CN113650775B - Unmanned aerial vehicle's flight structure - Google Patents
Unmanned aerial vehicle's flight structure Download PDFInfo
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- CN113650775B CN113650775B CN202110979329.7A CN202110979329A CN113650775B CN 113650775 B CN113650775 B CN 113650775B CN 202110979329 A CN202110979329 A CN 202110979329A CN 113650775 B CN113650775 B CN 113650775B
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- machine body
- aerial vehicle
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C7/00—Structures or fairings not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D45/04—Landing aids; Safety measures to prevent collision with earth's surface
- B64D45/06—Landing aids; Safety measures to prevent collision with earth's surface mechanical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
- B64C2027/8236—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft including pusher propellers
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Toys (AREA)
Abstract
The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a flight structure of an unmanned aerial vehicle, which comprises a machine body and four flight bars arranged at the top of the machine body, wherein the four flight bars are uniformly distributed in the circumferential direction, a propeller is arranged at the top of one end of each flight bar, an umbrella cap is arranged at the top of the machine body, a connecting device is arranged between the umbrella cap and the machine body, and the diameter of the umbrella cap is larger than that of the machine body. According to the invention, the locking state is released when the unmanned aerial vehicle is powered off through the connecting device, the umbrella cap can play a role of air-catching, so that the descending speed of the umbrella cap is reduced, meanwhile, in the air-catching process of the umbrella cap, air flows are removed through the T-shaped holes, and the thickness of the U-shaped film gradually increases from zero towards the propeller as one end part of the U-shaped film faces the propeller, so that the rotating speed of the propeller is higher when the air flows blow the propeller, the descending speed of the propeller can be further slowed down when the propeller rotates, and the damage probability of the unmanned aerial vehicle is reduced.
Description
Technical Field
The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a flight structure of an unmanned aerial vehicle.
Background
Unmanned aerial vehicles, abbreviated as "unmanned aerial vehicles", abbreviated as "UAVs", are unmanned aerial vehicles that are controlled using radio remote control equipment and self-contained programming, or are operated autonomously, either entirely or intermittently, by an onboard computer. Unmanned aircraft tend to be more suitable for tasks that are too messy or dangerous than unmanned aircraft. Unmanned aerial vehicles can be classified into military and civilian applications according to the field of application. For military purposes, unmanned aerial vehicles are classified into reconnaissance and drones. The civil aspect is the real just need of the unmanned aerial vehicle; at present, the unmanned aerial vehicle is applied to the fields of aerial photography, agriculture, plant protection, miniature self-shooting, express delivery transportation, disaster relief, wild animal observation, infectious disease monitoring, mapping, news reporting, power inspection, disaster relief, video shooting and the like, so that the application of the unmanned aerial vehicle is greatly expanded, and the application and development of unmanned aerial vehicle technology in developed countries are also actively expanded.
When the unmanned aerial vehicle encounters interference or is powered off due to insufficient electric quantity, the unmanned aerial vehicle is not enough to stably fall on the ground, and the unmanned aerial vehicle falls from the high altitude at an excessively high speed, so that the unmanned aerial vehicle is damaged, and a safety accident is caused in serious cases.
Therefore, it is necessary to invent a flying structure of an unmanned aerial vehicle to solve the above problems.
Disclosure of Invention
The invention provides a flying structure of an unmanned aerial vehicle for solving the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an unmanned aerial vehicle's flight structure, includes organism and installs four flight poles at the organism top, four flight poles are circumference equipartition, and screw is installed at every flight pole one end top, and the organism top is provided with the parachute cap, is provided with connecting device between parachute cap and the organism, and the diameter of parachute cap is bigger than the diameter of organism, and the bottom surface of organism top edge and parachute cap closely laminates; the position of the top of the umbrella cap, which corresponds to the flight bar, is provided with a convex section which covers the outer side of the flight bar and is attached to the flight bar; four T-shaped holes are formed in the top of the umbrella cap, air guide plates are arranged at the horizontal sections of the T-shaped holes, the bottoms of the air guide plates are connected with the umbrella cap through U-shaped films, the U-shaped films are horizontally arranged, one end of each U-shaped film faces the propeller, the thickness of each U-shaped film gradually increases from zero to the direction of the propeller, and the bottom surface of each U-shaped film is used for guiding air flow under the umbrella cap to accelerate and flow out so as to blow the propeller.
