An unmanned aerial vehicle delivery device

Abstract

The unmanned aerial vehicle launching device is characterized in that the unmanned aerial vehicle is connected with the triangular line wheel mechanism, and the triangular line wheel mechanism is connected with the triangular expansion platform.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of unmanned aerial vehicles, and more particularly to an unmanned aerial vehicle launching device. BACKGROUND

[0002] As a new technology product, unmanned aerial vehicles are used in many fields for efficient operation. The current small and medium-sized unmanned aerial vehicles have a small loading radius in conventional transportation operations, and the design of the loading and pulling mechanism is stereotyped. For example, CN218619964U, a multi-state sling for unmanned aerial vehicles, discloses a multi-state sling for unmanned aerial vehicles, comprising a crossbeam, a hoisting assembly for hoisting the crossbeam is arranged on the top of the crossbeam, machine body connecting pieces are arranged at both ends of the crossbeam, the machine body connecting pieces comprise a machine body connecting plate and a machine body connecting lug arranged on one side of the machine body connecting plate, a connecting opening clamping groove is arranged on the side of the machine body connecting lug away from the machine body connecting plate, and the machine body connecting lug is axially slidably connected with the end of the crossbeam through the connecting opening clamping groove; positioning and locking pieces are also arranged at both ends of the crossbeam, and the positioning and locking pieces abut against the side surface of the machine body connecting lug to axially position the machine body connecting lug; the utility model can adaptively hoist and adjust the gravity center of unmanned aerial vehicles with different gravity center positions in different states, so that the hoisting gravity center of the sling is vertically collinear with the gravity center of the unmanned aerial vehicle, which not only can adapt to the hoisting of unmanned aerial vehicles in different states, but also can ensure the stability of the unmanned aerial vehicle hoisting process. The utility model has the advantages of simple structure and practicality, but the matching range of the hoisting form and structure is small, and the hoisting structure is a conventional mechanism that can be adjusted by a person skilled in the art according to actual conditions. For example, CN114852882A, an unmanned aerial vehicle hoisting device, discloses an unmanned aerial vehicle hoisting device comprising a primary hoist arm, a secondary hoist arm, a hoisting mechanism, and a driving mechanism. The primary hoist arm is fixedly arranged on the upper side wall of the vehicle compartment; the secondary hoist arm is arranged in the primary hoist arm and can be telescopic along one end of the primary hoist arm; the hoisting mechanism is used for fixedly connecting with the unmanned aerial vehicle; the driving mechanism comprises a driving assembly for driving the secondary hoist arm to be telescopic along one end of the primary hoist arm, a moving trolley arranged on the secondary hoist arm, a first fixed pulley and a second fixed pulley oppositely arranged at the front end of the secondary hoist arm, a third fixed pulley arranged at the rear end of the primary hoist arm, a first fixing piece and a second fixing piece arranged on both sides of the front end of the primary hoist arm, and a steel wire rope sequentially connected with the middle part of the primary hoist arm, the first fixing piece, the third fixed pulley, the moving trolley, the first fixed pulley, the first fixing piece, the second fixed pulley, and the second fixing piece. The structure of the present application is compact, and can realize the fast movement of hoisting goods in a limited space. The hoisting structure of the present application has a limited size range for goods, and although it can meet the normal use requirements in waterproofing, the loading radius is small, so the production capacity of the device is small, and the hoisting structure is a conventional mechanism that can be adjusted by a person skilled in the art according to actual conditions. SUMMARY

[0003] The unmanned aerial vehicle delivery device can realize hoisting and transferring of objects by unmanned aerial vehicles, the delivery loading platform has functions such as manual expansion and contraction, and can adjust the bearing radius of the triangular platform in real time according to the size of the object, and can realize synchronous expansion and contraction with the triangular loading platform through the triangular wire wheel mechanism, so that the delivery loading platform has stability and uniformity during hoisting operation.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] An unmanned aerial vehicle delivery device, characterized in that it comprises a load-carrying unmanned aerial vehicle, a triangular wire wheel mechanism and a triangular expansion platform, wherein the load-carrying unmanned aerial vehicle is connected with the triangular wire wheel mechanism, and the triangular wire wheel mechanism is connected with the triangular expansion platform.

