CN112319781A - Rollover-prevention buffering foot stand for unmanned aerial vehicle and buffering method thereof - Google Patents
Rollover-prevention buffering foot stand for unmanned aerial vehicle and buffering method thereof Download PDFInfo
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- CN112319781A CN112319781A CN202011092407.3A CN202011092407A CN112319781A CN 112319781 A CN112319781 A CN 112319781A CN 202011092407 A CN202011092407 A CN 202011092407A CN 112319781 A CN112319781 A CN 112319781A
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- unmanned aerial
- aerial vehicle
- buffering foot
- buffering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/58—Arrangements or adaptations of shock-absorbers or springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
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- Aviation & Aerospace Engineering (AREA)
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- Vibration Dampers (AREA)
Abstract
The invention discloses a rollover-prevention buffering foot stool for an unmanned aerial vehicle and a buffering method thereof, wherein the rollover-prevention buffering foot stool comprises the following steps: the assembly plate and the buffering foot rest are connected through the damper, the damper is connected to the assembly plate bottom surface, the buffering foot rest comprises a balance table plate and a support frame assembly which are connected through a fixing assembly, a plurality of guide rails are arranged at angles such as the upper surface of the balance table plate, a plurality of fixing assemblies are arranged at angles such as the peripheral side surface of the balance table plate, the fixing assemblies comprise a fixing frame and a first transmission shaft arranged between the fixing frame, a fixed pulley is arranged on the outer side of the first transmission shaft, a first supporting component and a second supporting component are connected through a second transmission shaft, a mounting frame is arranged on the upper surface of the second supporting component, a retractor is arranged between the mounting frames, the retractor is connected with a counterweight sliding block through a pre-tightening belt, the counterweight sliding block moves along the guide rails and pushes the buffering foot rest to.
Description
Technical Field
The invention relates to the field of unmanned aerial vehicle balance or a buffering device, in particular to a rollover-preventing buffering foot rest for an unmanned aerial vehicle and a buffering method thereof.
Background
A drone is an unmanned aircraft that is operated by a radio remote control device and a self-contained program control device, typically by a radio remote control device or a self-contained program control device. Drones tend to be more suitable for tasks that are too "fool, dirty, or dangerous" than are manned aircraft. Unmanned aerial vehicles can be classified into military and civil applications according to the application field. For military use, unmanned aerial vehicles divide into reconnaissance aircraft and target drone. In the civil aspect, unmanned aerial vehicles and industrial applications are really just needed for unmanned aerial vehicles. With the rapid development of the unmanned aerial vehicle industry, more and more unmanned aerial vehicles are applied to the industries such as agriculture, forestry, electric power, surveying and mapping, remote measurement, security protection, traffic and the like, the application of the unmanned aerial vehicle is greatly expanded, and the developed countries are also actively expanding the application of the industry and developing the unmanned aerial vehicle technology.
Unmanned aerial vehicles are of a wide variety and mainly comprise fixed-wing unmanned aerial vehicles, flapping-wing unmanned aerial vehicles, multi-rotor unmanned aerial vehicles and the like. Because control simple, the reliability is high to do not need the runway alright with VTOL, can hover in the air after taking off, consequently for fixed wing unmanned aerial vehicle and flapping wing unmanned aerial vehicle, many rotor unmanned aerial vehicle use more extensively. Many rotor unmanned aerial vehicle usually has more than three rotors, and its maneuverability can be realized through torsion and the rotational speed that changes different rotors. Common many rotor unmanned aerial vehicle, like four rotors, six rotors and eight rotor unmanned aerial vehicle, by the wide application in fields such as movie & TV aerial photography, safety monitoring, agricultural plant protection and electric power patrol line. Unmanned aerial vehicle includes fuselage and buffering foot rest, and same many rotor unmanned aerial vehicle generally all has the buffering foot rest to in unmanned aerial vehicle when landing, can stand the support to unmanned aerial vehicle through its buffering foot rest, buffering foot rest bottom generally all is outside extension, and this is for making the buffering foot rest have better steadiness. The buffering foot rest of below is connected to the fuselage, and the buffering foot rest can be used to support whole fuselage to unmanned aerial vehicle can make unmanned aerial vehicle steadily descend to the landing site through its buffering foot rest when landing. The buffering foot rest of current unmanned aerial vehicle is fixed, and the buffering foot rest is whole and fuselage fixed connection, and the holistic assembly of unmanned aerial vehicle is accomplished before dispatching from the factory.
