A multi-rotor drone for logistics transportation and a method of using the same

Abstract

The present invention discloses a multi-rotor UAV for logistics transportation and a method for using the same, and belongs to the field of logistics transportation technology. A multi-rotor UAV for logistics transportation includes a UAV body, and also includes: a support plate, which is arranged on the top of the UAV body and is used to support logistics goods, and a connecting rod is arranged between the support plate and the UAV body; an upper clamping mechanism, which is movably arranged on the support plate and is used to clamp and limit the upper side of the logistics goods; and a side clamping mechanism, which is arranged on both sides of the support plate and is used to clamp and limit the side of the logistics goods; compared with a logistics box with a fixed volume, the present invention can transport logistics goods of a larger volume, and can quickly achieve the fitting clamping of the goods, is simple to operate, avoids the loosening of the logistics goods during transportation, and ensures the stability of the logistics operation.

Description

Technical Field

[0001] The present invention relates to the field of logistics and transportation technology, and in particular to a multi-rotor UAV for logistics and transportation and a method of using the same. Background Art

[0002] Unmanned aerial vehicle, abbreviated as "UAV" in English, is an unmanned aircraft controlled by radio remote control equipment and self-contained program control device, or operated completely or intermittently autonomously by an on-board computer.

[0003] At present, multi-rotor unmanned aerial vehicles have been widely used in agriculture, forestry and logistics industries. The traditional drone transportation logistics method is that the multi-rotor drone flies to the destination with the goods. The unmanned aerial vehicle includes a fuselage, a tripod supporting the fuselage, a battery installed in the fuselage, and a loading box installed at the bottom of the fuselage (for example, a logistics box or a medicine box). However, the existing drones used for logistics transportation are not convenient for fixing the goods when in use, and the volume of the logistics box is fixed, and objects larger than the volume of the logistics box cannot be transported. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a multi-rotor drone for logistics transportation and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A multi-rotor drone for logistics transportation, comprising a drone body and:

[0007] A support plate, which is arranged on the top of the drone body and is used to support logistics goods, and a connecting rod is arranged between the support plate and the drone body;

[0008] An upper clamping mechanism, which is movably arranged on the support plate and is used to clamp and limit the upper side of the logistics goods;

[0009] A side clamping mechanism, which is arranged on both sides of the support plate and is used to clamp and limit the sides of the logistics goods. The side clamping mechanism includes a fixed plate fixedly connected to the support plate and a rotating plate rotatably connected to the fixed plate through a first pin shaft, and the first pin shaft is sleeved with a first torsion spring for driving the rotating plate to reset and rotate;

[0010] Wherein, a driving motor for driving the upper clamping mechanism and the side clamping mechanism is arranged at the bottom of the supporting plate.

[0011] Preferably, the upper clamping mechanism includes a first rotating rod rotatably connected to the bottom of the support plate, the first rotating rod is provided with a first reel, a strap is wound around the first reel, a support assembly for supporting the strap is provided on the support plate, and the output shaft of the drive motor is fixedly connected to the first rotating rod.

[0012] Preferably, the support assembly includes an elastic telescopic rod rotatably arranged at both ends of the support plate, a return spring is arranged between the elastic telescopic rod and the support plate, a connecting plate is arranged at the end of each of the elastic telescopic rods, the end of the strap away from the first reel passes through one of the connecting plates and is connected to the other connecting plate, each of the connecting plates is connected to an elastic telescopic plate, and a limit frame is arranged at the end of the elastic telescopic plate which is slidably connected to the strap.

[0013] Preferably, the side clamping mechanism includes a support plate fixed on the bottom of the support plate, the support plate is rotatably connected to a second rotating rod, the second rotating rod is provided with a second reel, the second reel is wound with a first pull rope, the end of the first pull rope away from the second reel is connected to the rotating plate, the second rotating rod is provided with a driven bevel gear, and the first rotating rod is provided with an active bevel gear meshing with the driven bevel gear.

