CN112977841A

CN112977841A - Unmanned aerial vehicle

Info

Publication number: CN112977841A
Application number: CN202110304993.1A
Authority: CN
Inventors: 杨建青
Original assignee: Zhejiang Industry Polytechnic College
Current assignee: Hangzhou Zhonghui Tonghang Aviation Technology Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-06-18
Anticipated expiration: 2041-03-18
Also published as: CN112977841B

Abstract

The invention discloses an unmanned aerial vehicle which comprises a machine body and a driving device, wherein an upper cover assembly is arranged at the upper part of the machine body, a lower cover covers the lower part of the machine body, a supporting device is arranged at the lower part of the lower cover, connecting arms are outwards extended from four corners of the side surface of the machine body, and the driving device is hinged with the connecting arms. By arranging the parachute and the foldable driving device, the power-off and anti-falling function is realized, the folding parachute can be conveniently stored, the structure is simple, and the practicability is good.

Description

Unmanned aerial vehicle

Technical Field

The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle.

Background

The unmanned aerial vehicle is an unmanned aerial vehicle controlled by a radio remote control device or an onboard computer program control system. The small unmanned aerial vehicle has various functions such as photographing, transportation, rescue and illumination, and therefore the small unmanned aerial vehicle is developed in real life day by day, but the existing small unmanned aerial vehicle also has some disadvantages, one of which is that the unmanned aerial vehicle runs out of electric quantity or exceeds an induction range in the process of flying or wireless transmission signals are interrupted, so that the unmanned aerial vehicle falls off from the air and is damaged; another weak point lies in that current unmanned aerial vehicle accomodates inconveniently, need dismantle unmanned aerial vehicle when accomodating to reduce unmanned aerial vehicle's occupation space, it is more troublesome to dismantle, wastes time and energy, consequently urgently needs to improve foretell not enough department.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides an unmanned aerial vehicle which is provided with a parachute and a foldable driving device, so that the power-off and anti-falling functions are realized, the unmanned aerial vehicle can be conveniently stored, the structure is simple, and the practicability is good.

In order to achieve the purpose, the invention adopts the following technical scheme:

an unmanned aerial vehicle comprises a machine body and a driving device, wherein an upper cover assembly is arranged at the upper part of the machine body, a lower cover covers the lower part of the machine body, a supporting device is arranged at the lower part of the lower cover, connecting arms are outwards extended from four corners of the side surface of the machine body, and the driving device is hinged with the connecting arms;

the upper cover assembly comprises an upper cover covering the upper part of the machine body, the upper cover comprises a storage chamber and a first installation part, the opening of the storage chamber is upward, the storage chamber is positioned in the middle of the upper cover, a parachute is arranged in the storage chamber, the upper part of the storage chamber is covered with a flip, the upper part of the first installation part is covered with a switching part, the flip is hinged with the switching part, a first air inlet pipe is arranged in the middle of the bottom of the storage chamber in a downward extending mode, the first air inlet pipe is communicated with the storage chamber, the upper part of the lower cover is upwards extended and provided with a second air inlet pipe, the second air inlet pipe is communicated with the lower surface of the lower cover, the part, close to the opening of the upper part, of the second air inlet pipe is sleeved on;

drive arrangement includes the extension rod, extension rod lower part butt linking arm upper portion, the inside first guide post that can reciprocate that is equipped with of linking arm, first guide post upper surface can be higher than the linking arm upper surface or flush with the linking arm upper surface, the extension rod lower part is equipped with the fourth guiding hole of intercommunication extension rod upper and lower surface, works as when the linking arm is parallel with the extension rod, first guide post upper surface is higher than the linking arm and exceeds the part and inserts spacing in the fourth guiding hole.

The two sides of the first mounting part are respectively provided with a first connecting piece, the first connecting piece comprises a connecting rod, two sides of the connecting rod extend outwards to be respectively provided with a first cylindrical table and a second cylindrical table, the first cylindrical table and the second cylindrical table are respectively vertical to the connecting rod, and the other two sides of the connecting rod extend outwards to be respectively provided with a sixth boss and a seventh boss;

the two sides of the first installation part are respectively provided with a first guide hole, the lower part of the switching part, which is close to the two sides, is provided with a fifth boss in a downward extending manner, the fifth boss is positioned in the first installation part, the first cylindrical table sequentially penetrates through the first guide hole and the fifth boss, and the switching part can move along the first guide hole to open or close the flip cover;

the lower part of the upper cover extends downwards to be provided with two second bosses and two third bosses respectively, the second bosses and the third bosses are positioned on two sides of the first mounting part respectively, the sixth bosses positioned on the same side are connected with the third bosses through second springs, the second bosses comprise second guide holes, the directions of the first guide holes and the second guide holes are consistent, and the second cylindrical table is inserted into the second guide holes and can move along the second guide holes;

the upper cover lower part is equipped with the second installation department, install the ejector pin in the second installation department, the ejector pin is located between two first connecting pieces, be connected with the linkage on the telescopic link of ejector pin, the linkage both ends are articulated with the seventh boss that is located both sides respectively.

The one end that the linking arm was kept away from to the extension rod is equipped with the motor lid, motor lid lower part lid has closed the motor cabinet, the inside driving motor that is equipped with of motor cabinet, driving motor is located inside the motor lid, driving motor's drive shaft upwards wears out the motor lid upper surface and wears out the part and install the rotor subassembly, the rotor subassembly includes the rotor, rotor accessible driving motor is rotatory.