Present buffering foot rest, unmanned aerial vehicle do not have effectual buffering shock attenuation when descending and make unmanned aerial vehicle jolt easily and fall down, and control unmanned aerial vehicle flight simultaneously when descending, because visibility reduces, whether be in the horizontal flight state when being difficult for differentiateing unmanned aerial vehicle whereabouts, if the slope whereabouts then causes the buffering foot rest to damage under the effect of the whole inertia force of unmanned aerial vehicle easily. On the other hand, current buffering foot rest can not enough sensitive adjustment unmanned aerial vehicle's balanced state, and buffering foot rest atress is inhomogeneous, so it is necessary very to provide the buffering foot rest of a cushioning effect to solve the above-mentioned problem that appears.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a rollover-preventing buffering foot stool for an unmanned aerial vehicle and a buffering method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: a rollover prevention buffering foot stool for an unmanned aerial vehicle and a buffering method thereof comprise the following steps: through assembly plate and the buffering foot rest that the attenuator is connected, the assembly plate bottom surface is connected the attenuator, the attenuator below sets up the buffering foot rest, the buffering foot rest includes: the balance bedplate and the support frame component are connected through the fixing component.
The novel balance table is characterized in that a protection shell is arranged above the balance table plate, a plurality of guide rails are arranged on the upper surface of the balance table plate at equal angles, a counterweight sliding block is arranged above the guide rails, a plurality of fixing assemblies are arranged on the peripheral side surface of the balance table plate at equal angles, each fixing assembly comprises a fixing frame and a first transmission shaft arranged between the fixing frames, fixed pulleys are arranged on the outer sides of the first transmission shafts, and the first transmission shafts are respectively connected with the support frame assemblies.
The support frame assembly includes: the two support mechanisms are symmetrically arranged about the axis of the damper and comprise a first support member and a second support member which are connected through a second transmission shaft, a mounting frame is arranged on the upper surface of the second support member, a retractor is arranged between the mounting frames, and the retractor is connected with the counterweight sliding block through a pre-tightening belt.
In a preferred embodiment of the present invention, a friction ball is disposed at one end of the first supporting member, and a surface of the friction ball is made of rubber.
In a preferred embodiment of the invention, the retractor is arranged between fixed frames, and the retractor is connected with the fixed frames through a rotating shaft.
In a preferred embodiment of the present invention, a through hole is disposed on a side surface of the protective shell.
In a preferred embodiment of the present invention, the through hole is disposed in an extending direction of the guide rail, and an upper top surface of the through hole is lower than an upper top surface of the counterweight sliding block.
In a preferred embodiment of the invention, two counterweight sliding blocks in the same support frame assembly are connected through a pre-tightening belt.
In a preferred embodiment of the invention, the waist of the fixed pulley is provided with a groove.
The second technical scheme adopted by the invention is as follows: when the buffering foot rest contacts with the ground, the gravity center of the unmanned aerial vehicle is rapidly adjusted;
when one of the support mechanisms firstly contacts the ground, the ground generates a reaction force on the support mechanism, the direction of the reaction force is inclined and does not point to the gravity center of the unmanned aerial vehicle, the buffering foot rest pushes the buffering foot rest to rotate under the reaction, and the rotating speed is controlled by the damper until the adjacent support mechanism contacts the ground; meanwhile, the pre-tightening belt on the support mechanism in contact with the ground can be instantly loosened, the two retractors on the same support frame assembly shrink simultaneously, and because the other retractor on the same support frame assembly is always in a tensioning state, the other retractor drives the two counterweight sliding blocks to slide along the guide rail.
In a preferred embodiment of the present invention, when the slider assembly is symmetrical about the damper axis and the states of the two support mechanisms on the support frame assembly are kept consistent, the buffer foot rest is in a balanced state.
