Solar express unmanned aerial vehicle

Abstract

The invention discloses a solar express unmanned aerial vehicle which comprises an unmanned aerial vehicle body, four extension arms are arranged on the side face of the unmanned aerial vehicle body, rotor wing assemblies are arranged on the extension arms, a photovoltaic assembly is arranged on the unmanned aerial vehicle body, and two supporting legs are installed on the lower portion of the unmanned aerial vehicle body. A rotary bearing mechanism is fixedly connected to the lower portion of the unmanned aerial vehicle body. According to the device, contact plates, piston cylinders, third elastic assemblies, supporting columns, cylinders, movable plates, moving rods and blocking plates are adopted, only after the four contact plates make stable contact with the ground, gas in the cylinders can be fully sucked into the piston cylinders, and therefore the downward movement of the blocking plates is accurately controlled, the blocking plates retract into connecting holes, and the working efficiency is improved. When the unmanned aerial vehicle lands on the inclined ground, blocking on the periphery of the object is relieved, the stability of the object in the express delivery process is effectively guaranteed, meanwhile, the risk that the object slides down due to the gravity effect when the unmanned aerial vehicle lands on the inclined ground is avoided, and the delivery accuracy and safety of the unmanned aerial vehicle are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a solar-powered express delivery UAV. Background Art

[0002] Unmanned aerial vehicles, also known as "drones", are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices. At the same time, solar power generation is already a relatively mature technology. Currently, many solar-powered drones are used in the express delivery field and are used to carry cargo.

[0003] During takeoff and landing, drones often face the challenge of tilted or uneven surfaces. This can make it difficult for drones to maintain balance during launch, compromising their stability and safety. Furthermore, drones are susceptible to external wind or airflow disturbances during takeoff and landing, making attitude control difficult and causing the cargo to tilt or sway. This unstable movement of cargo in mid-air can not only damage the cargo itself but also exacerbate the drone's attitude deviation, potentially leading to loss of control and a crash.

[0004] Furthermore, uneven distribution of cargo can cause the drone's center of gravity to shift. This shift is particularly noticeable during takeoff and landing, often resulting in insufficient lift on one side, further exacerbating the instability and risk of takeoff and landing. Existing technologies are insufficient to effectively address these issues, leading to the urgent need for a new type of solar-powered delivery drone. Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0006] In view of the above-mentioned problems existing in the existing solar-powered express delivery drone, the present invention is proposed.

[0007] Therefore, the object of the present invention is to provide a solar-powered express delivery drone, which is used to solve the problem.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: a solar-powered express delivery drone, comprising a drone main body, four extension arms provided on the side of the drone main body, a rotor assembly provided on the extension arms, a photovoltaic assembly provided on the drone main body, two support legs installed under the drone main body, a rotating bearing mechanism fixedly connected under the drone main body, a movable limiting mechanism fixedly connected under the rotating bearing mechanism, a connecting pipe connected to the side of the movable limiting mechanism, the connecting pipe connected to the rotating bearing mechanism, four movable support mechanisms slidably connected to the rotating support mechanism, the movable support mechanism fixedly connected to the bottom of the drone main body, the four movable support mechanisms fixedly connected to the same annular frame, the left and right sides of the annular frame are fixedly connected to contact support mechanisms, the contact support mechanism is fixedly connected to the bottom of the drone main body, the front and rear sides of the support legs are fixedly connected to mounting plates, a piston buffer mechanism is connected through the mounting plate, the side of the piston buffer mechanism is connected to a connecting pipe, and the connecting pipe is connected to the rotating bearing mechanism.

[0009] As a preferred solution of the solar-powered express delivery drone described in the present invention, the rotating bearing mechanism includes a fixed frame fixedly connected to the bottom of the drone body, a spherical groove is provided in the fixed frame, a rotating ball is rotatably connected in the groove, the rotating ball is hollow, a top plate is fixedly connected under the rotating ball, the connecting tube passes through the fixed frame and enters the groove, and the bottom end of the connecting tube passes through the rotating ball and the top plate.

[0010] As a preferred solution of the solar-powered express delivery drone described in the present invention, four vertical rods are fixedly connected under the top plate, the bottom ends of the vertical rods are fixedly connected to a placement plate, four connecting holes are opened on the placement plate, the top plate, vertical rods and placement plate are hollow, the hollow part of the placement plate is connected to a movable limiting mechanism, and the movable limiting mechanism is slidably arranged in the connecting hole.