The lower part of the connecting arm is provided with a first sealing cover, the first guide column is positioned right above the first sealing cover, the annular side surface of the first guide column extends outwards to form a first annular rib, the first annular rib is positioned in the connecting arm and can be abutted against or far away from the upper surface in the connecting arm, the lower part of the first annular rib is sleeved with a first spring, and the lower part of the first spring is abutted against the upper part of the first sealing cover;

the inside third guiding hole that is equipped with of extension rod, the third guiding hole is coaxial and intercommunication each other with the fourth guiding hole, be equipped with the button that can reciprocate in the third guiding hole, extension rod upper portion is equipped with the second closing cap, second closing cap upper portion is worn out on button upper portion, the button lower part inserts in the fourth guiding hole, the outside extension of button annular side is equipped with second annular muscle, second annular muscle is located second closing cap below and butt or keeps away from the second closing cap lower part, second annular muscle lower part cover is equipped with the third spring, the inside lower surface of third spring lower part butt extension rod.

The invention has the beneficial effects that:

1. when the unmanned aerial vehicle flies normally, the turnover cover covers the storage chamber, so that the wind resistance of the unmanned aerial vehicle can be reduced, the unmanned aerial vehicle can fly conveniently, when the electric quantity of the unmanned aerial vehicle is exhausted or exceeds the remote control sensing range, the unmanned aerial vehicle drops from the air, the turnover cover is opened, airflow enters the storage chamber from the second air inlet pipe so as to open a parachute in the storage chamber, and the dropping speed of the unmanned aerial vehicle is reduced, so that the damage of the unmanned aerial vehicle is prevented, the power-off and anti-falling functions of the unmanned aerial vehicle are realized, the structure is simple and;

2. when unmanned aerial vehicle's electric quantity exhausts or surpasss the remote control response scope, the ejector pin promotes the linkage piece and removes along the second guiding hole and keep away from first installation department, drives first connecting piece through the linkage piece, and first connecting piece drives switching portion and removes to open flip, simple structure is reasonable, and the practicality is good.

Drawings

FIG. 1 is a schematic view of the present invention in its expanded configuration;

FIG. 2 is a schematic structural view of a second perspective of the present invention when deployed;

FIG. 3 is a schematic view of the folded structure of the present invention;

FIG. 4 is a schematic view showing the structure of the present invention when the parachute is opened;

FIG. 5 is an enlarged view of FIG. 4 at A;

FIG. 6 is an exploded view of the present invention;

FIG. 7 is a cross-sectional view of the present invention;

FIG. 8 is an enlarged view of FIG. 7 at B;

FIG. 9 is an enlarged view of FIG. 7 at C;

FIG. 10 is a schematic view of a partial connection structure of the connecting arm and the driving device when the present invention is unfolded;

FIG. 11 is a schematic view of the connection structure of FIG. 10 at a second viewing angle;

FIG. 12 is a schematic structural view of a driving device;

FIG. 13 is an exploded view of the drive device;

FIG. 14 is a schematic structural view of the lid assembly;

FIG. 15 is an enlarged view of FIG. 14 at D;

FIG. 16 is an enlarged view of FIG. 14 at E;

FIG. 17 is a partial schematic view of the cover at a first viewing angle;

FIG. 18 is a schematic view of the upper cover in a second view;

FIG. 19 is a schematic view of the structure of the connector;

FIG. 20 is a schematic view of the support device;

FIG. 21 is an exploded view of the support device;

figure 22 is a schematic view of the rotor assembly in a first view;

figure 23 is a schematic view of the rotor assembly from a second perspective;

FIG. 24 is an enlarged view of FIG. 23 at F;

figure 25 is an exploded view of the rotor assembly;

FIG. 26 is a schematic view of the present invention showing the construction of the installation of the casting apparatus;

figure 27 is a partial cross-sectional view of the projectile apparatus when assembled with a lower cover;

figure 28 is an exploded view of the projectile apparatus.

In the figure: the air conditioner comprises a body 1, a connecting arm 11, a first guide post 12, a first annular rib 121, a first spring 13, a first cover 14, an upper cover assembly 2, an upper cover 21, a storage chamber 211, a first notch 2111, a first boss 2112, a first mounting part 212, a first guide hole 213, a second boss 214, a second guide hole 215, a third boss 216, a second mounting part 217, a first convex rib 218, a first air inlet pipe 219, a flip cover 22, a convex part 221, a fourth boss 222, a first lock 223, an adapter part 23, a mounting groove 231, a fifth boss 232, a pin shaft 24, a torsion spring 25, a first connecting piece 26, a connecting rod 261, a first cylindrical table 262, a second cylindrical table 263, a sixth boss 264, a seventh boss 265, a push rod 27, an inclined plane linkage 28, a guide shaft 281, a second spring 29, a driving device 3, an extending rod 31, a motor cover 311, a first guide rib 312, a second notch 313, a first flat 3131, a first flat part 3132, Third guide hole 314, fourth guide hole 315, motor base 32, second guide rib 321, driving motor 33, illuminating lamp 34, heat sink 341, key 35, second annular rib 351, third spring 36, bearing 37, rotor assembly 4, rotor base 41, upright column 411, first anti-skid portion 412, jack 413, first limiting groove 414, second convex rib 415, second plane portion 416, second inclined plane portion 417, third plane portion 418, rotor 42, sleeve 421, second connector 43, bolt 44, buckle 441, lower cover 5, second air inlet pipe 51, filter screen 52, limiting protrusion 53, second limiting groove 54, mounting protrusion 55, limiting rod 56, third annular rib 561, pull rod 57, fourth spring 58, support device 6, support foot 61, annular lower support plate 611, first support rib 612, annular upper support plate 62, second support rib 621, first screw 623, second screw 623, annular air bag 63, and second screw 623, The air bag hole 631, the damping spring 64, the parachute 7, the throwing device 8, the box body 81, the throwing cover 82, the electromagnet 83, the separating rib 84, the magnetism isolating sheet 85, the limiting hole 86, the second lock catch 87 and the third limiting groove 88.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description below:

in the description of the present specification, the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or unit must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 28, an unmanned aerial vehicle comprises a machine body 1 and a driving device 3, wherein an upper cover assembly 2 is arranged at the upper part of the machine body 1, a lower cover 5 covers the lower part of the machine body 1, a supporting device 6 is arranged at the lower part of the lower cover 5, connecting arms 11 are outwards extended from four corners of the side surface of the machine body 1, and the driving device 3 is hinged to the connecting arms 11;

as shown in fig. 1 to 7, the upper cover assembly 2 includes an upper cover 21 covering the upper portion of the machine body 1, the upper cover 21 includes a storage chamber 211 with an upward opening and located in the middle of the upper cover 1 and a first installation portion 212, the first installation portion 212 is located on the side of the storage chamber 211 and has an upward opening, a parachute 7 is disposed inside the storage chamber 211, specifically, first bosses 2112 are respectively disposed at the bottom surface inside the storage chamber 211 and extend upward near four corners of the storage chamber, each rope of the parachute 7 is respectively fixed on the corresponding first bosses 2112, and each rope of the parachute 7 is separately fixed by the first bosses 2112, and by this fixing manner, mutual winding and knotting between the ropes can be effectively prevented, so that the parachute 7 can be opened normally and quickly, and the unmanned aerial vehicle can be effectively prevented from falling and being damaged;

as shown in fig. 1, the upper cover of the storage chamber 211 is closed with a flip 22, the upper cover of the first installation part 212 is closed with a switching part 23, wherein the upper surfaces of the flip 22, the switching part 23 and the upper cover 21 are flush, which is beneficial to reducing the air resistance of the unmanned aerial vehicle during the flight, so that the unmanned aerial vehicle can fly more smoothly, and the loss of electric quantity is reduced.

As shown in fig. 4, 5 and 9, the flip 22 is hinged to the adaptor 23, specifically, the adaptor 23 includes a mounting groove 231, a pin 24 is disposed in the mounting groove 231, two ends of the pin 24 respectively penetrate through two sides of the mounting groove 231, one side of the flip 22 close to the adaptor 23 is provided with a protrusion 221, the protrusion 221 is located in the mounting groove 231, a lower portion of the protrusion 221 extends downward and is provided with two fourth bosses 222, the fourth bosses 222 are sleeved on the pin 24, a torsion spring 25 is further sleeved on a side surface of the pin 24, the torsion spring 25 is located between the two fourth bosses 222, wherein the fourth bosses 222 are hinged to the pin 24, two ends of the torsion spring 25 respectively abut against a lower surface of the protrusion 221 and an inner upper surface of the mounting groove 231, when the flip 22 is covered in the storage chamber 211, the torsion spring 25 is in a compression state, that is, when the flip 22 is opened, the torsion spring 25 rebounds to enable the flip 22 to, flip 22 reaction time is quick, is favorable to opening in time of parachute 7 to improve unmanned aerial vehicle's security performance, simple structure is reasonable, and the practicality is good.

As shown in fig. 7, a first air inlet pipe 219 extends downward from the middle of the bottom of the storage chamber 211, the first air inlet pipe 219 is communicated with the storage chamber 211, the upper part of the lower cover 5 is provided with a second air inlet pipe 51 extending upwards, the second air inlet pipe 51 is communicated with the lower surface of the lower cover 5, the part of the second air inlet pipe 51 close to the upper opening is sleeved on the outer side of the first air inlet pipe 219 and is sealed, the first air inlet pipe 219 is communicated with the second air inlet pipe 51, when the lid 22 is closed on the storage chamber 211, the storage chamber 211 communicates only with the opening of the lower portion of the second air inlet duct 51, i.e., when the drone is flying horizontally or is ascending, the opening in the lower portion of the second intake pipe 51 hardly affects the resistance of the drone, when unmanned aerial vehicle descends, the air enters into the storage chamber 211 from the lower part of the second air inlet pipe 51, certain descending resistance can be played to the unmanned aerial vehicle, and the unmanned aerial vehicle can descend better in assistance.

Wherein, parachute 7's umbrella face is located directly over first intake pipe 219, and when unmanned aerial vehicle's electric quantity exhausts or surpasss the remote control response scope, unmanned aerial vehicle drops from the sky, flip 22 opens, and the air current enters into storage chamber 211 from second intake pipe 51 in to parachute 7 of 211 in opening the storage chamber that can be quick reduces unmanned aerial vehicle drop speed, thereby prevent that unmanned aerial vehicle from damaging, realizes that unmanned aerial vehicle cuts off the power supply and prevents falling the function, and simple structure is reasonable, and the practicality is good.

As shown in fig. 7 to 9, the adaptor portion 23 can horizontally move to approach or be away from the storage chamber 211, a first notch 2111 is arranged on one side of the storage chamber 211, which is away from the adaptor portion 23, a first lock 223 extends outwards from one side of the flip 22, which is away from the adaptor portion 23, the first lock 223 is inserted into the first notch 2111 for limiting, when the adaptor portion 23 moves along the opposite direction of the storage chamber 211, the first lock 223 is separated from the first notch 2111, the flip 22 rotates along a hinge point with the adaptor portion 23 to open the storage chamber 211, and the flip 22 is fixed through the cooperation of the first lock 223 and the first notch 2111, so that the structure is simple and fixed, and the influence on the unmanned aerial vehicle caused by sudden opening of the flip 22 in the flying or carrying process of the unmanned aerial vehicle can be effectively prevented.

As shown in fig. 14 to 19, two sides of the first mounting portion 212 are respectively provided with a first connecting member 26, the first connecting member 26 is located at the lower portion of the upper cover 21, the first connecting member 26 includes a connecting rod 261, one side of the connecting rod 261 close to the first mounting portion 212 is outwardly extended to be provided with a first cylindrical table 262, two sides of the first mounting portion 212 are respectively provided with a first guiding hole 213, a lower portion of the adapting portion 23 close to two sides is downwardly extended to be provided with a fifth boss 232, the fifth boss 232 is located inside the first mounting portion 212, the first cylindrical table 262 sequentially penetrates through the first guiding hole 213 and the fifth boss 232, the adapting portion 23 can move along the first guiding hole 213 to open or close the flip 22, when the flip 22 needs to be opened, the adapting portion 23 moves along the first guiding hole 213 towards one side far from the storage chamber 211, the first locking buckle 223 is separated from the first notch 2111, the flip 22 is opened under the action of the torsion spring 25, simple and reasonable structure and smooth movement.

