Automatic folding and unfolding device for unmanned aerial vehicle

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle automatic folding and unfolding device which comprises a folding and unfolding box body and a parking platform arranged in the folding and unfolding box body and used for placing an unmanned aerial vehicle and further comprises a self-balancing mechanism rotationally connected to the inner wall of the folding and unfolding box body and a buffering mechanism fixedly connected to the bottom face of the parking platform. And the end part of the buffer mechanism is connected with the self-balancing mechanism in a sliding manner. Protective plates are rotationally connected to the upper ends of the four side walls of the retractable box body, and folding wing retracting assemblies are arranged on any group of symmetric protective plates; a traction winding assembly is arranged at the bottom of the winding and unwinding box body, and the end of the traction winding assembly is connected with the protection plate and the self-balancing mechanism. Through the arrangement of the self-balancing mechanism in the folding and unfolding box body, the technical effect of self-balancing adjustment of any position of the parking platform can be achieved, and the technical problem that in the prior art, an unmanned aerial vehicle takes off or stops and descends unstably in an uneven terrain area is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to an automatic retracting and deploying device for a UAV. Background Art

[0002] In recent years, the application areas of drones have continued to expand, from their initial military reconnaissance role to encompass a wide range of civilian applications. In logistics and distribution, drones fulfill the "last mile" of delivery, requiring frequent takeoffs and landings to complete cargo deliveries. In surveying and inspection, drones must conduct long, high-frequency surveys of large areas, such as power line and oil pipeline inspections. After each mission, drones must be quickly and safely recovered to allow for the next operation. Traditional manual or assisted retraction methods are unable to meet the demands of such high-intensity, high-frequency operations.

[0003] Drones often need to perform missions in complex environments, such as mountainous areas, waterways, and between urban skyscrapers. Mountainous terrain is often rugged, creating a lack of suitable flat surfaces for drone takeoff and landing. In watery areas, such as offshore oil platform inspections and river monitoring, the unstable water surface makes manual deployment and retraction difficult and risky.

[0004] After searching, the patent with authorization announcement number CN 205770202 U discloses a tethered drone automatic retractable box, including a power supply, a retractable box, a servo mechanism, a background industrial control computer and a measurement and control communication mechanism; the retractable box includes a box body and a box cover, the servo mechanism includes a screw elevator, a drone bracket and a cable reel device, the screw elevator is driven by a screw servo motor, and the top of the screw elevator is fixedly connected to the drone bracket, and the drone bracket is used to support the drone; the cable reel device includes a reel servo motor, a cable reel and a cable, the movable end of the cable wound on the cable reel is electrically connected to the drone, and the fixed end of the cable is electrically connected to the power supply; this application adopts a combination of a retractable box and a power supply, which can place the retractable box and the power supply in the designated task execution area in advance, and use the wireless communication of the background industrial control computer to control the drone to work for a long time in the designated area, solving the problem that traditional drones cannot perform tasks for a long time.

[0005] Although the automatic drone retractable box in the above-mentioned prior art can realize the function of timed charging, it is not suitable for environmental areas with uneven terrain, and there is a problem that the drone is restricted from taking off and retracting in such an environment. Summary of the Invention

[0006] The above-mentioned automatic retractable drone box in the prior art cannot adapt to environmental areas with uneven terrain, and there is a technical problem that the take-off and retraction of the drone are restricted in such an environment.

[0007] Technical idea: Based on the problems of the existing technology, this application provides an automatic retraction and deployment device for drones. By rotating the self-balancing mechanism connected to the retraction box, it automatically finds the balance interface based on the principle that its own center of gravity is always downward, thereby driving the drone parking platform to always maintain a horizontal state, thereby achieving the technical effect of stable takeoff and landing of the drone.

[0008] In order to realize the above technical ideas, the technical solution adopted by the present invention is: The present application provides an automatic retractable drone device, comprising a retractable box and a parking platform arranged in the retractable box for placing the drone, and further comprising a self-balancing mechanism rotatably connected to the inner wall of the retractable box, and a buffer mechanism fixedly connected to the bottom surface of the parking platform; the end of the buffer mechanism is slidably connected to the self-balancing mechanism.

