Unmanned aerial vehicle transmission mechanism and unmanned aerial vehicle

By using the support rod limit and buffer design of the drone transmission mechanism, the problem of drones tipping over on uneven ground in the field is solved, achieving stable landing and reducing wind resistance.

CN116692063BActive Publication Date: 2026-03-27SHENZHEN DEEPSEA LNNOVATIONS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-18
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing drones are prone to tipping over when landing on uneven ground in the wild, which can damage the rotors or sensors, affecting their use and flight.

Method used

A drone transmission mechanism was designed, including a support tube, a support rod, a limiting mechanism, and a transmission mechanism. Through the engagement of pistons, hoses, and gears, the support rod is limited and buffered to ensure stable landing of the drone on uneven ground. The support tube is folded through a rotating shaft and gear system to reduce wind resistance and space occupation.

Benefits of technology

It effectively prevents drones from tipping over on uneven ground, protects the rotors and sensors, improves landing stability, and reduces wind resistance and storage space during flight.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of unmanned vehicle transmission mechanism, including shell;Two sides of shell are symmetrically provided with support tube along center line, support tube is connected with shell by mounting block on two sides, support tube is slidably provided with support rod in, the inner wall top of support tube is fixedly connected with fixed rod, the inner wall of support rod is elastically connected with the end of fixed rod away from shell, the bottom of support rod is fixedly provided with first horizontal plate, the bottom of first horizontal plate is slidably provided with piston, shell is provided with transmission mechanism corresponding with support tube cooperation, transmission mechanism is connected with piston by hose transmission, support tube is provided with limit mechanism relative to the movement of support rod.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle transmission mechanism and unmanned aerial vehicle. BACKGROUND

[0002] An unmanned aerial vehicle, referred to as a "drone", is a pilotless aircraft that is controlled by radio remote control equipment and self-provided program control devices, or is completely or intermittently operated by a vehicle-mounted computer. The application of unmanned aerial vehicles in aerial photography, agriculture, plant protection, micro-selfie, express delivery, disaster rescue, observation of wild animals, monitoring of infectious diseases, surveying and mapping, news reporting, power patrol, disaster relief, film and television shooting, and the like greatly expands the purposes of unmanned aerial vehicles themselves.

[0003] Chinese Patent Publication No. CN115610643A discloses an unmanned aerial vehicle shockproof landing gear, a shock absorbing leg is rotatably connected below the fixed frame, an installation box is fixedly connected to the middle of the lower part of the fixed frame, a shockproof mechanism is movably connected inside the installation box, a connecting plate is fixedly connected to the top of the shockproof mechanism and penetrates through the fixed frame, and an installation plate is elastically connected above the connecting plate.

[0004] The bottom of the existing unmanned aerial vehicle is provided with a landing gear that helps take off and land. If the landing gear in the above-mentioned scheme is used, when the unmanned aerial vehicle lands, especially when it is used in the wild, the landing position is not flat due to the uneven land in the wild, and the unmanned aerial vehicle will generate a large impact force when it lands, which can easily cause the unmanned aerial vehicle to tip over, thereby possibly causing damage to the rotors of the unmanned aerial vehicle or the sensors and cameras carried by the unmanned aerial vehicle, thereby affecting subsequent use and subsequent flight, and causing great loss.

[0005] Therefore, it is necessary to provide an unmanned aerial vehicle transmission mechanism and unmanned aerial vehicle to solve the above technical problems. SUMMARY

[0006] The purpose of the present application is to provide an unmanned aerial vehicle transmission mechanism and unmanned aerial vehicle to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an unmanned aerial vehicle transmission mechanism, comprising a shell; the two sides of the shell are symmetrically provided with support pipes along the center line, the two sides of the support pipe are connected with the shell through mounting blocks, a support rod is slidably arranged in the support pipe, a fixed rod is fixedly connected to the top of the inner wall of the support pipe, the end of the fixed rod away from the shell is elastically connected with the inner wall of the support rod, a first horizontal plate is fixedly arranged at the bottom end of the support rod, a piston is slidably arranged at the bottom of the first horizontal plate, a transmission mechanism corresponding to the support pipe is arranged in the shell, the transmission mechanism and the piston are connected through a hose, and a limiting mechanism moving relative to the support rod is arranged on the support pipe.