In a preferred embodiment of the invention, when the unmanned aerial vehicle is in the balanced state, the gravity center of the buffering foot stool and the gravity center of the unmanned aerial vehicle body are both on the axis of the damper.
The invention solves the defects in the background technology, and has the following beneficial effects:
(1) according to the invention, the adjustment of the balance state of the buffering foot rest is completed through the matching among the pre-tightening belt, the counterweight sliding block and the retractor, the use of electronic instruments such as a traditional gyroscope is replaced, and the adjustment of the expansion degree of the buffering foot rest is realized by utilizing the matching of acting force and reacting force during the action among all components; when unmanned aerial vehicle slope cunning to ground, ground produced not directional unmanned aerial vehicle centrobaric reaction force to gimbal mechanism, and it is rotatory to utilize the reaction effect to push down the buffering foot rest ingeniously, makes adjacent gimbal mechanism contact ground at first, after two gimbal mechanisms landed, effectively improved unmanned aerial vehicle and fallen on subaerial stability.
(2) According to the invention, the damper arranged between the assembly plate and the buffering foot rest is utilized, when the buffering foot rest rotates, the unmanned aerial vehicle body on the assembly plate is ensured not to rotate along with the buffering foot rest any more, but only the buffering foot rest is pushed to rotate until the adjacent support mechanism contacts the ground, so that the impact force of the whole unmanned aerial vehicle on the buffering foot rest is weakened, and the damper has a certain friction force, so that the rotation speed can be controlled, and the buffering foot rest is effectively prevented from being unbalanced due to over-fast rotation.
(3) According to the invention, the retractor is connected with the mounting frame through the rotating shaft, so that the retractor can freely rotate along the mounting shaft, when the telescopic degree of the support mechanism is changed, the direction of the pre-tightening belt arranged above the support mechanism is changed, the retractor can flexibly adjust the opening direction of the retractor according to the traction force of the axial direction of the pre-tightening belt, so that the opening direction of the retractor is always consistent with the axial direction of the pre-tightening belt, the opening of the retractor is prevented from contacting with the pre-tightening belt to generate friction force, the sensitivity of a counterweight component is reduced, and the pre-tightening belt is prevented from being damaged too.
(4) The groove arranged at the waist of the fixed pulley can guide the pre-tightening belt to move in the groove, so that the pre-tightening belt is prevented from sliding out of the fixed pulley from the side direction, and the movement stability of the counterweight sliding block is ensured. First supporting member one end sets up the friction ball, before unmanned aerial vehicle fell to the ground, the friction ball at first contacted ground, and the frictional force between friction ball increase buffering foot rest and the ground prevents that the phenomenon of sideslipping from appearing when rotatory in the buffering foot rest, leads to unmanned aerial vehicle to turn on one's side, effectively increases the stationarity that unmanned aerial vehicle descends. The friction ball surface adopts the rubber material, and in the increase frictional force, the rubber material has certain elasticity, makes to have certain buffering between buffering foot rest and the ground to further make unmanned aerial vehicle steadily fall to the ground.
(5) The retractor drives the pre-tightening belt to contract, the counterweight sliding block is controlled to slide above the guide rail, the adjustment of the gravity center of the buffering foot rest is realized, the gravity center of the buffering foot rest deviates to the movement direction of the counterweight sliding block, the oblique acting force on the ground when the buffering foot rest falls to the ground is weakened, and meanwhile, the buffering foot rest can be quickly adjusted to a balanced state; two counterweight sliding blocks in the same support frame assembly are connected together through a pre-tightening belt, and when one counterweight sliding block moves, the other counterweight sliding block is driven to move, so that the positions of the two counterweight sliding blocks can be adjusted simultaneously, the change of the gravity center position of a buffering foot rest is accelerated, and the adjustment speed of a balance state is effectively increased; the guide rail direction and the pre-tightening belt stretching direction are arranged in parallel, so that the counterweight sliding block can smoothly move along the guide rail, and the sensitivity of the pre-tightening belt traction sliding block is further improved.
