High-stability protection mechanism for rotor wing of unmanned aerial vehicle

Abstract

The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle rotor wing high-stability protection mechanism which comprises an unmanned aerial vehicle body, four wings are symmetrically and fixedly connected to the outer wall of the unmanned aerial vehicle body, rotor wing motors are fixedly connected to the upper surfaces of the four wings, one output shaft of each rotor wing motor is fixedly connected with a rotor wing body, and the other output shaft of each rotor wing motor is fixedly connected with a rotor wing shaft. The multi-protection assembly is used for protecting the rotor wing body in multiple directions and can automatically start a protection function at the same time; the absorption anti-collision assembly is used for improving the anti-collision effect on the rotor wing body and meanwhile absorbing external force to improve the stabilizing effect of the rotor wing body; when the rotor wing body detects an obstacle through the ultrasonic sensor during high-speed flight, the miniature air bags are synchronously controlled to be rapidly inflated, so that the miniature air bags can be unfolded, the miniature air bags have good elasticity after being inflated, and energy generated by collision can be effectively absorbed; the miniature air bags can relieve impact force through deformation, and direct impact on the rotor wing body is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a high-stability protection mechanism for a rotor of an unmanned aerial vehicle. Background Art

[0002] With the continuous development of UAV technology, its application in various fields is becoming more and more extensive. Whether in military reconnaissance, aerial photography and mapping, logistics distribution or environmental monitoring, UAVs play an important role. However, the rotor body of a UAV is usually one of its key components, responsible for generating lift to enable the UAV to fly in the air. If the rotor body is hit, it will cause problems such as blade damage and motor failure, seriously affecting the flight performance and safety of the UAV. In some cases, it may even cause the UAV to crash, causing significant economic losses and safety hazards. Therefore, in order to improve the safety and reliability of UAVs, it is necessary to provide effective protection measures for its rotor body.

[0003] Existing UAV rotor protection devices can usually only provide protection in a single direction and cannot provide multi-directional protection for the rotor body. When the UAV encounters obstacles from different directions, it can only protect the sides or bottom of the rotor body, but cannot effectively protect against collisions from above or other angles. When the UAV encounters obstacles from different directions, the rotor body is still susceptible to damage, and most of the protection devices in the prior art require manual intervention to start, and cannot automatically detect obstacles and activate the protection function in time during the flight of the UAV. This may result in the protection device failing to function in time in an emergency. When the UAV suddenly encounters an obstacle, if the operator cannot react in time and activate the protection device, the rotor body is likely to suffer a serious collision. Therefore, it is necessary to provide a high-stability protection mechanism for UAV rotors to solve the above problems. Summary of the invention

[0004] The main purpose of the present invention is to provide a high-stability protection mechanism for a UAV rotor, which can effectively solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a high-stability protection mechanism for a UAV rotor, comprising an UAV body, the outer wall of which is symmetrically fixedly connected with four wings, the upper surfaces of the four wings are fixedly connected with a rotor motor, one of the output shafts of the rotor motor is fixedly connected with the rotor body, and also includes: Multiple protection components, used to protect the rotor from all directions and can automatically activate the protection function; The anti-collision absorption component is used to increase the anti-collision effect of the rotor body while absorbing external forces to improve the stability of the rotor body.

[0006] As a further improvement of the above scheme, the multiple protection assembly includes a mounting base for installation at the bottom of the wing, the outer wall of the mounting base is fixedly connected with a fixing cylinder, the fixing cylinder abuts against the bottom of the wing, the bottom end of the other output shaft of the rotor motor is fixedly connected with a limiting rod, the interior of the fixed cylinder is rotatably connected with a rotating rod and a reciprocating screw rod, the interior of the rotating rod is provided with a limiting groove, the bottom end of the limiting rod is inserted into the interior of the limiting groove, the outer wall of the reciprocating screw rod is slidably connected with a movable plate, the movable plate is slidably connected to the outer wall of the rotating rod, the interior of the movable plate is provided with a movable groove, the interior of the movable groove is slidably connected with a T-shaped plate, the side of the T-shaped plate close to the movable groove is fixedly connected with a compression spring 1, the end of the T-shaped plate away from the compression spring 1 is fixedly connected with a fixing rod, and the top of the fixed rod is fixedly connected with a protective plate 1.

[0007] As a further improvement of the above scheme, the multiple protection assembly also includes a support plate fixedly connected to the bottom of the fixed cylinder, the upper surface of the support plate is slidably connected to a moving rod, the outer wall of the moving rod is fixedly connected to a T-shaped rod, a T-shaped slide groove is provided inside the fixed rod, the end of the T-shaped rod away from the moving rod is slidably connected to the inside of the T-shaped slide groove, the top of the protective plate is fixedly connected to a rotating bracket, the inside of the rotating bracket is rotatably connected to a connecting frame, the outer wall of the connecting frame is fixedly connected to a protective top frame, a pull rod is rotatably connected between the moving rod and the connecting frame, the outer wall of the connecting frame is fixedly connected to a baffle, and the pull rod slides inside the baffle.

