CN110775256B

CN110775256B - Unmanned aerial vehicle with buffering protection device based on knee structure and under compression bending

Info

Publication number: CN110775256B
Application number: CN201911054729.6A
Authority: CN
Inventors: 徐勇
Original assignee: Anhui Eagle Brother Unmanned Plane Technology Innovation Co ltd
Current assignee: ANHUI EAGLE BROTHER UNMANNED PLANE TECHNOLOGY INNOVATION Co.,Ltd.
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-12-04
Anticipated expiration: 2039-10-31
Also published as: CN110775256A

Abstract

The invention discloses an unmanned aerial vehicle with a buffering protection device, which is bent under pressure by taking a knee structure as a base, and the structure of the unmanned aerial vehicle comprises: the support frame, the operating compartment, the blade, intelligence buffer, the fin, the wing, contact with the floor through inside atress frame, carry out the receipt of power through the festival piece simultaneously, and it is crooked, the overall structure of top pushes down simultaneously, then the rotation of universal wheel through the top, then the carriage displacement rotates, and carry out actuation and separation with the supporting pad, prevent the damaged impression of equipment quick contact to the support, then close the pole through the hinge of top and carry out the pressfitting pad that pushes up and move inside and make inside gas by the discharge, inside atmospheric pressure pad expands simultaneously, then the inside memory sponge of shock pad is compressed, thereby carry out the top of secondary and move and exert and carry out the shock attenuation to the impulsive force, thereby accomplish and replace inside spring with gaseous displacement and cushion for the equipment operation of inside.

Description

Unmanned aerial vehicle with buffering protection device based on knee structure and under compression bending

Technical Field

The invention relates to the field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle which is pressed and bent on the basis of a knee structure and is provided with a buffer protection device.

Background

Present unmanned aerial vehicle is when descending, but with the work that the shock attenuation was cushioned to equipment through the resilience contractibility of spring to the equipment after equipment descending contact with ground through the inside spring of inside hard support, but with such a mode:

when descending buffering during operation, during the shock attenuation buffering through the spring, can produce the critical point of a compression when the spring pressurized, can reduce absorbing effect under the condition that continues the pressurized simultaneously to unable buffering, carry out being connected between equipment and the spring through the rigid support of inside simultaneously, after contacting with the bottom surface, make inside support atress fracture easily, thereby make unmanned aerial vehicle's device receive the damage, need often change, scrap even.

Disclosure of Invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: have buffer protection device's unmanned aerial vehicle for basic pressurized bending through knee structure, its structure includes: support frame, operation cabin, blade, intelligent buffer, fin, wing, the wing is located the left and right sides of operation cabin and with operation cabin fixed connection, the downside terminal surface that operation cabin 2 was located to intelligent buffer simultaneously with operation cabin fixed connection, both fixed connection in the left and right sides of support frame upside terminal surface are located to the blade, the support frame is located the downside terminal surface of operation cabin and with operation cabin fixed connection, the fin is located the rear side terminal surface of support frame simultaneously with support frame structure as an organic whole, the fin is the adjustable structure of planer-type.

As further optimization of the intelligent buffer device, the intelligent buffer device is provided with a movable support frame, a matching pressing frame and a contraction frame, the movable support frame is embedded into the matching pressing frame, the movable support frame and the matching pressing frame are in clearance fit, the contraction frame is located on the left end face of the movable support frame and is fixedly connected with the left end face of the movable support frame, and the contraction frame is of a special-shaped structure with a spring block arranged inside a hinged rod.

As a further optimization of the invention, the movable support frame is provided with a stress frame, a support pad, a reset rod, an electromagnetic block, a segment block, a sliding frame, a universal wheel, a positioning rod and a clamping block, the universal wheel is arranged on the upper side end surface of the sliding frame and is movably connected with the sliding frame, the positioning rod is mutually vertical to the sliding frame and is fixedly connected with the sliding frame, the fixture block is arranged on the front end surface of the sliding frame and is connected with the front end surface of the sliding frame in a matching way, the segment block is arranged on the lower side end surface of the sliding frame and is movably connected with the lower end surface of the sliding frame, the supporting pad is positioned on the left end surface of the sliding frame and is connected with the sliding frame in a matching way, the reset rod is arranged on the inner side of the supporting pad and is fixedly connected with the sliding frame, the electromagnetic block is movably connected with the reset rod, the stress frame is positioned on the lower side end surface of the sliding frame and is fixedly connected with the sliding frame, the electromagnetic block is of a block structure with an N-shaped pole facing inwards, and the universal wheel is of a spherical roller structure.