(6) According to the invention, the protective shell is arranged above the balance bedplate, so that fine particles such as sand and the like are prevented from entering components such as the guide rail and the like to influence the smoothness of the operation of the mechanism, and the buffer foot stool is protected from being interfered by the outside. The side face of the protective shell is provided with a through hole, the through hole is arranged in the extending direction of the guide rail, the pre-tightening belt can be connected with the counterweight sliding block through the through hole, the upper surface of the through hole is lower than the upper surface of the counterweight sliding block, the counterweight sliding block is prevented from being separated from the guide rail, the state of an automatic adjusting mechanism cannot be carried out, and the balance of the buffering foot rest is further destroyed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
FIG. 2 is an exploded schematic view of a preferred embodiment of the present invention;
FIG. 3 is a perspective view of a buffering foot stool according to a preferred embodiment of the present invention;
FIG. 4 is a perspective view of a fixing assembly in accordance with a preferred embodiment of the present invention;
FIG. 5 is a perspective view of a protective housing according to a preferred embodiment of the present invention;
FIG. 6 is a perspective view of a support bracket assembly in accordance with a preferred embodiment of the present invention;
FIG. 7 is a perspective view of a support structure according to a preferred embodiment of the present invention;
fig. 8 is an enlarged perspective view illustrating a retractor according to a preferred embodiment of the present invention.
Specifically, 100-buffer foot stool, 110-counterweight sliding block, 120-balance bedplate, 121-guide rail,
200-a fixed component, 210-a first transmission shaft, 220-a fixed pulley, 221-a groove, 230-a fixed frame,
300-a carrier assembly, 310-a pretensioner belt, 320-a retractor, 321-a mount, 322-a shaft body, 330-a friction ball, 340-a second support member, 350-a first support member, 360-a second transmission shaft,
400-protective housing, 410-through hole,
500-a damper, which is provided with a damper,
600-assembling the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, 2 and 3, an anti-rollover buffering foot stool for a drone includes: through assembly plate 600 and the buffering foot rest 100 that damper 500 connects, the unmanned aerial vehicle fuselage is installed to assembly plate 600 top, and damper 500 is connected to assembly plate 600 bottom surface, and damper 500 below sets up buffering foot rest 100, and buffering foot rest 100 includes: a balance bedplate 120 and a support frame assembly 300 connected by a fixing assembly 200.
As shown in fig. 4 and 5, a protective housing 400 is disposed above the balance bedplate 120, a plurality of guide rails 121 are disposed on the upper surface of the balance bedplate 120 at equal angles, a plurality of fixing assemblies 200 are disposed on the peripheral side surface of the balance bedplate 120 at equal angles, each fixing assembly 200 includes a fixing frame 230 and a first transmission shaft 210 disposed between the fixing frames 230, fixed pulleys 220 are disposed on the outer sides of the first transmission shafts 210, and the first transmission shafts 210 are respectively connected to the supporting frame assemblies 300.
As shown in fig. 6 and 7, the support frame assembly 300 includes two support mechanisms symmetrically disposed about the axis of the damper 500, the support mechanisms include a first support member 350 and a second support member 340 connected by a second transmission shaft 360, a mount 321 is disposed on the upper surface of the second support member 340, a retractor 320 is disposed between the mounts 321, the retractor 320 is connected to the weight slider 110 by a pre-tightening strap 310, and the weight slider 110 moves along the guide rail 121.
It should be noted that, when the slider assembly is symmetrical about the axis of the damper 500 and the states of the two support mechanisms on the support frame assembly 300 are kept consistent, the buffering foot stand 100 is in a balanced state. When unmanned aerial vehicle balanced state, the focus of buffering foot rest 100 and the focus of unmanned aerial vehicle fuselage all are on the 500 axes of attenuator.
In a preferred embodiment of the present invention, the adjustment of the balance state of the buffering foot rest 100 is completed by the cooperation between the pre-tightening belt 310, the counterweight sliding block 110 and the retractor 320, instead of the use of the conventional electronic instruments such as a gyroscope, and the adjustment of the expansion degree of the buffering foot rest 100 is realized by the cooperation between the acting force and the reaction force during the action among the components; when unmanned aerial vehicle slope cunning to ground, ground produced not directional unmanned aerial vehicle centrobaric reaction force to gimbal mechanism, and it is rotatory to utilize the reaction effect to push buffering foot rest 100 ingeniously, makes adjacent gimbal mechanism contact ground at first, after two gimbal mechanisms landed, effectively improved unmanned aerial vehicle and fallen on subaerial stability.