[0008] As a further improvement of the above scheme, the multiple protection assembly also includes a fixed gear fixedly connected to the outer wall of the rotating rod, the inner wall of the fixed cylinder is fixedly connected to a micro electric pneumatic rod, the telescopic shaft of the micro electric pneumatic rod is fixedly connected to a connecting plate, the upper surface of the connecting plate is rotatably connected to a moving gear, the moving gear and the connecting plate are both slidably connected to the outer wall of the reciprocating screw, and the moving gear and the fixed gear are meshed with each other.

[0009] As a further improvement of the above scheme, the absorbing and anti-collision component includes a fixed frame symmetrically fixedly connected to the outer wall of the movable plate, the end of the fixed frame away from the movable plate is fixedly connected to the protective plate 2, the outer walls of the protective plate 2 and the protective plate 1 are fixedly connected to micro airbags, the interiors of the protective plate 1 and the protective plate 2 are provided with movable grooves, the interiors of the movable grooves are symmetrically and slidingly connected with buffer rods, the outer walls of the buffer rods are symmetrically and fixedly connected with retaining rings, the outer walls of the buffer rods are sleeved with compression spring 2, and the outer walls of the protective plate 1 and the protective plate 2 are fixedly connected with ultrasonic sensors.

[0010] As a further improvement of the above scheme, the absorbing and anti-collision component also includes a sliding rod symmetrically slidably connected to the inside of the support plate, the top end of the sliding rod is fixedly connected to the top plate, the bottom end of the sliding rod is fixedly connected to the stable placement frame, the outer wall of the sliding rod is sleeved with a compression spring three, and the two ends of the compression spring three are respectively fixedly connected to the support plate and the stable placement frame.

[0011] As a further improvement of the above solution, a fixed convex strip is fixedly connected to the outer wall of the reciprocating screw, and a fixed through groove is opened inside the moving gear.

[0012] As a further improvement of the above solution, the shapes of the fixing through groove, the fixing convex strip, the limiting rod and the limiting groove are all cross-shaped.

[0013] As a further improvement of the above solution, a fixing opening is provided on the outer wall of the fixing cylinder, and the movable plates are slidably connected inside the fixing opening.

[0014] As a further improvement of the above solution, a limiting opening is provided on the outer wall of the fixing rod, and the T-shaped rods are slidably connected inside the limiting opening.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When the ultrasonic sensor detects an object approaching during the flight of the drone, it will immediately send a signal to the controller when it is about to collide. The controller controls the micro electric gas rod to contract so that the mobile gear is meshed with the fixed gear, so that the moving plate, T-shaped plate, fixed rod, fixed frame, protective plate 2, protective plate 1 and protective top frame are synchronously slid up when the rotor body rotates at high speed, and the position of the support plate is in a static state. When the protective top frame slides up, the position between the moving rod and the protective plate 1 is misaligned, and the protective top frame can be flipped 90 degrees under the action of the pull rod, so that the connecting frame and the baffle are fitted together, and the baffle has a blocking effect on the connecting frame, and the protective plate 1 is raised to make the protective plate The plate 1 and the wing change from being parallel to each other, and the center position of the protective plate 1 moves up to the rotor body and is parallel to each other. At this time, the protective top frame is flipped on the top of the rotor body, so that the rotor body can be protected from multiple directions during flight through the protective plate 1, the protective plate 2 and the protective top frame. In the case where there is no obstacle in the air and no collision, the protective top frame is on the same vertical line as the protective plate 1, so that the protective top frame at this time will not affect the air flow at the position above the rotor body when it rotates at high speed, and reduce the increase in air resistance to the high-speed rotation of the rotor body. After the protective top frame is flipped to the top position of the rotor body, the rotor body can be protected from collision and damage in time. When the rotor body detects an obstacle through the ultrasonic sensor during high-speed flight, the controller synchronously controls the micro airbag to quickly inflate so that the micro airbag can be deployed. After inflation, the micro airbag has good elasticity and can effectively absorb the energy generated by the collision. When the rotor body collides with an obstacle, the micro airbag can slow down the impact force by deformation, reducing the direct impact on the rotor body. Compared with the existing technology, this solution has the following significant advantages. First, it can respond quickly when an obstacle is detected. Through the automatic adjustment of the protective structure and the rapid inflation of the micro airbag, it provides timely and effective protection for the rotor body. When no obstacle is encountered, the protective structure will not have a significant impact on the flight performance of the UAV, ensuring the efficient flight of the UAV. Secondly, the flip design of the protective top frame and the synergy with the protective plate one and the protective plate two realize multi-directional protection and greatly improve the reliability of protection. The setting of the micro airbag further enhances the ability to absorb collision energy and effectively reduces the risk of damage to the rotor body. Compared with traditional protection methods, this solution is more intelligent and flexible, can better adapt to different flight environments and emergencies, and provides a strong guarantee for the safe flight of UAVs.