As a further optimization of the invention, the stressed frame is provided with a friction pad, an arc-shaped block, an air chamber and a limiting block, the air chamber is arranged on the lower side end face of the limiting block and fixedly connected with the lower side end face of the limiting block, the arc-shaped block is positioned on the lower side end face of the air chamber and is communicated with the air chamber, and the friction pad is positioned on the lower end face of the arc-shaped block and fixedly connected with the lower end face of the arc-.

The invention is further optimized by arranging a press pad, a limiting rod, a hinged rod, an arc-shaped block, an air pressure pad, a shock absorption frame and a pipe frame on the matching press frame, wherein the limiting rod is positioned on the lower side end face of the press pad and is fixedly connected with the press pad, the hinged rod is embedded in the press pad and is movably connected with the press pad, the pipe frame is positioned on the front end surface of the press pad and is movably connected with the press pad, the arc-shaped block is arranged on the left side end face of the air pressure pad and is fixedly connected with the air pressure pad, the air pressure pad is arranged at the lower end of the pipe frame and is communicated with the pipe frame, the shock absorption frame is arranged on the outer side end face of the air pressure pad and is movably connected with the air pressure pad, a movable bearing carriage is arranged on the lower side end face of the press pad, and.

As a further optimization of the invention, the arc-shaped block is provided with a soft hole pad, a joint block and a roller, the soft hole pad is positioned in the joint block and fixedly connected with the joint block, and the roller is embedded in the joint block and is in clearance fit with the joint block.

As a further optimization of the invention, the friction pad is a hollow inclined block structure which is gradually increased from left to right.

As a further optimization of the invention, the roller is of a universal ball structure with a spring block arranged inside, and the soft hole pad is of an arc-shaped porous bending structure.

Advantageous effects

The invention is applied to an unmanned aerial vehicle which is bent under pressure by taking a knee structure as a base and is provided with a buffer protection device, when the unmanned aerial vehicle descends, equipment starts to descend, a friction pad inside an inner stress frame is pressed to enable gas inside a gas cabin below to displace, meanwhile, an oblique friction pad is changed into a planar shape, the equipment slides through a rough friction surface below to enable the equipment to be stably contacted with a bottom surface, then an upper block is bent under stress, the position of a front block is limited through electromagnetic field generated by an electromagnetic block below, meanwhile, a universal wheel above can perform forced sliding on a soft hole pad inside an arc-shaped block, then the bent sliding frame is bent under stress, a hinged rod above is pushed by a clamping block, the bending of two rods can be simulated, and the stable power absorption of the equipment is formed, the damage of the device is prevented, and meanwhile, the upper hinge rod is limited by the pressing of the position rod, so that the inner press pad is pressed, meanwhile, the gas in the pipe frame is discharged, and the pipe frame is used for transmitting the gas through the displacement of the gas, then enters the air pressure pad inside, so that the air pressure pad is bulged, and the outer shock absorption frame needs to be pressed in the bulging process, the device is pressed and displaced by the memory sponge inside, and meanwhile, the acting force in one direction is applied, so that the gas inside is difficult to output, thereby ensuring the stability of the buffering of the gas, and when the stress of the equipment can be well lightened through the soft hole pad, impact break-in to the structure of the device, causing damage to the device, then after landing through flexural absorption of force and release of air pressure, the gas in the equipment and the support are reset through resetting of the shrinkage frame, so that the cyclic work of the equipment is completed.

The device mainly comprises a movable support frame, a matching pressing frame, an internal stress frame, a supporting pad, a sliding frame, a support pad, a hinge rod, a pressing pad, a pneumatic pad, a memory sponge and a damping pad, wherein the movable support frame is matched with the matching pressing frame, the internal stress frame is contacted with the floor, the power is received through the joint block and is bent, the integral structure above the movable support frame is pressed downwards, the universal wheel above the movable support frame rotates, the sliding frame rotates in a displacement mode, the support pad is used for attraction and separation, the damage impression of the quick contact of the device on the support frame is prevented, the internal pressing pad is pushed through the hinge rod above the movable support frame, so that the gas in the device is exhausted, the pneumatic pad in the device is expanded, the memory sponge in the damping pad is compressed, the secondary pushing action is carried out.

According to the invention, through the stress frame, the friction pad in point contact is slowly changed into surface contact through the compression of the gas in the gas cabin, so that the raised block body can buffer and slow down the displacement distance of landing to a certain extent, thus the equipment can more stably land and better damping and buffering work is provided.