[0006] As a further optimization of the technical solution, the present application provides an unmanned aerial vehicle delivery device, wherein the load-carrying unmanned aerial vehicle comprises an unmanned aerial vehicle frame, a panel A, a panel B, a flight power group A and a flight power group B, wherein the panel A, the panel B, the flight power group A and the flight power group B are fixedly connected with the unmanned aerial vehicle frame.

[0007] As a further optimization of the technical solution, the present application provides an unmanned aerial vehicle delivery device, wherein the triangular wire wheel mechanism comprises a triangular top plate, a support arm A, a motor A, a steel wire bundle A, a chuck pulley set A, a support arm B, a motor B, a steel wire bundle B, a chuck pulley set B, a support arm C, a motor C, a steel wire bundle C and a chuck pulley set C, wherein the support arm A, the support arm B and the support arm C are fixedly connected with the triangular top plate, the connecting rod A and the connecting rod B are fixedly connected with the shaft A and the shaft B, the support arm A is rotationally connected with the shaft A, the connecting rod B is fixedly connected with the motor A, the output shaft of the motor A is fixedly connected with the steel wire bundle A, the steel wire bundle A is rotationally connected with the connecting rod A, the chuck pulley set A and the crank A are rotationally connected with the shaft B, the crank A is rotationally connected with the shaft sleeve set A, the connecting rod C and the connecting rod D are fixedly connected with the shaft C and the shaft D, the support arm B is rotationally connected with the shaft C, the connecting rod D is fixedly connected with the motor B, the output shaft of the motor B is fixedly connected with the steel wire bundle B, the steel wire bundle B is rotationally connected with the connecting rod C, the chuck pulley set B and the crank B are rotationally connected with the shaft D, the crank B is rotationally connected with the shaft sleeve set B, the support arm C is rotationally connected with the shaft E, the connecting rod E and the connecting rod F are fixedly connected with the shaft E and the shaft F, the connecting rod F is fixedly connected with the motor C, the output shaft of the motor C is fixedly connected with the steel wire bundle C, the steel wire bundle C is rotationally connected with the connecting rod E, the chuck pulley set C and the crank C are rotationally connected with the shaft F, the crank C is rotationally connected with the shaft sleeve set C, and the shaft sleeve set A, the shaft sleeve set B and the shaft sleeve set C are rotationally connected with the shaft G.

[0008] As a further optimization of the technical solution, the unmanned aerial vehicle launching device, the triangular expansion platform comprises a triangular plate A, a ratchet wheel fixing assembly, a hand-operated rotating shaft, a cam, a ratchet, a spring, a ratchet wheel, and a triangular plate B, wherein the ratchet wheel fixing assembly is fixedly connected with the triangular plate A, the shaft fixing plate A and the shaft fixing plate B are fixedly connected with the ratchet wheel fixing assembly, the hand-operated rotating shaft is fixedly connected with the cam, the shaft fixing plate B is rotationally connected with the hand-operated rotating shaft output shaft, the cam is connected with the pulley A, the pulley A and the pulley B are rotationally connected with the triangular pulley fixing plate, the pulley B is rotationally connected with the ratchet, the triangular pulley fixing plate and the ratchet are meshingly connected with the ratchet wheel, the ratchet is fixedly connected with the shaft pin, the shaft pin is connected with the spring column, the spring column provides the spring and the spring pin, the spring and the spring pin are connected with the ratchet wheel fixing assembly, the shaft H is rotationally connected with the shaft fixing plate A, the shaft H is fixedly connected with the triangular plate B, the L-shaped connecting rod A, the L-shaped connecting rod B, and the L-shaped connecting rod C are rotationally connected with the triangular plate B, the connecting rod I, the connecting rod J, the connecting rod K, the connecting rod L, the connecting rod M, and the connecting rod N are rotationally connected with the triangular plate A, the L-shaped connecting rod A, the connecting rod I, and the connecting rod J are rotationally connected with the steel wire rope fixed connecting rod A, the L-shaped connecting rod B, the connecting rod K, and the connecting rod L are rotationally connected with the steel wire rope fixed connecting rod B, and the L-shaped connecting rod C, the connecting rod M, and the connecting rod N are rotationally connected with the steel wire rope fixed connecting rod C.