[0011] As a preferred solution of the solar-powered express delivery drone described in the present invention, the movable support mechanism includes a connecting cylinder, which is fixedly connected to the bottom of the drone body, a connecting plate is slidably connected inside the connecting cylinder, a contact rod is fixedly connected under the connecting plate, the contact rod passes through and is slidably connected to the bottom of the connecting cylinder, and the contact rod is slidably connected to the top plate.

[0012] As a preferred solution of the solar-powered express delivery drone described in the present invention, a first air hole and a second air hole are provided on the side of the connecting tube close to the annular frame, the first air hole is located on the lower side of the second air hole, the inner diameter of the first air hole is larger than the inner diameter of the second air hole, a first elastic component is fixedly connected to the connecting plate, the top of the first elastic component is fixedly connected to the inner wall of the connecting tube, a baffle is slidably connected to the outside of the connecting tube, the baffle is set to an arc shape, the baffle blocks the second air hole, and the baffle is fixedly connected to the inner wall of the annular frame.

[0013] As a preferred solution of the solar-powered express delivery drone described in the present invention, the contact support mechanism includes an extension plate, which is fixedly connected to the annular frame, a guide sleeve is connected through the extension plate, a guide rod is slidably connected in the guide sleeve, and the top of the guide rod is fixedly connected to the drone body.

[0014] As a preferred solution of the solar-powered express delivery drone described in the present invention, the bottom end of the guide rod is fixedly connected to a limit plate, the limit plate is designed to be circular, the outer sleeve of the guide rod is provided with a second elastic component, the top end of the second elastic component is fixedly connected to the guide sleeve, the bottom end of the second elastic component is fixedly connected to the limit plate, and a connecting rod is fixedly connected under the extension plate, and the bottom end of the connecting rod is in contact with the ground.

[0015] As a preferred solution of the solar-powered express delivery drone described in the present invention, the piston buffer mechanism includes a piston cylinder connected through the mounting plate, a piston plate is slidably connected in the piston cylinder, a support column is fixedly connected under the piston plate, the support column passes through and is slidably connected under the piston cylinder, the bottom end of the support column is fixedly connected to a contact plate, the piston cylinder is connected to a connecting pipe, the connecting pipe is connected to a position in the piston cylinder located below the piston plate, a third elastic component is fixedly connected to the piston plate, and the third elastic component is fixedly connected to the inner wall of the piston cylinder.

[0016] As a preferred solution of the solar-powered express delivery drone described in the present invention, the mobile limiting mechanism includes four telescopic blocking components slidably connected in the connecting holes, the telescopic blocking components are connected by an intermediate tube, the sides of the telescopic blocking components are fixedly connected to fixed columns, and the fixed columns are fixedly connected under the placement plate, and the side of one of the telescopic blocking components is connected to the connecting pipe.

[0017] As a preferred solution of the solar-powered express delivery drone described in the present invention, the telescopic blocking assembly includes a cylinder fixedly connected to a fixed column, a movable plate is slidably connected inside the cylinder, a moving rod is fixedly connected to the movable plate, the moving rod passes through and is slidably connected to the cylinder, the top end of the moving rod is fixedly connected to a blocking plate, the blocking plate is slidably connected in the connecting hole, and the intermediate tube and the connecting tube are connected to the side of the cylinder at a position below the movable plate.