[0016] 2. When the protective plate 1 and the protective plate 2 collide with an obstacle, the protective plate 1 moves inward due to the external collision force, so that the two ends of the buffer rod inside the protective plate 1 are respectively contracted into the protective plate 2 and the protective plate 1, and the compression spring 2 absorbs and buffers the collision force when it is squeezed by the collision, and the fixed rod and the T-shaped plate synchronously contract inward with the protective plate 1, and the collision force is absorbed again by the compression spring 1, so as to protect the rotor body while absorbing and reducing the collision force. When the UAV stops moving down to the ground, the four stable placement frames first contact the ground, and the four corners of the UAV can be supported synchronously, and the compression spring 3 can absorb the collision force generated when the UAV stops on the ground, thereby further increasing the parking stability of the UAV.

[0017] Compared with the existing technology, the present solution has obvious advantages. First, when a collision occurs, the multi-layer buffer structure can effectively absorb the collision force and provide reliable protection for the rotor body. The traditional protection method may rely on only a single structure to withstand the collision, while the present solution can absorb the collision energy more comprehensively through the synergistic effect of the buffer rod, compression spring one and compression spring two, greatly reducing the risk of damage to the rotor body. Secondly, when the UAV is parked, the design of the stable placement frame and compression spring three can not only ensure that the four corners of the UAV are supported synchronously, but also effectively absorb the ground collision force and improve the parking stability. Compared with the traditional parking method, the present solution can better adapt to different ground conditions, reduce the shaking and damage of the UAV caused by uneven ground or accidental collision, and provide all-round protection for the safety of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the multiple protection components of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle; Figure 4 It is a cross-sectional view of the overall structure of the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at B in the middle; Figure 6 For the present invention Figure 4 A magnified schematic diagram of the structure at C in the middle; Figure 7 For the present invention Figure 4 A magnified schematic diagram of the structure at D in the middle; Figure 8 For the present invention Figure 4 The enlarged schematic diagram of the structure at E in the middle; Fig. 9 For the present invention Figure 4 A magnified schematic diagram of the structure at F in the middle; Fig.10 For the present invention Fig. 9 Enlarged schematic diagram of the structure at G in the middle.

[0020] In the figure: 1. UAV body; 2. Wings; 3. Rotor motor; 4. Rotor body; 5. Multiple protection components; 501. Mounting base; 502. Fixed cylinder; 503. Rotating rod; 504. Limit rod; 505. Limit slot; 506. Reciprocating screw rod; 507. Fixed gear; 508. Micro electric gas rod; 509. Connecting plate; 510. Moving gear; 511. Moving plate; 512. T-shaped rod; 513. Movable slot; 514. Compression spring 1; 515. T-shaped plate; 516. Support plate; 517. Fixed rod; 518. Protective plate 1; 519. Moving rod; 520. T-shaped slide slot; 521. Micro airbag; 522. Connecting frame; 523. Protective top frame; 524. Baffle; 525. Pull rod; 6. Absorbing anti-collision component; 601. Fixed frame; 602. Protective plate 2; 603. Moving groove; 604. Buffer rod; 605. Retaining ring; 606. Compression spring 2; 607. Sliding rod; 608. Top plate; 609. Compression spring 3; 610. Stable placement frame; 7. Fixed through groove; 8. Fixed convex strip; 9. Fixed opening; 10. Limit opening. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 10 As shown, the present invention provides an embodiment: a high-stability protection mechanism for a drone rotor, comprising a drone body 1, four wings 2 are symmetrically fixedly connected to the outer wall of the drone body 1, the upper surfaces of the four wings 2 are fixedly connected to a rotor motor 3, one of the output shafts of the rotor motor 3 is fixedly connected to a rotor body 4, and also includes: The multiple protection component 5 is used for providing multi-directional protection to the rotor body 4 and can automatically activate the protection function; The collision-absorbing and anti-collision component 6 is used to increase the collision-proof effect of the rotor body 4 and absorb external forces to improve the stability of the rotor body 4 .