[0008] As a further scheme of the present application: the limiting mechanism comprises a limiting plate; the support pipe is provided with a matching groove at one end close to the mounting block, the top end of the limiting plate is fixedly connected with a first toothed plate, the side of the limiting plate close to the shell is fixedly connected with a limiting column, the end of the limiting column away from the limiting plate is slidably inserted into the side wall of the support pipe, the first toothed plate is slidably connected with the matching groove, the matching groove is rotatably connected with a first gear wheel engaged with the first toothed plate, and the first gear wheel is further drivingly connected with the transmission mechanism, and the support rod is provided with a limiting hole corresponding to the limiting column.

[0009] As a further scheme of the present application: the transmission mechanism comprises two groups of square pipes; the opposite ends of the two groups of square pipes are fixedly connected with connecting blocks, the square pipes are elastically connected with transmission plates, the ends of the transmission plates away from the connecting blocks are provided with second toothed plates matched with the first gear wheels, the connecting blocks are elastically connected with driving blocks, the distal end of the hose away from the first horizontal plate penetrates through the top end of the connecting block and is fixedly connected, and the end of the transmission plate away from the second toothed plate is slidably inserted into the connecting block and is in sliding fit with the bottom end of the driving block.

[0010] As a further scheme of the present application: the square pipes and the connecting blocks are arranged in the shell, the ends of the square pipes away from the connecting blocks are flush with the outer side wall of the shell and correspond to the positions of the matching grooves, and the second toothed plates are slidably matched with the matching grooves.

[0011] As a further scheme of the present application: the shell is provided with a rotating shaft along the center symmetry, the two ends of the rotating shaft are provided with second gear wheels, the second gear wheels correspond to the positions of the top ends of the support pipes and protrude from the side wall of the shell, the top end of the support pipe is provided with a gear groove engaged with the second gear wheel, and the rotating shaft is rotatably connected with the mounting block.

[0012] As a further scheme of the present application: the side of the support pipe close to the limiting plate is provided with a receiving groove slidably matched with the limiting plate.

[0013] As a further scheme of the present application: the bottom of the first horizontal plate is slidably embedded with second horizontal plates along the center symmetry, the opposite ends of the two groups of second horizontal plates are elastically connected with the inner wall of the first horizontal plate, the opposite ends of the two groups of second horizontal plates are fixedly connected with pull ropes, and the ends of the pull ropes away from the second horizontal plates are provided with winding discs.

[0014] As a further scheme of the present application: the winding disc is drivingly connected with the rotating shaft through a belt, the winding disc is arranged in the shell, the pull rope is slidably penetrated through the first horizontal plate and the side wall of the shell, the outer side of the pull rope is sleeved with a sleeve pipe, the end of the sleeve pipe away from the shell is fixedly connected on the side wall of the first horizontal plate, and the other end of the sleeve pipe is fixedly connected with the bottom of the shell.

[0015] The unmanned plane further comprises a rotor, a power mechanism and a control mechanism, the rotor is arranged on the shell, the power mechanism and the control mechanism are arranged in the shell, the power mechanism is in transmission connection with the rotor and is used for driving the rotor to rotate, and the control mechanism controls the power mechanism to output power.

[0016] Compared with the prior art, the unmanned plane has the advantages that when the unmanned plane lands, the two groups of movable supporting rods and the first horizontal plates are in contact with the ground, the piston is moved to retract into the first horizontal plate, the second tooth plate is moved to extend into the matching groove to cooperate with the first gear through the cooperation of the hose and the transmission mechanism, the first tooth plate drives the limiting column to extend into the limiting groove through the limiting plate to limit the relative position of the supporting pipe and the supporting rod, the unmanned plane can stably land on flat or uneven ground, the risk of the unmanned plane falling due to uneven ground is avoided, the supporting pipe can be rotated and folded relative to the shell through the cooperation of the rotating shaft, the second gear and the tooth groove, and the unmanned plane can reduce the space occupied by the supporting pipe and the supporting rod when being stored. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front three-dimensional structure schematic diagram of the present application.

[0018] Figure 2 It is a structure schematic diagram of the mounting block in the present application.

[0019] Figure 3 It is a structure schematic diagram of the first horizontal plate in the present application.

[0020] Figure 4 It is a structure schematic diagram of the second horizontal plate in the present application.

[0021] Figure 5 It is a structure schematic diagram of the limiting mechanism in the present application.