[0018] Beneficial effects of the present invention: The present invention adopts a contact plate, a piston cylinder, a third elastic component, a support column, a cylinder, a movable plate, a moving rod and a blocking plate. After the drone body takes off and leaves the ground, the contact plate automatically separates from the ground. At this time, the blocking plate quickly extends upward and is tightly connected to the connecting hole, forming a stable blocking structure on all sides, effectively ensuring that the object placed on the plate remains stable during the flight of the drone, and preventing the object from shifting due to vibration or wind. During the landing process of the drone body, the four contact plates are innovatively used to make stable contact with the ground as a trigger mechanism. Only after all four contact plates are in stable contact with the ground can the gas in the cylinder be fully sucked into the piston cylinder, thereby accurately controlling the downward movement of the blocking plate, causing it to retract into the connecting hole, and releasing the blocking of the object on all sides, effectively ensuring the stability of the object during the express delivery process, and at the same time avoiding the risk of the object sliding due to gravity when the drone lands on an inclined ground, thereby greatly improving the delivery accuracy and safety of the drone. The present invention adopts a fixed frame, a rotating ball, a top plate, and a placement plate. The weight of the object acts on the placement plate. The weight of the object is directly applied to the placement plate. Combined with the free rotation characteristics of the rotating ball in the fixed frame, the top plate can rotate appropriately, thereby achieving stability after the object is suspended. This design ensures that when the drone carries an object, the object can be firmly maintained in a predetermined position. Through the adjustment effect of the rotating ball, the present invention can effectively maintain the center of gravity position of the drone body, ensuring that the center of gravity of the entire drone system after the object is suspended is still concentrated in the middle position, optimizing the load distribution of the drone, improving the balance and stability during flight, maintaining the stability of the drone body during the flight and transporting objects, avoiding the risk of flight instability or loss of control due to center of gravity shift, and greatly improving the flight safety and transportation efficiency of the drone. The present invention utilizes a connecting tube, a first air hole, a second air hole, a shielding plate, a connecting rod, a second elastic component, a guide rod, and a guide sleeve. During rotation of the top plate, the rising portion compresses the contact rod, causing it to move upward. This in turn compresses the air within the connecting tube through the connecting plate and discharges it through the first air hole. This mechanism effectively converts mechanical motion into air pressure regulation. When the connecting plate moves downward under the control of the first elastic component, external air is drawn into the connecting tube. This process provides precise air pressure regulation for the drone, ensuring the drone's stability and controllability before takeoff. Once the drone body takes off, the connecting rod loses its compression, and the second elastic component immediately controls the extension plate and shielding plate to move downward. The shielding plate serves to block the first air hole while exposing the second air hole. The smaller inner diameter of the second air hole significantly increases the difficulty of moving the connecting plate, thereby enhancing the stability between the placement plate and the object. The present invention ensures that the object, top plate, and placement plate remain relatively stable after the drone body takes off and its center of gravity is adjusted, greatly improving the safety and reliability of the drone when carrying a load. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them: Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the support leg of the present invention.

[0021] Figure 3 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the rotary bearing mechanism of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating frame of the present invention.

[0023] Figure 5 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the rotating frame of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the movable support mechanism of the present invention.

[0025] Figure 7 It is a schematic diagram of the partial three-dimensional structure of the contact support mechanism of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting pipe of the present invention.

[0027] Figure 9 It is a schematic diagram of the three-dimensional cross-sectional structure of the piston buffer mechanism of the present invention.

[0028] Figure 10 It is a schematic diagram of the three-dimensional structure of the movable limiting mechanism of the present invention.

[0029] Figure 11 It is a schematic diagram of the three-dimensional cross-sectional structure of the telescopic barrier assembly of the present invention.