[0023] The multiple protection assembly 5 includes a mounting base 501 for mounting at the bottom of the wing 2. The mounting base 501 provides a stable mounting base for the multiple protection assembly 5 to ensure that the protection assembly will not loosen or fall off during the flight of the drone. It enables the protection assembly to be reliably connected to the wing 2 to provide effective protection for the rotor motor 3 and the rotor body 4. The outer wall of the mounting base 501 is fixedly connected to a fixing cylinder 502. The fixing cylinder 502 provides a stable support structure for the key components inside to prevent them from being deformed or damaged by external interference during flight. It can protect components such as the rotating rod 503 and the reciprocating screw rod 506 from external impacts and harsh environments to ensure their normal operation. The fixing cylinder 502 contacts the bottom of the wing 2 , the bottom end of the other output shaft of the rotor motor 3 is fixedly connected to a limit rod 504, which ensures the movement synchronization between the rotor motor 3 and the protection assembly, so that the protection plate 518 and other components can adjust their positions in time according to the rotation state of the rotor motor 3, providing all-round protection for the rotor body 4. It effectively transmits the power of the rotor motor 3, so that the protection assembly can closely cooperate with the movement of the rotor body 4, thereby improving the protection effect. The interior of the fixed cylinder 502 is rotatably connected with a rotating rod 503 and a reciprocating screw rod 506, respectively. The rotating rod 503 provides precise guidance for the movement of the moving plate 511, ensuring that the protection plate 518 and other components can be accurately moved to the specified position when needed, thereby achieving effective protection of the rotor body 4. With the cooperation of the positioning rod 504, the rotating rod 503 can rotate synchronously with the rotor motor 3, ensuring the movement coordination of the protection component and the rotor body 4. A limiting groove 505 is provided inside the rotating rod 503, and the bottom end of the limiting rod 504 is inserted into the limiting groove 505. The outer wall of the reciprocating screw rod 506 is slidably connected with a moving plate 511. The moving plate 511 serves as a connecting and transmission component to transmit the power of the reciprocating screw rod 506 to the protective plate 518 and other components, thereby realizing rapid movement and position adjustment of the protective plate. It can move the protective plate to the appropriate position in time according to the flight status and obstacle detection conditions, thereby providing effective protection for the rotor body 4. The moving plate 511 is slidably connected to the outer wall of the rotating rod 503, and an active The movable groove 513 is internally slidably connected with a T-shaped plate 515. The combined design of the movable groove 513 and the T-shaped plate 515 provides an additional buffering function for the protective plate 518. When the protective plate 518 is hit, the T-shaped plate 515 can move in the movable groove 513, and the compression spring 514 absorbs the collision energy to reduce the impact on the protective component and the rotor body 4. This buffering design improves the impact resistance of the protective component and extends its service life. The side where the T-shaped plate 515 and the movable groove 513 are close is fixedly connected with a compression spring 514. The compression spring 514 plays an important buffering role when the protective plate 518 is hit, and can effectively absorb the collision energy and reduce the impact on the protective component and the rotor body 4.It improves the impact resistance of the protective component and protects the key components of the drone. The end of the T-shaped plate 515 away from the compression spring 514 is fixedly connected to a fixing rod 517. The fixing rod 517 provides a stable support structure for the protective plate 518, ensuring that the protective plate 518 can be accurately moved to the specified position when needed, providing effective protection for the rotor body 4. It can transmit external force, so that the protective plate 518 can transmit the force to the T-shaped plate 515 and the compression spring 514 when it is hit, to achieve a buffering effect. The top of the fixing rod 517 is fixedly connected to the protective plate 518. The protective plate 518 provides direct physical protection for the rotor body 4, can block the collision of external objects, and protect the rotor body 4 from damage. It can adjust its position according to different situations to achieve all-round protection of the rotor body 4.

[0024] The multi-protection assembly 5 also includes a support plate 516 fixedly connected to the bottom of the fixed cylinder 502. The support plate 516 provides a stable bottom support structure for the entire protection assembly, ensuring that the moving rod 519 and other components can slide smoothly on its surface. The upper surface of the support plate 516 is slidably connected to the moving rod 519. The moving rod 519 plays a key transmission role in the movement of the protection assembly. It can coordinate the movement of various components and realize the synchronous or independent movement of the protection plate 1 518 and the protection top frame 523 according to different situations. The moving rod 519 The outer wall of the protective plate 518 is fixedly connected with a T-shaped rod 512, and the T-shaped rod 512 ensures the movement transmission between the mobile rod 519 and the fixed rod 517, so that the movement of the protective plate 518 can drive the mobile rod 519 to move, and then affect the state of the protective top frame 523 through the pull rod 525. The fixed rod 517 is provided with a T-shaped slide groove 520 inside, and the T-shaped slide groove 520 provides a stable sliding space for the T-shaped rod 512, ensuring the movement accuracy and reliability between the mobile rod 519 and the fixed rod 517, which enables the movement of the protective plate 518 to be accurate. The protective top frame 523 is transmitted to the moving rod 519, thereby affecting the state change of the protective top frame 523. The end of the T-shaped rod 512 away from the moving rod 519 is slidably connected to the inside of the T-shaped slide groove 520. The top of the protective plate 518 is fixedly connected to a rotating bracket. The inside of the rotating bracket is rotatably connected to a connecting frame 522. The outer wall of the connecting frame 522 is fixedly connected to a protective top frame 523. The protective top frame 523 provides upper protection for the rotor body 4, and together with the protective plate 518 and other components, it constitutes a multi-directional protection system, which can effectively prevent the unmanned aerial vehicle from flying. In order to block the risk of collision from above and protect the safety of the rotor body 4, a pull rod 525 is rotatably connected between the moving rod 519 and the connecting frame 522, and a baffle 524 is fixedly connected to the outer wall of the connecting frame 522. The baffle 524 provides a limiting function for the movement of the pull rod 525 to ensure that the pull rod 525 moves within a certain range, thereby ensuring that the movement of the protective top frame 523 is stable and reliable. It can prevent the pull rod 525 from excessive movement causing failure of the protective structure, thereby improving the safety and stability of the multiple protection assembly 5, and the pull rod 525 slides inside the baffle 524.

