Rotor wing protection frame of unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicle accessories, and particularly provides an unmanned aerial vehicle rotor wing protection frame which comprises a mounting base, a positive and negative tooth screw rod is rotationally mounted on the mounting base, sliding plates are arranged on two sets of threaded sections of the positive and negative tooth screw rod, and threaded holes matched with the positive and negative tooth screw rod are formed in the sliding plates. The mounting base is provided with a limiting rod parallel to the positive and negative tooth screw rod, the sliding plate is provided with a sliding hole matched with the limiting rod, the sliding plate is provided with arc-shaped clamping plates, the two arc-shaped clamping plates clamp and fix an arm of the unmanned aerial vehicle, one end of the positive and negative tooth screw rod is provided with a first rotary knob, and the two sides of the mounting base are provided with connecting mechanisms which are connected with the arc-shaped protection frame. The unmanned aerial vehicle rotor wing protection frame not only can protect the rotor wing of the unmanned aerial vehicle, but also can be conveniently installed on unmanned aerial vehicles of different models, protection frames of different sizes can be installed, and the unmanned aerial vehicle rotor wing protection frame is suitable for rotor wing unmanned aerial vehicles of different models and different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle accessories, in particular to a rotor guard for an unmanned aerial vehicle. Background Art

[0002] Micro-rotor drones, the product of micro-electromechanical system integration, have become a research focus for many laboratories both domestically and internationally, owing to their capabilities such as vertical takeoff and landing, free hovering, flexible control, and strong adaptability to diverse environments. Currently, numerous fields are leveraging the advantages of drones combined with GIS in real-time spatialization, 2D and 3D map linkage, and video and GIS enhancement. These efforts are expanding into four key application areas: 2D and 3D data production and application, spatialized video production and application, feature information collection and application, and drone-based mobile GIS applications. These efforts are creating integrated solutions for natural resource monitoring, emergency command and rescue, key area protection, and urban planning and construction.

[0003] The rotors of micro-rotor drones often require guards to protect them from damage when the drone hits buildings or trees. However, the existing drone rotor guards have a fixed structure, which makes it difficult to adjust the size and replace guards of different sizes, and are not suitable for different models of rotor drones. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a UAV rotor guard frame, which is easy to install by clamping and disassemble, and is conducive to replacing different guard frames according to different size requirements.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a drone rotor guard frame, including a mounting seat, a positive and negative threaded screw is rotatably installed on the mounting seat, two groups of threaded sections of the positive and negative threaded screw are provided with sliding plates, the sliding plates are provided with threaded holes that cooperate with the positive and negative threaded screws, a limiting rod parallel to the positive and negative threaded screws is provided on the mounting seat, a sliding hole is provided on the sliding plate and the limiting rod is provided, an arc-shaped clamping plate is provided on the sliding plate, two groups of arc-shaped clamping plates clamp and fix the drone arm, a first knob is provided at one end of the positive and negative threaded screw, and connecting mechanisms are provided on both sides of the mounting seat, and the connecting mechanisms are connected to the arc-shaped guard frame.

[0006] In a preferred embodiment, the connecting mechanism includes a sliding sleeve, the inner wall of the sliding sleeve is provided with at least one group of sliding grooves, a threaded sleeve is arranged in the sliding sleeve, a sliding block that cooperates with the sliding groove is provided on the outer side of the threaded sleeve, an internal thread is provided on the inner wall of the threaded sleeve, a rotating rod is provided in the sliding sleeve, one end of the rotating rod is rotatably mounted on the end of the sliding sleeve, and the other end is provided with a screw, the end of the threaded sleeve is provided with a through hole for the rotating rod to pass through, the screw cooperates with the internal thread of the inner wall of the threaded sleeve, a driving mechanism for rotating the rotating rod is provided on the sliding sleeve, a connecting rod is provided at the lower end of the threaded sleeve, and the connecting rod is connected to the arc-shaped guard frame.