[0030] In the figure: 1. UAV body; 2. Photovoltaic module; 3. Support leg; 4. Rotating bearing mechanism; 41. Fixed frame; 42. Rotating ball; 43. Top plate; 44. Vertical rod; 45. Placement plate; 46. Connecting hole; 5. Movable support mechanism; 51. Connecting tube; 52. Connecting plate; 53. First air hole; 54. Second air hole; 55. Shielding plate; 56. First elastic component; 57. Contact rod; 6. Ring frame; 7. Contact support mechanism; 71. Extension plate; 72. Connecting rod; 73. Guide sleeve; 74. Guide rod; 75. Limit plate; 76. Second elastic component; 8. Mounting plate; 9. Piston buffer mechanism; 91. Piston cylinder; 92. Piston plate; 93. Third elastic component; 94. Support column; 95. Contact plate; 10. Connecting pipe; 11. Mobile limiting mechanism; 111. Telescopic blocking component; 1111. Cylinder; 1112. Movable plate; 1113. Moving rod; 1114. Blocking plate; 112. Intermediate tube; 113. Fixed column; 12. Connecting pipe; 13. Extension arm; 14. Rotor assembly. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0034] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0035] Example 1 Reference Figures 1 to 11 , provides a solar express drone, including a drone body 1, four extension arms 13 are provided on the side of the drone body 1, a rotor assembly 14 is provided on the extension arm 13, a photovoltaic assembly 2 is provided on the drone body 1, two support legs 3 are installed under the drone body 1, a rotating bearing mechanism 4 is fixedly connected to the bottom of the drone body 1, a movable limiting mechanism 11 is fixedly connected to the bottom of the rotating bearing mechanism 4, a connecting pipe 12 is connected to the side of the movable limiting mechanism 11, and the connecting pipe 12 is connected to the rotating bearing mechanism 4, four movable supporting mechanisms 5 are slidably connected to the rotating support mechanism, the movable supporting mechanism 5 is fixedly connected to the bottom of the drone body 1, and the four movable supporting mechanisms 5 are fixedly connected to the same annular frame 6 on the outside, and the left and right sides of the annular frame 6 are fixedly connected to the contact supporting mechanism 7, and the contact supporting mechanism 7 is fixedly connected to the bottom of the drone body 1, and the front and rear sides of the supporting legs 3 are fixedly connected to the mounting plates 8, and a piston buffer mechanism 9 is connected through the mounting plate 8, and the side of the piston buffer mechanism 9 is connected to the connecting pipe 10, and the connecting pipe 10 is connected to the rotating bearing mechanism 4.

[0036] The rotating supporting mechanism 4 includes a fixed frame 41 fixedly connected to the drone body 1. A spherical groove is provided in the fixed frame 41. A rotating ball 42 is rotatably connected in the groove. The rotating ball 42 is hollow. A top plate 43 is fixedly connected under the rotating ball 42. The connecting tube 10 passes through the fixed frame 41 and enters the groove. The bottom end of the connecting tube 10 passes through the rotating ball 42 and the top plate 43.

[0037] Four vertical rods 44 are fixedly connected to the bottom of the top plate 43, and the bottom ends of the vertical rods 44 are fixedly connected to a placement plate 45. Four connecting holes 46 are provided on the placement plate 45. The top plate 43, the vertical rods 44 and the placement plate 45 are hollow. The hollow part of the placement plate 45 is connected to the movable limiting mechanism 11, and the movable limiting mechanism 11 is slidably arranged in the connecting holes 46.

[0038] The groove in the fixed frame 41 is used to connect and support the rotating ball 42, ensuring that the rotating ball 42 can flexibly rotate slightly in the groove, and can adjust the overall center of gravity of the object after it is placed on the placement plate 45. The top plate 43 can press the contact rod 57 as the rotating ball 42 rotates, and the placement plate 45 is used to place the object; The movable support mechanism 5 includes a connecting tube 51, which is fixedly connected to the bottom of the drone body 1. A connecting plate 52 is slidably connected inside the connecting tube 51, and a contact rod 57 is fixedly connected under the connecting plate 52. The contact rod 57 passes through and is slidably connected to the bottom of the connecting tube 51, and the contact rod 57 is slidably connected to the top plate 43.

[0039] A first air hole 53 and a second air hole 54 are provided on the side of the connecting tube 51 close to the annular frame 6. The first air hole 53 is located on the lower side of the second air hole 54. The inner diameter of the first air hole 53 is larger than the inner diameter of the second air hole 54. A first elastic component 56 is fixedly connected to the connecting plate 52. The top of the first elastic component 56 is fixedly connected to the inner wall of the connecting tube 51. A baffle plate 55 is slidably connected to the outside of the connecting tube 51. The baffle plate 55 is set to an arc shape. The baffle plate 55 blocks the second air hole 54. The baffle plate 55 is fixedly connected to the inner wall of the annular frame 6.

[0040] During the rotation of the top plate 43, the rising portion will squeeze the contact rod 57 to move upward. At the same time as the contact rod 57 moves, the gas in the connecting tube 51 is squeezed out through the first air hole 53 through the connecting plate 52. During the downward movement of the connecting plate 52 controlled by the first elastic component 56, the external air will be sucked into the connecting tube 51 through the first air hole 53; after the drone body 1 takes off, the connecting rod 72 loses its squeezing, and the second elastic component 76 controls the extension plate 71 and the shielding plate 55 to move downward. The shielding plate 55 moves downward to block the first air hole 53, and the second air hole 54 is exposed. Since the inner diameter of the second air hole 54 is very small, the movement of the connecting plate 52 is increased. The elastic force of the first elastic component 56 on the connecting plate 52 can be used to control the stabilization or reset movement process of the connecting plate 52; The contact support mechanism 7 includes an extension plate 71, which is fixedly connected to the annular frame 6. A guide sleeve 73 is connected through the extension plate 71, and a guide rod 74 is slidably connected in the guide sleeve 73. The top of the guide rod 74 is fixedly connected to the drone body 1.