[0025] The multiple protection assembly 5 also includes a fixed gear 507 fixedly connected to the outer wall of the rotating rod 503. When the protection mechanism needs to be activated, the rotation of the rotating rod 503 can be accurately controlled by meshing the fixed gear 507 with the mobile gear 510, thereby driving the related protective plate 518 and other components to move accordingly, thereby realizing rapid protection of the rotor body 4. The inner wall of the fixed cylinder 502 is fixedly connected with a micro electric gas rod 508. When an obstacle is detected, the micro electric gas rod 508 can respond quickly and control the position of the mobile gear 510 through the precise movement of the telescopic shaft to achieve meshing or separation with the fixed gear 507. This rapid response capability greatly improves the effectiveness and timeliness of the protection assembly, and can provide reliable protection for the drone at critical moments. At the same time, its small size and stable power make it The whole protection system is more compact and efficient. The telescopic shaft of the micro electric pneumatic rod 508 is fixedly connected to the connecting plate 509. The upper surface of the connecting plate 509 is rotatably connected to the moving gear 510. When the moving gear 510 is engaged with the fixed gear 507, it can accurately transmit power to control the rotation of the rotating rod 503, thereby driving the protection plate 518 and other components to perform protection actions. The cooperation between it, the connecting plate 509 and the micro electric pneumatic rod 508 realizes the automatic control of the protection system and improves the efficiency and reliability of protection. At the same time, its gear transmission method has the advantages of accurate transmission ratio and strong carrying capacity, and can adapt to the protection needs of drones in different flight conditions. The moving gear 510 and the connecting plate 509 are both slidably connected to the outer wall of the reciprocating screw 506, and the moving gear 510 and the fixed gear 507 are engaged with each other.

[0026] The anti-collision absorption component 6 includes a fixing frame 601 symmetrically fixedly connected to the outer wall of the movable plate 511. Through the connection between the fixing frame 601 and the movable plate 511, it can move with the movement of the movable plate 511, ensuring that the protective plate 2 602 can be quickly put in place when needed to provide side protection for the rotor body 4. Its symmetrical fixing method ensures the stable position of the protective plate 2 602 and improves the reliability of protection. The end of the fixing frame 601 away from the movable plate 511 is fixedly connected with the protective plate 2 602. When encountering a collision, the protective plate 2 602 can effectively block the direct impact of external objects on the rotor body 4 and protect the safety of the rotor body 4. It is fixedly connected to the fixing frame 601, making the protection more solid and able to withstand greater impact force. The outer walls of the protective plate 2 602 and the protective plate 1 518 are fixedly connected with micro airbags 521. When the protective plate 1 518 and the protective plate 2 602 are collided, the expansion of the micro airbags 521 can absorb a large amount of collision energy and reduce the impact on the protective plate and the rotor body 4. The fast response characteristic greatly improves the protection effect and reduces the risk of damage to the rotor body 4. The inside of the protective plate 1 518 and the protective plate 2 602 are both provided with a movable groove 603, and the inside of the movable groove 603 is symmetrically and slidably connected with a buffer rod 604. When the protective plate 1 518 and the protective plate 2 602 are collided, the buffer rod 604 slides in the movable groove 603 to disperse the collision force to different directions, thereby reducing the direct impact on the protective plate and the rotor body 4. Its symmetrical design makes the buffering effect more uniform and improves the stability of protection. The outer wall of the buffer rod 604 is symmetrically and fixedly connected with a retaining ring 605, and the outer wall of the buffer rod 604 is sleeved with a compression spring 2 606. When the buffer rod 604 slides in the movable groove 603, the compression spring 2 606 is compressed to reduce the impact on the protective plate and the rotor body 4 through its elastic deformation. The cooperation between the compression spring 2 606 and the buffer rod 604 provides a double buffering effect, thereby greatly improving the protection performance. The outer walls of the protective plate 1 518 and the protective plate 2 602 are both fixedly connected with an ultrasonic sensor.

