance of the push plate 17 depends on the transmission distance of the transmission belt 26, and the transmission distance of the transmission belt 26 depends on the rotation speed and radius of the power pulley 100. The power source of the power pulley 100 comes from the pinion 24, and the rotation of the pinion 24 depends on the opening and closing angle of the side-opening door 9. When the opening and closing angle of the side-opening door 9 is limited, the rotation speed of the power pulley 100 is increased by the speed change transmission assembly to achieve the moving distance of the push plate 17, so that the goods can be pushed out of the cargo storage chamber 12.

[0033] The working process of the door opening and closing and pushing mechanism is as follows: Figure 6 As shown, when the rope-drop box 5 descends to the delivery point, the cargo-pushing controller starts the stepper motor 21 according to the signal, and the stepper motor 21 drives the long axis body 20 to rotate through the driving gear 22 and the driven gear 23. The side-opening box door 9 is installed on the long axis body 20. Driven by the long axis body 20, the side-opening box door 9 opens. During the opening process of the side-opening box door 9, the inner arc-shaped rack 25 rotates around the axis of the long axis body 20, so that the inner arc-shaped rack 25 drives the pinion 24 to rotate. The pinion 24 and the first pulley 29 are both arranged on the first axis body. The first pulley 29 rotates with the first axis body. The first pulley 29 passes through the first A belt 33 pulls the second pulley 30 to rotate, and the second pulley 30 is coaxially arranged with the third pulley 31. The third pulley 31 drives the fourth pulley 32 to rotate through the second belt 34. Since the diameter of the third pulley 31 is larger than the diameter of the fourth pulley 32, the initial speed increase is completed, so that the fourth pulley 32 rotates faster. The fourth pulley 32 is coaxially arranged with the power pulley 100, and the radius of the fourth pulley 32 is smaller than the radius of the power pulley 100, so the secondary speed increase is completed. The power pulley 100 pulls the transmission belt 26 to transmit, and finally drives the first slide 14 to move, and the push plate 17 can push the goods out.

[0034] like Figure 3 and Figure 7 As shown, a specific embodiment 2 of a rope-dropping UAV delivery and distribution device provided by the present invention is different from the specific embodiment 1 in that: when the UAV body 1 is flying, the rope-dropping box 5 is located in the outer protection box 2. On the one hand, the rope-dropping box 5 is prone to shaking during the flight of the UAV, and collides with the outer protection box 2 during the shaking process. Long-term collision causes wear of the rope-dropping box 5 and the outer protection box 2. On the other hand, the rope 4 always pulls the rope-dropping box 5, and the rope 4 is always in a pulling state, which will affect its service life. An anti-sway positioning device 35 is designed for this embodiment. Specifically, installation slots 36 are respectively opened around the upper part of the outer protection box 2, and an inspection door panel 37 is fixed to the outer side of the installation slot 36 by a number of screws. A group of anti-sway positioning devices 35 is installed in each installation slot 36.

[0035] The upper part of the rope lowering box 5 is provided with latch square openings 38 around its periphery. When the rope lowering box 5 is located in the outer protection box 2 , the four latch square openings 38 correspond to the four installation slots 36 one by one.

[0036] The anti-sway positioning device 35 includes a latch block 39, a screw 40 and a forward and reverse motor 41. The two ends of the screw 40 are respectively installed in the mounting slot 36 through a bearing seat 42 and a bearing. The forward and reverse motor 41 is connected to the end of the screw 40 through a coupling 43. Two guide rails 44 are arranged in the mounting slot 36. The screw 40 is located between the two guide rails 44. A second slide seat 45 is arranged on the two guide rails 44. The second slide seat 45 can slide up and down along the two guide rails 44.

[0037] The screw rod 40 is also provided with a threaded sleeve 46 , which is threadably matched with the screw rod 40 . The threaded sleeve 46 is fixed on the second slide seat 45 , and an inclined slide groove 47 is provided on the second slide seat 45 .

[0038] A through hole 48 is provided on the side of the installation groove 36, and the through hole 48 corresponds to the square hole 38 of the latch. The latch block 39 is located in the through hole 48. A push-pull plate 49 is connected to the side of the latch block 39. A round hole is opened on the push-pull plate 49. A sliding pin 51 is provided in the inclined slide groove 47. The sliding pin 51 can slide in the inclined slide groove 47. One end of the sliding pin 51 is a stud structure. The end of the sliding pin 51 is penetrated in the round hole, and a nut 52 is threadedly installed on the end of the sliding pin 51.