[0022] Figure 6 It is a structure schematic diagram of the transmission mechanism in the present application.

[0023] Figure 7 It is a structure schematic diagram of the winding disc in the present application.

[0024] Figure 8 It is a structure schematic diagram of the supporting pipe in the present application.

[0025] Figure 9 It is a structure schematic diagram of the present application Figure 5 It is an enlarged schematic diagram of the structure at A in the present application.

[0026] Figure 10 It is a structure schematic diagram of the present applicationFigure 5 Structure enlarged schematic view at middle B.

[0027] In the figure: 1, shell; 2, support pipe; 21, limiting plate; 22, limiting column; 23, first gear; 24, first toothed plate; 25, tooth groove; 26, storage groove; 3, support rod; 31, limiting hole; 32, fixed rod; 4, first cross plate; 41, second cross plate; 42, sleeve; 43, pull rope; 44, winding disc; 5, rotating shaft; 6, mounting block; 7, transmission mechanism; 71, square pipe; 72, transmission plate; 73, connecting block; 74, second toothed plate; 75, driving block; 8, hose; 9, piston; 10, matching groove. DETAILED DESCRIPTION

[0028] Please refer to Figures 1-3The embodiment of the application discloses a transmission mechanism of a UAV, which comprises a shell 1, preferably, support pipes 2 are symmetrically arranged on both sides of the shell 1 along a center line, mounting blocks 6 are arranged on both sides of the support pipes 2, the mounting blocks 6 are fixedly connected with side walls of the shell 1, support rods 3 are slidably arranged in the support pipes 2, fixed rods 32 are fixedly connected with top inner walls of the support pipes 2, one ends of the fixed rods 32 away from the shell 1 are elastically connected with inner walls of the support rods 3 through first springs, first horizontal plates 4 are fixedly arranged at bottom ends of the support rods 3, the shell 1 is supported through the support pipes 2, the support rods 3 and the first horizontal plates 4, so that take-off and landing of the UAV are facilitated, a piston 9 is slidably arranged at the bottom of the first horizontal plate 4, the piston 9 is sealingly and slidably connected with an inner wall of the first horizontal plate 4, a transmission mechanism 7 corresponding to the support pipes 2 is arranged in the shell 1, the transmission mechanism 7 is drivingly connected with the piston 9 through a hose 8, one end of the hose 8 penetrates through a side wall of the first horizontal plate 4 and is in communication with the piston 9 and the inner wall of the first horizontal plate 4, the other end of the hose 8 penetrates through the mounting blocks 6 and the side wall of the shell 1 and is in communication with the transmission mechanism 7, the hose 8 is fixed on the first horizontal plate 4 and the support pipes 2 through buckles, so that stability of the hose 8 is ensured, a limiting mechanism moving relative to the support rods 3 is arranged on the support pipes 2, when the piston 9 moves, the transmission mechanism 7 moves through the hose 8 and drives the limiting mechanism to move relative to the support rods 3, when the UAV lands, the first horizontal plates 4 are in contact with the ground and support the shell 1, the support pipes 2 and the support rods 3 move relative to each other when the UAV lands, the impact force generated by the UAV is buffered through cooperation of the fixed rods 32 and the first springs, so that stability of the UAV is improved, if the UAV lands on a rough bottom surface, a group of the first horizontal plates 4 are first in contact with the ground, then the pistons 9 are contracted in the first horizontal plates 4 under stress, then the support rods 3 move relative to the support pipes 2, when two groups of the first horizontal plates 4 are in contact with the ground and the two groups of the pistons 9 are pressed and contracted in the first horizontal plates 4, the transmission mechanism 7 moves relative to the support pipes 2 through the hose 8 and drives the limiting mechanism to limit relative positions between the support pipes 2 and the support rods 3, so that stable landing of the UAV is ensured and the risk of the UAV toppling when landing on the rough bottom surface is avoided.