[0014] Preferably, a third reel is further provided on the second rotating rod, a second pull rope is wound around and connected to the third reel, and one end of the second pull rope away from the third reel is connected to a side plate fixedly connected to the elastic telescopic rod.

[0015] Preferably, the rotating plate includes a plurality of clamping plates, a second pin is provided between two adjacent clamping plates, a second torsion spring is provided between the second pin and the clamping plates, and the end of the first pull rope away from the second reel is fixedly connected to the clamping plate of the rotating plate farthest from the fixed plate.

[0016] Preferably, a ratchet is fixed on the second pin shaft, and connecting seats are provided on the clamping plate and the fixed plate. A limiting rod that is rotatably connected to the connecting seat through a third pin shaft and is movably opposed to the ratchet is provided on the third pin shaft, and a third torsion spring for driving the limiting rod to reset and rotate is sleeved on the third pin shaft.

[0017] Preferably, the splint and the fixed plate are both provided with a first sliding groove, a first slider is slidably connected in the first sliding groove, a first elastic element is arranged between the first slider and the inner wall of the first sliding groove, the first slider is connected to a limiting seat that movably resists the connecting seat, the splint and the fixed plate are both provided with a second sliding groove, a second slider fixedly connected to the connecting seat is slidably connected in the second sliding groove, and a second elastic element is arranged between the second slider and the inner wall of the second sliding groove.

[0018] Preferably, the first pull rope is fixedly connected to a plurality of limit seats, and each of the clamping plates is provided with a guide seat slidably connected to the first pull rope.

[0019] The present invention also discloses a method for using a multi-rotor drone for logistics transportation, comprising the following steps:

[0020] S1: When using the drone body to transport logistics goods, the logistics goods are placed on the support plate, and the logistics goods can be placed on the support plane formed by the elastic telescopic rod and the rotating plate at the same time;

[0021] S2: Then the driving motor is controlled to operate, and the output shaft of the driving motor drives the first rotating rod to rotate. When the first rotating rod rotates, the active bevel gear meshes with the driven bevel gear on the second rotating rod for transmission, and the second rotating rod drives the third reel to rotate and releases the second pull rope. The elastic telescopic rod resets and rotates under the action of the reset coil spring, so that the elastic telescopic rod drives the strap to move to the upper side of the logistics goods through the elastic telescopic plate. As the first rotating rod drives the first reel to continuously reel up the strap, the strap is bound to the upper side of the logistics goods, and during this period, the elastic telescopic rod and the elastic telescopic plate are contracted by force until the strap contacts the logistics goods;

[0022] S3: As the second rotating rod continues to rotate, the second reel on the second rotating rod releases the first pull rope, and the rotating plate flips relative to the fixed plate under the action of the first torsion spring, and each clamping plate on the rotating plate flips under the action of the second torsion spring, so that the clamping plate on the rotating plate fits the side of the logistics cargo, and the limit rod limits the rotation of the ratchet wheel to keep the clamping and abutting state of the clamping plate against the side of the logistics cargo;

[0023] S4: When the logistics goods on the support plate need to be unloaded, the driving motor drives the first rotating rod to flip, the first reel releases the strap, the strap is no longer tied to the upper side of the logistics goods, the second rotating rod drives the second reel to reel in the first pull rope, and the third reel to reel in the second pull rope;

[0024] When the second pull rope is rolled up, a pulling force is applied to the side plate on the elastic telescopic rod, so that the elastic telescopic rod drives the binding belt to move to the side of the support plate through the elastic telescopic plate;