In one embodiment, the connecting device comprises a fixed cylinder, the bottom of the fixed cylinder is fixedly connected to the top of the machine body, the top of the fixed cylinder is opened, the bottom of the inner side of the fixed cylinder is fixedly connected with a limiting cylinder, an inverted T-shaped rod is arranged in the limiting cylinder, the middle of the inner side of the fixed cylinder is fixedly connected with a fixed disc, the center of the top of the fixed disc is embedded with a locking disc, the bottom of the locking disc is fixedly connected with the top end of the inverted T-shaped rod, one side of the locking disc is provided with a moving-out hole, the inside of the moving-out hole is provided with a clamping rod, the clamping rod is connected with the end wall of the moving-out hole through a return spring, a moving-in hole is formed in the fixed disc close to the moving-out hole and is correspondingly communicated with the moving-out hole, and an electromagnet is arranged in the moving-in hole; the top of the locking disc is fixedly connected with a connecting spring, and the top end of the connecting spring is fixedly connected with the umbrella cap.
In one embodiment, the clamping rod is a ironwork, and the electromagnet can attract the clamping rod after being electrified, so that the clamping rod is clamped into the moving hole, and the balls are embedded into the upper side and the lower side of the clamping rod.
In one embodiment, an auxiliary paddle is arranged at the center of the top of the machine body, main magnetic blocks are arranged at the ends of four fan blades of the auxiliary paddle, iron sheets are fixedly connected to the bottom of the air guide sheet, and the iron sheets are in one-to-one correspondence with the main magnetic blocks.
In one embodiment, an embedded rod is arranged at the edge of the umbrella cap, one end, close to the main magnetic block, of the embedded rod is fixedly connected with the auxiliary magnetic block, and a magnetic block is arranged in the umbrella cap at the other end of the embedded rod and has opposite polarities with the auxiliary magnetic block.
In one embodiment, the top of the umbrella cap is upwardly convex, and the upper surface thereof is streamlined.
In one embodiment, the moving-out hole and the moving-in hole are horizontally arranged and are positioned at the same horizontal height, and the hole walls of the moving-out hole and the moving-in hole are polished.
In one embodiment, a silica gel ring is fixedly connected to the edge of the top of the machine body, the silica gel ring is in contact with the umbrella cap, and an arc-shaped hole is formed in the surface of the silica gel ring.
The invention has the technical effects and advantages that:
1. according to the invention, the locking state is released when the unmanned aerial vehicle is powered off through the connecting device, the umbrella cap is windward and is far away from the machine body, namely, rises for a certain distance, the umbrella cap can play a role of wind-catching, so that the descending speed of the unmanned aerial vehicle is reduced, meanwhile, in the wind-catching process of the umbrella cap, air flow is removed through the T-shaped hole, and as one end part of the U-shaped film faces the propeller, the thickness of the U-shaped film gradually increases from zero towards the propeller, the air flow can be guided to blow to the propeller, the rotating speed of the propeller is higher, the lifting force of the propeller during the rotating process can further slow down the descending speed of the propeller, and the damage probability of the unmanned aerial vehicle is reduced;
2. according to the invention, through gradual separation of the umbrella cap and the machine body, wind can reach the position right above the machine body, so that the auxiliary paddle is blown to rotate, a certain lifting force can be provided in the falling process of the machine body, and the falling speed of the machine body is further reduced. Because the main magnetic block at the end part of the auxiliary paddle can adsorb the iron sheet at the bottom of the air guide sheet, the umbrella cap is adsorbed and fixed, before the unmanned aerial vehicle is initially used, the umbrella cap is attached to the top of the machine body, and in the flight process of the unmanned aerial vehicle, the main magnetic block attracts the air guide sheet to be tightly attached to the T-shaped hole, so that the air guide sheet is prevented from being opened, and wind enters the bottom of the umbrella cap through the T-shaped hole, so that the umbrella cap is separated from the machine body, and the descending resistance of the unmanned aerial vehicle in the normal flight process is increased;
3. according to the invention, the auxiliary paddle rotates, the main magnetic block at the end part of the auxiliary paddle is gradually far away from the auxiliary magnetic block at the end part of the embedded rod, so that the attraction to the auxiliary magnetic block is weakened, at the moment, one end of the embedded rod can obliquely downwards move out of the umbrella cap under the self gravity, and when the auxiliary paddle is inclined, the end part of the embedded rod is pestled on the ground, so that the protection effect on the propeller is realized, and the service life is prolonged;