[0029] Please refer to Figure 5 , Figures 9-10The limiting mechanism comprises a limiting plate 21; the support pipe 2 is provided with a matching groove 10 at one end close to the mounting block 6, the top end of the limiting plate 21 is fixedly connected with a first toothed plate 24, the side of the limiting plate 21 close to the shell 1 is fixedly connected with a limiting column 22, the limiting column 22 is arranged in multiple groups along the vertical center line of the limiting plate 21, and the end of the limiting column 22 away from the limiting plate 21 slides into the side wall of the support pipe 2, the first toothed plate 24 is slidably connected with the matching groove 10, the matching groove 10 is rotatably connected with a first gear 23 engaged with the first toothed plate 24, and the first gear 23 is further in transmission cooperation with the transmission mechanism 7, the support rod 3 is provided with a limiting hole 31 corresponding to the sliding adaptation of the limiting column 22, preferably, the end of the limiting column 22 away from the limiting plate 21 is provided with a rounded corner, which is more conducive to the extension of the limiting column 22 into the limiting hole 31, the number of the limiting column 22 and the limiting hole 31 is the same, and the limiting column 22 and the limiting hole 31 can be relatively slidably adapted after the support rod 3 slides by any distance relative to the support pipe 2, the distance between one limiting hole 31 of the support rod 3 close to the support pipe 2 and the top of the support rod 3 is less than the distance between the adjacent two limiting columns 22, so that after the support rod 3 relatively slides in the support pipe 2, the limiting column 22 can correspondingly extend into the limiting hole 31 to limit the relative position of the support pipe 2 and the support rod 3, and the two ends of the first gear 23 are rotatably connected with the side wall of the support pipe 2 through torsional springs, so that in the initial state, the first toothed plate 24 is protruded from the side wall of the support pipe 2 at the end away from the support pipe 2 through the torsional springs, thereby the end of the limiting column 22 away from the limiting plate 21 is flush with the inner wall of the support pipe 2, so as not to affect the relative sliding of the support pipe 2 and the support rod 3.

[0030] In specific use, when the unmanned aerial vehicle does not land, the piston 9 protrudes from the bottom of the first horizontal plate 4, and the support rod 3 is away from the support pipe 2 under the action of the first spring; when the unmanned aerial vehicle lands, and the bottom surface is uneven, a group of first horizontal plates 4 first contact the ground and relatively move the piston 9 to retract in the first horizontal plate 4, and the gas between the piston 9 and the inner wall of the first horizontal plate 4 enters the transmission mechanism 7 through the gas hose 8, at this time the transmission mechanism 7 is driven to move to a position engaged with the first gear 23, then a group of support rods 3 relatively move in the support pipe 2, so that the first spring is compressed, and the hose 8 is flexible, so it will bend, but will not affect use, when another group of first horizontal plates 4 contact the ground and relatively move another group of pistons 9 to retract in another group of first horizontal plates 4, the gas between them is transported to the transmission mechanism 7 through the hose 8, so that the first gear 23 rotates, the rotation of the first gear 23 drives the first toothed plate 24 to move relative to the shell 1, the movement of the first toothed plate 24 drives the limiting plate 21 to move, the movement of the limiting plate 21 makes the limiting column 22 protrude into the support pipe 2, and at the same time extend into the limiting hole 31, to limit the position between the support pipe 2 and the support rod 3, so as to make the unmanned aerial vehicle land stably.

[0031] Please refer to Figures 1-5 、 Figure 9 Preferably, the transmission mechanism 7 comprises two groups of square tubes 71; the opposite ends of the two groups of square tubes 71 are fixedly connected with connecting blocks 73, the square tubes 71 and the connecting blocks 73 are communicated, the square tubes 71 are elastically connected with transmission plates 72 through second springs, one end of the transmission plate 72 away from the connecting block 73 is fixedly connected with a second tooth plate 74 which is engaged with the first gear 23 in the limiting mechanism, the second tooth plate 74 is fixedly connected to the upper half of the transmission plate 72, and the teeth on the second tooth plate 74 are towards, the size of the second tooth plate 74 and the cooperating groove 10 are slidingly adapted, when the second tooth plate 74 extends into the cooperating groove 10, the second tooth plate 74 can limit the relative position between the support tube 2 and the shell 1, avoiding the possibility of rotation of the support tube 2, the driving block 75 is sealingly and slidingly connected in the connecting block 73, the third spring is arranged between the top end of the driving block 75 and the inner wall top end of the connecting block 73, in the initial state, the driving block 75 is away from the end of the third spring which is flush with the top end of the connecting block 73, the driving block 75 is arranged above the connecting block 73 and the square tube 71, the end of the hose 8 away from the first horizontal plate 4 penetrates the top end of the connecting block 73 and is fixedly connected, the air cavity is formed between the piston 9 and the first horizontal plate 4, and the air cavity, the hose 8 and the connecting block 73 are communicated, one end of the transmission plate 72 away from the second tooth plate 74 extends into the connecting block 73, the end of the driving block 75 away from the third spring is a 'V' shaped two inclined surface structure, and the end of the transmission plate 72 away from the second tooth plate 74 is slidingly attached to the inclined surface of the driving block 75, the square tube 71 and the connecting block 73 are arranged in the shell 1, the end of the square tube 71 away from the connecting block 73 is flush with the outside of the shell 1, and corresponds to the position of the cooperating groove 10.