[0009] In detail, the storage box is a hollow rectangular parallelepiped structure with an upper opening, and the parking platform is a circular platform structure.

[0010] Furthermore, the upper ends of the four side walls of the storage box are rotatably connected to guard plates, and a folding wing assembly is provided on each symmetrical group of guard plates; and a pulling and winding assembly is provided at the bottom of the storage box, and the ends of the pulling and winding assembly are respectively connected to the guard plates and the self-balancing mechanism.

[0011] Specifically, the guard plate is a rectangular parallelepiped structure.

[0012] In the above technical solution, the self-balancing mechanism includes: an outer axis frame rotatably connected to the inner walls on both sides of the storage box, and an inner axis frame rotatably connected to the outer axis frame; the end of the inner axis frame is rotatably connected to the balancer.

[0013] It should be noted that both the outer shaft frame and the inner shaft frame are "U"-shaped structures, and the length and height of the inner shaft frame are smaller than those of the outer shaft frame.

[0014] Furthermore, magnetic fluid is provided at the connection points between the outer shaft frame and the retractable box, and between the inner shaft frame and the balancer.

[0015] Furthermore, the balancer includes: a balancing ball that is hemispherical and has a cavity therein, and four hollow support rods fixedly connected to the balancing ball.

[0016] In detail, the support rod is in an "L" shape.

[0017] In the above technical solution, the buffer mechanism includes: a liquid pump fixedly arranged on the upper end surface of the balancing ball, and a liquid extraction tube connected to the lower end of the liquid pump and extending into the cavity of the balancing ball; four infusion tubes are connected to the upper end of the liquid pump, and the infusion tubes are connected to the support rods one by one; a piston rod is slidably connected in each of the support rods, one end of the piston rod is fixedly connected to the parking platform, and the other end is provided with a plurality of infusion holes; an elastic member is sleeved on the piston rod, one end of the elastic member is fixed on the piston rod, and the other end abuts against the support rod.

[0018] More specifically, the piston rod is in an I-shaped structure, and the elastic member is a spring.

[0019] Furthermore, the folding wing assembly includes: an electric telescopic rod fixedly connected to the guard plate and a U-shaped push rod slidably connected to the guard plate, and the head end of the electric telescopic rod is fixedly connected to the U-shaped push rod.

[0020] Furthermore, the pulling and winding assembly includes: a motor fixedly arranged at the bottom of the storage box, the output end of the motor is connected to the winding shaft, and two sets of pulling ropes are fixedly connected to the winding shaft; the ends of one set of pulling ropes are respectively connected to the guard plate, and the ends of the other set of pulling ropes are connected to the inner shaft frame.

[0021] Preferably, a magnetic charging block is provided on the upper end surface of the parking platform.

[0022] More specifically, a cover plate is rotatably connected to any of the guard plates, and the cover plate cooperates with the retractable box.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention utilizes an outer shaft frame rotatably connected to the inner wall of the storage box and an inner shaft frame rotatably connected to the outer shaft frame, so that the balancing ball rotatably connected to the inner shaft frame automatically finds a balancing interface based on the principle that its own center of gravity is always downward, thereby driving the drone parking platform to always maintain a horizontal state, thereby achieving the technical effect of stable takeoff and landing of the drone.

[0024] 2. The present invention uses magnetic fluid arranged at the connection between the outer shaft frame and the retractable box, and the inner shaft frame and the balancing ball to fix the parking platform after it is rotated to any balance angle, thereby ensuring the stability of the drone parking platform and avoiding the technical problem of the parking platform shaking during the drone's takeoff or landing.