[0027] The anti-collision absorption component 6 also includes a slide bar 607 symmetrically slidably connected to the inside of the support plate 516. When the drone lands, the stable placement frame 610 contacts the ground, and the slide bar 607 slides in the support plate 516, so that the stable placement frame 610 can be adaptively adjusted according to the unevenness of the ground to ensure that the drone is parked smoothly. At the same time, the sliding design of the slide bar 607 also helps to disperse the impact force during landing and protect the structure of the drone. The top end of the slide bar 607 is fixedly connected to the top plate 608, and the bottom end of the slide bar 607 is fixedly connected to the stable placement frame 610. When the drone lands, the stable placement frame 610 can first contact the ground to stabilize the four corners of the drone. Synchronous support is provided at the places to ensure the stability of the parking of the UAV. Its special design can adapt to different ground conditions, increase the friction with the ground, and prevent the UAV from sliding or tipping over when parked. The outer wall of the slide bar 607 is sleeved with a compression spring three 609. When the UAV lands or is impacted by an external force, the compression spring three 609 is compressed, and its elastic deformation is used to buffer the impact force and protect the structure and internal components of the UAV. At the same time, the existence of the compression spring three 609 also makes the support of the stable placement frame 610 softer, reducing the rigid impact on the UAV. The two ends of the compression spring three 609 are respectively fixedly connected to the support plate 516 and the stable placement frame 610.

[0028] Reference Fig.10 As shown, the outer wall of the reciprocating screw rod 506 is fixedly connected with a fixed convex strip 8, and the interior of the moving gear 510 is provided with a fixed through slot 7; Reference Fig.10 As shown, the shapes of the fixing through slot 7, the fixing convex strip 8, the limiting rod 504 and the limiting slot 505 are all cross-shaped; Reference Fig. 9 As shown, the outer wall of the fixed cylinder 502 is provided with a fixed opening 9, and the movable plates 511 are all slidably connected inside the fixed opening 9; Reference Figure 3 As shown, a limiting opening 10 is provided on the outer wall of the fixing rod 517 , and the T-shaped rods 512 are slidably connected inside the limiting opening 10 .

[0029] In combination with the above preferred embodiments, the working principle of the present invention is as follows: In the initial state, the telescopic axis of the micro electric gas rod 508 is in an extended state, the moving gear 510 and the fixed gear 507 are in a non-engaged state, the limiting rod 504 is inside the limiting groove 505, the compression spring 1 514 is in an uncompressed state, the protective top frame 523 and the protective plate 1 518 are on the same vertical line, the rotor body 4 and the protective top frame 523 are in a vertical state, the compression spring 2 606 and the compression spring 3 609 are both in an uncompressed state, and the micro airbag 521 is in an unopened state.

[0030] When working: By starting the rotor motor 3, the rotor body 4 and the limit rod 504 fixedly connected thereto are driven to rotate synchronously at high speed, and by installing the card holder 501 and clamping it on the bottom of the wing 2, the multi-protection component 5 can be quickly installed on the wing 2, which is convenient for installation and removal. During the high-speed rotation of the UAV in the air, when the ultrasonic sensors on the outer walls of the protective plate 1 518 and the protective plate 2 602 automatically sense the obstacle that is about to collide, the ultrasonic sensors immediately send a signal to the controller, and the controller electrically controls the telescopic shaft of the micro electric gas rod 508 to contract and drive the connecting plate 509 fixedly connected thereto to rise, and the connecting plate 509 drives the moving gear 510 connected thereto to rise to the position aligned with the fixed gear 507 is in meshing state, and the limiting rod 504 is arranged inside the limiting groove 505 at this time. When the limiting rod 504 rotates, the blocking force generated by the cross of the limiting rod 504 and the limiting groove 505 drives the rotating rod 503 to rotate synchronously. The rotation of the rotating rod 503 drives the fixed gear 507 fixedly connected thereto to rotate synchronously. The fixed gear 507 drives the moving gear 510 meshing therewith to rotate synchronously. The rotation of the moving gear 510 drives the reciprocating screw rod 506 to rotate synchronously through the blocking force generated by the cross of the fixed through groove 7 and the fixed convex strip 8. The moving plate 511 can be made to rise by the reciprocating screw rod 506. The rise of the moving plate 511 drives the internal compression spring 514 and the T-shaped plate 515 to move upward synchronously. The rise of the T-shaped plate 515 drives the fixed rod 517, the protective plate 1 518, the connecting frame 522 and the protective top frame 523 connected thereto to rise synchronously, and the protective plate 1 518 parallel to the bottom of the wing 2 rises to a state parallel to the rotor body 4. At this time, the bottom of the protective top frame 523 is in a state higher than the top of the rotor body 4, and the protective plate 1 518 and the protective plate 2 602 play a preliminary protective effect on the rotor body 4. Since the support plate 516 is fixed to the fixed cylinder 502, the moving rod 519 and the support plate 516 are synchronously in a static state, and the rise of the fixed rod 517 can make the T-shaped rod 512 slide inside the T-shaped slide groove 520, and the T-shaped rod 512 and the T-shaped slide groove 520 can be used to prevent the rotor body 4 from being damaged. The groove 520 can connect the fixed rod 517 and the movable rod 519, and through the rotation of the protective top frame 523, the connecting frame 522 and the protective top frame 523 are synchronously rotated 90 degrees under the connection of the pull rod 525, so that the connecting frame 522 conflicts with the baffle 524, and the baffle 524 can block the connecting frame 522 to prevent the protective top frame 523 from excessively rotating and affecting the high-speed operation of the rotor body 4. After the protective top frame 523 is rotated 90 degrees, the protective top frame 523 is flipped to the top of the rotor body 4, so that the protective top frame 523, the protective plate 1 518 and the protective plate 2 602 can increase the protection effect of the rotor body 4 from multiple directions, thereby reducing the situation where obstacles damage the rotor body 4.