[0041] The bottom end of the guide rod 74 is fixedly connected to the limiting plate 75, and the limiting plate 75 is designed to be circular. A second elastic component 76 is provided on the outer sleeve of the guide rod 74. The top end of the second elastic component 76 is fixedly connected to the guide sleeve 73, and the bottom end of the second elastic component 76 is fixedly connected to the limiting plate 75. A connecting rod 72 is fixedly connected to the bottom of the extension plate 71, and the bottom end of the connecting rod 72 is in contact with the ground.

[0042] The connecting rod 72 can be separated from the ground after the drone body 1 takes off. At this time, the second elastic component 76 can automatically control the extension plate 71 and the annular frame 6 to move downward. The guide rod 74 guides and limits the vertical movement of the guide sleeve 73, the extension plate 71 and the annular frame 6 to ensure their stable and smooth movement. The piston buffer mechanism 9 includes a piston cylinder 91 that is connected to the mounting plate 8, a piston plate 92 is slidably connected in the piston cylinder 91, a support column 94 is fixedly connected under the piston plate 92, the support column 94 passes through and is slidably connected to the bottom of the piston cylinder 91, and a contact plate 95 is fixedly connected to the bottom end of the support column 94. The piston cylinder 91 is connected to the connecting pipe 10, and the connecting pipe 10 is connected to a position in the piston cylinder 91 located at the lower side of the piston plate 92. A third elastic component 93 is fixedly connected to the piston plate 92, and the third elastic component 93 is fixedly connected to the inner wall of the piston cylinder 91.

[0043] After the contact plate 95 is separated from the ground, the contact plate 95 drives the piston plate 92 to move downward through the support column 94. When the piston plate 92 moves, the gas in the piston cylinder 91 is squeezed into the connecting pipe 10. The gas in the connecting pipe 10 enters the cylinder 1111 through the groove, rotating ball 42, top plate 43, vertical rod 44, placement plate 45 and connecting pipe 10; when the contact plate 95 moves upward, it will squeeze the third elastic component 93 to cushion the downward movement of the drone body 1.

[0044] The movable limiting mechanism 11 includes four telescopic blocking components 111 slidingly connected in the connecting hole 46, an intermediate tube 112 is connected between the telescopic blocking components 111, and the side of the telescopic blocking component 111 is fixedly connected to a fixed column 113, and the fixed column 113 is fixedly connected under the placement plate 45. The side of one of the telescopic blocking components 111 is connected to the connecting pipe 12.

[0045] The telescopic blocking assembly 111 includes a cylinder 1111 fixedly connected to a fixed column 113, a movable plate 1112 being slidably connected inside the cylinder 1111, a moving rod 1113 being fixedly connected to the movable plate 1112, the moving rod 1113 passing through and slidably connected to the cylinder 1111, a blocking plate 1114 being fixedly connected to the top end of the moving rod 1113, the blocking plate 1114 being slidably connected in the connecting hole 46, the intermediate tube 112 and the connecting tube 12 being connected to the side of the cylinder 1111 at a position below the movable plate 1112.

[0046] As the air pressure in the cylinder 1111 increases, the movable plate 1112, the moving rod 1113 and the blocking plate 1114 are controlled to move upward. The four blocking plates 1114 limit the object on the placement plate 45 to keep the object stable. After the four contact plates 95 are in stable contact with the ground, the movable plate 1112 will drive the blocking plate 1114 to move downward into the connecting hole 46. At this time, the blocking plate 1114 no longer causes an obstacle to the object.