[0025] 3. The present invention utilizes a liquid pump to transport the liquid in the balancing ball through a liquid extraction tube and an infusion tube to the inner cavity of the support rod. When the UAV takes off or lands on the parking platform, the piston rod moves downward along the support rod, causing a small amount of liquid in the support rod to leak out through the infusion hole opened on the piston rod, and the spring sleeved on the piston rod has the technical effect of buffering and shock absorbing the parking platform.

[0026] 4. The present invention starts the motor to drive the reel to rotate, so that the pulling rope is wound on the reel. By continuously tightening the pulling rope, the guard plate is driven to stand up and the inner shaft frame is reset, so that the drone can be stored in the storage box for easy storage, thereby preventing the drone from being damaged.

[0027] 5. The present invention drives the U-shaped push rod to slide on the guard plate by contracting the electric telescopic rod provided on the guard plate, thereby realizing that when the UAV is landed on the parking platform, the U-shaped push rod pushes the wings on both sides of the UAV to fold. On the one hand, it is convenient to store the entire UAV into the storage box, and on the other hand, it can avoid the problem of damage to the wings due to collision.

[0028] 6. The present invention achieves the technical effect of stable parking of the drone and timely replenishment of power by setting a magnetic charging block on the parking platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a three-dimensional diagram of the retractable box in the closed state of the present invention; Figure 2 For the present invention Figure 1 The main view; Figure 3 For the present invention Figure 2 Cross-sectional view in the AA direction; Figure 4 For the present invention Figure 3 Enlarged view of part A in the middle; Figure 5 This is a three-dimensional diagram of the retractable box of the present invention in an unfolded state; Figure 6 It is a three-dimensional diagram of part of the structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of middle part B; Figure 8 It is a three-dimensional diagram of the self-balancing mechanism structure of the present invention; Figure 9 For the present invention Figure 8 A top view of Figure 10 For the present invention Figure 9 Cross-sectional view in the middle BB direction; Figure 11This is a schematic diagram of the connection between the outer shaft frame and the inner shaft frame of the present invention; Figure 12 This is a structural stereogram of the outer shaft frame of the present invention; Figure 13 This is a schematic diagram of the structure of the motor and the winding shaft of the present invention; Figure 14 A diagram showing the positional relationship between the drone and the parking platform of the present invention; Figure 15 This is a structural perspective diagram of the parking platform of the present invention; In the figure: 1. Retractable box; 2. Parking platform; 3. Self-balancing mechanism; 31. Outer shaft frame; 32. Inner shaft frame; 33. Balancing ball; 34. Support rod; 4. Buffer mechanism; 41. Liquid pump; 42. Liquid extraction tube; 43. Liquid infusion tube; 44. Piston rod; 45. Spring; 5. Guard plate; 6. Folding wing assembly; 61. Electric telescopic rod; 62. U-shaped push rod; 7. Pulling and retracting assembly; 71. Motor; 72. Reel; 73. Pulling rope; 8. Magnetic charging block; 9. Cover plate; 10. UAV. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "front end", "back end", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply the devices or elements referred to. It is not to be construed as limiting the present invention by requiring it to have a specific orientation, be constructed and operate in a specific orientation.

[0033] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0034] The inventors discovered in actual operations that drones need to perform tasks in different environments. Due to the different terrain conditions, it will cause difficulties for drones to take off and land. The existing automatic drone retraction and deployment boxes cannot adapt to environmental areas with uneven terrain, and there is a problem that the drone's takeoff and deployment are restricted in such environments.

[0035] Based on the above findings, the present application provides an automatic retractable drone device, comprising a retractable box 1 and a parking platform 2 arranged in the retractable box 1 for placing the drone, and also comprising a self-balancing mechanism 3 rotatably connected to the inner wall of the retractable box 1, and a buffer mechanism 4 fixedly connected to the bottom surface of the parking platform 2; the end of the buffer mechanism 4 is slidably connected to the self-balancing mechanism 3.

[0036] Example 1 Reference Figure 1-15 As shown, the present application provides an automatic retractable drone device, comprising a retractable box 1 and a parking platform 2 arranged in the retractable box 1 for placing a drone 10.