Specifically, a third boss 216 extends downwards from the lower portion of the upper cover 21, the third bosses 216 are respectively located on two sides of the first mounting portion 212, the other two sides of the connecting rod 261 extend outwards and are respectively provided with a sixth boss 264 and a seventh boss 265, the sixth boss 264 and the third boss 216 located on the same side are connected through a second spring 29, the lower portion of the upper cover 21 is provided with a second mounting portion 217, a push rod 27 is mounted in the second mounting portion 217, the push rod 27 is located between the two first connecting members 26, a telescopic rod of the push rod 27 is connected with a linkage 28, two ends of the linkage 28 are respectively hinged to the seventh bosses 265 located on two sides, when the electric quantity of the unmanned aerial vehicle is exhausted in the flight or exceeds a remote control sensing range, an internal emergency power supply of the unmanned aerial vehicle is started (not shown in the figure), and the emergency power supply of the unmanned aerial vehicle is not, consequently when unmanned aerial vehicle from the air down drops, unmanned aerial vehicle built-in acceleration sensor (not shown in the figure) senses unmanned aerial vehicle and is downwards when doing free fall motion, trigger ejector pin 27 work, ejector pin 27's telescopic link promotes the motion of linkage 28, linkage 28 drives two first connecting pieces 26 and removes along first guiding hole 213 simultaneously and keeps away from storage chamber 211, and simultaneously, first connecting piece 26 drives switching portion 23 and flip 22 and removes, second spring 29 is tensile, and open flip 22, the quick opening of parachute 7 of storage chamber 211, reduce unmanned aerial vehicle and fall speed, thereby prevent that unmanned aerial vehicle from damaging, realize that unmanned aerial vehicle cuts off the power supply and prevent falling the function, and simple structure is reasonable, and the practicality is good.

The emergency power supply can provide corresponding energy for the acceleration sensor and the ejector rod 27, and the ejector rod 27 is positioned in the middle of the linkage 28, so that when the linkage 28 moves, the first connecting pieces 26 on two sides move in a consistent manner, the movement of the switching part 23 is effectively prevented from being blocked, and the normal opening of the flip 22 is ensured; when the flip 22 is opened, the ejector rod 27 retracts, the second springs 29 on the two sides contract to drive the first connecting piece 26 to move back, the position of the switching part 23 resets, the flip 22 is convenient to close again, the structure is simple and reasonable, and through the structural design, when the flip 22 is closed, the switching part 23 is pushed by hands on the outer surface of the upper cover 21, the flip 22 is then closed on the storage chamber 211, the switching part 23 is loosened, the second springs 29 rebound to drive the switching part 23 and the flip 22 to move, the first lock catch 223 is fixed in the first notch 2111, the fixing is reliable, the installation is convenient, the efficiency is high, and the practicability is good.

Preferably, the first connecting member 26 is provided with a second cylindrical table 263 extending outwards from a side opposite to the first cylindrical table 262, the first cylindrical table 262 and the second cylindrical table 263 are respectively perpendicular to the connecting rod 261, the lower portion of the lower cover 21 is provided with a second boss 214 extending downwards, the second bosses 214 are respectively located at two sides of the first mounting portion 212, the second bosses 214 comprise second guide holes 215, the first guide holes 213 and the second guide holes 215 are aligned, the second cylindrical table 263 is inserted into the second guide holes 215 and can move along the second guide holes 215, wherein the first cylindrical table 262 and the second cylindrical table 263 are respectively located at two ends of the connecting rod 261, and the adaptor 23 can be moved more smoothly by guiding and limiting positions of the first cylindrical table 262 and the first guide holes 213 and guiding and limiting positions of the second cylindrical table 263 and the second guide holes 215, thereby effectively preventing the first connecting member 26, the second connecting member 263, The switching part 23 and the flip 22 are blocked, locked and the like, so that the parachute 7 can be opened in time.

Preferably, two first ribs 218 extend downwards from the lower portion of the lower cover 21, a guide groove is formed between the two first ribs 218, a guide shaft 281 extends outwards from one side of the link 28 away from the top rod 27, the guide shaft 281 is inserted into the guide groove and can move along the guide groove, and the guide shaft 281 is guided and limited by the first ribs 218, so that the link 28 can keep linear motion, and the first connecting pieces 26 on both sides are prevented from moving inconsistently, and the structure is simple and the practicability is good. Preferably, the second air inlet pipe 51 is covered with a filter screen 52 at an opening at the lower part of the lower cover 5, and insects and large particles can be prevented from entering the storage chamber 211 by the filter screen 52 to affect the performance; the cross section from the bottom up of second intake pipe 51 reduces gradually, the cross section from the bottom up of first intake pipe 219 increases gradually, through this kind of design for the air current can be better enter into storage chamber 211 in, be favorable to opening in time of parachute 7.

As shown in fig. 10 to 13, the driving device 3 includes an extension rod 31, a lower portion of the extension rod 31 abuts against an upper portion of the connecting arm 11, the extension rod 31 is hinged to the connecting arm 11, a first guide post 12 capable of moving up and down is disposed inside the connecting arm 11, an upper surface of the first guide post 12 can be higher than an upper surface of the connecting arm 11 or flush with the upper surface of the connecting arm 11, a fourth guide hole 315 communicating with the upper surface and the lower surface of the extension rod 31 is disposed at a lower portion of the extension rod 31, when the connecting arm 11 is parallel to the extension rod 31, an upper surface of the first guide post 12 is higher than the connecting arm 11 and a higher portion thereof is inserted into the fourth guide hole 315 for limiting, when an upper surface of the first guide post 12 is flush with the upper surface of the connecting arm 11 or lower than the upper surface of the connecting arm 11, the driving device 3 can be folded in a rotating manner, that is, thereby realize unmanned aerial vehicle's accomodating, simple structure is reasonable, and the practicality is good.