[0039] The rope lowering controller is connected to the forward and reverse motors 41 of the four anti-sway positioning devices 35. When the rope lowering box 5 rises into the outer protection box 2, the top of the rope lowering box 5 contacts the first pressure sensor 18, and the rope lowering controller controls the electric rope lowering winch 3 to stop working. At the same time, the rope lowering controller controls the four anti-sway positioning devices 35 to work synchronously, and the forward and reverse motors 41 are started. The forward and reverse motors 41 drive the screw 40 to rotate through the coupling. The threaded sleeve 46 moves under the drive of the screw 40, and the threaded sleeve 46 drives the second slide 45 on the two guide rails 44. Sliding upward, since the sliding pin 51 is set in the inclined sliding groove 47, and the latch block 39 can only move horizontally in the through opening 48, the push-pull plate 49 is connected to the sliding pin 51 and the latch block 39, so the sliding pin 51 can only move in the horizontal direction. During the movement of the sliding pin 51, the push-pull plate 49 pushes the latch block 39, so that the latch block 39 is inserted into the latch square opening 38 of the outer wall of the rope-dropping box 5; the insertion of the latch block 39 can, on the one hand, bear the weight of the rope-dropping box 5, and on the other hand, can limit the shaking of the rope-dropping box 5 to avoid its collision with the inner wall of the outer protection box 2.

[0040] like Figure 8 As shown, a specific embodiment 3 of a rope-dropping drone delivery device provided by the present invention is as follows: The difference from specific embodiment 1 is that: this embodiment designs a quick-plug connector for quickly connecting or disconnecting the rope 4 and the rope-dropping box 5. The end of the rope 4 of the electric rope-dropping winch 3 is connected to the top of the rope-dropping box 5 through a quick-plug connector 53. The quick-plug connector 53 includes a bullet plug 54 and a docking seat 55. The bullet plug 54 is connected to the end of the rope 4 of the electric rope-dropping winch 3, and the docking seat 55 is fixed to the top of the rope-dropping box 5.

[0041] A step hole 56 is provided in the docking seat 55, and the bullet plug 54 can be inserted into the step hole 56 from top to bottom. The outer wall of the bullet plug 54 is provided with three groups of guide grooves, and the three groups of guide grooves are connected end to end. Each group of guide grooves consists of a flared groove 57, an upper V-shaped groove 58, a lower V-shaped groove 59 and a vertical groove 60. Three column pins 61 are provided on the upper inner wall of the step hole 56, and the three column pins 61 are respectively provided in a one-to-one correspondence with the three groups of guide grooves.

[0042] When the bullet plug 54 is inserted into the step hole 56 of the docking seat 55, the three pins 61 slide into the three sets of guide grooves synchronously respectively. The sliding process of each pin 61 is as follows: the pin 61 first slides into the upper V-shaped groove 58 through the flared groove 57, and then slides into the lower V-shaped groove 59 through the upper V-shaped groove 58. When the rope 4 lifts the rope lowering box 5, the bullet plug 54 is pulled upward by the rope 4, and the docking seat 55 is subjected to the downward gravity of the rope lowering box 5. The pins 61 are located in the lower V-shaped groove 59, which can limit the separation of the bullet plug 54 and the docking seat 55. It should be noted that when inserting the bullet plug 54, due to the special structure of the upper V-shaped groove 58 and the lower V-shaped groove 59, the bullet plug 54 needs to be rotated before it can be connected with the docking seat 55; when the bullet plug 54 is separated from the docking seat 55, each pin 61 slides from the lower V-shaped groove 59 into the vertical groove 60, so that the bullet plug 54 can be separated from the docking seat 55.

[0043] Preferably, in order to avoid non-human accidental factors, the bullet plug 54 is separated from the docking seat 55, and the quick-connect connector 53 can be further upgraded. Specifically, the lower end of the bullet plug 54 is a conical structure; the lower part of the step hole 56 is provided with a top pressure seat 62 and a spring 63, the top pressure seat 62 can move up and down in the lower part of the step hole 56, the spring 63 is connected between the top pressure seat 62 and the lower end of the step hole 56, the top pressure seat 62 is provided with a groove 64, the groove 64 is adapted to the lower end of the bullet plug 54, when the bullet plug 54 is installed on the docking seat 55, the lower end of the bullet plug 54 is located in the groove 64 of the top pressure seat 62, and at this time the spring 63 is in a compressed state.

[0044] Under the elastic force of the compression spring 63 , the docking seat 55 pushes the bullet plug 54 upward, so that pressure is generated between the pin 61 and the lower V-shaped groove 59 , thereby preventing the bullet plug 54 from accidentally coming out of the docking seat 55 due to non-human factors.