[0037] Preferably, a magnetic charging block 8 is provided on the upper end surface of the parking platform 2, and the magnetic charging block 8 can realize the function of automatic charging, thereby achieving the technical effect of timely replenishing the power of the drone 10.

[0038] It should be noted that the magnetic charging block 8 achieves fixed docking between the drone 10 and the magnetic charging block 8 by attracting the magnet set inside with the magnet at the bottom of the drone 10, and further utilizes Faraday's law of electromagnetic induction to realize charging of the drone 10.

[0039] The technical solution further provides an automatic retractable drone device, further comprising a self-balancing mechanism 3 rotatably connected to the inner wall of the retractable box 1, and a buffer mechanism 4 fixedly connected to the bottom surface of the parking platform 2; the end of the buffer mechanism 4 is slidably connected to the self-balancing mechanism 3.

[0040] Specifically, the self-balancing mechanism 3 includes an outer frame 31 rotatably connected to the inner walls of the storage box 1, and an inner frame 32 rotatably connected to the outer frame 31. A balancer is rotatably connected to the end of the inner frame 32. The balancer utilizes its own gravity to coordinate the rotation of the outer frame 31 and the inner frame 32, allowing the balancer to automatically rotate and maintain a balanced state.

[0041] As an example, the retractable box 1 and the outer shaft frame 31 , the outer shaft frame 31 and the inner shaft frame 32 , and the inner shaft frame 32 and the balancer are rotatably connected via rotating shafts.

[0042] When the balancer rotates to the balanced position, in order to maintain the stability of the balancer and prevent the balancer from shaking at the moment of takeoff or landing of the drone 10, magnetic fluid is provided at the connection between the outer shaft frame 31 and the retractable box 1, and the inner shaft frame 32 and the balancer, and is sealed and fixed by the magnetic fluid.

[0043] Specifically, notches are provided on the outer shaft frame 31 and the retractable box 1 as well as on the inner shaft frame 32 and the rotating shaft of the balancer, and the magnetic fluid is then placed in the notches.

[0044] It should be noted that magnetic fluid, also known as magnetic liquid, ferrofluid, or magnetic fluid, possesses both the fluidity of a liquid and the magnetism of a solid magnetic material. It is a stable colloidal liquid composed of a mixture of magnetic solid particles with a diameter of nanometers (less than 10 nanometers), a carrier fluid (also called a medium), and a surfactant. This fluid has no magnetic attraction when static, but exhibits magnetism when subjected to an external magnetic field.

[0045] As an example, a battery can be set on the side wall of the storage box 1. For example, a No. 7 battery (AAA type) can be used, which is available on the market. The battery is electrically connected to the outer shaft frame 31 and the storage box 1, and the inner shaft frame 32 and the magnetic fluid in the rotating shaft of the balancer. The battery and the magnetic fluid are further powered on and off through the intelligent charging manager. When powered on, the magnetic fluid solidifies, thereby keeping the balancer in a stable state. When powered off, the magnetic fluid liquefies, allowing the balancer to rotate according to its own gravity.

[0046] Furthermore, the balancer includes: a hemispherical balancing ball 33 with a cavity therein, and four hollow support rods 34 fixedly connected to the balancing ball 33 .

[0047] It should be noted that the cavity of the balancing ball 33 is filled with liquid.

[0048] Furthermore, the buffer mechanism 4 includes: a liquid pump 41 fixedly arranged on the upper end surface of the balancing ball 33, and a liquid extraction tube 42 connected to the lower end of the liquid pump 41 and extending into the cavity of the balancing ball 33; four infusion tubes 43 are connected to the upper end of the liquid pump 41, and the infusion tubes 43 are connected to the support rods 34 one by one; a piston rod 44 is slidably connected in each of the support rods 34, one end of the piston rod 44 is fixedly connected to the parking platform 2, and the other end is provided with a plurality of infusion holes; an elastic member is sleeved on the piston rod 44, one end of the elastic member is fixed on the piston rod 44, and the other end abuts against the support rod 34.