According to the invention, through the arc-shaped block, when the spring block in the roller is pressed, the roller in the roller can prevent dry friction when the equipment is pressed, meanwhile, the porous soft hole pad is used for absorbing a part of the pressed force, and the arc-shaped structure can ensure that the force is absorbed more uniformly, so that the stable buffering work of the equipment can be improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic three-dimensional structure diagram of the main body of the unmanned aerial vehicle with the buffering protection device, which is bent under pressure based on the knee structure.

Fig. 2 is a schematic diagram of a cross-sectional mechanism of the cleaning, grinding and cutting device of the unmanned aerial vehicle with the buffering protection device, which is bent under pressure on the basis of a knee structure.

Fig. 3 is a schematic structural diagram of the movable support frame of the unmanned aerial vehicle with the buffering protection device, which is pressed and bent on the basis of the knee structure.

Fig. 4 is a schematic three-dimensional structure diagram of the stress frame of the unmanned aerial vehicle with the buffering protection device, which is bent under pressure based on the knee structure.

Fig. 5 is a schematic structural diagram of a matching pressing frame of an unmanned aerial vehicle with a buffering protection device, which is pressed and bent on the basis of a knee structure.

Fig. 6 is a schematic structural diagram of an arc-shaped block of the unmanned aerial vehicle with the buffering protection device, which is bent under pressure on the basis of a knee structure.

In the figure: the device comprises a support frame-1, an operation cabin-2, blades-3, an intelligent buffer device-4, an empennage-5, wings-6, a movable support frame-41, a matching pressing frame-42, a contraction frame-43, a stress frame-411, a supporting pad-412, a reset rod-413, an electromagnetic block-414, a segment-415, a sliding frame-416, a universal wheel-417, a positioning rod-418, a clamping block-419, a friction pad-4111, an arc block-4112, an air cabin-4113, a limiting block-4114, a pressing pad-421, a limiting rod-422, a hinged rod-423, an arc block-424, an air pressure pad-425, a damping frame-426, a pipe frame-427, a soft hole pad-4241, a joint block-4242 and a roller-4243.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.

Examples

Referring to fig. 1, the present invention provides an unmanned aerial vehicle with a cushion protection device, which is bent under pressure based on a knee structure, and the structure of the unmanned aerial vehicle includes: support frame 1, operation cabin 2, blade 3, intelligent buffer 4, fin 5, wing 6 be located the left and right sides of operation cabin 2 and with operation cabin 2 fixed connection, the downside terminal surface that operation cabin 2 was located simultaneously to intelligence buffer 4 and operation cabin 2 fixed connection, both fixed connection in the left and right sides of 1 side terminal surface of support frame are located to blade 3, support frame 1 is located the downside terminal surface of operation cabin 2 and with operation cabin 2 fixed connection, fin 5 is located the rear side terminal surface of support frame 1 simultaneously and support frame 1 is the integrated structure, fin 5 is the adjustable structure of portal type, can be so that the equipment can be stable when flying carry out the adjustable regulation through the mobilizable structure of portal type.

Referring to fig. 2, the present invention provides an unmanned aerial vehicle with a cushion protection device, which is bent under pressure based on a knee structure, and the structure of the unmanned aerial vehicle includes: the intelligent buffer device 4 is provided with a movable support frame 41, a matching pressing frame 42 and a contraction frame 43, the movable support frame 41 is embedded into the matching pressing frame 42, the movable support frame and the movable support frame adopt clearance fit, the contraction frame 43 is located on the left end face of the movable support frame 41 and is fixedly connected with the left end face of the movable support frame, the contraction frame 43 is of a special-shaped structure provided with a spring block for the inside of a hinged rod, and the inner spring is used for performing the hinge movement work of resetting of the equipment.