4. according to the invention, the silicone ring plays a role in sealing the umbrella cap and the machine body, so that wind is reduced from entering the center of the bottom of the umbrella cap, the descending probability of the wind in the normal flight process is reduced, meanwhile, due to the arrangement of the arc-shaped holes, the silicone ring is convenient to squeeze and deform, the service life of the wind-resistant ring is prolonged, when the unmanned aerial vehicle falls down due to faults, the two ends of the arc-shaped holes incline downwards, the middle parts of the arc-shaped holes are higher than the two ends, and when the wind enters the arc-shaped holes, the wind-resistant ring has a relatively obvious retarding effect, and the descending speed of the unmanned aerial vehicle is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall mechanism of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a top view of the invention with the umbrella cap removed;
FIG. 5 is a schematic view of the structure of the connecting device of the present invention;
FIG. 6 is an enlarged view of portion B of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of the positions of the wind guiding plate and the U-shaped film according to the present invention.
In the figure: the device comprises a machine body 1, a flight rod 2, a propeller 3, an umbrella cap 4, a connecting device 5, a fixed cylinder 51, a limiting cylinder 52, an inverted T-shaped rod 53, a fixed disc 54, a locking disc 55, a clamping rod 56, an electromagnet 57, a connecting spring 58, a convex section 6, an air guide sheet 7, a U-shaped film 8, an auxiliary propeller 9, a main magnetic block 10, an iron sheet 11, an embedded rod 12, an auxiliary magnetic block 13, a magnetic block 14, a silica gel ring 15 and an arc-shaped hole 16.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, based on the embodiments of the invention, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the invention;
in the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, in the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The invention provides a flying structure of an unmanned aerial vehicle as shown in figures 1-7, which comprises a machine body 1 and four flying rods 2 arranged at the top of the machine body 1, wherein the four flying rods 2 are uniformly distributed in the circumferential direction, a propeller 3 is arranged at the top of one end of each flying rod 2, an umbrella cap 4 is arranged at the top of the machine body 1, a connecting device 5 is arranged between the umbrella cap 4 and the machine body 1, the diameter of the umbrella cap 4 is larger than that of the machine body 1, and the edge of the top of the machine body 1 is tightly attached to the bottom surface of the umbrella cap 4; the top of the umbrella cap 4 is provided with a convex section 6 at a position corresponding to the flying rod 2, and the convex section 6 covers the outer side of the flying rod 2 and is attached to the flying rod 2; four T-shaped holes are formed in the top of the umbrella cap 4, air guide plates 7 are arranged at the horizontal sections of the T-shaped holes, the bottoms of the air guide plates 7 are connected with the umbrella cap 4 through U-shaped films 8, the U-shaped films 8 are horizontally arranged, one end of each U-shaped film 8 faces the propeller 3, the thickness of each U-shaped film 8 gradually increases from zero to the propeller 3, and the bottom surface of each U-shaped film 8 is used for guiding air flow under the umbrella cap 4 to flow out in a speed-increasing mode so as to blow the propeller 3.
When unmanned aerial vehicle takes off and electrifies, connecting device 5 is in the state of connecting organism 1 and parachute cap 4, then screw 3 work drives unmanned aerial vehicle and takes off, after unmanned aerial vehicle breaks down and cuts off the power supply, connecting device 5 is unlocked and gets into the state of freely stretching, when unmanned aerial vehicle falls, parachute cap 4 receives windage and keeps away from with organism 1, in the process of falling, parachute cap 4 can play the effect of being in the pocket wind, thereby reduce its speed of falling, the in-process of parachute cap 4 being in the pocket wind, the air current blows wind-guiding piece 7, the air current shifts out through T type hole, because the tip of U type membrane 8 is towards screw 3, the thickness of U type membrane 8 is by zero grow gradually to the direction of screw 3, consequently, the air current receives the extrusion gradually, and then the speed of blowing to screw 3 of increasing speed, make screw 3 pivoted speed faster, the lift when screw 3 rotates can further slow down unmanned aerial vehicle's speed of falling, reduce unmanned aerial vehicle's damage probability.