[0049] As an example, the liquid pump 41 can adopt an ISG type pipeline centrifugal pump, and the liquid in the balance ball 33 is sucked into the cavity of the support rod 34 through the liquid pump 41. When the drone 10 lands on the parking platform 2, it will drive the piston rod 44 to move downward along the support rod 34, thereby causing the liquid in the support rod 34 to be discharged in small amounts through the infusion hole. The liquid in the support rod 34 plays a buffering and shock-absorbing role on the parking platform 2.

[0050] In detail, the elastic member sleeved on the piston rod 44 is a spring 45. At the same time, the spring 45 is compressed during the landing process of the drone 10. The elastic force of the spring 45 and the liquid in the support rod 34 play a dual buffering and shock-absorbing role on the parking platform 2.

[0051] Example 2 On the basis of Example 1, in order to realize the automatic retraction and deployment of the drone 10, guard plates 5 are rotatably connected to the upper ends of the four side walls of the retractable box 1, and a folding wing assembly 6 is provided on each of any symmetrical groups of guard plates 5; and a pulling and winding assembly 7 is provided at the bottom of the retractable box 1, and the ends of the pulling and winding assembly 7 are respectively connected to the guard plates 5 and the self-balancing mechanism 3.

[0052] As an example, the storage box 1 and the guard plate 5 are rotatably connected via a rotating shaft or a hinge.

[0053] Furthermore, any of the guard plates 5 is rotatably connected to a cover plate 9, which cooperates with the storage box 1. The top of the storage box 1 can be sealed by the arrangement of the cover plate 9, and the guard plate 5 and the cover plate 9 can be rotatably connected by a hinge.

[0054] Furthermore, the folding wing assembly 6 includes: an electric telescopic rod 61 fixedly connected to the guard plate 5 and a U-shaped push rod 62 slidably connected to the guard plate 5, and the head end of the electric telescopic rod 61 is fixedly connected to the U-shaped push rod 62.

[0055] As an example, the electric telescopic rod 61 can be a Hoodland electric push rod telescopic rod, which is commercially available. The extension and retraction of the electric telescopic rod 61 drives the U-shaped push rod 62 to slide on the guard plate 5 to push and fold the wings of the drone 10, thereby avoiding the problem of damage to the wings of the drone 10 due to collision.

[0056] Furthermore, the pulling and winding assembly 7 includes: a motor 71 fixedly arranged at the bottom of the storage box 1, the output end of the motor 71 is connected to the winding shaft 72, and two groups of pulling ropes 73 are fixedly connected to the winding shaft 72; the ends of one group of pulling ropes 73 are respectively connected to the guard plate 5, and the ends of the other group of pulling ropes 73 are connected to the inner shaft frame 32.

[0057] Preferably, a protective shell is provided outside the motor 71 .

[0058] As an example, the motor 71 may be a Y2 series motor, and the motor 71 may be powered by a battery disposed in a protective housing, and the forward and reverse rotation of the motor 71 may be controlled by a PLC.

[0059] It should be noted that the winding shaft 72 has a "stem"-shaped structure, and the upper end is connected to the inner shaft frame 32 through the pulling rope 73. Specifically, the pulling rope 73 on the winding shaft 72 passes through the rear end of the rotating shaft between the inner shaft frame 32 and the outer shaft frame 31 and is connected to the end of the inner shaft frame 32.

[0060] There are four pulling ropes 73 located in the middle of the reel 72 , which pass through the through holes provided on the protective shell respectively and then enter the circular slide provided on the side wall of the storage box 1 . The end of each pulling rope 73 is connected to the guard plate 5 .

[0061] The motor 71 rotates forward to drive the reel 72 to rotate, so that the pulling rope 73 is wound around the reel 72, thereby driving the inner shaft frame 32 to reset and the guard plate 5 to stand up, thereby forming a storage protection for the drone 10.