In a preferred embodiment of the present invention, the damper 500 disposed between the mounting plate 600 and the buffering foot stool 100 is used to ensure that the body of the unmanned aerial vehicle on the mounting plate 600 does not rotate along with the buffering foot stool 100 any more when the buffering foot stool 100 rotates, but only the buffering foot stool 100 itself is pushed to rotate until the adjacent support mechanism contacts the ground, so as to reduce the impact force of the whole unmanned aerial vehicle on the buffering foot stool 100, and since the damper 500 has a certain friction force, the rotation speed can be controlled, and the buffering foot stool 100 is effectively prevented from being unbalanced due to too fast rotation.
In a preferred embodiment of the present invention, the retractor 320 is connected to the mounting bracket 321 through the shaft 322, so as to ensure that the retractor 320 can rotate freely along the mounting shaft, when the extension and retraction degree of the bracket mechanism changes, the direction of the pre-tightening belt 310 disposed above the bracket mechanism changes accordingly, the retractor 320 can flexibly adjust the opening direction thereof according to the traction force of the axial direction of the pre-tightening belt 310, so that the opening direction of the retractor 320 is always consistent with the axial direction of the pre-tightening belt 310, and the opening of the retractor 320 is prevented from contacting the pre-tightening belt 310 to generate friction force, thereby reducing the sensitivity of the weight member and preventing the pre-tightening belt 310 from being damaged prematurely.
In a preferred embodiment of the present invention, a groove 221 is formed at the waist of the fixed pulley 220, so as to guide the movement of the pre-tightening belt 310 in the groove 221, prevent the pre-tightening belt 310 from sliding out of the fixed pulley 220 from the side direction, and ensure the stability of the movement of the weight slider 110. First supporting member 350 one end sets up friction ball 330, and before unmanned aerial vehicle fell to the ground, friction ball 330 at first contacted ground, and the frictional force between friction ball 330 increase buffering foot rest 100 and the ground prevents that the phenomenon of sideslipping from appearing in buffering foot rest 100 when rotatory, leads to unmanned aerial vehicle to turn on one's side, effectively increases the stationarity that unmanned aerial vehicle descends. Friction ball 330 surface adopts rubber material, and in increase frictional force, rubber material has certain elasticity, makes to have certain buffering between buffering foot rest 100 and the ground to further make unmanned aerial vehicle steadily fall to the ground.
In a preferred embodiment of the present invention, the retractor 320 drives the pre-tightening belt 310 to contract, and the counterweight sliding block 110 is controlled to slide above the guide rail 121, so as to adjust the center of gravity of the buffering foot stand 100, and the center of gravity of the buffering foot stand 100 shifts towards the movement direction of the counterweight sliding block 110, so as to weaken the oblique acting force on the ground when the buffering foot stand 100 falls to the ground, and simultaneously, enable the buffering foot stand 100 to be rapidly adjusted to a balanced state; two counterweight sliders 110 in the same support frame assembly 300 are connected together through a pre-tightening belt 310, and when one counterweight slider 110 moves, the other counterweight slider 110 is driven to move, so that the positions of the two counterweight sliders 110 can be adjusted simultaneously, the change of the gravity center position of the buffering foot rest 100 is accelerated, and the adjustment rate of the balance state is effectively increased; the guide rail 121 direction and the stretching direction of the pre-tightening belt 310 are arranged in parallel, so that the counterweight sliding block 110 can smoothly move along the guide rail 121, and the sensitivity of the slider pulled by the pre-tightening belt 310 is further improved.