[0009] The unmanned aerial vehicle launching device has the following beneficial effects:

[0010] The unmanned aerial vehicle launching device has the following beneficial effects: 1. The object is lifted and transferred by the unmanned aerial vehicle, the launching platform has the functions of manual expansion and contraction, and the triangular platform bearing radius can be adjusted in real time according to the size of the object; 2. The triangular line wheel mechanism can realize synchronous expansion and contraction with the triangular launching platform, so that the launching platform has stability and uniformity during lifting operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] The application will be further described in detail below in combination with the drawings and specific implementation methods.

[0012] Figure 1 is the overall structure of the application Figure 1 ;

[0013] Figure 2 is the overall structure of the application Figure 2 ;

[0014] Figure 3 is the overall structure of the application Figure 3 ;

[0015] Figure 4 is the structure of the load-carrying unmanned aerial vehicle of the application Figure 1 ;

[0016] Figure 5is a schematic diagram of the triangular line wheel mechanism structure of the present application Figure 1 ;

[0017] Figure 6 is a schematic diagram of the triangular line wheel mechanism structure of the present application Figure 2 ;

[0018] Figure 7 is a schematic diagram of the triangular line wheel mechanism structure of the present application Figure 3 ;

[0019] Figure 8 is a schematic diagram of the triangular expansion platform structure of the present application Figure 1 ;

[0020] Figure 9 is a schematic diagram of the triangular expansion platform structure of the present application Figure 2 ;

[0021] Figure: load-carrying unmanned aerial vehicle 1; unmanned aerial vehicle frame 101; panel A 102; panel B 103; flight power group A 104; flight power group B 105; triangular line wheel mechanism 2; triangular top plate 201; support arm A 202; shaft A 203; connecting rod A 204; connecting rod B 205; motor A 206; steel wire bundle A 207; chuck pulley set A 208; shaft B 209; crank A 210; shaft sleeve set A 211; support arm B 212; shaft C 213; connecting rod C 214; connecting rod D 215; motor B 216; steel wire bundle B 217; chuck pulley set B 218; shaft D 219; crank B 220; shaft sleeve set B 221; support arm C 222; shaft E 223; connecting rod E 224; connecting rod F 225; motor C 226; steel wire bundle C 227; chuck pulley set C 228; shaft F 229; crank C 230; shaft sleeve set C 231; shaft G 232; triangular expansion platform 3; triangular plate A 301; ratchet fixing assembly 302; shaft fixing plate A 303; shaft fixing plate B 304; hand-operated rotating shaft 305; cam 306; pulley A 307; triangular pulley fixing plate 308; pulley B 309; ratchet 310; shaft pin 311; spring column 312; spring 313; spring pin 314; ratchet wheel 315; shaft H 316; triangular plate B 317; L-shaped connecting rod A 318; steel wire rope fixing connecting rod A 319; connecting rod I 320; connecting rod J 321; L-shaped connecting rod B 322; steel wire rope fixing connecting rod B 323; connecting rod K 324; connecting rod L 325; L-shaped connecting rod C 326; steel wire rope fixing connecting rod C 327; connecting rod M 328; connecting rod N 329. Specific embodiments

[0022] The present application will be further described in detail below with reference to the accompanying drawings.

[0023] The fixed connection in the device refers to fixing through welding, threaded fixing and the like, different fixing modes are used in combination with different use environments, the rotating connection refers to fixing the bearing on the shaft by baking, the shaft or the shaft hole is provided with a spring retainer groove, the axial fixation of the bearing is realized by clamping the elastic retainer in the retainer groove, the rotation is realized, or the meshing rotation between the gears. Embodiment one:

[0025] The following will be combined Figures 1-9 to illustrate this embodiment, an unmanned aerial vehicle delivery device, comprising a load-carrying unmanned aerial vehicle 1, a triangular line wheel mechanism 2, a triangular expansion platform 3, the load-carrying unmanned aerial vehicle 1 is connected with the triangular line wheel mechanism 2, the triangular line wheel mechanism 2 is connected with the triangular expansion platform 3. Embodiment two:

[0027] The following will be combined Figures 1-9 to illustrate this embodiment, this embodiment further illustrates embodiment one, the load-carrying unmanned aerial vehicle 1 comprises an unmanned aerial vehicle frame 101, a panel A 102, a panel B 103, a flight power group A 104, and a flight power group B 105, wherein the panel A 102, the panel B 103, the flight power group A 104, and the flight power group B 105 are fixedly connected with the unmanned aerial vehicle frame 101. Embodiment three:

[0029] The following will be combined Figures 1-9The embodiment is described, the embodiment is further described to example one, the triangular line wheel mechanism 2 includes triangular top plate 201, support arm A 202, motor A 206, steel wire bundle A 207, chuck pulley set A 208, support arm B 212, motor B 216, steel wire bundle B 217, chuck pulley set B 218, support arm C 222, motor C 226, steel wire bundle C 227, chuck pulley set C 228, wherein support arm A 202, support arm B 212, support arm C 222 are fixedly connected with triangular top plate 201, connecting rod A 204, connecting rod B 205 are fixedly connected with shaft A 203, shaft B 209, support arm A 202 is rotatably connected with shaft A 203, connecting rod B 205 is fixedly connected with motor A 206, the output shaft of motor A 206 is fixedly connected with steel wire bundle A 207, steel wire bundle A 207 is rotatably connected with connecting rod A 204, chuck pulley set A 208, crank A 210 are rotatably connected with shaft B 209, crank A 210 is rotatably connected with shaft sleeve set A 211, connecting rod C 214, connecting rod D 215 are fixedly connected with shaft C 213, shaft D 219, support arm B 212 is rotatably connected with shaft C 213, connecting rod D 215 is fixedly connected with motor B 216, the output shaft of motor B 216 is fixedly connected with steel wire bundle B 217, steel wire bundle B 217 is rotatably connected with connecting rod C 214, chuck pulley set B 218, crank B 220 are rotatably connected with shaft D 219, crank B 220 is rotatably connected with shaft sleeve set B 221, support arm C 222 is rotatably connected with shaft E 223, connecting rod E 224, connecting rod F 225 are fixedly connected with shaft E 223, shaft F 229, connecting rod F 225 is fixedly connected with motor C 226, the output shaft of motor C 226 is fixedly connected with steel wire bundle C 227, steel wire bundle C 227 is rotatably connected with connecting rod E 224, chuck pulley set C 228, crank C 230 are rotatably connected with shaft F 229, crank C 230 is rotatably connected with shaft sleeve set C 231, shaft sleeve set A 211, shaft sleeve set B 221, shaft sleeve set C 231 are rotatably connected with shaft G 232. Specific embodiment four:

[0031] The following is combined Figures 1-9To illustrate the present embodiment, the present embodiment further illustrates the first embodiment, the triangular expansion platform 3 comprises a triangular plate A 301, a ratchet fixing assembly 302, a hand crank shaft 305, a cam 306, a ratchet wheel 315, a triangular plate B 317, wherein the ratchet fixing assembly 302 is fixedly connected with the triangular plate A 301, the shaft fixing plate A 303 and the shaft fixing plate B 304 are fixedly connected with the ratchet fixing assembly 302, the hand crank shaft 305 is fixedly connected with the cam 306, the shaft fixing plate B 304 is rotatably connected with the output shaft of the hand crank shaft 305, the cam 306 is connected with the pulley A 307, the pulley A 307 and the pulley B 309 are rotatably connected with the triangular pulley fixing plate 308, the pulley B 309 is rotatably connected with the ratchet 310, the triangular pulley fixing plate 308 and the ratchet 310 are meshingly connected with the ratchet wheel 315, the ratchet 310 is fixedly connected with the shaft pin 311, the shaft pin 311 is connected with the spring column 312, the spring column 312 is connected with the spring 313 and the spring pin 314, the spring 313 and the spring pin 314 are connected with the ratchet fixing assembly 302, the shaft H 316 is rotatably connected with the shaft fixing plate A 303, the shaft H 316 is fixedly connected with the triangular plate B 317, the L-shaped connecting rod A 318, the L-shaped connecting rod B 322 and the L-shaped connecting rod C 326 are rotatably connected with the triangular plate B 317, the connecting rod I 320, the connecting rod J 321, the connecting rod K 324, the connecting rod L 325, the connecting rod M 328 and the connecting rod N 329 are rotatably connected with the triangular plate A 301, the L-shaped connecting rod A 318, the connecting rod I 320 and the connecting rod J 321 are rotatably connected with the steel wire rope fixing connecting rod A 319, the L-shaped connecting rod B 322, the connecting rod K 324 and the connecting rod L 325 are rotatably connected with the steel wire rope fixing connecting rod B 323, the L-shaped connecting rod C 326, the connecting rod M 328 and the connecting rod N 329 are rotatably connected with the steel wire rope fixing connecting rod C 327.