[0025] When the first pull rope is wound up, the force is straightened by the guide seat, so that the first pull rope applies a downward pulling force to the limit seat, and the limit seat moves down and no longer abuts the connecting seat. As the first pull rope is wound up, it continues to apply pulling force to the clamping plate, so that the ratchet teeth push the inclined surface of the limit rod, and the limit rod drives the connecting seat to move horizontally under the force, and the limit rod no longer limits the ratchet wheel. As the first pull rope is continuously pulled, the clamping plates fit together and no longer separate, so that the rotating plate is pulled into a straight line again, and finally the rotating plate and the fixed plate are placed horizontally, thereby releasing the clamping of the rotating plate on the side of the logistics goods, and then removing the logistics goods from the support plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The multi-rotor drone for logistics transportation and the method of using the multi-rotor drone can place logistics goods on a support plate, and the logistics goods can be placed on a support plane formed by an elastic telescopic rod and a rotating plate at the same time. Compared with a logistics box with a fixed volume, it can transport logistics goods of a larger volume, and the upper clamping mechanism drives the side clamping mechanism to move when working, so that the goods can be quickly clamped. The operation is simple, and the looseness of the logistics goods during transportation is avoided, thereby ensuring the stability of the logistics operation.

[0028] 2. The multi-rotor UAV for logistics transportation and the use method thereof, by making the rotating plate consist of a plurality of elastically rotating clamping plates, the second drum on the second rotating rod releases the first pull rope, the rotating plate flips relative to the fixed plate under the action of the first torsion spring, and each clamping plate on the rotating plate flips under the action of the second torsion spring, so that the clamping plate on the rotating plate fits the side of the logistics goods, the clamping contact surface between the rotating plate and the logistics goods is increased, the limit rod limits the rotation of the ratchet wheel, the clamping contact state of the clamping plate on the side of the logistics goods is maintained, and the stability of logistics goods transportation is improved;

[0029] 3. The multi-rotor UAV for logistics transportation and the use method thereof, when the first pull rope is wound up, the force is applied to the guide seat to straighten it, so that the first pull rope applies a downward pulling force to the limit seat, and the limit seat moves down and no longer abuts against the connecting seat, and as the first pull rope is wound up, it continues to apply a pulling force to the clamping plate, so that the ratchet teeth of the ratchet wheel push the inclined surface of the limit rod, and the limit rod is forced to drive the connecting seat to move horizontally, and the limit rod no longer limits the ratchet wheel, and as the first pull rope is continuously pulled, the clamping plates fit together and no longer separate, so that the rotating plate is pulled into a straight line again, and finally the rotating plate and the fixed plate are placed horizontally, so that the clamping of the rotating plate on the side of the logistics goods is released, and the logistics goods can be quickly taken and placed, which is convenient for improving the logistics transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 For the present invention Figure 1 A partial enlarged structural diagram of the middle part;

[0032] Figure 3 It is a schematic diagram of the structure of the outer part of the support plate of the present invention;

[0033] Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure of the middle B part;

[0034] Figure 5 The cross-sectional structure of the support plate of the present invention is shown in FIG. Figure 1 ;

[0035] Figure 6 For the present invention Figure 5 A schematic diagram of the partially enlarged structure of the middle C part;

[0036] Figure 7 The cross-sectional structure of the support plate of the present invention is shown in FIG. Figure 2 ;

[0037] Figure 8 For the present invention Figure 7 The schematic diagram of the partial enlarged structure of the middle D part;

[0038] Fig. 9 It is a schematic diagram of the structure of the fixed plate and the rotating plate of the present invention when they are not working;

[0039] Fig.10 It is a structural schematic diagram of the fixed plate and the rotating plate of the present invention when they are working;

[0040] Fig.11 It is a schematic structural diagram of the upper clamping mechanism of the present invention when it is working.

[0041] In the figure: 1, drone body; 101, connecting rod; 2, support plate; 3, fixing plate; 301, first pin shaft; 4, rotating plate; 401, clamping plate; 402, second pin shaft; 5, driving motor; 6, first rotating rod; 601, first reel; 602, strap; 603, active bevel gear; 7, elastic telescopic rod; 701, connecting plate; 702, elastic telescopic plate; 703, limit frame; 8, support plate; 801, second rotating rod Rod; 8011, driven bevel gear; 802, second drum; 8021, first pull rope; 803, third drum; 8031, second pull rope; 9, side plate; 10, ratchet; 11, connecting seat; 111, limiting rod; 12, first slide groove; 121, first slider; 122, first elastic element; 123, limiting seat; 13, second slide groove; 131, second slider; 132, second elastic element; 14, guide seat. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] Example 1: Reference Figure 1 , Figure 3 , Figure 5 , Figure 7 and Fig.11 , a multi-rotor drone for logistics transportation, comprising a drone body 1, and also comprising:

[0045] A support plate 2 is provided on the top of the drone body 1 and is used to support logistics goods. A connecting rod 101 is provided between the support plate 2 and the drone body 1;

[0046] The upper clamping mechanism is movably arranged on the support plate 2 and is used to clamp and limit the upper side of the logistics goods;

[0047] The side clamping mechanism is arranged on both sides of the support plate 2 and is used to clamp and limit the sides of the logistics goods. The side clamping mechanism includes a fixed plate 3 fixedly connected to the support plate 2 and a rotating plate 4 rotatably connected to the fixed plate 3 through a first pin shaft 301. The first pin shaft 301 is sleeved with a first torsion spring for driving the rotating plate 4 to reset and rotate;

[0048] A driving motor 5 for driving the upper clamping mechanism and the side clamping mechanism is disposed at the bottom of the supporting plate 2 .

[0049] Specifically, when the drone body 1 is used to transport logistics goods, the logistics goods are placed on the support plate 2. The logistics goods can also be placed on the support plane formed by the upper clamping mechanism and the side clamping mechanism at the same time. Compared with a logistics box with a fixed volume, it can transport logistics goods of a larger volume, and the upper clamping mechanism drives the side clamping mechanism to move when working, so as to quickly achieve the clamping of the goods. The operation is simple, which prevents the logistics goods from loosening during transportation, ensures the stability of logistics operation, and improves the efficiency of logistics transportation.

[0050] Example 2: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Fig.11 , a multi-rotor drone for logistics transportation, based on Example 1, further, the upper clamping mechanism includes a first rotating rod 6 rotatably connected to the bottom of the support plate 2, the first rotating rod 6 is provided with a first reel 601, the first reel 601 is wound and connected with a strap 602, the support plate 2 is provided with a support assembly for supporting the strap 602, and the output shaft of the drive motor 5 is fixedly connected to the first rotating rod 6.

[0051] Furthermore, the support assembly includes an elastic telescopic rod 7 rotatably arranged at both ends of the support plate 2, a reset spring is arranged between the elastic telescopic rod 7 and the support plate 2, a connecting plate 701 is arranged at the end of each elastic telescopic rod 7, the end of the strap 602 away from the first reel 601 passes through one of the connecting plates 701 and is connected to the other connecting plate 701, each connecting plate 701 is connected to an elastic telescopic plate 702, and a limit frame 703 slidably connected to the strap 602 is arranged at the end of the elastic telescopic plate 702.

[0052] Furthermore, the side clamping mechanism includes a support plate 8 fixed to the bottom of the support plate 2, the support plate 8 is rotatably connected to a second rotating rod 801, the second rotating rod 801 is provided with a second reel 802, the second reel 802 is wound with a first pull rope 8021, the end of the first pull rope 8021 away from the second reel 802 is connected to the rotating plate 4, the second rotating rod 801 is provided with a driven bevel gear 8011, and the first rotating rod 6 is provided with an active bevel gear 603 meshing with the driven bevel gear 8011.

[0053] Furthermore, a third reel 803 is provided on the second rotating rod 801 , and a second pull rope 8031 ​​is wound around the third reel 803 . One end of the second pull rope 8031 ​​away from the third reel 803 is connected to a side plate 9 fixedly connected to the elastic telescopic rod 7 .