[0007] In a preferred solution, the driving mechanism includes a driving shaft rotatably mounted on the side wall of the sliding sleeve, the driving shaft is provided with a driving bevel gear, the rotating rod is provided with a driven bevel gear meshing with the driving bevel gear, and one end of the driving shaft is provided with a third knob.

[0008] In the preferred solution, the connecting mechanism is connected to the mounting base through an angle adjustment mechanism, and each set of angle adjustment mechanisms includes two sets of mounting plates arranged on one side of the mounting base, the worm is rotatably installed between the two sets of mounting plates, a hinged seat is provided on one side of the mounting base, the rotating shaft is rotatably installed on the hinged seat, the worm gear is fixed on the rotating shaft, the worm gear is engaged with the worm, the rotating shaft is connected to the connecting mechanism through the rotating plate, and a second knob is provided at one end of the worm.

[0009] In a preferred solution, the connecting rod is connected to the arc-shaped guard frame through a connecting seat, the connecting seat is arranged on the arc-shaped guard frame, and a slot is provided on one side of the connecting seat. After the end of the connecting rod is inserted into the slot, it is connected to the connecting seat through a bolt.

[0010] The utility model provides a UAV rotor guard, which has the following beneficial effects:

[0011] 1. Turn the first knob to adjust the position of the curved clamping plate to clamp the drone's arm. The curved design better fits the shape of the drone's arm, providing stable and uniform clamping force, effectively preventing the drone from shaking or falling off during flight. Multiple sets of rotor guards are installed, and the curved guards surround the drone's rotors in the middle area to protect them.

[0012] 2. The rotor guard is clamped and fixed by an arc-shaped clamping plate, which facilitates the disassembly, assembly and replacement of the entire rotor guard and is convenient for protecting drones of different sizes.

[0013] 3. When the size of the drone is different, the coverage of its drone rotor is also different. By adjusting the length of the connecting mechanism, it can be docked and installed with arc-shaped guards of different sizes, thereby adapting to drones of different sizes.

[0014] 4. The angle adjustment mechanism is set on the mounting seat, which is used to adjust the angle of the connecting mechanism to adapt to the layout and angle requirements of different UAV rotors, thereby enhancing the versatility and adaptability of the guardrail. The connecting mechanism is assembled on the angle adjustment mechanism, and through telescopic adjustment, the overall size of the UAV rotor guardrail can be flexibly adjusted to ensure effective protection for rotors of different sizes. The arc-shaped guardrail is set on the connecting mechanism to directly wrap and protect the UAV rotor to prevent it from being impacted or damaged during flight or transportation, thereby improving the safety and service life of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of a top-view cross-sectional structure of a UAV rotor guard provided by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the front cross-sectional structure of the middle mounting seat;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part A shown in FIG;

[0019] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG;

[0020] Figure 5 It is a structural diagram of the connecting mechanism;

[0021] Figure 6 for Figure 1 Schematic diagram of the enlarged structure of part C shown in;

[0022] In the figure: mounting base 1, positive and negative thread screw 2, sliding plate 3, arc-shaped clamping plate 4, limiting rod 5, first knob 6, connecting mechanism 7, sliding sleeve 701, sliding groove 702, threaded sleeve 703, sliding block 704, connecting rod 705, driving shaft 706, active bevel gear 707, driven bevel gear 708, third knob 709, screw 710, rotating rod 711, angle adjustment mechanism 8, mounting plate 801, worm 802, rotating shaft 803, worm gear 804, rotating plate 805, second knob 806, hinged seat 807, connecting seat 9, slot 901, arc-shaped guard frame 10, bolt 11. DETAILED DESCRIPTION

[0023] Example 1:

[0024] like Figures 1 and 2As shown, a drone rotor guard frame includes a mounting base 1, which can be set to a frame-type structure or a shell-type structure, and is the basic supporting structure of the entire guard frame. The forward and reverse thread screws 2 are rotatably mounted on the mounting base 1 through bearings, and the forward and reverse thread screws 2 are provided with two groups of threaded segments in opposite directions, and the two groups of threaded segments of the forward and reverse thread screws 2 are provided with sliding plates 3, and the sliding plates 3 are provided with threaded holes that cooperate with the forward and reverse thread screws 2. A limiting rod 5 parallel to the forward and reverse thread screws 2 is provided on the mounting base 1, and a sliding hole is provided on the sliding plate 3 with the limiting rod 5. The limiting rod 5 guides and limits the sliding plate 3, and an arc-shaped clamping plate 4 is provided on the sliding plate 3. Two groups of arc-shaped clamping plates 4 clamp and fix the drone's arm, and a first knob 6 is provided at one end of the forward and reverse thread screw 2. Connecting mechanisms 7 are provided on both sides of the mounting base 1, and the connecting mechanisms 7 are connected to the arc-shaped guard frame 10.

[0025] In actual use, the number of rotor guards is set according to the number of drone rotors. By turning the first knob 6, the two sets of sliding plates 3 can be simultaneously driven to move in opposite or relative directions. After adjusting the distance between the two sets of arc-shaped clamping plates 4, the two sets of arc-shaped clamping plates 4 are set on both sides of the drone's arm, that is, on both sides of the drone's rotor arm. Turning the first knob 6 drives the arc-shaped clamping plates 4 to adjust their position to clamp the drone's arm. Its arc-shaped design can better fit the shape of the drone's arm, providing a stable and uniform clamping force, effectively preventing the drone from shaking or falling off during flight. After clamping is completed, the connecting mechanism 7 is in a horizontal state. By setting multiple sets of rotor guards, multiple arc-shaped guards 10 form a ring frame. The arc-shaped guards 10 surround the drone rotor in the middle area to protect the drone rotor. The guards are clamped and fixed by the arc-shaped clamping plates 4, making it convenient to disassemble, assemble and replace the entire rotor guard, and conveniently protecting drones of different sizes.

[0026] Example 2:

[0027] Different from implementation 1, Figures 3-5 As shown, the connecting mechanism 7 includes a sliding sleeve 701, one end of the sliding sleeve 701 is closed and the other end is open, the inner wall of the sliding sleeve 701 is provided with at least one group of sliding grooves 702, the threaded sleeve 703 is arranged in the sliding sleeve 701 and extends from the open end of the East China sleeve 701, and the outer side of the threaded sleeve 703 is provided with a sliding block 704 that cooperates with the sliding groove 702, and the sliding block 704 can move longitudinally along the sliding groove 702. At the same time, the cooperation between the sliding groove 702 and the sliding block 704 can limit the threaded sleeve 703 in the circumferential direction.

[0028] The inner wall of the threaded sleeve 702 is provided with an internal thread, and a rotating rod 711 is provided in the sliding sleeve 701. One end of the rotating rod 711 is rotatably installed on the end of the sliding sleeve 701 through a bearing, and the other end is provided with a screw 710. The end of the threaded sleeve 702 is provided with a through hole for the rotating rod 711 to pass through, so that the rotating rod 711 can extend into the threaded sleeve 702 from the through hole. The screw 710 cooperates with the internal thread on the inner wall of the threaded sleeve 702. A driving mechanism for driving the rotating rod 711 to rotate is provided on the sliding sleeve 701. A connecting rod 705 is provided at the lower end of the threaded sleeve 703, and the connecting rod 705 is connected to the arc-shaped guard frame 10.

[0029] The driving mechanism drives the rotating rod 711 to rotate, causing the screw 710 to rotate synchronously. Due to the threaded fit between the screw 710 and the threaded sleeve 702, and the circumferential limiting effect of the sliding groove 702 on the threaded sleeve 703, the threaded sleeve 703 moves along the sliding sleeve 701, thereby adjusting the length of the threaded sleeve 703 extending out of the sliding sleeve 701, thereby realizing the length adjustment of the connecting mechanism 7.

[0030] When the sizes of drones are different, the coverage of their drone rotors is also different. By adjusting the length of the connecting mechanism 7, it can be docked and installed with arc-shaped guard frames 10 of different sizes, thereby adapting to drones of different sizes.