[0031] At the same time, when the rotor body 4 detects an obstacle through the ultrasonic sensor during high-speed flight, the controller synchronously controls the micro airbag 521 to quickly inflate so that the micro airbag 521 can be deployed. The micro airbag 521 has good elasticity after inflation and can effectively absorb the energy generated by the collision. When the rotor body 4 collides with an obstacle, the micro airbag 521 can reduce the impact force by deformation, reduce the direct impact on the rotor body 4, and thus can protect the rotor body 4 again. When the drone does not encounter an obstacle in the air and is collided, the protective top frame 523 is on the same vertical line as the protective plate 1 518, so that the protective top frame 523 at this time will not affect When the rotor body 4 rotates at high speed, the air flow in the upper position is reduced, and the air resistance to the high-speed rotation of the rotor body 4 is increased. After the UAV is hit, the ultrasonic sensor is used for continuous monitoring. If there is no obstacle outside, the protective top frame 523 is controlled to reset. It is only necessary to start the device immediately before the collision is detected. When there is no obstacle collision, the device is reset to its original position, so that the rotor body 4 can interact with the air more freely, reducing the additional air resistance caused by the protective top frame 523, so that the UAV may be more flexible and efficient during flight. When the protective top frame 523 is in a vertical state, it can still increase the protection effect of the rotor body 4 from the side without affecting the air resistance of the rotor body 4.

[0032] When an obstacle collides with the micro airbag 521 on the outer wall of the protective plate 518, the collision force pushes the protective plate 518 to shrink toward the position of the unmanned aerial vehicle 1, and the shrinkage of the protective plate 518 drives the fixed rod 517, the connecting frame 522, the protective top frame 523, the T-shaped rod 512 and the moving rod 519 to move synchronously. When the protective plate 518 shrinks, the two ends of the buffer rod 604 slide in the protective plate 518 and the protective plate 602 respectively, and the compression spring 606 is squeezed and compressed. The elastic force of the compression spring 606 can have a certain buffering effect on the external collision force, and the compression spring 606 can absorb the collision force, thereby further increasing the anti-collision effect on the rotor body 4.

[0033] When the drone stops, the stable mounting frames 610 at the four corners of the drone first hit the ground, and the drone will be affected by the crosswind when landing, resulting in unstable landing. The drone will tilt or slide after landing, and thus collide with surrounding objects. When the stable mounting frame 610 is collided, the slide bar 607 will push the top plate 608 fixed to it to slide up, and the compression spring three 609 on the outer wall of the slide bar 607 will be squeezed and compressed, and the compression force of the collision can be absorbed by the rebound force of the compression spring three 609, so that the drone can play an anti-collision effect during the landing process, thereby increasing the service life of the drone.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-stability protection mechanism for a drone rotor, comprising a drone body (1), the outer wall of the drone body (1) being symmetrically fixedly connected to four wings (2), the upper surfaces of the four wings (2) being fixedly connected to a rotor motor (3), one of the output shafts of the rotor motor (3) being fixedly connected to a rotor body (4), characterized in that: Also included are: A multiple protection component (5) is used to provide multi-directional protection to the rotor body (4) and can automatically activate a protection function; The anti-collision absorption component (6) is used to increase the anti-collision effect of the rotor body (4) and absorb external forces to improve the stability of the rotor body (4).