Referring to fig. 1, 4, 5 and 6 of the specification, the connecting device 5 includes a fixed cylinder 51, the bottom of the fixed cylinder 51 is fixedly connected to the top of the machine body 1, the top of the fixed cylinder 51 is opened, the bottom of the inner side of the fixed cylinder 51 is fixedly connected with a limiting cylinder 52, an inverted T rod 53 is arranged in the limiting cylinder 52, a fixed disc 54 is fixedly connected to the middle of the inner side of the fixed cylinder 51, a locking disc 55 is embedded in the center of the top of the fixed disc 54, the bottom of the locking disc 55 is fixedly connected with the top of the inverted T rod 53, a moving-out hole is formed in one side of the locking disc 55, a clamping rod 56 is arranged in the moving-out hole, the clamping rod 56 is connected with the end wall of the moving-out hole through a return spring, a moving-in hole is formed in the fixed disc 54 close to the moving-out hole, the moving-in hole is correspondingly communicated with the moving-out hole, and an electromagnet 57 is arranged in the moving-out hole; the top of the locking plate 55 is fixedly connected with a connecting spring 58, and the top end of the connecting spring 58 is fixedly connected with the umbrella cap 4. The clamping rod 56 is a ironwork, the electromagnet 57 can attract the clamping rod 56 after being electrified, so that the clamping rod 56 is clamped into the fixed disc 54, and balls are embedded into the upper side and the lower side of the clamping rod 56. For example, the elastic coefficient of the connecting spring 58 is set as required, so that the umbrella cap 4 can be elastically and closely attached to the body 1 when the unmanned aerial vehicle is flown normally. And after the power is off, the connecting spring 58 can also be kept to a larger extent, and only the inverted T-shaped rod 53 is allowed to ascend to prop open the umbrella cap 4.
When the unmanned aerial vehicle is electrified, the electromagnet 57 is electrified, thereby sucking the end part of the clamping rod 56 into the moving-in hole, so that the locking disc 55 is locked on the fixed disc 54, when the unmanned aerial vehicle breaks down and is powered off in the flight process, the electromagnet 57 is powered off, the clamping rod 56 is pulled into the moving-out hole again by the return spring, at the moment, the umbrella cap 4 is under the action of wind resistance, the connecting spring 58 can be pulled to move, the locking disc 55 is separated from the top of the fixed disc 54 until the locking disc 55 pulls the inverted T rod 53 to move to the top of the limiting cylinder 52, at the moment, the distance between the umbrella cap 4 and the machine body 1 reaches the maximum state, and wind energy in the falling process can enter under the umbrella cap 4 right above the machine body 1 to the maximum extent.
Referring to fig. 1, 4 and 7 of the specification, an auxiliary paddle 9 is installed at the center of the top of the machine body 1, main magnetic blocks 10 are arranged at the ends of four fan blades of the auxiliary paddle 9, iron sheets 11 are fixedly connected to the bottom of the air guide sheet 7, and the iron sheets 11 are in one-to-one correspondence with the main magnetic blocks 10.
When the umbrella cap 4 is gradually separated from the machine body 1, the umbrella cap 4 is not sealed at the top edge of the machine body 1, and at the moment, wind flow in the umbrella cap 4 can reach the position right above the machine body 1, so that the auxiliary paddle 9 is blown to rotate, a certain lifting force can be provided in the falling process of the machine body 1, and the falling speed of the machine body is further reduced. Because the main magnetic block 10 can adsorb the iron sheet 11 of air guide piece 7 bottom to have the fixed effect of absorption to the umbrella cap 4, consequently before unmanned aerial vehicle initial use, make umbrella cap 4 paste the organism 1 top tightly, and at unmanned aerial vehicle flight in-process, attract air guide piece 7 to laminate tightly in T type hole department, prevent air guide piece 7 to open, prevent that the wind flow from entering into umbrella cap 4 bottom through T type hole, arouse umbrella cap 4 and organism 1 separation, increase the resistance that descends of its normal flight in-process.