[0031] In this embodiment, the driving mechanism includes a driving shaft 706 rotatably mounted on the side wall of the sliding sleeve 701 through a bearing, a driving bevel gear 707 is provided on the driving shaft 706, a driven bevel gear 708 meshing with the driving bevel gear 707 is provided on the rotating rod 711, and a third knob 709 is provided at one end of the driving shaft 706.

[0032] The driving shaft 706 and the active bevel gear 707 are driven to rotate synchronously by the third knob 709. The active bevel gear 707 is engaged with the driven bevel gear 708, so that the rotating rod 711 rotates synchronously, thereby realizing the synchronous rotation of the screw rod 710. Since the screw rod 710 and the threaded sleeve 702 are threadedly matched, the threaded sleeve 703 moves along the sliding sleeve 701, thereby adjusting the length of the threaded sleeve 703 extending out of the sliding sleeve 701, thereby realizing the length adjustment of the connecting mechanism 7.

[0033] Preferably, Figure 6 As shown, the connecting rod 705 is connected to the arc-shaped guard frame 10 through the connecting seat 9. The connecting seat 9 is fixed on the arc-shaped guard frame 10 to form a guard frame mechanism. A slot 901 is provided on one side of the connecting seat 9. The end of the connecting rod 705 is inserted into the slot 901 and connected to the connecting seat 9 through a bolt 11.

[0034] Optionally, a pin hole is provided on one side of the end of the connecting rod 705, and a threaded hole is provided on the side wall of the slot 901 to cooperate with the bolt 11. The bolt 11 is screwed into the threaded hole and then inserted into the pin hole to achieve the installation of the connecting rod 705 and the connecting seat 9.

[0035] The connecting rod 705 is detachably connected to the connecting seat 9, which facilitates the replacement of arc-shaped guard frames 10 with different curvatures and lengths.

[0036] Example 3:

[0037] Different from Example 2, Figure 1 and 3 As shown, the connecting mechanism 7 is connected to the mounting base 1 through an angle adjustment mechanism 8. Each group of angle adjustment mechanisms 8 includes two groups of mounting plates 801 arranged on one side of the mounting base 1. The worm 802 is rotatably installed between the two groups of mounting plates 801. A hinged seat 807 is provided on one side of the mounting base 1. The rotating shaft 803 is rotatably installed on the hinged seat 807. The worm gear 804 is fixed on the rotating shaft 803. The worm gear 804 is engaged with the worm 802. The rotating shaft 803 is connected to the connecting mechanism 7 through a rotating plate 805. Specifically, the rotating plate 805 is connected to one end of the sliding sleeve 701, and a second knob 806 is provided at one end of the worm 802.

[0038] The worm 802 is driven to rotate by the second knob 806, and the worm 802 drives the rotating shaft 803 to rotate by engaging with the worm wheel 804, and the rotating plate 805 is driven to rotate by the rotating shaft 803, so that the angle of the connecting mechanism 7 can be adjusted, so that the connecting mechanism 7 can be conveniently docked and installed with arc-shaped guards 10 of different sizes, and the angle can be adjusted to facilitate docking with the connecting seat 9.

[0039] The angle adjustment mechanism 8 is arranged on the mounting seat 1, which is used to adjust the angle of the connecting mechanism 7 to adapt to the layout and angle requirements of different UAV rotors, thereby enhancing the versatility and adaptability of the guardrail. The connecting mechanism 7 is assembled on the angle adjustment mechanism 8, and through telescopic adjustment, the overall size of the UAV rotor guardrail can be flexibly adjusted to ensure effective protection for rotors of different sizes. The arc-shaped guardrail 10 is arranged on the connecting mechanism 7 to directly wrap and protect the UAV rotor to prevent it from being impacted or damaged during flight or transportation, thereby improving the safety and service life of the UAV.