Specifically, a first sealing cover 14 is arranged at the lower part of the connecting arm 11, the first guide column 12 is positioned right above the first sealing cover 14, a first annular rib 121 is arranged on the annular side surface of the first guide column 12 in an outward extending manner, the first annular rib 121 is positioned inside the connecting arm 11 and can be abutted against or away from the upper surface inside the connecting arm 11, a first spring 13 is sleeved at the lower part of the first annular rib 121, and the lower part of the first spring 13 is abutted against the upper part of the first sealing cover 14; the extension rod 31 is internally provided with a third guide hole 314, the third guide hole 314 and a fourth guide hole 315 are coaxial and are communicated with each other, a key 35 capable of moving up and down is arranged in the third guide hole 314, the upper portion of the extension rod 31 is provided with a second sealing cover 37, the upper portion of the key 35 penetrates out of the upper portion of the second sealing cover 37, the lower portion of the key 35 is inserted into the fourth guide hole 315, the annular side surface of the key 35 extends outwards to be provided with a second annular rib 351, the second annular rib 351 is positioned below the second sealing cover 37 and can be abutted against or far away from the lower portion of the second sealing cover 37, the lower portion of the second annular rib 351 is sleeved with a third spring 36, the lower portion of the third spring 36 is abutted against the inner lower surface of the extension rod 31, when the unmanned aerial vehicle needs to be folded and stored, the key 35 is pressed downwards, the third spring 36 is compressed, the key 35 pushes the first guide column 12 to move downwards, the upper part of the first guide post 12 is lower than the lower part of the extension rod 31, and the extension rod 31 can be rotated and folded along a hinge point with the connecting arm 11, so that the operation is simple and convenient, the occupied area of the unmanned aerial vehicle is greatly reduced, the unmanned aerial vehicle can be accommodated and carried conveniently, and the practicability is good;

when first guide post 12 breaks away from extension rod 31, first guide post 12 is through the effect of first spring 13, and first guide post 12 rebound and protrusion connecting arm 11 upper surface reset, unclamp button 35, button 35 upward movement and reset under the effect of third spring 36, through above-mentioned structural design, be favorable to continuous folding of drive arrangement 3 to accomodate and expand, convenient operation is swift, and simple structure is reasonable, and the practicality is good.

An arc-shaped second notch 313 is arranged at the lower part of the extension rod 31, the circle center of the second notch 313 is a hinge point between the extension rod 31 and the connecting arm 11, the second notch 313 is communicated with the fourth guide hole 315, the second notch 313 is composed of a first plane portion 3131 and a first inclined surface portion 3132, the first plane portion 3131 is higher than the upper surface of the first guide post 12, the first inclined surface portion 3132 is obliquely and downwardly arranged from the first plane portion 3131 to the fourth guide hole 315, and the lowest position of the first inclined surface portion 3132 is slightly higher than the lower surface of the extension rod 31;

when the driving device 3 is rotated and unfolded, the first guiding post 12 passes through the first plane part 3131, the first inclined plane part 3132 and the fourth guiding hole 315 in sequence, when the first guiding post 12 passes through the first inclined plane part 3132, the upper part of the first guiding post 12 abuts against the first inclined plane part 3132 and the first guiding post 12 vertically moves downwards to compress the first spring 13, when the first guiding post 12 is located below the fourth guiding hole 315, the first spring 13 rebounds and drives the first guiding post 12 to move upwards to be inserted into the fourth guiding hole 315 for limiting, and the rotational folding or unfolding of the driving device 3 is greatly facilitated through the cooperation of the first plane part 3131, the first inclined plane part 3132 and the fourth guiding hole 315, wherein the first inclined plane part 3132 can slowly press the first guiding post 12 downwards to enable the first guiding post 12 to move downwards, which ensures that the driving device 3 can be rotated or folded more smoothly, the driving device 3 is more time-saving and labor-saving in rotation, simple in structure, obvious in effect and good in practicability.

The end of the extension rod 31 far away from the connecting arm 11 is provided with a motor cover 311, the lower part of the motor cover 311 is covered with a motor base 32, the lower part of the motor base 32 is provided with a lighting lamp 34 capable of lighting, a driving motor 33 is arranged inside the motor base 32, the driving motor 33 is positioned inside the motor cover 311, a driving shaft of the driving motor 33 upwards penetrates out of the upper surface of the motor cover 311 and penetrates out of the motor cover to be provided with a rotor wing assembly 4, the rotor wing assembly 4 comprises a rotor wing 42, the rotor wing 42 can rotate through the driving motor 33, when the unmanned aerial vehicle works, the driving motor 33 drives the rotor wing 42 to rotate to drive the unmanned aerial vehicle to fly, the structure is simple and reasonable, wherein the lighting lamp 34 can light the ground, the unmanned aerial vehicle with the lighting lamp 34 can light the road without a street lamp, the traveling requirements of people are met, and particularly, the invention can provide illumination for rescuers or trapped persons, thereby greatly improving the possibility of successful rescue.