[0054] Specifically, when the drone body 1 is used to transport logistics goods, the logistics goods are placed on the support plate 2, and the logistics goods can be placed on the support plane formed by the elastic telescopic rod 7 and the rotating plate 4 at the same time, and then the driving motor 5 is controlled to operate, and the output shaft of the driving motor 5 drives the first rotating rod 6 to rotate. When the first rotating rod 6 rotates, the active bevel gear 603 engages with the driven bevel gear 8011 on the second rotating rod 801 for transmission, and the second rotating rod 801 drives the third reel 803 to rotate and releases the second pull rope 8031, and the elastic telescopic rod 7 is reset and rotated under the action of the reset coil spring, so that the elastic telescopic rod 7 is elastically extended. The retractable plate 702 drives the strap 602 to move to the upper side of the logistics goods. As the first rotating rod 6 drives the first reel 601 to continuously reel up the strap 602, the strap 602 is tied to the upper side of the logistics goods. During this period, the elastic telescopic rod 7 and the elastic telescopic plate 702 are forced to shrink until the strap 602 abuts against the logistics goods. As the second rotating rod 801 continues to rotate, the second reel 802 on the second rotating rod 801 releases the first pull rope 8021, and the rotating plate 4 flips relative to the fixed plate 3 under the action of the first torsion spring, so that the rotating plate 4 abuts and clamps the side of the logistics goods on the support plate 2.

[0055] Example 3: Reference Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 , a multi-rotor drone for logistics transportation, based on Example 2, further, the rotating plate 4 includes a plurality of splints 401, a second pin 402 is arranged between two adjacent splints 401, a second torsion spring is arranged between the second pin 402 and the splint 401, and one end of the first pull rope 8021 away from the second reel 802 is fixedly connected to the splint 401 which is farthest from the fixed plate 3 of the rotating plate 4.

[0056] Furthermore, a ratchet 10 is fixed on the second pin shaft 402, and a connecting seat 11 is provided on the clamping plate 401 and the fixed plate 3. A limiting rod 111 that is rotatably connected to the connecting seat 11 through a third pin shaft and is movably opposed to the ratchet 10, and a third torsion spring is sleeved on the third pin shaft for driving the limiting rod 111 to reset and rotate.

[0057] Specifically, as the second rotating rod 801 continues to rotate, the second reel 802 on the second rotating rod 801 releases the first pull rope 8021, and the rotating plate 4 flips relative to the fixed plate 3 under the action of the first torsion spring, and each clamping plate 401 on the rotating plate 4 flips under the action of the second torsion spring, so that the clamping plate 401 on the rotating plate 4 fits the side of the logistics cargo, and the limit rod 111 restricts the rotation of the ratchet 10, maintaining the clamping and abutting state of the clamping plate 401 on the side of the logistics cargo, thereby improving the stability of logistics cargo transportation.

[0058] Example 4: Reference Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 , a multi-rotor drone for logistics transportation, based on Example 3, further, a first slide groove 12 is provided on the splint 401 and the fixed plate 3, a first slider 121 is slidably connected in the first slide groove 12, a first elastic element 122 is arranged between the first slider 121 and the inner wall of the first slide groove 12, a limit seat 123 that is movably opposed to the connecting seat 11 is connected to the first slider 121, a second slide groove 13 is provided on the splint 401 and the fixed plate 3, a second slider 131 fixedly connected to the connecting seat 11 is slidably connected in the second slide groove 13, and a second elastic element 132 is arranged between the second slider 131 and the inner wall of the second slide groove 13.

[0059] Furthermore, the first pull rope 8021 is fixedly connected to a plurality of limit seats 123 , and a guide seat 14 slidably connected to the first pull rope 8021 is provided on each clamping plate 401 .

[0060] Specifically, when the logistics goods on the support plate 2 need to be unloaded, the driving motor 5 drives the first rotating rod 6 to flip, the first reel 601 releases the binding belt 602, and the binding belt 602 no longer binds the upper side of the logistics goods, and the second rotating rod 801 drives the second reel 802 to reel in the first pull rope 8021, and the third reel 803 to reel in the second pull rope 8031; when the first pull rope 8021 is reeled in, it is straightened under the action of the guide seat 14, so that the first pull rope 8021 applies a downward pulling force to the limiting seat 123, and the limiting seat 123 moves downward and no longer abuts against the connecting seat 11, and the first elastic element 122 is deformed, and as the first pull rope 8021 is reeled in, it continues to apply a pulling force to the clamping plate 4 The pulling force of 01 causes the ratchet teeth of the ratchet 10 to push the inclined surface of the limiting rod 111. The limiting rod 111 is forced to drive the connecting seat 11 to move horizontally, and the second elastic element 132 is compressed. The limiting rod 111 no longer limits the ratchet 10. With the continuous pulling of the first pull rope 8021, the clamping plates 401 fit together and no longer separate, so that the rotating plate 4 is pulled into a straight line again, and finally the rotating plate 4 and the fixed plate 3 are placed horizontally, releasing the clamping of the rotating plate 4 on the side of the logistics goods, and then removing the logistics goods from the support plate 2, so that the logistics goods can be quickly taken and placed, which is convenient for improving the logistics transportation efficiency; the first elastic element 122 and the second elastic element 132 are both set as springs.