[0032] Specific use, when the first horizontal plate 4 is not in contact with the ground, the piston 9 protrudes the first horizontal plate 4, the transmission plate 72 far away from the second tooth plate 74 one end into the connecting block 73 with the drive block 75 bottom end fit, the second tooth plate 74 far away from the transmission plate 72 one end with square tube 71 far away from the connecting block 73 one end flush; When a group of first horizontal plate 4 is in contact with the ground, the piston 9 moves in the first horizontal plate 4, so that the gas in the cavity through the hose 8 into the connecting block 73, so that the drive block 75 in the connecting block 73 moves a distance down, through the slope so that the transmission plate 72 relative to the matching groove 10 movement, transmission plate 72 movement so that the second tooth plate 74 moves into the matching groove 10 and with the first gear 23 meshing, the second tooth plate 74 into the matching groove 10, so that the support pipe 2 under stress will not appear rotating problem, at this time due to the uneven ground will make a group of support rod 3 relative to the support pipe 2 in sliding, until another group of first horizontal plate 4 and make the piston 9 moves in the first horizontal plate 4, its corresponding gas cavity through the hose 8 into the connecting block 73, so that the drive block 75 continues to move down, in turn make the transmission plate 72, the second tooth plate 74 relative to the direction of the first gear 23 movement, through the second tooth plate 74 so that the first gear 23 rotation, the first gear 23 rotation makes the first tooth plate 24 relative to the square tube 71 movement, so that the limiting plate 21 makes the limiting column 22 relative to the support rod 3 movement, so that the limiting column 22 into the limiting hole 31 in the support pipe 2, support rod 3 relative position limiting, so as to ensure that the unmanned aerial vehicle even landing on uneven ground can be stable landing, avoid its appear dump caused by damage or its installation on the camera, sensor and other high value equipment cause damage.

[0033] Please refer to Figures 1-2 , Figures 7-9, preferably, the outer shell 1 is provided with a rotating shaft 5 in the center symmetry, the rotating shaft 5 is in transmission connection with the driving motor provided in the outer shell 1 (not shown in the figure), the two ends of the rotating shaft 5 are provided with second gears, the second gears protrude from the side wall of the outer shell 1, the positions of the second gears correspond to the positions of the top ends of the support pipe 2, the top end of the support pipe 2 is a semicircular structure, the top end of the support pipe 2 is provided with a tooth groove 25 which is engaged with the second gear, the rotating shaft 5 is in rotation connection with the mounting block 6, in use, in the initial state, the end of the support pipe 2 away from the mounting block 6 faces the bottom of the outer shell 1, cooperates with the support rod 3 and the first horizontal plate 4 to form support for the outer shell 1, when the unmanned aerial vehicle takes off or needs to be stored, the corresponding driving motor of the rotating shaft 5 is started, so that the rotating shaft 5 rotates to drive the support pipe 2 to rotate through the engagement of the second gear and the tooth groove 25 under the rotation limiting of the mounting block 6, the support pipe 2 rotates upward by 180°, so that the support rod 3 and the first horizontal plate 4 rotate by 180° to be attached to the side wall of the outer shell 1, thereby reducing the occupied space of the outer shell 1, the support pipe 2, the support rod 3 and the first horizontal plate 4 as a whole, thereby facilitating storage, secondly, in the process of using the unmanned aerial vehicle, the support pipe 2, the support rod 3 and the first horizontal plate 4 are folded to be attached to the side wall of the outer shell 1, thereby reducing the air flow resistance when the unmanned aerial vehicle flies, especially when flying at low altitude in the wild jungle, avoiding the support pipe 2, the support rod 3 and the first horizontal plate 4 not being folded to be easily contacted with the vegetation to cause winding and other influences on the flight of the unmanned aerial vehicle; when the unmanned aerial vehicle needs to land, the driving motor is started to drive the rotating shaft 5 to rotate, so that the support pipe 2 rotates downward by 180° to reset through the engagement of the second gear and the tooth groove 25, thereby making the support rod 3 and the first horizontal plate 4 rotate to reset, so as to form support for the outer shell 1, thereby facilitating the stable landing of the unmanned aerial vehicle as a whole.