2. The high stability protection mechanism for the rotor of an unmanned aerial vehicle according to claim 1, characterized in that: The multi-protection assembly (5) comprises a mounting base (501) for mounting at the bottom of the wing (2); the outer wall of the mounting base (501) is fixedly connected to a fixing cylinder (502); the fixing cylinder (502) abuts against the bottom of the wing (2); the bottom end of another output shaft of the rotor motor (3) is fixedly connected to a limiting rod (504); the interior of the fixing cylinder (502) is rotatably connected to a rotating rod (503) and a reciprocating screw rod (506); the interior of the rotating rod (503) is provided with a limiting groove (505); the bottom end of the limiting rod (504) is inserted into the interior of the limiting groove (505); The outer wall of the reciprocating screw rod (506) is slidably connected to a movable plate (511), and the movable plate (511) is slidably connected to the outer wall of the rotating rod (503). A movable groove (513) is provided inside the movable plate (511), and a T-shaped plate (515) is slidably connected inside the movable groove (513). A compression spring (514) is fixedly connected to the side of the T-shaped plate (515) close to the movable groove (513), and a fixed rod (517) is fixedly connected to the end of the T-shaped plate (515) away from the compression spring (514), and a protective plate (518) is fixedly connected to the top of the fixed rod (517).

3. The high stability protection mechanism for the rotor of an unmanned aerial vehicle according to claim 2, characterized in that: The multiple protection assembly (5) also includes a support plate (516) fixedly connected to the bottom of the fixed cylinder (502), the upper surface of the support plate (516) is slidably connected to a moving rod (519), the outer wall of the moving rod (519) is fixedly connected to a T-shaped rod (512), a T-shaped slide groove (520) is provided inside the fixed rod (517), one end of the T-shaped rod (512) away from the moving rod (519) is slidably connected to the inside of the T-shaped slide groove (520), the top of the protection plate 1 (518) is fixedly connected to a rotating bracket, the inside of the rotating bracket is rotatably connected to a connecting frame (522), the outer wall of the connecting frame (522) is fixedly connected to a protection top frame (523), a pull rod (525) is rotatably connected between the moving rod (519) and the connecting frame (522), the outer wall of the connecting frame (522) is fixedly connected to a baffle (524), and the pull rod (525) slides inside the baffle (524).

4. The high stability protection mechanism for the rotor of an unmanned aerial vehicle according to claim 3 is characterized in that: The multi-protection assembly (5) further comprises a fixed gear (507) fixedly connected to the outer wall of the rotating rod (503); a micro electric gas rod (508) is fixedly connected to the inner wall of the fixed cylinder (502); a telescopic shaft of the micro electric gas rod (508) is fixedly connected to a connecting plate (509); a moving gear (510) is rotatably connected to the upper surface of the connecting plate (509); the moving gear (510) and the connecting plate (509) are both slidably connected to the outer wall of the reciprocating screw rod (506); and the moving gear (510) and the fixed gear (507) are meshed with each other.

5. The high stability protection mechanism for the rotor of a UAV according to claim 4, characterized in that: The collision absorption component (6) includes a fixed frame (601) symmetrically fixedly connected to the outer wall of the movable plate (511), the end of the fixed frame (601) away from the movable plate (511) is fixedly connected to the second protective plate (602), the outer walls of the second protective plate (602) and the first protective plate (518) are fixedly connected to the micro airbag (521), the interiors of the first protective plate (518) and the second protective plate (602) are provided with a movable groove (603), the interiors of the movable groove (603) are symmetrically slidably connected to the buffer rod (604), the outer walls of the buffer rod (604) are symmetrically fixedly connected to the retaining ring (605), the outer wall of the buffer rod (604) is sleeved with the second compression spring (606), and the outer walls of the first protective plate (518) and the second protective plate (602) are fixedly connected to the ultrasonic sensor.

6. The high stability protection mechanism for the rotor of a UAV according to claim 5, characterized in that: The collision-absorbing component (6) further comprises a slide bar (607) symmetrically slidably connected to the inside of the support plate (516); the top end of the slide bar (607) is fixedly connected to a top plate (608); the bottom end of the slide bar (607) is fixedly connected to a stable placement frame (610); a compression spring three (609) is sleeved on the outer wall of the slide bar (607); and the two ends of the compression spring three (609) are respectively fixedly connected to the support plate (516) and the stable placement frame (610).

7. The high stability protection mechanism for the rotor of an unmanned aerial vehicle according to claim 4, characterized in that: A fixed convex strip (8) is fixedly connected to the outer wall of the reciprocating screw rod (506), and a fixed through groove (7) is provided inside the moving gear (510).

8. The high stability protection mechanism for the rotor of an unmanned aerial vehicle according to claim 7, characterized in that: The shapes of the fixing through slot (7), the fixing convex strip (8), the limiting rod (504) and the limiting slot (505) are all cross-shaped.

9. The high stability protection mechanism for the rotor of an unmanned aerial vehicle according to claim 2, characterized in that: The outer wall of the fixed cylinder (502) is provided with a fixed opening (9), and the movable plates (511) are slidably connected inside the fixed opening (9).

10. The high stability protection mechanism for the rotor of a UAV according to claim 3, characterized in that: The outer wall of the fixing rod (517) is provided with a limiting opening (10), and the T-shaped rods (512) are slidably connected inside the limiting opening (10).

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