[0061] The present invention also discloses a method for using a multi-rotor drone for logistics transportation, comprising the following steps:

[0062] S1: When the drone body 1 is used to transport logistics goods, the logistics goods are placed on the support plate 2, and the logistics goods can also be placed on the support plane formed by the elastic telescopic rod 7 and the rotating plate 4;

[0063] S2: Then the driving motor 5 is controlled to run, and the output shaft of the driving motor 5 drives the first rotating rod 6 to rotate. When the first rotating rod 6 rotates, the active bevel gear 603 meshes with the driven bevel gear 8011 on the second rotating rod 801 for transmission, and the second rotating rod 801 drives the third reel 803 to rotate and releases the second pull rope 8031. The elastic telescopic rod 7 is reset and rotated under the action of the reset coil spring, so that the elastic telescopic rod 7 drives the strap 602 to move to the upper side of the logistics goods through the elastic telescopic plate 702. As the first rotating rod 6 drives the first reel 601 to continuously reel up the strap 602, the strap 602 is bound to the upper side of the logistics goods, and during this period, the elastic telescopic rod 7 and the elastic telescopic plate 702 are forced to shrink until the strap 602 contacts the logistics goods;

[0064] S3: As the second rotating rod 801 continues to rotate, the second reel 802 on the second rotating rod 801 releases the first pull rope 8021, and the rotating plate 4 flips relative to the fixed plate 3 under the action of the first torsion spring, and each clamping plate 401 on the rotating plate 4 flips under the action of the second torsion spring, so that the clamping plate 401 on the rotating plate 4 fits the side of the logistics cargo, and the limit rod 111 limits the rotation of the ratchet 10, so as to keep the clamping contact state of the clamping plate 401 against the side of the logistics cargo;

[0065] S4: When the logistics goods on the support plate 2 need to be unloaded, the driving motor 5 drives the first rotating rod 6 to flip, the first reel 601 releases the binding belt 602, the binding belt 602 no longer binds the upper side of the logistics goods, and the second rotating rod 801 drives the second reel 802 to reel in the first pull rope 8021, and the third reel 803 to reel in the second pull rope 8031;

[0066] When the second pull rope 8031 ​​is rolled up, a pulling force is applied to the side plate 9 on the elastic telescopic rod 7, so that the elastic telescopic rod 7 drives the binding belt 602 to move to the side of the support plate 2 through the elastic telescopic plate 702;

[0067] When the first pull rope 8021 is rolled up, it is stretched straight by the guide seat 14, so that the first pull rope 8021 applies a downward pulling force to the limit seat 123, and the limit seat 123 moves downward and no longer abuts against the connecting seat 11. As the first pull rope 8021 is rolled up, it continues to apply a pulling force to the clamping plate 401, so that the ratchet teeth of the ratchet 10 push the inclined surface of the limit rod 111, and the limit rod 111 is forced to drive the connecting seat 11 to move horizontally, and the limit rod 111 no longer limits the ratchet 10. As the first pull rope 8021 is continuously pulled, the clamping plates 401 fit together and no longer separate, so that the rotating plate 4 is pulled into a straight line again, and finally the rotating plate 4 and the fixed plate 3 are placed horizontally, so that the clamping of the rotating plate 4 on the side of the logistics goods is released, and the logistics goods are removed from the support plate 2.