[0062] Specific application cases The specific application of the automatic retracting and deploying device for a drone in emergency rescue will now be described in detail in conjunction with Example 1 and Example 2.

[0063] Drones play a vital role in emergency rescue efforts. They can quickly and comprehensively gather disaster information, providing strong technical support for rescue efforts. For example, drones can fly at low altitudes for close-up reconnaissance, collecting 3D data models of disaster areas. This helps rescue headquarters assess the severity of the disaster, measure the affected area, and deploy rescue forces. Drones can also play a vital role in debris modeling, indoor reconnaissance, and infrared thermal imaging search and rescue, improving search and rescue efficiency and safety.

[0064] Drones offer significant advantages in complex search and rescue environments. They can replace human personnel in conducting reconnaissance in dangerous or hard-to-reach areas, quickly locating trapped individuals and identifying search and rescue routes. For example, small drones can be equipped with searchlights and infrared thermal imagers to conduct beyond-visual-range reconnaissance in dimly lit environments, assisting in the development of rescue plans. Furthermore, drones can communicate with trapped individuals via loudspeakers, obtaining precise location information and guiding ground rescue teams to carry out rescue operations.

[0065] After each mission, the drone needs to be recovered quickly and safely so that the next operation can be carried out in time. Due to the uneven terrain during the emergency rescue process, it will cause difficulties for the drone to land, recover and take off. Based on the problem found in the above application, the present application provides an automatic retractable drone device. During the specific operation process: the retractable box 1 and the drone 10 parked on the parking platform 2 are placed on the ground as a whole, and the cover 9 is manually opened.

[0066] The motor 71 is further started to reverse, so that the pulling rope 73 wound on the winding shaft 72 is released, and the guard plate 5 and the inner shaft frame 32 are no longer restricted by the pulling rope 73. Therefore, the guard plate 5 rotates and folds outward on the side wall of the storage box 1.

[0067] Furthermore, under the action of its own weight, the balancing ball 33 utilizes its own gravity to cooperate with the rotation of the outer shaft frame 31 and the inner shaft frame 32, so that the balancing ball 33 can automatically rotate and always be in a balanced state.

[0068] The balancing ball 33 drives the parking platform 2 and the drone 10 on the parking platform 2 to be in a balanced state. The intelligent charging manager further realizes the electrification of the magnetic fluid, thereby making the magnetic fluid in a solidified state. The liquid in the balancing ball 33 is sucked into the cavity of the support rod 34 by the liquid pump 41. When the drone 10 takes off on the parking platform 2, it will drive the piston rod 44 to move downward along the support rod 34, thereby causing a small amount of liquid in the support rod 34 to be discharged through the infusion hole. The liquid in the support rod 34 plays a buffering and shock-absorbing role for the parking platform 2.

[0069] After the drone 10 takes off, the spring 45 returns to its original state and the piston rod 44 returns to its initial position. When the drone mission is completed, it lands on the parking platform 2 and the drone 10 is charged with electricity through the magnetic charging block 8 on the parking platform 2.

[0070] At the moment the drone 10 stops, the piston rod 44 moves downward along the support rod 34, causing a small amount of liquid in the support rod 34 to be discharged through the infusion hole. The liquid in the support rod 34 acts as a buffer and shock absorber for the parking platform 2, and the spring 45 is compressed, and the spring 45 and the liquid in the support rod 34 act as a double buffer and shock absorber for the parking platform 2.

[0071] After the drone 10 is parked, the electric telescopic rod 61 is extended and retracted to drive the U-shaped push rod 62 to slide on the guard plate 5 to push and fold the wings of the drone 10, thereby avoiding the problem of damage to the wings of the drone 10 caused by collision.

[0072] The motor 71 further rotates forward to drive the reel 72 to rotate, so that the pulling rope 73 is wound around the reel 72, thereby driving the inner shaft frame 32 to reset and the guard plate 5 to stand up, thereby forming a storage protection for the drone 10.