Preferably, a plurality of first flow guiding ribs 312 which are uniformly distributed extend inwards from the annular inner side of the motor cover 311, a plurality of second flow guiding ribs 321 extend inwards from the annular inner side of the motor base 32, and the second flow guiding ribs 321 correspond to the first flow guiding ribs 312 one to one; 34 upper portion of light upwards extends and is equipped with many fin 341, every in the fin 341 all inserts the space between two adjacent second water conservancy diversion muscle 321 that correspond, this kind of structural design, make unmanned aerial vehicle at the flight in-process, the wind-force that produces when rotor 42 is rotatory can be through second water conservancy diversion muscle 321 and the first water conservancy diversion muscle 312 between the space to the light 34 back, dispel the heat to light 34, and can also reduce the air resistance of motor lid 311, reduce the electric quantity loss when unmanned aerial vehicle flies, wherein, fin 341 all inserts between two adjacent second water conservancy diversion muscle 321 that correspond, the heat radiating area of light 34 has been increased, be favorable to the heat dissipation of light 34.

Preferably, the illuminating lamp 34 and the motor base 32 are fixed by magnet attraction, so that the illuminating lamp 34 is detachable, and the installation and the detachment of the illuminating lamp 34 are convenient. Preferably, light 34 upper surface sets up downwards along its central axis is outwards inclined, there is the space light 34 upper surface and motor cabinet 32 lower surface, conveniently from the inside circulation of air of motor lid 311, reduces air resistance, is favorable to unmanned aerial vehicle flight. Preferably, a bearing 37 is fixed in the middle of the motor cover 311, the driving shaft of the driving motor 33 penetrates through the bearing 37, and the driving shaft of the driving motor 33 moves more smoothly and smoothly through the bearing 37, so as to provide more sufficient power for the rotor 42.

As shown in fig. 22 to 25, the rotor assembly 4 includes a rotor base 41 connected to the driving motor 33, the rotor 42 is located on the upper portion of the rotor base 41 and can be rotatably unfolded or folded, two ends of the upper portion of the rotor base 41 extend upward to form upright posts 411, the two upright posts 411 are symmetrical along a central axis of the rotor base 41, one side of the rotor 42 is provided with a sleeve 421, the sleeve 421 is sleeved outside the upright posts 411, the upper portion of the sleeve 421 abuts against a second connecting member 43, the rotor base 41, the rotor 42 and the second connecting member 43 are connected and fixed by a latch 44, when the rotor 42 is to be rotatably unfolded, the latch 44 is unscrewed, and the sleeve 421 on the rotor 42 rotates along the upright posts 411 to drive the rotor 42 to rotate; when rotor 42 is fixed, only bolt 44 needs to be screwed up to lock rotor 42, and convenient operation is swift, and simple structure is reasonable, and the practicality is good.

The bolt 44 sequentially penetrates through the second connecting piece 43 and the sleeve 421 from top to bottom and is buckled with the rotor base 41, a jack 413 which is communicated with the upper surface and the lower surface of the upright column 411 is arranged in the upright column 411, a first limiting groove 414 is arranged on the lower surface of the rotor base 41, the first limiting groove 414 is coaxial with the jack 413 and is communicated with the jack, the diameter of the first limiting groove 414 is larger than that of the jack 413, a step surface is formed by the first limiting groove 414 and the jack 413, a buckle 441 is arranged on the bolt 44 close to the annular outer side of the lower portion in an outward extending mode, the bolt 44 penetrates through the jack 413, the upper portion of the buckle 441 is abutted against the step surface to form buckling connection, specifically, two opposite second convex ribs 415 are arranged on the annular inner side of the first limiting groove 414 in an inward extending mode, the step surface is divided into two parts by the second convex ribs 415, one buckle 441 is arranged on each part, and each step surface, A second inclined plane portion 417 and a third plane portion 418, the second plane portion 416 is higher than the third plane portion 418, and the second inclined plane portion 417 is disposed obliquely downward;

when the buckle 411 is located on the second plane portion 416, the rotor 42 can rotate along the upright column 411, and when the buckle 411 is located on the third plane portion 418, the rotor 42 is tightly fitted with the rotor base 41 and the second connecting member 43, specifically, when the buckle 411 is located on the second plane portion 416, there is a certain gap between the buckle 411 and the second plane portion 416, that is, the rotor 42 is in a loose state; when the rotor 42 needs to be fixed, the buckle 411 rotates clockwise, the buckle 411 is gradually tensioned when passing through the second inclined plane part 417, when the buckle 411 moves to the third plane part 418, the buckle 411 is abutted against the third plane part 418, the side surface of the buckle 411 is abutted against the second convex rib 415, meanwhile, the rotor seat 41 and the second connecting piece 43 are respectively abutted against the sleeve 421, the rotor 42 is fixed, the structure is simple and reliable, the practicability is good, compared with the traditional mode of fixing through a nut, the scheme is more convenient to operate, and the unfolding, fixing and folding of the rotor 42 can be realized without tools; wherein, through second inclined plane portion 417, can help bolt 44 rotatory fixed more easily, labour saving and time saving.

Preferably, the upper part of the rotor base 41 is provided with a first anti-slip part 412 on the side of the upright column 411, the lower part of the sleeve 421 abuts against the first anti-slip part 412, and the rotor 42 can be prevented from sliding in the rotating process of the rotor base 41 by the arrangement of the first anti-slip part 412, so that the flight of the unmanned aerial vehicle is influenced.

As shown in fig. 1 to 4 and 20 to 21, the supporting device 6 includes a plurality of supporting feet 61 and an annular upper supporting disk 62 located above the supporting feet 61, the plurality of supporting feet 61 are connected through an annular lower supporting disk 611, the annular upper supporting disk 62 is fixedly connected with the lower cover 5, the annular upper supporting disk 62 is connected with the annular lower supporting disk 611 through bolts, an annular air bag 63 is arranged between the annular lower supporting disk 611 and the annular upper supporting disk 62, the upper part of the annular air bag 63 abuts against the lower part of the annular upper supporting disk 62, the lower part of the annular air bag 63 abuts against the upper part of the annular lower supporting disk 611, when the unmanned aerial vehicle descends to the ground, the supporting feet 61 generate an upward acting force and compress the annular air bag 63, and the acting force of the supporting feet 61 on the unmanned aerial vehicle is reduced through the buffering of the annular air bag 63, the service life of the unmanned aerial vehicle, the practicability is good.