[0047] Working principle: The object to be transferred is directly placed on the placement plate 45. The weight of the object acts on the placement plate 45. Since the rotating ball 42 can rotate in the fixed frame 41, the top plate 43 rotates to a certain extent. During the rotation of the top plate 43, the rising portion presses the contact rod 57 to move upward. As the contact rod 57 moves, the air in the connecting tube 51 is squeezed out through the first air hole 53 through the connecting plate 52. During the downward movement of the connecting plate 52 controlled by the first elastic component 56, the external air is sucked into the connecting tube 51 through the first air hole 53, so that the object remains stable after being suspended and the center of gravity remains in the middle of the drone body 1. After the drone body 1 takes off, the connecting rod 72 loses its squeezing force, and the second elastic component 76 controls the extension plate 71 and the shielding plate 55 to move downward. The shielding plate 55 moves downward to block the first air hole 53, and the second air hole 54 is exposed. Since the inner diameter of the second air hole 54 is very small, it is more difficult to move the connecting plate 52. At this time, the placing plate 45 and the object remain relatively stable. After the contact plate 95 is separated from the ground, the contact plate 95 drives the piston plate 92 to move downward through the support column 94. While the piston plate 92 moves, it squeezes the gas in the piston cylinder 91 into the connecting pipe 10. The gas in the connecting pipe 10 enters the cylinder 1111 through the groove, the rotating ball 42, the top plate 43, the vertical rod 44, the placing plate 45 and the connecting pipe 10. The air pressure in the cylinder 1111 increases while controlling the movable plate 1112, the moving rod 1113 and the blocking plate 1114 to move upward. The four blocking plates 1114 limit the object on the placing plate 45 to keep the object stable. When the drone body 1 lands, the contact plate 95 and the connecting rod 72 are squeezed. When the contact plate 95 moves upward, it squeezes the third elastic component 93 to cushion the downward movement of the drone body 1. After the four contact plates 95 are in stable contact with the ground, the movable plate 1112 will drive the blocking plate 1114 to move downward into the connecting hole 46. At this time, the blocking plate 1114 no longer hinders the object. When the connecting rod 72 moves upward, it will control the movement of the extension plate 71, the annular frame 6 and the shielding plate 55. The shielding plate 55 blocks the second air hole 54, and the first air hole 53 loses its shielding. The contact rod 57 can be squeezed and moved by the top plate 43, and then the object can be easily removed.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A solar-powered express delivery drone, characterized by: The invention comprises a drone body (1), wherein four extension arms (13) are provided on the side of the drone body (1), a rotor assembly (14) is provided on the extension arms (13), a photovoltaic assembly (2) is provided on the drone body (1), two supporting legs (3) are installed under the drone body (1), a rotating bearing mechanism (4) is fixedly connected to the drone body (1), a moving limit mechanism (11) is fixedly connected to the rotating bearing mechanism (4), a connecting pipe (12) is connected to the side of the moving limit mechanism (11), the connecting pipe (12) is connected to the rotating bearing mechanism (4), and a rotating support mechanism is slidably connected to the rotating support mechanism. Four movable support mechanisms (5), the movable support mechanisms (5) are fixedly connected to the drone body (1), the four movable support mechanisms (5) are fixedly connected to the same annular frame (6) on the outside, the left and right sides of the annular frame (6) are fixedly connected to contact support mechanisms (7), the contact support mechanisms (7) are fixedly connected to the drone body (1), the front and rear sides of the support legs (3) are fixedly connected to mounting plates (8), the mounting plates (8) are connected through a piston buffer mechanism (9), the side of the piston buffer mechanism (9) is connected to a connecting pipe (10), and the connecting pipe (10) is connected to the rotating bearing mechanism (4).

2. The solar-powered delivery drone according to claim 1, characterized in that: The rotating bearing mechanism (4) includes a fixed frame (41) fixedly connected to the lower portion of the drone body (1); a spherical groove is provided in the fixed frame (41); a rotating ball (42) is rotatably connected in the groove; the rotating ball (42) is hollow; a top plate (43) is fixedly connected below the rotating ball (42); the connecting tube (10) passes through the fixed frame (41) and enters the groove; and the bottom end of the connecting tube (10) passes through the rotating ball (42) and enters the top plate (43).