[0034] Further, the side of the support pipe 2 close to the limiting plate 21 is provided with a storage groove 26 which is slidably matched with the limiting plate 21, the storage groove 26 stores the limiting plate 21 when the support pipe 2 is folded to be attached to the side wall of the outer shell 1, so that the limiting plate 21 is squeezed and shrunk in the storage groove 26 when the support pipe 2 rotates to be attached to the side wall of the outer shell 1, thereby not affecting the rotation of the support pipe 2 to be attached to the side wall of the outer shell 1, completing effective folding work, in this process, the first tooth plate 24 moves relative to the matching groove 10, so that the first gear 23 rotates, the rotation of the first gear 23 makes the torsional spring between the first gear 23 and the first horizontal plate 4 shrink under stress, and when the support pipe 2 rotates to reset to support the outer shell 1, the torsional spring resets to make the first gear 23 rotate, the rotation of the first gear 23 makes the first tooth plate 24 move to extend out of the matching groove 10, thereby making the limiting plate 21 separate from the storage groove 26.

[0035] Please refer to Figures 4-7, preferably, the bottom of the first horizontal plate 4 is slidably embedded with a second horizontal plate 41, the bottom of the second horizontal plate 41 is flush with the bottom of the first horizontal plate 4, and the second horizontal plate 41 can slide out of the end of the first horizontal plate 4, when the second horizontal plate 41 extends out of the first horizontal plate 4, the contact area of the second horizontal plate 41, the first horizontal plate 4 and the ground is enlarged, so that the supporting surface of the shell 1 is larger and more stable, the opposite ends of the two groups of second horizontal plates 41 are elastically and slidably connected to the inner wall of the first horizontal plate 4 through the fourth springs, so that the second horizontal plates 41 can automatically extend out of the first horizontal plate 4 without being limited, the opposite ends of the two groups of second horizontal plates 41 are fixedly connected with pull ropes 43, the ends of the pull ropes 43 away from the second horizontal plates 41 slide through the side walls of the first horizontal plate 4 and the shell 1, the ends of the pull ropes 43 away from the second horizontal plates 41 are provided with winding discs 44, the winding discs 44 are drivingly connected with the rotating shaft 5 through a belt, and the winding discs 44 are arranged in the shell 1, in another way, the winding discs 44 can also be driven by a separate motor, the outer sides of the two groups of pull ropes 43 are sleeved with sleeves 42, the sleeves 42 are flexible and telescopic, so as to protect the pull ropes 43 and fold the two groups of pull ropes 43, the end of the sleeve 42 away from the shell 1 is fixedly connected to the side wall of the first horizontal plate 4, and the other end of the sleeve 42 is fixedly connected to the bottom of the shell 1, in specific use, when the first horizontal plate 4 supports the shell 1, the second horizontal plates 41 extend out of the ends of the first horizontal plate 4, and the pull ropes 43 are in a tensioned state; when the supporting pipe 2 is folded upward to be attached to the side wall of the shell 1, the rotating shaft 5 rotates to drive the winding disc 44 to rotate and wind the pull ropes 43, the pull ropes 43 pull the second horizontal plates 41 to retract in the first horizontal plate 4, so as to avoid that the second horizontal plates 41 occupy a large space and affect the storage or flight of the unmanned aerial vehicle when extending out of the first horizontal plate 4, when the supporting pipe 2 is rotated downward to reset the support, the rotating shaft 5 rotates to drive the winding disc 44 to rotate, so that the winding disc 44 unwinds the pull ropes 43, and then the second horizontal plates 41 extend out of the first horizontal plate 4 under the action of the fourth springs.

