Arm of unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle arm which comprises a connecting arm, a rotating rod is rotatably connected in the connecting arm in a limited mode, a gear is fixedly connected to the outer side of the rotating rod in a sleeved mode, two racks are arranged on the two sides of the gear in a meshed mode, and clamping blocks are fixedly connected to one ends, away from each other, of the two racks. A worm wheel is fixedly connected to the outer side of the rotating rod and located on the outer side of the lower portion of the gear in a sleeving mode, a worm for adjusting rotation of the worm wheel is connected to the outer side of the worm wheel in a meshed mode, and rotation adjustment of the rotating rod and the gear arranged on the outer side of the rotating rod is achieved through meshed connection of the worm for rotation adjustment and the worm wheel; according to the unmanned aerial vehicle, the gear adjusted in a rotating mode is connected with the two racks in a meshed mode, then the two clamping blocks are moved and adjusted to be far away from each other through the two racks, the two clamping blocks adjusted to be far away from each other are connected with the external unmanned aerial vehicle, and rapid connection with the external unmanned aerial vehicle can be stably achieved through the arrangement of the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a machine arm of a unmanned aerial vehicle. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device. The arm-mounted drone is a new type of drone designed with the vulture as the prototype. It can imitate the vulture's aerial hunting. The mechanical arm installed below it, similar to an eagle's claw, can grab objects outside the drone's flight path. The arm structure is an important component of the drone;

[0003] For example, a drone arm structure disclosed in the utility model with authorization announcement number CN219134571U includes a connecting arm, an adjusting rod is fixedly installed on the front wall of the connecting arm, an extension arm is provided on the front side of the connecting arm and is threadedly connected to the adjusting rod, a driving motor is provided on the top of the connecting arm, a plurality of circumferentially distributed driving blades are fixedly installed on the output end of the driving motor, a mounting rod is fixedly installed on the bottom wall of the driving motor, a spherical connecting ball is rotatably installed on the inner side wall of the mounting rod, a positioning rod fixedly installed on the top wall of the extension arm is fixedly installed on the bottom wall of the connecting ball, and in actual use, the angle of the mounting rod can be adjusted according to actual conditions, so that when the driving blades rotate with the output end of the driving motor, better lift can be provided, which is convenient for driving the drone to take off, thereby achieving the effect of improving the scope of use of the structure.

[0004] When the device is connected to the main body of an external drone, the elasticity of the return spring pushes the two pressure plates to move away from each other, and then the two positioning blocks can be snapped into the inside of the external drone to achieve connection. However, the return spring has a certain deformation ability and is prone to deformation during long-term use, which leads to a weakening of the elastic force, thereby affecting the stability of the connection between the two positioning blocks and the external drone. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides an arm of an unmanned aerial vehicle, which can solve the technical problem that the return spring has a certain deformation ability, is prone to deformation during long-term use, and thus causes the elastic force to weaken, thereby affecting the stability of the connection between the two positioning blocks and the external unmanned aerial vehicle.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an arm of an unmanned aerial vehicle, including a connecting arm, a rotating rod is connected to the connecting arm for limited rotation inside, a gear is fixedly sleeved on the outside of the rotating rod, two racks are meshed on both sides of the gear, one end of the two racks and the ends away from each other are fixedly connected to a block, a worm gear is fixedly sleeved on the outside of the rotating rod and located below the gear, and a worm is meshed on the outside of the worm gear for rotationally adjusting the worm gear.

[0007] As a preferred technical solution of the utility model, two limit sliders are symmetrically fixedly provided at one end of the two racks and located in the connecting arm and are limitedly slidably connected to the connecting arm.

[0008] As a preferred technical solution of the utility model, a rotating shaft is fixedly provided at the central axis position of the worm, one end of the rotating shaft is movably passed through the side wall of the connecting arm and is connected to an adjusting button, and rough texture is provided on the outer side of the adjusting button to increase the friction between the hand and the adjusting button.

[0009] As a preferred technical solution of the utility model, a threaded adjustment rod is connected to one end of the connecting arm, an extension arm is connected to the outer threaded sleeve of the threaded adjustment rod, and a threaded connection groove is provided in the extension arm to be threadedly screwed with the threaded adjustment rod.

[0010] As a preferred technical solution of the utility model, a mounting rod is arranged above one end of the extension arm, the bottom wall of the mounting rod is movably connected with a connecting ball, a positioning rod is connected between the bottom end of the connecting ball and the extension arm, and the upper end of the mounting rod is connected with a driving fan blade.

[0011] As a preferred technical solution of the utility model, the mounting rod and the connecting ball are connected by fixing bolts.

[0012] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0013] The rotation adjustment of the worm is achieved through the coordination of the adjusting button and the rotating shaft, and the rotation adjustment of the rotating rod and the gear arranged on the outside of the rotating rod is achieved through the meshing connection between the rotationally adjusted worm and the worm wheel. The rotation adjustment gear is engaged with the two racks, and then the two racks are used to adjust the two blocks to move away from each other, so that the two blocks adjusted to move away from each other are connected to an external drone. The arrangement of this structure can achieve rapid connection with an external drone in a relatively stable manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the local structure of the utility model;

[0016] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0018] Among them: 1. connecting arm; 2. clamping block; 3. rack; 4. gear; 5. rotating rod; 6. worm gear; 7. worm; 8. rotating shaft; 9. adjusting button; 10. limiting slider; 11. threaded adjusting rod; 12. extension arm; 13. threaded connecting groove; 14. positioning rod; 15. mounting rod; 16. connecting ball; 17. driving fan blade. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] Example