[0068] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-rotor drone for logistics transportation, comprising a drone body (1), characterized in that: Also includes: A support plate (2), the support plate (2) being arranged on the top of the drone body (1) and used for supporting logistics goods, and a connecting rod (101) being arranged between the support plate (2) and the drone body (1); An upper clamping mechanism, the upper clamping mechanism being movably arranged on the support plate (2) and used for clamping and limiting the upper side of the logistics goods; A side clamping mechanism, the side clamping mechanism being arranged on both sides of the support plate (2) and being used for clamping and limiting the side surfaces of the logistics goods, the side clamping mechanism comprising a fixed plate (3) fixedly connected to the support plate (2) and a rotating plate (4) rotatably connected to the fixed plate (3) via a first pin shaft (301), the first pin shaft (301) being sleeved with a first torsion spring for driving the rotating plate (4) to return to rotation; Wherein, a driving motor (5) for driving the upper clamping mechanism and the side clamping mechanism is arranged at the bottom of the support plate (2); The upper clamping mechanism comprises a first rotating rod (6) rotatably connected to the bottom of the support plate (2); a first reel (601) is provided on the first rotating rod (6); a strap (602) is wound around the first reel (601); a supporting assembly for supporting the strap (602) is provided on the support plate (2); and an output shaft of the drive motor (5) is fixedly connected to the first rotating rod (6); The support assembly comprises elastic telescopic rods (7) rotatably arranged at both ends of the support plate (2), a return coil spring is arranged between the elastic telescopic rods (7) and the support plate (2), a connecting plate (701) is arranged at the end of each elastic telescopic rod (7), an end of the binding belt (602) away from the first reel (601) passes through one of the connecting plates (701) and is connected to the other connecting plate (701), each connecting plate (701) is connected to an elastic telescopic plate (702), and a limit frame (703) slidably connected to the binding belt (602) is arranged at the end of the elastic telescopic plate (702).

2. A multi-rotor UAV for logistics transportation according to claim 1, characterized in that: The side clamping mechanism comprises a support plate (8) fixedly arranged at the bottom of the support plate (2); a second rotating rod (801) is rotatably connected to the support plate (8); a second reel (802) is arranged on the second rotating rod (801); a first pull rope (8021) is wound around and connected to the second reel (802); an end of the first pull rope (8021) away from the second reel (802) is connected to the rotating plate (4); a driven bevel gear (8011) is arranged on the second rotating rod (801); and a driving bevel gear (603) meshing with the driven bevel gear (8011) is arranged on the first rotating rod (6).

3. A multi-rotor UAV for logistics transportation according to claim 2, characterized in that: The second rotating rod (801) is also provided with a third reel (803), the third reel (803) is wound with a second pull rope (8031), and one end of the second pull rope (8031) away from the third reel (803) is connected to a side plate (9) fixedly connected to the elastic telescopic rod (7).

4. A multi-rotor UAV for logistics transportation according to claim 3, characterized in that: The rotating plate (4) comprises a plurality of clamping plates (401), a second pin shaft (402) is arranged between two adjacent clamping plates (401), a second torsion spring is arranged between the second pin shaft (402) and the clamping plate (401), and an end of the first pull rope (8021) away from the second reel (802) is fixedly connected to the clamping plate (401) of the rotating plate (4) which is farthest away from the fixed plate (3).

5. The multi-rotor UAV for logistics transportation according to claim 4, characterized in that: A ratchet (10) is fixedly mounted on the second pin shaft (402), and a connecting seat (11) is disposed on both the clamping plate (401) and the fixing plate (3). A limiting rod (111) is rotatably connected to the connecting seat (11) via a third pin shaft and is movably opposed to the ratchet (10). A third torsion spring is sleeved on the third pin shaft and is used to drive the limiting rod (111) to return to rotation.