Referring to fig. 3, the present invention provides an unmanned aerial vehicle with a cushion protection device, which is bent under pressure based on a knee structure, and the structure of the unmanned aerial vehicle includes: the movable support frame 41 is provided with a stressed frame 411, a support pad 412, a reset rod 413, an electromagnetic block 414, a joint block 415, a sliding frame 416, a universal wheel 417, a positioning rod 418 and a fixture block 419, the universal wheel 417 is movably connected with the upper end surface of the sliding frame 416, the positioning rod 418 is perpendicular to the sliding frame 416 and is fixedly connected with the sliding frame 416, the fixture block 419 is arranged on the front end surface of the sliding frame 416 and is connected in a matching manner, the joint block 415 is movably connected with the lower end surface of the sliding frame 416, the support pad 412 is arranged on the left end surface of the sliding frame 416 and is connected in a matching manner, the reset rod 413 is arranged on the inner side of the support pad 412 and is fixedly connected with the two, the electromagnetic block 414 is movably connected with the reset rod 413, the stressed frame 411 is arranged on the lower end surface of the sliding frame 416 and is fixedly connected with, the universal wheel 417 is a spherical roller structure, and the spherical roller structure can have a certain rolling displacement mobility when being pressed.

Referring to fig. 4, the present invention provides an unmanned aerial vehicle with a cushion protection device, which is bent under pressure based on a knee structure, and the structure of the unmanned aerial vehicle includes: stress frame 411 is equipped with friction pad 4111, arc piece 4112, gas chamber 4113, stopper 4114, both fixed connection of downside terminal surface are located stopper 4114 to gas chamber 4113, arc piece 4112 is located gas chamber 4113's downside terminal surface and link up with gas chamber 4113 and is connected, friction pad 4111 is located both fixed connection of lower terminal surface of arc piece 4112, friction pad 4111 is hollow slant block structure that increases progressively by turning left to right, can use the point contact to carry out the movable contact with the bottom plate, uses atmospheric pressure to become the board profile structure as the medium simultaneously to the buffering of body face body contact increase structure.

Referring to fig. 5, the present invention provides an unmanned aerial vehicle with a cushion protection device, which is bent under pressure based on a knee structure, and the structure of the unmanned aerial vehicle includes: the matching pressing frame 42 is provided with a pressing pad 421, a limiting rod 422, a hinged rod 423, an arc block 424, an air pressure pad 425, a shock absorption frame 426 and a pipe frame 427, the limiting rod 422 is positioned on the lower side end face of the pressing pad 421 and fixedly connected with the pressing pad 421, the hinged rod 423 is embedded in the pressing pad 421 and movably connected with the pressing pad 421, the pipe frame 427 is positioned on the front end face of the pressing pad 421 and movably connected with the pressing pad 421, the arc block 424 is positioned on the left side end face of the air pressure pad 425 and fixedly connected with the air pressure pad 425, the air pressure pad 425 is arranged at the lower end of the pipe frame 427 and communicated with the two, the shock absorption frame 426 is arranged on the outer side end face of the air pressure pad 425 and movably connected with the air pressure pad 425, the lower side end face of the pressing pad 421 is provided with a movable bearing carriage, the equipment can be stably lifted through the bearing carriage, and the force application, the inside of shock attenuation frame 426 is equipped with the memory sponge structure of block, can prevent the abrupt resilience of equipment through the soft resilience of memory sponge.

Referring to fig. 6, the present invention provides an unmanned aerial vehicle with a cushion protection device, which is bent under pressure based on a knee structure, and the structure of the unmanned aerial vehicle includes: the arc-shaped block 424 is provided with a soft hole pad 4241, a joint block 4242 and a roller 4243, the soft hole pad 4241 is located inside the joint block 4242 and is fixedly connected with the joint block 4242, the roller 4243 is embedded inside the joint block 4242 and is in clearance fit with the joint block 4242, the roller 4243 is of a universal sphere structure with a spring block inside, the elastic sphere structure can better bear the absorbed power of the equipment through certain pressed displacement rolling capacity of the sphere spring structure, the soft hole pad 4241 is of an arc-shaped porous bending structure, the bending structure can wrap an inner support, meanwhile, the stress is uniform, the output of a hole body is regulated flexibly, and the equipment is prevented from being too stiff.