Referring to fig. 1 and 2 of the specification, an embedded rod 12 is disposed at the edge of the umbrella cap 4, an auxiliary magnetic block 13 is fixedly connected to one end of the embedded rod 12, which is close to the main magnetic block 10, a magnetic block 14 is disposed inside the umbrella cap 4 at the other end of the embedded rod 12, and the polarity of the magnetic block 14 is opposite to that of the auxiliary magnetic block 13.
When unmanned aerial vehicle breaks down, in the process of falling, umbrella cap 4 can only weaken its speed of falling, consequently after it falls to ground, after the impact of organism 1 bottom to ground, can take place to rebound, thereby cause it to empty easily, consequently after breaking down, umbrella cap 4 breaks away from a section distance with organism 1, auxiliary magnet 13 of embedding pole 12 tip can be kept away from gradually to the main magnet 10 of auxiliary magnet 9 tip when auxiliary paddle 9 rotates, consequently, the magnetic attraction to auxiliary magnet 13 weakens, release embedding pole 12, embedding pole 12 one end can receive self gravity slant to shift out umbrella cap 4 this moment, when auxiliary paddle 9 emptys, embedding pole 12 tip pestle subaerial, play the guard action to screw 3, life has been improved. For example, the embedded pole 12 is connected inside the umbrella cap 4 by an elastic rope, which can pull the embedded pole to prevent the embedded pole 12 from completely disengaging from the umbrella cap, and which can allow the embedded pole 12 to partially slide out of the umbrella cap 4.
Referring to fig. 1 of the specification, the top of the umbrella cap 4 is raised upwards, and the upper surface of the umbrella cap is streamline. Reducing drag in upward or horizontal flight.
Referring to fig. 6 of the specification, the moving-out hole and the moving-in hole are horizontally arranged and are positioned at the same horizontal height, and the hole walls of the moving-out hole and the moving-in hole are polished, so that the resistance of the clamping rod 56 in the moving process can be reduced.
Referring to fig. 1 and 2 of the specification, a silicone ring 15 is fixedly connected to the top edge of the body 1, the silicone ring 15 contacts with the umbrella cap 4, and an arc hole 16, for example, an inverted V-shaped hole, is formed in the surface of the silicone ring 15.
The silica gel ring 15 plays sealed effect between umbrella cap 4 and organism 1, reduce wind and enter into umbrella cap 4 bottom center department to reduce the probability that its normal flight in-process descends, simultaneously because the setting of arc hole 16, conveniently extrude silica gel ring 15 and warp, improve its life, and when unmanned aerial vehicle breaks down and drops, arc hole 16 both ends slope down, and arc hole 16 middle part is higher than both ends, this kind of setting, when wind enters into arc hole 16 in, have comparatively obvious retarder effect, further reduced the speed of unmanned aerial vehicle when descending.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides an unmanned aerial vehicle's flight structure, includes organism (1) and installs four flight poles (2) at organism (1) top, and four flight poles (2) are circumference equipartition, and screw (3), its characterized in that are installed at every flight pole (2) one end top: an umbrella cap (4) is arranged at the top of the machine body (1), a connecting device (5) is arranged between the umbrella cap (4) and the machine body (1), the diameter of the umbrella cap (4) is larger than that of the machine body (1), and the edge of the top of the machine body (1) is tightly attached to the bottom surface of the umbrella cap (4); the top of the umbrella cap (4) is provided with a convex section (6) at a position corresponding to the flying rod (2), and the convex section (6) covers the outer side of the flying rod (2) and is attached to the flying rod (2); four T-shaped holes are formed in the top of the umbrella cap (4), air guide plates (7) are arranged at the horizontal sections of the T-shaped holes, the bottoms of the air guide plates (7) are connected with the umbrella cap (4) through U-shaped films (8), the U-shaped films (8) are horizontally arranged, one end of each U-shaped film (8) faces the propeller (3), the thickness of each U-shaped film (8) gradually increases from zero to the propeller (3), and the bottom surface of each U-shaped film (8) is used for guiding air flow under the umbrella cap (4) to flow out in a speed-increasing mode so as to blow the propeller (3);