Support disc 62 inside is equipped with two second brace bars 621, two on the annular second brace bar 621 is along the central axis symmetry of support disc 62 on the annular, second brace bar 621 both ends are close to support disc 62 department on the annular and are equipped with ascending first screw rod 622, first screw rod 622 runs through lower cover 5 and passes through the nut with lower cover 5 fixed, fixes annular upper supporting plate 62 on lower cover 5 through the nut for strutting arrangement 6 is fixed more firm, thereby better plays the cushioning effect, simple structure, simple to operate.

Annular lower support plate 611 is inside to be equipped with two first support muscle 612, first support muscle 612 is located under second support muscle 621, vertical downwardly extending is equipped with second screw 623 in the middle of the second support muscle 621, second screw 623 lower part runs through first support muscle 612 lower surface and wears out the part and is fixed with the nut, second screw 623 side cover is equipped with damping spring 64, damping spring 64 upper portion butt second support muscle 621 lower part, damping spring 64 lower part butt first support muscle 612 upper portion, when supporting legs 61 receives ascending effort, can compress annular gasbag 63 and damping spring 64, through the cooperation of both, improved strutting arrangement 6's shock attenuation filtering performance greatly, protection unmanned aerial vehicle that can be better, improve unmanned aerial vehicle's life. The annular inner side of the annular air bag 63 is provided with an air bag hole 631, and when the supporting foot 61 is not stressed, the compressed annular air bag 63 absorbs the outside air through the air bag hole 631 and rebounds to reset.

As shown in fig. 26 to 28, the lower part of the lower cover 5 is provided with the throwing device 8, the throwing device 8 is located on the side of the supporting device 6, the throwing device 8 comprises a box body 81, a throwing cover 82 covers the upper part of the box body 81, a plurality of electromagnets 83 are arranged inside the box body 81, electromagnetic induction parts of the lower parts of the electromagnets 83 are communicated with the box body 81, a throwing module is formed by the box body 81, the throwing head cover 82 and the electromagnets 83, the throwing module is greatly convenient to carry, and when the throwing module is required to be used, the throwing module is directly installed on an unmanned aerial vehicle to be fixed.

The lower portion of the lower cover 5 extends downwards to be provided with a limiting protrusion 53 and an installation protrusion 55 respectively, a second limiting groove 54 is formed in one side, facing the throwing device 8, of the limiting protrusion 53, a cavity is formed in one side, located on the upper portion of the lower cover 5, of the installation protrusion 55, a limiting rod 56 is arranged inside the cavity, one end, facing the throwing device 8, of the limiting rod 56 penetrates through the installation protrusion 55, the limiting rod 56 can move to be close to or far away from the throwing device 8, a second lock catch 87 and a third limiting groove 88 are arranged on two sides of the box body 81 respectively, the second lock catch 87 is inserted into the second limiting groove 54, the limiting rod 56 is inserted into the third limiting groove 88, and the throwing device 8 is fixed through the matching of the second limiting groove 54 and the second lock catch 87 and the matching of the limiting rod 56 and the third limiting groove 88.

A pull rod 57 is further arranged in the cavity, one end of the pull rod 57 is connected with the limiting rod 56, the other end of the pull rod 57 penetrates through one side, away from the limiting rod 56, of the mounting boss 55, a third annular rib 561 extends outwards from the annular side face, located in the cavity, of the limiting rod 56, a fourth spring 58 is sleeved on the side face, located in the cavity, of the pull rod 57, one end of the fourth spring 58 is abutted against the third annular rib 561, and the other end of the fourth spring is abutted against the inner surface of the mounting boss 55;

specifically, when the throwing device 8 is installed, the throwing head cover 82 is firstly inserted into the lower portion of the lower cover 5, the second lock catch 87 is inserted into the second limiting groove 54, the pull rod 57 is pulled towards the right side, the fourth spring 58 is compressed, the limiting rod 56 is driven to move towards the right at the same time, the right side of the throwing device 8 is close to the lower cover 5, the third limiting groove 88 is aligned with the limiting rod 56, finally the pull rod 57 is released, the fourth spring 58 rebounds, the limiting rod 56 moves towards the left and is inserted into the third limiting groove 88, and the throwing device 8 is installed.

Preferably, two adjacent electromagnets 83 are separated by a separating rib 84, the number of the separating ribs 84 is two, a magnetic separating sheet 85 is arranged between the two separating ribs 84, and the electromagnetic interference of the two electromagnets 83 during operation can be greatly reduced by the magnetic separating sheet 85, so that the adsorption capacity of the electromagnets 83 is influenced. Preferably, the lower portion of the box 81 is provided with a plurality of limiting holes 86 communicating the upper and lower surfaces of the box 81, each limiting hole 86 corresponds to an electromagnetic induction portion of the corresponding electromagnet 83, and the limiting holes 86 can limit the position of an adsorbate (such as an iron block) to prevent two adjacent adsorbates from interfering with each other. When article are jettisoned to needs, only need hang a fixed circular iron plate on the jettison thing, and place the iron plate in spacing hole 86, electro-magnet 83 circular telegram work, adsorb the iron plate, unmanned aerial vehicle transports the assigned position with the jettison thing, cut off the power supply to electro-magnet 83, make iron plate and electro-magnet 83 break away from, the jettison thing drops assigned position, wherein, this jettison device 8 jettison structure and principle are simple, good reliability, electro-magnet 83 suction is big moreover, bearing capacity is strong, and the adaptation is extensive.