[0036] An unmanned aerial vehicle comprises any one of the above-mentioned unmanned aerial vehicle transmission mechanisms, and further comprises rotors, a power mechanism and a control mechanism; the rotors are arranged in an array on the shell 1, the power mechanism and the control mechanism are arranged in the shell 1, the power mechanism is drivingly connected with the rotors and is used to drive the rotors to rotate, the control mechanism controls the power mechanism to output power, and other related unmanned aerial vehicle components, specifically, the power mechanism comprises a motor drivingly connected with the rotors and a power supply providing power for the motor; the control mechanism comprises a main board and a chip controlling the power mechanism to output power, and further comprises an antenna receiving and outputting signals with the outside, and the main board is electrically connected with the chip and the antenna.

Claims

1. A drone transmission mechanism comprising a housing; characterized in that, Both sides of the shell are symmetrically provided with support pipes along the center line, both sides of the support pipe are connected with the shell through mounting blocks, a support rod is slidably arranged in the support pipe, a fixed rod is fixedly connected to the inner wall top of the support pipe, the end of the fixed rod away from the shell is elastically connected with the inner wall of the support rod, a first horizontal plate is fixedly arranged at the bottom end of the support rod, a piston is slidably arranged at the bottom of the first horizontal plate, a transmission mechanism corresponding to the support pipe is arranged in the shell, the transmission mechanism and the piston are connected through a hose transmission, a limiting mechanism for moving relative to the support rod is arranged on the support pipe; The limiting mechanism comprises a limiting plate, a first gear plate is fixedly connected to the top end of the limiting plate, a limiting column is fixedly connected to the side of the limiting plate close to the shell, the end of the limiting column away from the limiting plate slidably extends into the side wall of the support pipe, the first gear plate is slidably connected with the matching groove, a first gear wheel engaged with the first gear plate is rotatably connected in the matching groove, and the first gear wheel is also in transmission cooperation with the transmission mechanism, a limiting hole corresponding to the sliding adaptation of the limiting column is arranged on the support rod; The transmission mechanism comprises two groups of square pipes, the opposite ends of the two groups of square pipes are fixedly connected with connecting blocks, a transmission plate is elastically connected in the square pipe, a second gear plate matched with the first gear wheel is arranged at the end of the transmission plate away from the connecting block, a driving block is elastically connected in the connecting block, the end of the hose away from the first horizontal plate penetrates through the top end of the connecting block and is fixedly connected, the end of the transmission plate away from the second gear plate extends into the connecting block and is slidably attached to the bottom end of the driving block.

2. The unmanned aerial vehicle transmission mechanism of claim 1, wherein, The square pipe and the connecting block are arranged in the shell, the end of the square pipe away from the connecting block is flush with the outer side wall of the shell and corresponds to the position of the matching groove, and the second gear plate is slidably adapted to the matching groove.

3. The transmission mechanism of claim 1, wherein, A rotating shaft is symmetrically arranged in the shell along the center, second gear wheels are arranged at the two ends of the rotating shaft, the second gear wheels correspond to the top end position of the support pipe and protrude from the side wall of the shell, a gear groove engaged with the second gear wheel is arranged at the top end of the support pipe, and the rotating shaft is rotatably connected with the mounting block.

4. The unmanned aerial vehicle transmission mechanism of claim 1, wherein, A receiving groove slidably adapted to the limiting plate is arranged on the side of the support pipe close to the limiting plate.

5. The transmission mechanism of claim 3, wherein, Second horizontal plates are symmetrically and slidably embedded at the bottom of the first horizontal plate, the opposite ends of the two groups of second horizontal plates are elastically connected with the inner wall of the first horizontal plate, pulling ropes are fixedly connected to the opposite ends of the two groups of second horizontal plates, and winding discs are arranged at the ends of the pulling ropes away from the second horizontal plates.

6. The unmanned aerial vehicle transmission mechanism of claim 5, wherein, The winding discs are transmission connected with the rotating shaft through a belt, the winding discs are arranged in the shell, the pulling ropes slidably penetrate through the first horizontal plate and the side wall of the shell, a sleeve is sleeved on the outside of the pulling rope, the end of the sleeve away from the shell is fixedly connected to the side wall of the first horizontal plate, and the other end of the sleeve is fixedly connected with the bottom of the shell.

7. A drone, characterized in that, The unmanned aerial vehicle transmission mechanism comprises a rotor, a power mechanism and a control mechanism, the rotor array is arranged on the shell, the power mechanism and the control mechanism are arranged in the shell, the power mechanism is in transmission connection with the rotor and is used for driving the rotor to rotate, and the control mechanism controls the power mechanism to output power.

Citation Information

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