[0032] The unmanned aerial vehicle delivery device has the advantages that: as a new technology, unmanned aerial vehicles are committed to various industries, and in the use process of traditional small and medium-sized loading type and hanging type unmanned aerial vehicles, problems such as low transportation efficiency and small loading space are found, and although the ordinary hoisting type structure is simple and practical, it actually directly affects the balance of the unmanned aerial vehicle, and often in the past, the wear and tear of the parts of the unmanned aerial vehicle is accelerated, and the loss of the parts is increased. The core of the unmanned aerial vehicle load mainly revolves around the problems of large range and high load, and based on the background of modern agriculture, the needs of the bundling and packaging transportation of crops and medicinal herbs in mountainous areas are met, and from the actual point of view, in order to more closely show the advantages of the unmanned aerial vehicle, the present application provides a device capable of increasing the loading platform, which aims to expand the carrying radius of the delivery load platform on the basis of the basic size of the unmanned aerial vehicle, and solves the problem of narrow storage space inherent in the unmanned aerial vehicle, and the specific implementation steps are that: the flight power groups A104 and B105 in the load-carrying unmanned aerial vehicle 1 are started, the unmanned aerial vehicle starts to fly, when the unmanned aerial vehicle flies to the required position, the scientific height of the unmanned aerial vehicle and the head of the person is implemented, and then the motors A206, B216 and C226 in the triangular wire mechanism 2 are started synchronously, when the motor A206 is started, the output shaft drives the steel wire bundle A207 to rotate along the shaft A203, the out rope end of the steel wire bundle A207 extends downward through two groups of fixed pulleys in the chuck pulley set A208, and hangs the steel wire rope fixed connecting rod A319 in the triangular expansion platform 3, when the motor B216 is started, the output shaft drives the steel wire bundle B217 to rotate along the shaft C213, the out rope end of the steel wire bundle B217 extends downward through two groups of fixed pulleys in the chuck pulley set B218, and hangs the steel wire rope fixed connecting rod C327 in the triangular expansion platform 3, when the motor C226 is started, the output shaft drives the steel wire bundle C227 to rotate along the shaft E223, the out rope end of the steel wire bundle C227 extends downward through two groups of fixed pulleys in the chuck pulley set C228, and hangs the steel wire rope fixed connecting rod B323 in the triangular expansion platform 3, the triangular expansion platform 3 descends at the same rate, when the triangular expansion platform 3 descends to the required height, the motors A206, B216 and C226 stop running, according to the size of the loaded goods, the carrying radius of the triangular expansion platform 3 is increased by manually adjusting the triangular expansion platform 3, the shaft fixing plate B304 is rotated by manually rotating the hand-operated rotating shaft 305, when the cam 306 rotates to a small radius, because the cam 306 is magnetic and has adsorption force, the triangular pulley fixing plate 308 is driven to rotate along the shaft fixing plate B304 through the pulley A307, when the triangular pulley fixing plate 308 is rotated, the triangular pulley fixing plate 308 is disengaged from the ratchet wheel 315, when the triangular pulley fixing plate 308 is disengaged from the ratchet wheel 315, the ratchet 310 is pulled backward, and