6. The multi-rotor UAV for logistics transportation according to claim 5, characterized in that: The clamping plate (401) and the fixed plate (3) are both provided with a first sliding groove (12), a first slider (121) is slidably connected in the first sliding groove (12), a first elastic element (122) is arranged between the first slider (121) and the inner wall of the first sliding groove (12), the first slider (121) is connected to a limit seat (123) that is movably opposed to the connecting seat (11), the clamping plate (401) and the fixed plate (3) are both provided with a second sliding groove (13), a second slider (131) fixedly connected to the connecting seat (11) is slidably connected in the second sliding groove (13), and a second elastic element (132) is arranged between the second slider (131) and the inner wall of the second sliding groove (13).

7. A multi-rotor UAV for logistics transportation according to claim 6, characterized in that: The first pull rope (8021) is fixedly connected to a plurality of limit seats (123), and each of the clamping plates (401) is provided with a guide seat (14) slidably connected to the first pull rope (8021).

8. A method for using the multi-rotor drone for logistics transportation according to claim 7, characterized in that: The following steps are involved: S1: When the drone body (1) is used to transport logistic goods, the logistic goods are placed on the support plate (2), and the logistic goods can also be placed on the support plane formed by the elastic telescopic rod (7) and the rotating plate (4); S2: Then, the driving motor (5) is controlled to operate, and the output shaft of the driving motor (5) drives the first rotating rod (6) to rotate. When the first rotating rod (6) rotates, the active bevel gear (603) and the driven bevel gear (8011) on the second rotating rod (801) mesh and transmit, and the second rotating rod (801) drives the third reel (803) to rotate and release the second pull rope (8031). The elastic telescopic rod (7) is reset and rotated under the action of the reset coil spring, so that the elastic telescopic rod (7) drives the binding belt (602) to move to the upper side of the logistics goods through the elastic telescopic plate (702). As the first rotating rod (6) drives the first reel (601) to continuously reel the binding belt (602), the binding belt (602) is bound to the upper side of the logistics goods, and during this period, the elastic telescopic rod (7) and the elastic telescopic plate (702) are contracted by force until the binding belt (602) contacts the logistics goods; S3: As the second rotating rod (801) continues to rotate, the second reel (802) on the second rotating rod (801) releases the first pull rope (8021), and the rotating plate (4) flips relative to the fixed plate (3) under the action of the first torsion spring, and each clamping plate (401) on the rotating plate (4) flips under the action of the second torsion spring, so that the clamping plate (401) on the rotating plate (4) fits the side surface of the logistics cargo, and the limit rod (111) limits the rotation of the ratchet wheel (10), so as to maintain the clamping contact state of the clamping plate (401) against the side surface of the logistics cargo; S4: When the logistics goods on the support plate (2) need to be unloaded, the driving motor (5) drives the first rotating rod (6) to flip, the first reel (601) releases the binding belt (602), the binding belt (602) no longer binds the upper side of the logistics goods, and the second rotating rod (801) drives the second reel (802) to reel in the first pull rope (8021), and the third reel (803) to reel in the second pull rope (8031); When the second pull rope (8031) is rolled up, a pulling force is applied to the side plate (9) on the elastic telescopic rod (7), so that the elastic telescopic rod (7) drives the binding belt (602) to move to the side of the support plate (2) via the elastic telescopic plate (702); When the first pull rope (8021) is rolled up, it is stretched straight by the guide seat (14), so that the first pull rope (8021) applies a downward pulling force to the limit seat (123), and the limit seat (123) moves downward and no longer contacts the connecting seat (11). As the first pull rope (8021) is rolled up, it continues to apply a pulling force to the clamping plate (401), so that the ratchet teeth of the ratchet wheel (10) push the inclined surface of the limit rod (111), and the limit rod (111) is driven by the force to drive the connecting seat (11) to move horizontally. The limit rod (111) no longer limits the ratchet wheel (10). As the first pull rope (8021) is continuously pulled, the clamping plates (401) fit each other and no longer separate, so that the rotating plate (4) is pulled into a straight line again, and finally the rotating plate (4) and the fixed plate (3) are placed horizontally, and the clamping of the rotating plate (4) on the side of the logistics goods is released, and the logistics goods are removed from the support plate (2).

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