[0040] To sum up, the UAV rotor guard of the present invention realizes all-round, flexible and effective protection of the UAV rotor and its arm through the comprehensive application of the arc-shaped clamping plate 4, the angle adjustment mechanism 8, the connecting mechanism 7 and the arc-shaped guard frame 10, thereby improving the stability and safety of the UAV and having good versatility and adaptability.

[0041] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The embodiments and features therein may be arbitrarily combined unless they conflict. The scope of protection of the present invention shall be the technical solutions described in the claims, including equivalent alternatives to the technical features of the technical solutions described in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A UAV rotor guard, characterized in that: The invention comprises a mounting seat (1), a positive and negative threaded screw (2) rotatably mounted on the mounting seat (1), two sets of threaded sections of the positive and negative threaded screw (2) are provided with sliding plates (3), the sliding plates (3) are provided with threaded holes matching the positive and negative threaded screw (2), a limiting rod (5) parallel to the positive and negative threaded screw (2) is provided on the mounting seat (1), a sliding hole corresponding to the limiting rod (5) is provided on the sliding plate (3), an arc-shaped clamping plate (4) is provided on the sliding plate (3), the two sets of arc-shaped clamping plates (4) clamp and fix the arm of the UAV, a first knob (6) is provided at one end of the positive and negative threaded screw (2), connecting mechanisms (7) are provided on both sides of the mounting seat (1), and the connecting mechanisms (7) are connected to the arc-shaped guard frame (10).

2. The UAV rotor guard according to claim 1, characterized in that: The connecting mechanism (7) includes a sliding sleeve (701), the inner wall of the sliding sleeve (701) is provided with at least one set of sliding grooves (702), a threaded sleeve (703) is arranged in the sliding sleeve (701), a sliding block (704) that cooperates with the sliding grooves (702) is provided on the outer side of the threaded sleeve (703), an inner wall of the threaded sleeve (703) is provided with an internal thread, a rotating rod (711) is provided in the sliding sleeve (701), and one end of the rotating rod (711) is rotatably mounted. A screw rod (710) is provided at the other end of the sliding sleeve (701), and a through hole for the rotating rod (711) to pass through is provided at the end of the threaded sleeve (703). The screw rod (710) cooperates with the internal thread of the inner wall of the threaded sleeve (703). A driving mechanism for rotating the rotating rod (711) is provided on the sliding sleeve (701). A connecting rod (705) is provided at the lower end of the threaded sleeve (703), and the connecting rod (705) is connected to the arc-shaped guard frame (10).

3. The UAV rotor guard according to claim 2, characterized in that: The driving mechanism comprises a driving shaft (706) rotatably mounted on the side wall of the sliding sleeve (701), a driving bevel gear (707) being provided on the driving shaft (706), a driven bevel gear (708) meshing with the driving bevel gear (707) being provided on the rotating rod (711), and a third knob (709) being provided at one end of the driving shaft (706).

4. The UAV rotor guard according to claim 2, characterized in that: The connecting mechanism (7) is connected to the mounting base (1) via an angle adjustment mechanism (8), each set of angle adjustment mechanisms (8) comprises two sets of mounting plates (801) arranged on one side of the mounting base (1), the worm (802) is rotatably mounted between the two sets of mounting plates (801), a hinge seat (807) is provided on one side of the mounting base (1), a rotating shaft (803) is rotatably mounted on the hinge seat (807), a worm wheel (804) is fixed on the rotating shaft (803), the worm wheel (804) is meshed with the worm (802), the rotating shaft (803) is connected to the connecting mechanism (7) via a rotating plate (805), and a second knob (806) is provided at one end of the worm (802).

5. The UAV rotor guard according to claim 2, characterized in that: The connecting rod (705) is connected to the arc-shaped guard frame (10) via a connecting seat (9). The connecting seat (9) is arranged on the arc-shaped guard frame (10). A slot (901) is provided on one side of the connecting seat (9). The end of the connecting rod (705) is inserted into the slot (901) and then connected to the connecting seat (9) via a bolt (11).

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