When assembling the parachute 7, the flip 22 and the switching part 23 are installed into one component, the first connecting piece 26 and the linkage piece 28 are installed into one component, the two components can be assembled in the pre-assembling stage of a factory, and finally, in the assembling stage, the two components are respectively installed with the upper cover 21, and finally, the parachute 7 is installed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An unmanned aerial vehicle, its characterized in that: the multifunctional electric heating cooker comprises a cooker body (1) and a driving device (3), wherein an upper cover assembly (2) is arranged on the upper portion of the cooker body (1), a lower cover (5) covers the lower portion of the cooker body (1), a supporting device (6) is installed on the lower portion of the lower cover (5), connecting arms (11) extend outwards from four corners of the side face of the cooker body (1), and the driving device (3) is hinged to the connecting arms (11);

the upper cover assembly (2) comprises an upper cover (21) which covers the upper part of the machine body (1), the upper cover (21) comprises a storage chamber (211) and a first installation part (212) which are upwards opened and located in the middle of the upper cover (1), a parachute (7) is arranged inside the storage chamber (211), a turnover cover (22) covers the upper part of the storage chamber (211), a switching part (23) covers the upper part of the first installation part (212), the turnover cover (22) is hinged to the switching part (23), a first air inlet pipe (219) is arranged in the middle of the bottom of the storage chamber (211) in a downward extending mode, the first air inlet pipe (219) is communicated with the storage chamber (211), a second air inlet pipe (51) is arranged in the upward extending mode on the upper part of the lower cover (5), the lower surface of the second air inlet pipe (51) is communicated with the lower cover (5), the part, close to the upper opening, of the second air inlet pipe (51), is sleeved outside the, the first air inlet pipe (219) is communicated with the second air inlet pipe (51);

drive arrangement (3) are including extension rod (31), extension rod (31) lower part butt linking arm (11) upper portion, inside first guide post (12) that can reciprocate that is equipped with of linking arm (11), first guide post (12) upper surface can be higher than linking arm (11) upper surface or flush with linking arm (11) upper surface, extension rod (31) lower part is equipped with fourth guiding hole (315) that communicate upper and lower surface of extension rod (31), works as when linking arm (11) are parallel with extension rod (31), it is spacing in fourth guiding hole (315) that first guide post (12) upper surface is higher than linking arm (11) and exceeds the part and inserts.

2. An unmanned aerial vehicle as claimed in claim 1, wherein: first installation department (212) both sides are equipped with first connecting piece (26) respectively, first connecting piece (26) are including connecting rod (261), the outside extension in connecting rod (261) both sides is equipped with first cylinder platform (262) and second cylinder platform (263) respectively, first cylinder platform (262) and second cylinder platform (263) are perpendicular to connecting rod (261) respectively, the outside extension in connecting rod (261) other both sides is equipped with sixth boss (264) and seventh boss (265) respectively.

3. An unmanned aerial vehicle as claimed in claim 2, wherein: first installation department (212) both sides are equipped with first guiding hole (213) respectively, switching portion (23) lower part is close to both sides department downwardly extending and is equipped with fifth boss (232), fifth boss (232) are located first installation department (212) inside, first cylinder platform (262) run through first guiding hole (213) and fifth boss (232) in proper order, switching portion (23) can be along first guiding hole (213) removal be used for opening or lid closes flip (22).

4. An unmanned aerial vehicle as claimed in claim 2, wherein: the lower portion of the upper cover (21) extends downwards to be provided with two second bosses (214) and two third bosses (216), the second bosses (214) and the third bosses (216) are located on two sides of the first mounting portion (212) respectively, the sixth bosses (264) and the third bosses (216) located on the same side are connected through second springs (29), the second bosses (214) comprise second guide holes (215), the directions of the first guide holes (213) and the second guide holes (215) are consistent, and the second cylindrical table (263) is inserted into the second guide holes (215) and can move along the second guide holes (215).

5. An unmanned aerial vehicle as claimed in claim 2, wherein: the utility model discloses a novel structure of upper cover (21) is characterized in that upper cover (21) lower part is equipped with second installation department (217), install ejector pin (27) in second installation department (217), ejector pin (27) are located between two first connecting pieces (26), be connected with linkage (28) on the telescopic link of ejector pin (27), linkage (28) both ends are articulated with seventh boss (265) that are located both sides respectively.

6. An unmanned aerial vehicle as claimed in claim 1, wherein: one end that linking arm (11) were kept away from in extension rod (31) is equipped with motor cover (311), motor cover (311) lower part lid has closed motor cabinet (32), motor cabinet (32) inside is equipped with driving motor (33), driving motor (33) are located inside motor cover (311), the drive shaft of driving motor (33) upwards wears out motor cover (311) upper surface and wears out the part and install rotor subassembly (4), rotor subassembly (4) are including rotor (42), rotor (42) accessible driving motor (33) are rotatory.

7. An unmanned aerial vehicle as claimed in claim 1, wherein: connecting arm (11) lower part is equipped with first closing cap (14), first guide post (12) are located directly over first closing cap (14), outside extension of first guide post (12) annular side is equipped with first annular muscle (121), first annular muscle (121) are located inside and can the butt of connecting arm (11) or keep away from the inside upper surface of connecting arm (11), first annular muscle (121) lower part cover is equipped with first spring (13), first closing cap (14) upper portion of first spring (13) lower part butt.

8. An unmanned aerial vehicle as claimed in claim 7, wherein: extension rod (31) inside is equipped with third guiding hole (314), third guiding hole (314) and fourth guiding hole (315) are coaxial and communicate each other, be equipped with button (35) that can reciprocate in third guiding hole (314), extension rod (31) upper portion is equipped with second closing cap (37), second closing cap (37) upper portion is worn out on button (35) upper portion, button (35) lower part inserts in fourth guiding hole (315), button (35) annular side outwards extends and is equipped with second annular muscle (351), second annular muscle (351) are located second closing cap (37) below and can butt or keep away from second closing cap (37) lower part, second annular muscle (351) lower part cover is equipped with third spring (36), the inside lower surface of third spring (36) lower part butt extension rod (31).