when the cam 306 rotates to a large radius, the triangular pulley fixing plate 308 is driven to move forward,When the pusher is pushed forward by the ratchet 310, the ratchet wheel 315 is pushed forward, and when the ratchet wheel 315 rotates, the triangular plate B 317 is rotated by the shaft H 316, and when the triangular plate B 317 rotates, the L-shaped connecting rod A 318, the L-shaped connecting rod B 322 and the L-shaped connecting rod C 326 are rotated, and when the L-shaped connecting rod A 318 rotates, the steel wire rope fixing connecting rod A 319, the connecting rod I 320 and the connecting rod J 321 are rotated, and when the L-shaped connecting rod B 322 rotates, the steel wire rope fixing connecting rod B 323, the connecting rod K 324 and the connecting rod L 325 are rotated, and when the L-shaped connecting rod C 326 rotates, the steel wire rope fixing connecting rod C 327, the connecting rod M 328 and the connecting rod N 329 are rotated, wherein when the steel wire rope fixing connecting rod A 319, the connecting rod I 320, the connecting rod J 321, the steel wire rope fixing connecting rod B 323, the connecting rod K 324, the connecting rod L 325, the steel wire rope fixing connecting rod C 327, the connecting rod M 328 and the connecting rod N 329 rotate, the rotating direction is outward, and when the outward, the steel wire rope fixing connecting rod A 319, the steel wire rope fixing connecting rod B 323 and the steel wire rope fixing connecting rod C 327 rotate, the triangular line wheel mechanism 2 mechanical arm part is simultaneously pulled out in sequence by the steel wire bundle A 207, the steel wire bundle C 227 and the steel wire bundle B 217, which can make the triangular line wheel mechanism 2 more match the triangular expansion platform 3, so that the triangular expansion platform 3 is expanded outward at the same time, and the triangular is still fixed synchronously by the steel wire at the same time. Taking the steel wire bundle A 207 driving group as an example, the specific outward expansion steps of the triangular line wheel mechanism 2 mechanical arm are as follows: when the steel wire rope fixing connecting rod A 319 is expanded outward, the chuck pulley set A 208 is pulled by the steel wire bundle A 207, the steel wire bundle A 207 pulls the connecting rod A 204 and the connecting rod B 205 outward through the chuck pulley set A 208, and when the connecting rod A 204 and the connecting rod B 205 are pulled outward, the connecting rod A 204 and the connecting rod B 205 are expanded outward along the support arm A 202 by the shaft A 203, and when the connecting rod A 204 and the connecting rod B 205 rotate, the shaft sleeve set A 211 is driven by the crank A 210 to move linearly downward, and since the driving process and result of the other two groups of steel wire bundle B 217 and steel wire bundle C 227 are completely consistent with those of the steel wire bundle A 207 driving group, when the shaft sleeve set A 211, the shaft sleeve set B 221 and the shaft sleeve set C 231 move downward, they are completely located at the absolute center line of the triangular line wheel mechanism 2, so the outward expansion platform corresponding to the triangular line wheel mechanism 2 and the triangular expansion platform 3 is completely corresponding, and the steel wire bundle A 207, the steel wire bundle C 227 and the steel wire bundle B 217 will not be pulled when the triangular expansion platform 3 is expanded in the original style.When the goods are fixed, the flight power group A 104 and the flight power group B 105 are started, and the unmanned aerial vehicle transports the goods to the specified location according to the transportation task.