In a preferred embodiment of the present invention, a protective casing 400 is disposed above the balance plate 120 to prevent fine particles such as sand from entering the guide rail 121 and other members, which may affect the smoothness of the operation of the mechanism, and protect the buffering foot stool 100 from external interference. The side of the protection housing 400 is provided with a through hole 410, and the through hole 410 is arranged in the extending direction of the guide rail 121, so that the pre-tightening belt 310 can be connected with the counterweight sliding block 110 through the through hole 410, the upper top surface of the through hole 410 is lower than the upper top surface of the counterweight sliding block 110, the counterweight sliding block 110 is prevented from being separated from the guide rail 121, the state of an automatic adjusting mechanism cannot be adjusted, and the balance of the buffering foot rest 100 is further damaged.
When the unmanned aerial vehicle is used, when one of the support mechanisms contacts the ground firstly, the ground generates a reaction force to the support mechanism, the direction of the reaction force is inclined and does not point to the gravity center of the unmanned aerial vehicle, the buffering foot rest 100 pushes the buffering foot rest to rotate under the reaction force, and the rotating speed is controlled through the damper 500 until the adjacent support mechanism contacts the ground. Meanwhile, the phenomenon of instant looseness can just appear in the pretension belt 310 on the gimbal mechanism that contacts ground, two retractors 320 on the same support frame assembly 300 shrink simultaneously, because another retractor 320 on the same support frame assembly 300 is in the tensioning state always, therefore another retractor 320 drives two counter weight sliders 110 and slides along guide rail 121, through changing the position of counter weight slider 110 on guide rail 121 in the same support frame assembly 300, unmanned aerial vehicle's focus shifts to counter weight slider 110 moving direction, weaken the oblique inertial force when buffering foot rest 100 lands, thereby make unmanned aerial vehicle keep the balanced state all the time.
It should be noted that, when the slider assembly is symmetrical about the axis of the damper 500 and the states of the two support mechanisms on the support frame assembly 300 are kept consistent, the buffering foot stand 100 is in a balanced state. When unmanned aerial vehicle balanced state, the focus of buffering foot rest 100 and the focus of unmanned aerial vehicle fuselage all are on the 500 axes of attenuator.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A prevent buffering foot rest of turning on one's side for unmanned aerial vehicle includes: the assembling plate and the buffering foot rest are connected through a damper, and the assembling plate is characterized in that the bottom surface of the assembling plate is connected with the damper, and the buffering foot rest is arranged below the damper;
the buffering foot rest includes: the balance bedplate and the support frame component are connected through the fixing component;
a protective shell is arranged above the balance bedplate, a plurality of guide rails are arranged on the upper surface of the balance bedplate at equal angles, a counterweight sliding block is arranged above the guide rails, a plurality of fixing assemblies are arranged on the peripheral side surface of the balance bedplate at equal angles, each fixing assembly comprises a fixing frame and a first transmission shaft arranged between the fixing frames, fixed pulleys are arranged on the outer sides of the first transmission shafts, and the first transmission shafts are respectively connected with the support frame assemblies;
the support frame assembly includes: the two support mechanisms are symmetrically arranged about the axis of the damper and comprise a first support member and a second support member which are connected through a second transmission shaft, a mounting frame is arranged on the upper surface of the second support member, a retractor is arranged between the mounting frames, and the retractor is connected with the counterweight sliding block through a pre-tightening belt.
2. The rollover prevention buffering foot stool for the unmanned aerial vehicle according to claim 1, characterized in that: first supporting member one end sets up the friction ball, the friction ball surface adopts the rubber material.
3. The rollover prevention buffering foot stool for the unmanned aerial vehicle according to claim 1, characterized in that: the retractor is arranged between the fixing frames, and the retractor is connected with the fixing frames through a rotating shaft.
4. The rollover prevention buffering foot stool for the unmanned aerial vehicle according to claim 1, characterized in that: the side surface of the protective shell is provided with a through hole.
5. The rollover prevention buffering foot stool for the unmanned aerial vehicle according to claim 4, characterized in that: the through hole is arranged in the extending direction of the guide rail, and the upper top surface of the through hole is lower than the upper top surface of the counterweight sliding block.
6. The rollover prevention buffering foot stool for the unmanned aerial vehicle according to claim 1, characterized in that: two counterweight sliding blocks in the same support frame assembly are connected through a pre-tightening belt.