[0021] Please refer to Figure 1-4 As shown, the utility model provides an arm of a drone, wherein a rotating rod 5 is connected to the connecting arm 1 for limited rotation, and then a gear 4 is fixedly sleeved and connected to the outside of the rotating rod 5, and then two racks 3 are meshed and arranged on both sides of the gear 4, and a clamping block 2 is fixedly connected to one end of the two racks 3 and the ends away from each other, and at the same time, two limiting sliders 10 are symmetrically fixedly arranged at one end of the two racks 3 and located in the connecting arm 1, and then a worm wheel 6 is fixedly sleeved and connected to the outside of the rotating rod 5 and located below the gear 4, and finally a worm 7 is meshed and connected to the outside of the worm wheel 6, and the worm 7 can be rotated and adjusted by the arrangement of the worm 7;

[0022] When the device is connected to an external drone, the worm 7 is firstly meshed with the worm wheel 6 by rotation, and the worm wheel 6 is driven to rotate. Then, the rotating rod 5 and the gear 4 sleeved on the outside of the rotating rod 5 are driven to rotate by the rotation of the worm wheel 6. The rotation of the gear 4 is meshed with the two racks 3, and then the two clamping blocks 2 are adjusted to move away from each other through the two racks 3, so that the two clamping blocks 2 adjusted to move away from each other are connected to the external drone;

[0023] As a further implementation of this embodiment, Figure 1-4As shown, a rotating shaft 8 is fixedly penetrated at the central axis position of the worm 7, and then an adjusting button 9 is connected to one end of the rotating shaft 8 after being movably penetrated through the side wall of the connecting arm 1, and then a rough texture is arranged on the outer side of the adjusting button 9, and the friction between the hand and the adjusting button 9 can be increased by setting the rough texture. At the same time, a threaded adjusting rod 11 is connected to one end of the connecting arm 1, and then an extension arm 12 is threadedly sleeved on the outer side of the threaded adjusting rod 11, and a threaded connecting groove 13 which is threadedly screwed with the threaded adjusting rod 11 is opened in the extension arm 12, and then a mounting rod 15 is arranged above one end of the extension arm 12, and a connecting ball 16 is movably connected to the bottom wall of the mounting rod 15 in a limited position, and a positioning rod 14 is connected between the bottom end of the connecting ball 16 and the extension arm 12, and a bolt is threadedly penetrated on the surface of the mounting rod 15, and one end of the bolt extends into the mounting rod 15, and then contacts and resists with the surface of the connecting ball 16, so as to realize the limited fixation of the connecting ball 16, and a driving fan blade 17 is connected to the upper end of the mounting rod 15;

[0024] Specific working principle:

[0025] When in use, the threaded adjustment rod 11 can be rotated to extend the length of the threaded adjustment rod 11 exposed from the extension arm 12, and the overall length of the device can be adjusted. Then, the mounting rod 15 can be rotated to adjust the angle of the mounting rod 15 and the driving blade 17 arranged at the upper end of the mounting rod 15. Then, the bolt threadedly connected to the outer wall of the rotating mounting rod 15 is adjusted so that one end of the bolt is against the surface of the connecting ball 16. Then, the mounting rod 15 and the driving blade 17 after the angle adjustment are limited and fixed. When the device is connected to an external drone, the worm 7 is first engaged with the worm gear 6 by rotating and adjusting, and the worm gear 6 is driven to rotate. Then, the rotating rod 5 and the gear 4 sleeved on the outside of the rotating rod 5 are driven to rotate by rotating and adjusting the worm gear 6. The rotating and adjusting gear 4 is engaged with the two racks 3, and then the two blocks 2 are moved away from each other by the two racks 3, so that the two blocks 2 adjusted away from each other are connected to the external drone. The setting of this structure can achieve a relatively stable quick connection with an external drone.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An arm of an unmanned aerial vehicle, comprising a connecting arm (1), characterized in that: The connecting arm (1) is internally limited and rotatably connected to a rotating rod (5), the rotating rod (5) is fixedly sleeved and connected to a gear (4) on the outside, two racks (3) are meshedly provided on both sides of the gear (4), one end of the two racks (3) and the ends away from each other are fixedly connected to a clamping block (2), the rotating rod (5) is externally fixedly sleeved and connected to a worm wheel (6) located below the gear (4), and the worm wheel (6) is meshedly connected to the outside with a worm (7) for adjusting the rotation of the worm wheel (6).

2. The drone arm according to claim 1, characterized in that: Two limit sliders (10) are symmetrically and fixedly provided at one end of the two racks (3) and located inside the connecting arm (1) and are connected to the connecting arm (1) in a limit sliding manner.

3. The drone arm according to claim 1, characterized in that: A rotating shaft (8) is fixedly inserted at the central axis of the worm (7), one end of the rotating shaft (8) is movably inserted through the side wall of the connecting arm (1) and connected to an adjusting button (9), and a rough texture is provided on the outer side of the adjusting button (9) to increase the friction between the hand and the adjusting button (9).

4. The drone arm according to claim 3, characterized in that: One end of the connecting arm (1) is connected to a threaded adjustment rod (11), the outer side of the threaded adjustment rod (11) is threadedly sleeved with an extension arm (12), and the extension arm (12) is provided with a threaded connection groove (13) threadedly engaged with the threaded adjustment rod (11).

5. The drone arm according to claim 4, characterized in that: A mounting rod (15) is arranged above one end of the extension arm (12); a connecting ball (16) is movably connected to the bottom wall of the mounting rod (15) in a limiting manner; a positioning rod (14) is connected between the bottom end of the connecting ball (16) and the extension arm (12); and a driving fan blade (17) is connected to the upper end of the mounting rod (15).

6. The drone arm according to claim 5, characterized in that: The mounting rod (15) and the connecting ball (16) are connected by fixing bolts.

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