[0033] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present application also belong to the protection scope of the present application.

Claims

1. An unmanned aerial vehicle delivery apparatus, characterized by: The utility model provides a kind of load-carrying unmanned aerial vehicle (1), triangular line wheel mechanism (2), triangular extension platform (3), load-carrying unmanned aerial vehicle (1) is connected with triangular line wheel mechanism (2), triangular line wheel mechanism (2) is connected with triangular extension platform (3); The triangular line wheel mechanism (2) includes a triangular top plate (201), a support arm A (202), a motor A (206), a steel wire bundle A (207), a chuck pulley set A (208), a support arm B (212), a motor B (216), a steel wire bundle B (217), a chuck pulley set B (218), a support arm C (222), a motor C (226), a steel wire bundle C (227), a chuck pulley set C (228), wherein the support arm A (202), the support arm B (212) and the support arm C (222) are fixedly connected with the triangular top plate (201), the connecting rod A (204) and the connecting rod B (205) are fixedly connected with the shaft A (203) and the shaft B (209), the support arm A (202) is rotatably connected with the shaft A (203), the connecting rod B (205) is fixedly connected with the motor A (206), the output shaft of the motor A (206) is fixedly connected with the steel wire bundle A (207), the steel wire bundle A (207) is rotatably connected with the connecting rod A (204), the chuck pulley set A (208) and the crank A (210) are rotatably connected with the shaft B (209), the crank A (210) is rotatably connected with the shaft sleeve set A (211), the connecting rod C (214) and the connecting rod D (215) are fixedly connected with the shaft C (213) and the shaft D (219), the support arm B (212) is rotatably connected with the shaft C (213), the connecting rod D (215) is fixedly connected with the motor B (216), the output shaft of the motor B (216) is fixedly connected with the steel wire bundle B (217), the steel wire bundle B (217) is rotatably connected with the connecting rod C (214), the chuck pulley set B (218) and the crank B (220) are rotatably connected with the shaft D (219), the crank B (220) is rotatably connected with the shaft sleeve set B (221), the support arm C (222) is rotatably connected with the shaft E (223), the connecting rod E (224) and the connecting rod F (225) are fixedly connected with the shaft E (223) and the shaft F (229), the connecting rod F (225) is fixedly connected with the motor C (226), the output shaft of the motor C (226) is fixedly connected with the steel wire bundle C (227), the steel wire bundle C (227) is rotatably connected with the connecting rod E (224), the chuck pulley set C (228) and the crank C (230) are rotatably connected with the shaft F (229), the crank C (230) is rotatably connected with the shaft sleeve set C (231), the shaft sleeve set A (211), the shaft sleeve set B (221) and the shaft sleeve set C (231) are rotatably connected with the shaft G (232); The triangular expansion platform (3) includes a triangular plate A (301), a ratchet fixing assembly (302), a hand-operated rotating shaft (305), a cam (306), a ratchet (310), a spring (313), a ratchet wheel (315), and a triangular plate B (317), wherein the ratchet fixing assembly (302) is fixedly connected with the triangular plate A (301), shaft fixing plate A (303) and shaft fixing plate B (304) are fixedly connected with the ratchet fixing assembly (302), the hand-operated rotating shaft (305) is fixedly connected with the cam (306), the shaft fixing plate B (304) is rotatably connected with the output shaft of the hand-operated rotating shaft (305), the cam (306) is connected with a pulley A (307), the pulley A (307) and a pulley B (309) are rotatably connected with a triangular pulley fixing plate (308), the pulley B (309) is rotatably connected with the ratchet (310), the triangular pulley fixing plate (308) and the ratchet (310) are meshingly connected with the ratchet wheel (315), the ratchet (310) is fixedly connected with a shaft pin (311), the shaft pin (311) is connected with a spring column (312), the spring column (312) is connected with the spring (313) and a spring pin (314), the spring (313) and the spring pin (314) are connected with the ratchet fixing assembly (302), a shaft H (316) is rotatably connected with the shaft fixing plate A (303), the shaft H (316) is fixedly connected with the triangular plate B (317), an L-shaped connecting rod A (318), an L-shaped connecting rod B (322), and an L-shaped connecting rod C (326) are rotatably connected with the triangular plate B (317), connecting rods I (320), J (321), K (324), L (325), M (328), and N (329) are rotatably connected with the triangular plate A (301), the L-shaped connecting rod A (318), the connecting rod I (320), and the connecting rod J (321) are rotatably connected with a steel wire rope fixing connecting rod A (319), the L-shaped connecting rod B (322), the connecting rod K (324), and the connecting rod L (325) are rotatably connected with a steel wire rope fixing connecting rod B (323), and the L-shaped connecting rod C (326), the connecting rod M (328), and the connecting rod N (329) are rotatably connected with a steel wire rope fixing connecting rod C (327).

2. The unmanned aerial vehicle delivery device of claim 1, wherein: The load-carrying unmanned aerial vehicle (1) includes an unmanned aerial vehicle frame (101), a panel A (102), a panel B (103), a flight power group A (104), and a flight power group B (105), wherein the panel A (102), the panel B (103), the flight power group A (104), and the flight power group B (105) are fixedly connected with the unmanned aerial vehicle frame (101).

Images