[0045] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rope-dropping drone delivery device, characterized in that: The drone comprises a drone body, an outer protection box is installed at the bottom of the drone body, the bottom of the outer protection box is open, an electric rope-dropping winch is installed on the top of the outer protection box, the electric rope-dropping winch has two ropes, a rope-dropping box is arranged inside the outer protection box, four legs are installed at the bottom of the rope-dropping box, the outer protection box and the rope-dropping box can be placed on the ground through the four legs, and two ropes of the electric rope-dropping winch are connected to the top of the rope-dropping box; The front wall of the rope-drop box is provided with a cargo entrance, the cargo entrance is covered with a cargo door, the right side of the rope-drop box is open, and a side-opening door is installed on the right side of the rope-drop box; A partition is fixed on the upper part of the rope-dropping box, and the partition divides the interior of the rope-dropping box into a component installation cavity and a cargo storage cavity. A horizontal slide rail is installed in the component installation cavity, and a first slide seat is arranged on the horizontal slide rail, and the first slide seat can slide on the horizontal slide rail; a long slit hole is opened on the partition, and the long slit hole is located directly below the first slide seat, and a triangular rib plate is fixed to the bottom of the first slide seat, and the triangular rib plate is located in the long slit hole and can move on the long slit hole, and a push plate is fixed to the bottom of the triangular rib plate, and the push plate is located in the cargo storage cavity, and the cargo storage cavity is used to place the cargo that needs to be delivered; A door opening, closing and pushing mechanism is arranged in the component installation cavity, and the door opening, closing and pushing mechanism is used to open and close the side-opening door, and drives the first slide seat to slide on the horizontal slide rail while controlling the side-opening door.

2. The rope-dropping drone delivery device according to claim 1, characterized in that: A first pressure sensor is installed at the top of the outer protection box, and a second pressure sensor is installed at the bottom of the rope lowering box; The outer protection box is also equipped with a rope-dropping controller, which is respectively connected to the first pressure sensor, the electric rope-dropping winch and the control module of the drone body; the rope-dropping box is equipped with a cargo-pushing controller, which is respectively connected to the second pressure sensor, the box door opening and closing and pushing mechanism; the rope-dropping controller is connected to the cargo-pushing controller through a two-way communication module; The distribution and delivery process is as follows: first, open the cargo box door, put the cargo into the rappelling box through the cargo entrance, at this time the cargo is located on the second pressure sensor, and the push plate is located on the left side of the cargo, then the cargo box door is re-covered on the cargo entrance, start the drone body, wait for the drone body to fly to the distribution and delivery point, the control module of the drone body transmits the start signal and the height information to the rappelling controller, the rappelling controller controls the electric rappelling winch to start, and the rappelling controller controls the rappelling height of the electric rappelling winch according to the height information, the electric rappelling winch releases two ropes, the rappelling box is rappelled from the bottom of the outer protection box to the distribution and delivery point, and the rappelling controller commands the electric rappelling winch to stop working; The rope-drop controller sends a signal to the cargo-pushing controller through the two-way communication module. The cargo-pushing controller starts the box door opening and closing and pushing mechanism according to the signal. The box door opening and closing and pushing mechanism opens the side door and drives the first slide to slide on the horizontal slide rail at the same time. Driven by the first slide, the push plate pushes the cargo to be delivered in the cargo storage cavity to the right side of the rope-drop box. Driven by the push plate, the cargo is pushed out of the cargo storage cavity to the delivery point. The second pressure sensor detects that the pressure signal returns to zero, and the second pressure sensor transmits the signal to the cargo push-out controller. On the one hand, the cargo push-out controller sends a signal to the rappelling controller through the two-way communication module. The rappelling controller controls the electric rappelling winch to start retracting the rope. The rappelling box rises under the pull of the rope. On the other hand, the cargo push-out controller controls the box door opening and closing and the pushing mechanism to start. The box door opening and closing and the pushing mechanism close the box door and drive the first slide to reset on the horizontal slide rail. When the rappelling box rises to the outer protection box, the top of the rappelling box contacts the first pressure sensor. After the first pressure sensor detects the pressure value, it transmits the signal to the rappelling controller. The rappelling controller controls the electric rappelling winch to stop working, and the rappelling controller transmits the signal to the control module of the drone body. The control module of the drone body controls the drone body to return, thereby completing the cargo distribution and delivery.

3. The rope-dropping drone delivery device according to claim 2 is characterized in that: A long axis body is passed through the upper end of the side-opening box door, the long axis body is fixedly connected to the side-opening box door, the long axis body is installed on the top of the right side of the rope-dropping box, and the long axis body can rotate around its axis; The door opening, closing and pushing mechanism includes a stepper motor, a belt transmission mechanism and a variable speed transmission assembly. A driving gear is installed on the main shaft of the stepper motor, and a driven gear is installed on the long shaft body, and the driving gear is meshed with the driven gear; a first shaft body is rotatably installed in the component installation cavity, and a pinion is installed on the first shaft body. An inner arc-shaped rack is fixed to the inner wall of the upper end of the side-opening door, and the center of the inner arc-shaped rack is located on the axis of the long shaft body, and the pinion is meshed with the inner arc-shaped rack; The pinion transmits power to the belt drive mechanism through the speed change transmission assembly, the first slide is fixed on the belt of the belt drive mechanism, and the cargo push-out controller is connected to the stepper motor control.