[0073] After the drone 10 is recovered, the cover plate 9 is placed on the guard plate 5 to achieve storage of the drone 10 in the storage box 1 .

[0074] It should be noted that those skilled in the art may make various modifications and improvements without departing from the structure of the present invention, and these modifications and improvements should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application shall be based on the content of the claims, and the specific embodiments and other descriptions in the specification may be used to interpret the content of the claims.

Claims

1. An automatic retractable drone device, comprising a retractable housing (1) and a parking platform (2) disposed in the retractable housing (1) for placing a drone (10), characterized in that: It also includes a self-balancing mechanism (3) rotatably connected to the inner wall of the storage box (1), and a buffer mechanism (4) fixedly connected to the bottom surface of the parking platform (2); The end of the buffer mechanism (4) is slidably connected to the self-balancing mechanism (3).

2. The automatic retractable drone device according to claim 1, characterized in that: The upper ends of the four side walls of the storage box (1) are all rotatably connected to guard plates (5), and each of any symmetrical sets of guard plates (5) is provided with a folding wing assembly (6); A pulling and winding assembly (7) is provided at the bottom of the retractable box (1), and ends of the pulling and winding assembly (7) are respectively connected to the guard plate (5) and the self-balancing mechanism (3).

3. The automatic retractable drone device according to claim 1, characterized in that: The self-balancing mechanism (3) comprises: An outer shaft frame (31) rotatably connected to the inner walls of both sides of the storage box (1), and an inner shaft frame (32) rotatably connected to the outer shaft frame (31); The end of the inner shaft frame (32) is rotatably connected to a balancer.

4. The automatic retractable drone device according to claim 3, characterized in that: Magnetic fluid is provided at the connection points between the outer shaft frame (31) and the retractable box (1), and the inner shaft frame (32) and the balancer.

5. The automatic retractable drone device according to claim 4, characterized in that: The balancer comprises: a hemispherical balancing ball (33) provided with a cavity therein, and four hollow support rods (34) fixedly connected to the balancing ball (33).

6. The automatic retractable drone device according to claim 5, characterized in that: The buffer mechanism (4) comprises: a liquid pump (41) fixedly disposed on the upper end surface of the balancing ball (33), and a liquid extraction tube (42) connected to the lower end of the liquid pump (41) and extending into the cavity of the balancing ball (33); Four infusion tubes (43) are connected to the upper end of the liquid pump (41), and the infusion tubes (43) are connected to the support rods (34) in a one-to-one correspondence; A piston rod (44) is slidably connected to each of the support rods (34), one end of the piston rod (44) is fixedly connected to the parking platform (2), and the other end is provided with a plurality of infusion holes; An elastic member is sleeved on the piston rod (44), one end of the elastic member is fixed to the piston rod (44), and the other end is in contact with the support rod (34).

7. The automatic retractable drone device according to claim 2, characterized in that: The folding wing assembly (6) comprises: An electric telescopic rod (61) is fixedly connected to the guard plate (5) and a U-shaped push rod (62) is slidably connected to the guard plate (5), and the head end of the electric telescopic rod (61) is fixedly connected to the U-shaped push rod (62).

8. The automatic retractable drone device according to claim 2 or 7, characterized in that: The pulling and winding assembly (7) comprises: A motor (71) is fixedly arranged at the bottom of the storage box (1), the output end of the motor (71) is connected to a reel (72), and two sets of pulling ropes (73) are fixedly connected to the reel (72); The ends of one group of pulling ropes (73) are respectively connected to the guard plates (5), and the ends of another group of pulling ropes (73) are connected to the inner shaft frame (32).

9. The automatic retractable drone device according to claim 8, characterized in that: A magnetic charging block (8) is provided on the upper end surface of the parking platform (2).

10. The automatic retractable drone device according to claim 9, characterized in that: A cover plate (9) is rotatably connected to any of the guard plates (5), and the cover plate (9) cooperates with the storage box (1).

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