the connecting device (5) comprises a fixed cylinder (51), the bottom of the fixed cylinder (51) is fixedly connected to the top of the machine body (1), the top of the fixed cylinder (51) is opened, a limiting cylinder (52) is fixedly connected to the bottom of the inner side of the fixed cylinder (51), an inverted T-shaped rod (53) is arranged in the limiting cylinder (52), a fixed disc (54) is fixedly connected to the middle of the inner side of the fixed cylinder (51), a locking disc (55) is embedded in the center of the top of the fixed disc (54), the bottom of the locking disc (55) is fixedly connected with the top of the inverted T-shaped rod (53), a moving-out hole is formed in one side of the locking disc (55), a clamping rod (56) is arranged in the moving-out hole, the clamping rod (56) is connected with the end wall of the moving-out hole through a return spring, a moving-out hole is formed in the fixed disc (54) close to the moving-out hole, the moving-out hole is correspondingly communicated with the moving-out hole, and an electromagnet (57) is arranged in the moving-out hole; the top of the locking disc (55) is fixedly connected with a connecting spring (58), and the top end of the connecting spring (58) is fixedly connected with the umbrella cap (4);
the clamping rod (56) is a ironwork, and the electromagnet (57) can attract the clamping rod (56) after being electrified, so that the clamping rod (56) is clamped into the moving hole, and balls are embedded into the upper side and the lower side of the clamping rod (56);
an auxiliary paddle (9) is arranged in the center of the top of the machine body (1), main magnetic blocks (10) are arranged at the ends of four fan blades of the auxiliary paddle (9), iron sheets (11) are fixedly connected to the bottom of the air guide sheet (7), and the iron sheets (11) correspond to the main magnetic blocks (10) one by one.
2. The unmanned aerial vehicle flight structure of claim 1, wherein: an embedded rod (12) is arranged at the edge of the umbrella cap (4), one end, close to the main magnetic block (10), of the embedded rod (12) is fixedly connected with an auxiliary magnetic block (13), a magnetic block (14) is arranged inside the umbrella cap (4) at the other end of the embedded rod (12), and the polarities of the magnetic block (14) and the auxiliary magnetic block (13) are opposite.
3. The unmanned aerial vehicle flight structure of claim 1, wherein: the top of the umbrella cap (4) is upwards convex, and the upper surface of the umbrella cap is streamline.
4. The unmanned aerial vehicle flight structure of claim 1, wherein: the moving-out hole and the moving-in hole are horizontally arranged and are positioned at the same horizontal height, and the hole walls of the moving-out hole and the moving-in hole are polished.
5. The unmanned aerial vehicle flight structure of claim 1, wherein: the top edge of the machine body (1) is fixedly connected with a silica gel ring (15), the silica gel ring (15) is contacted with the umbrella cap (4), and an arc-shaped hole (16) is formed in the surface of the silica gel ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110979329.7A CN113650775B (en) | 2021-08-25 | 2021-08-25 | Unmanned aerial vehicle's flight structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110979329.7A CN113650775B (en) | 2021-08-25 | 2021-08-25 | Unmanned aerial vehicle's flight structure |
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| Publication Number | Publication Date |
|---|---|
| CN113650775A CN113650775A (en) | 2021-11-16 |
| CN113650775B true CN113650775B (en) | 2023-09-29 |
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| CN202110979329.7A Active CN113650775B (en) | 2021-08-25 | 2021-08-25 | Unmanned aerial vehicle's flight structure |
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| CN205819559U (en) * | 2016-07-18 | 2016-12-21 | 杨永泉 | A kind of rotor wing unmanned aerial vehicle with kuppe |
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| CN210149553U (en) * | 2019-04-22 | 2020-03-17 | 苏州翼搏特智能科技有限公司 | Many rotor unmanned aerial vehicle's radome fairing structure |
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