4. The rope-dropping drone delivery device according to claim 3 is characterized in that: The belt drive mechanism includes a transmission belt and four pulleys. The four pulleys are respectively installed in the component installation cavity by rotation. The four pulleys are two intermediate pulleys and two end pulleys. The two end pulleys are respectively located at the two ends of the component installation cavity. The transmission belt passes around the two intermediate pulleys and the two end pulleys in sequence. The two end pulleys are located at the same height; the pinion is connected to one of the pulleys through a speed change transmission assembly; the first slide is fixed on the transmission belt.

5. The rope-dropping drone delivery device according to claim 4 is characterized in that: A second shaft body is rotatably mounted in the component mounting cavity, wherein one of the intermediate pulleys is a power pulley, and the power pulley is arranged on the second shaft body; The pinion is connected to the power pulley through a speed transmission assembly, which includes a first pulley, a second pulley, a third pulley and a fourth pulley. The first pulley is arranged on the first shaft, and a third shaft is also rotatably installed in the component mounting cavity. The second pulley and the third pulley are arranged on the third shaft, the first pulley is connected to the second pulley through a first belt, the fourth pulley is arranged on the second shaft, the third pulley is connected to the fourth pulley through a second belt, and the diameters of the power pulley and the third pulley are both larger than the diameter of the fourth pulley.

6. The rope-dropping drone delivery device according to claim 5, characterized in that: The upper part of the outer protection box is provided with installation slots around each other, and the outside of the installation slots is fixed with an inspection door panel by a number of screws, and a set of anti-sway positioning devices is installed in each installation slot; The upper part of the rope lowering box is provided with latch square openings around each other. When the rope lowering box is located in the outer protection box, the four latch square openings correspond to the four installation slots one by one. The anti-sway positioning device includes a latch block, a screw and a forward and reverse motor. The two ends of the screw are respectively installed in the installation slot through a bearing seat and a bearing. The forward and reverse motor is connected to the end of the screw through a coupling. Two guide rails are arranged in the installation slot. The screw is located between the two guide rails. A second slide seat is arranged on the two guide rails. The second slide seat can slide up and down on the two guide rails. The screw rod is also provided with a threaded sleeve, which cooperates with the screw rod thread and is fixed on the second slide seat, and an inclined slide groove is provided on the second slide seat; A through hole is provided on the side of the installation slot, the through hole corresponds to the square hole of the latch, the latch block is located in the through hole, the side of the latch block is connected with a push-pull plate, a round hole is provided on the push-pull plate, a sliding pin is provided in the inclined slide groove, the sliding pin can slide in the inclined slide groove, one end of the sliding pin is a stud structure, the end of the sliding pin is penetrated in the round hole, and a nut is threadedly installed on the end of the sliding pin; The rope lowering controller is connected with the forward and reverse motor control of four groups of anti-sway positioning devices.

7. The rope-dropping drone delivery device according to claim 1, characterized in that: The rope end of the electric rope-dropping winch is connected to the top of the rope-dropping box through a quick-plug connector, the quick-plug connector includes a bullet plug and a docking seat, the bullet plug is connected to the rope end of the electric rope-dropping winch, and the docking seat is fixed to the top of the rope-dropping box; A step hole is provided in the docking seat, and the bullet plug can be inserted into the step hole from top to bottom. The outer wall of the bullet plug is provided with three groups of guide grooves, which are connected end to end. Each group of guide grooves consists of a flaring groove, an upper V-shaped groove, a lower V-shaped groove and a vertical groove. Three column pins are provided on the upper inner wall of the step hole, and the three column pins are respectively provided in one-to-one correspondence with the three groups of guide grooves; When the bullet plug is inserted into the step hole of the docking seat, each pin slides into the flared groove, the upper V-groove and then into the lower V-groove in sequence. When the bullet plug is separated from the docking seat, each pin slides from the lower V-groove into the vertical groove to separate the bullet plug from the docking seat.

8. The rope-dropping drone delivery device according to claim 7, characterized in that: The lower end of the bullet plug is a conical structure; a top pressure seat and a spring are provided at the lower part of the step hole, the top pressure seat can move up and down at the lower part of the step hole, the spring is connected between the top pressure seat and the lower end of the step hole, and a groove is provided on the top pressure seat, which is adapted to the lower end of the bullet plug. When the bullet plug is installed on the docking seat, the lower end of the bullet plug is located in the groove of the top pressure seat, and the spring is in a compressed state at this time.

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