3. The solar-powered delivery drone according to claim 2, characterized in that: Four vertical rods (44) are fixedly connected to the bottom of the top plate (43), and a placement plate (45) is fixedly connected to the bottom end of the vertical rod (44). Four connecting holes (46) are opened on the placement plate (45). The top plate (43), the vertical rods (44) and the placement plate (45) are hollow. The hollow part of the placement plate (45) is connected to the movable limiting mechanism (11), and the movable limiting mechanism (11) is slidably arranged in the connecting hole (46).

4. The solar-powered delivery drone according to claim 3, characterized in that: The movable support mechanism (5) includes a connecting tube (51), the connecting tube (51) is fixedly connected to the bottom of the drone body (1), a connecting plate (52) is slidably connected inside the connecting tube (51), a contact rod (57) is fixedly connected under the connecting plate (52), the contact rod (57) passes through and is slidably connected to the bottom of the connecting tube (51), and the contact rod (57) is slidably connected to the top plate (43).

5. The solar-powered delivery drone according to claim 4, characterized in that: A first air hole (53) and a second air hole (54) are provided on a side of the connecting tube (51) close to the annular frame (6). The first air hole (53) is located below the second air hole (54). The inner diameter of the first air hole (53) is larger than the inner diameter of the second air hole (54). A first elastic component (56) is fixedly connected to the connecting plate (52). The top end of the first elastic component (56) is fixedly connected to the inner wall of the connecting tube (51). A shielding plate (55) is slidably connected to the outside of the connecting tube (51). The shielding plate (55) is set to be arc-shaped. The shielding plate (55) shields the second air hole (54). The shielding plate (55) is fixedly connected to the inner wall of the annular frame (6).

6. The solar-powered express delivery drone according to claim 5, characterized in that: The contact support mechanism (7) comprises an extension plate (71), the extension plate (71) is fixedly connected to the annular frame (6), a guide sleeve (73) is connected through the extension plate (71), a guide rod (74) is slidably connected in the guide sleeve (73), and the top end of the guide rod (74) is fixedly connected to the drone body (1).

7. The solar-powered delivery drone according to claim 6, characterized in that: The bottom end of the guide rod (74) is fixedly connected to a limiting plate (75), and the limiting plate (75) is set to be circular. The outer sleeve of the guide rod (74) is provided with a second elastic component (76), the top end of the second elastic component (76) is fixedly connected to the guide sleeve (73), and the bottom end of the second elastic component (76) is fixedly connected to the limiting plate (75). A connecting rod (72) is fixedly connected to the bottom of the extension plate (71), and the bottom end of the connecting rod (72) is in contact with the ground.

8. The solar-powered delivery drone according to claim 1, characterized in that: The piston buffer mechanism (9) includes a piston cylinder (91) connected to the mounting plate (8), a piston plate (92) is slidably connected in the piston cylinder (91), a support column (94) is fixedly connected under the piston plate (92), the support column (94) passes through and is slidably connected under the piston cylinder (91), and a contact plate (95) is fixedly connected to the bottom end of the support column (94), the piston cylinder (91) is communicated with the connecting pipe (10), and the connecting pipe (10) is communicated with a position in the piston cylinder (91) located below the piston plate (92), a third elastic component (93) is fixedly connected to the piston plate (92), and the third elastic component (93) is fixedly connected to the inner wall of the piston cylinder (91).

9. The solar-powered express delivery drone according to claim 3, characterized in that: The movable limiting mechanism (11) comprises four telescopic blocking components (111) slidably connected in the connecting hole (46), an intermediate tube (112) is connected between the telescopic blocking components (111), a fixed column (113) is fixedly connected to the side of the telescopic blocking component (111), and the fixed column (113) is fixedly connected under the placement plate (45), and a side of one of the telescopic blocking components (111) is connected to the connecting tube (12).

10. The solar-powered express delivery drone according to claim 9, characterized in that: The telescopic blocking assembly (111) comprises a cylinder (1111) fixedly connected to a fixed column (113), a movable plate (1112) being slidably connected inside the cylinder (1111), a moving rod (1113) being fixedly connected to the movable plate (1112), the moving rod (1113) passing through and slidably connected to the cylinder (1111), a blocking plate (1114) being fixedly connected to the top end of the moving rod (1113), the blocking plate (1114) being slidably connected in the connecting hole (46), and the intermediate tube (112) and the connecting tube (12) being connected to a side surface of the cylinder (1111) located below the movable plate (1112).

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