7. The rollover prevention buffering foot stool for the unmanned aerial vehicle according to claim 1, characterized in that: the waist of the fixed pulley is provided with a groove.
8. The buffering method for the rollover prevention buffering foot stool of the unmanned aerial vehicle according to claim 1, is characterized in that:
when one of the support mechanisms firstly contacts the ground, the ground generates a reaction force on the support mechanism, the direction of the reaction force is inclined and does not point to the gravity center of the unmanned aerial vehicle, the buffering foot rest pushes the buffering foot rest to rotate under the reaction, and the rotating speed is controlled by the damper until the adjacent support mechanism contacts the ground;
meanwhile, the pre-tightening belt on the support mechanism contacting the ground can be instantaneously loosened, two retractors on the same support frame assembly contract simultaneously, and the other retractor on the same support frame assembly is always in a tensioning state; another coiler drives two the counter weight slider is followed the guide rail slides, through changing in same carriage subassembly the position of counter weight slider on the guide rail, unmanned aerial vehicle's focus shifts to counter weight slider moving direction, weakens the slant inertial force when buffering foot rest falls to the ground, and then makes unmanned aerial vehicle remain balanced state all the time.
9. The buffering method of the rollover prevention buffering foot stool for the unmanned aerial vehicle according to claim 8, characterized in that: when the sliding block assembly is symmetrical about the damper axis and the states of the two support mechanisms on the support frame assembly are kept consistent, the buffering foot rest is in a balanced state.
10. The buffering method of the rollover prevention buffering foot stool for the unmanned aerial vehicle according to claim 9, characterized in that: when the unmanned aerial vehicle is in a balanced state, the gravity center of the buffering foot rest and the gravity center of the unmanned aerial vehicle body are both on the axis of the damper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011092407.3A CN112319781B (en) | 2020-10-13 | 2020-10-13 | Rollover-prevention buffering foot stand for unmanned aerial vehicle and buffering method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011092407.3A CN112319781B (en) | 2020-10-13 | 2020-10-13 | Rollover-prevention buffering foot stand for unmanned aerial vehicle and buffering method thereof |
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| CN112319781A true CN112319781A (en) | 2021-02-05 |
| CN112319781B CN112319781B (en) | 2022-03-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB590320A (en) * | 1941-04-11 | 1947-07-15 | Siam | Improvements in or relating to apparatus for research on landing gears for aircraft |
| CN205770134U (en) * | 2016-05-30 | 2016-12-07 | 龙岩市经纬测绘有限公司 | A kind of easy unmanned plane damping undercarriage |
| CN108216587A (en) * | 2018-01-18 | 2018-06-29 | 晨龙飞机（荆门）有限公司 | A kind of undercarriage for being suitable for light-duty class aircraft and unmanned plane |
| CN110481806A (en) * | 2019-09-06 | 2019-11-22 | 衢州柯城幕布电子有限公司 | A kind of anti-crash protection structure for unmanned plane |
| CN111301665A (en) * | 2020-04-08 | 2020-06-19 | 芜湖利远电子技术有限公司 | Landing auxiliary balancing device for unmanned aerial vehicle |
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2020
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB590320A (en) * | 1941-04-11 | 1947-07-15 | Siam | Improvements in or relating to apparatus for research on landing gears for aircraft |
| CN205770134U (en) * | 2016-05-30 | 2016-12-07 | 龙岩市经纬测绘有限公司 | A kind of easy unmanned plane damping undercarriage |
| CN108216587A (en) * | 2018-01-18 | 2018-06-29 | 晨龙飞机（荆门）有限公司 | A kind of undercarriage for being suitable for light-duty class aircraft and unmanned plane |
| CN110481806A (en) * | 2019-09-06 | 2019-11-22 | 衢州柯城幕布电子有限公司 | A kind of anti-crash protection structure for unmanned plane |
| CN111301665A (en) * | 2020-04-08 | 2020-06-19 | 芜湖利远电子技术有限公司 | Landing auxiliary balancing device for unmanned aerial vehicle |
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| CN112319781B (en) | 2022-03-22 |
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