When the descending operation is performed, when the equipment starts to descend, the friction pad 4111 inside the internal stress rack 411 is pressed to enable the gas inside the gas chamber 4113 below to displace, and simultaneously enable the oblique friction pad 4111 to deform into a planar shape, the equipment can be stably contacted with the bottom surface through the sliding displacement of the rough friction surface below, then the upper block 415 is stressed and bent, the position of the front block 415 is limited through the electromagnetic block 414 below, meanwhile, the universal wheel 417 above can perform stressed sliding of force on the soft hole pad 4241 inside the arc block 424, then the bent sliding frame 416 is stressed and bent, the hinge rod 423 above is pushed through the fixture block 419, the bending of the knee can be simulated through the bending of the two rods, so that the stable power absorption of the equipment is formed, and the damage of the equipment is prevented, while the upper hinge rod 423 is limited by the compression of the limiting rod 422, so that the inner press pad 421 is compressed, while the gas inside is discharged, and by the displacement of the gas, the gas is transferred by the pipe frame 427, and then enter the inner air pressure pad 425, so that the air pressure pad 425 swells, and needs to press the outer shock-absorbing mount 426 during swelling, the device is pressed and displaced by the memory sponge inside, and meanwhile, the acting force in one direction is applied, so that the gas inside is difficult to output, thereby ensuring the stability of the buffer of the gas, and when the stress of the equipment can be well lightened through the soft hole pad 4241, impact break-in to the structure of the device, causing damage to the device, then after landing through flexural absorption of force and release of air pressure, the gas and the bracket inside the equipment are reset through resetting of the shrinkage rack 43, so that the cyclic work of the equipment is completed.

The invention solves the problems that when the landing buffering work is carried out, a compression critical point is generated when the spring is pressed through the damping buffering of the spring, the damping effect can be reduced under the condition of continuous pressing, the buffering can not be carried out, meanwhile, the connection between equipment and the spring is carried out through an internal rigid support, after the connection is carried out with the bottom surface, the internal support is easily stressed and broken, so that the device of the unmanned aerial vehicle is damaged and needs to be frequently replaced or even scrapped, the invention mainly matches a movable support frame 41 and a matching pressing frame 42, contacts with the floor through the internal stressed frame, receives power through a joint block and bends, simultaneously presses down the integral structure above, then rotates through the universal wheel above, then the sliding frame rotates in a displacement way, and is attracted and separated through a supporting pad, prevent the quick contact of equipment to the damaged impression of support, then carry out the top through the hinge pole of top and move inside pressfitting pad and make inside gas discharged, inside atmospheric pressure pad expands simultaneously, then the inside memory sponge of shock pad is compressed, thereby carry out secondary top and move and exert and carry out the shock attenuation to the impulsive force, thereby accomplish and replace inside spring with gaseous displacement and cushion as the equipment operation of inside, through the inside gaseous pressurized of inside gas cabin, make by the friction pad of point contact slowly become the face contact, thereby bellied block can have certain buffering and slow down the displacement distance that descends, thereby can make equipment more stably fall to the ground, provide better shock attenuation buffering work, when the spring block through the inside gyro wheel is pressurized, inside gyro wheel can prevent the dry and astringent friction when pressing of equipment, carry out some absorption of pressure with porous soft hole pad simultaneously, and the force can be absorbed more uniformly by the arc-shaped structure, so that the stable buffering work of the equipment can be improved.

While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.

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

1. Have buffer protection device's unmanned aerial vehicle for basic pressurized bending through knee structure, its structure includes: support frame (1), operation cabin (2), blade (3), intelligent buffer (4), fin (5), wing (6) be located the left and right sides of operation cabin (2) and with operation cabin (2) fixed connection, the downside terminal surface of operation cabin (2) is located in intelligent buffer (4) simultaneously with operation cabin (2) fixed connection, both fixed connection in the left and right sides of support frame (1) upside terminal surface, its characterized in that are located in blade (3):

the support frame (1) is positioned on the lower side end face of the operation cabin (2) and is fixedly connected with the operation cabin (2), and the tail wing (5) is positioned on the rear side end face of the support frame (1) and is integrated with the support frame (1);

the intelligent buffer device (4) is provided with a movable support frame (41), a matching pressing frame (42) and a contraction frame (43), the movable support frame (41) is embedded into the matching pressing frame (42) and is in clearance fit with the matching pressing frame (42), and the contraction frame (43) is positioned on the left end face of the movable support frame (41) and is fixedly connected with the left end face of the movable support frame;

the movable support frame (41) is provided with a stress frame (411), a support pad (412), a reset rod (413), an electromagnetic block (414), a joint block (415), a sliding frame (416), a universal wheel (417), a positioning rod (418) and a fixture block (419), the universal wheel (417) is arranged on the upper side end face of the sliding frame (416) and movably connected with the upper side end face of the sliding frame (416), the positioning rod (418) is perpendicular to the sliding frame (416) and fixedly connected with the sliding frame (416), the fixture block (419) is arranged on the front end face of the sliding frame (416) and is connected with the front end face of the sliding frame (416) in a matching manner, the joint block (415) is arranged on the lower side end face of the sliding frame (416) and movably connected with the lower side end face of the sliding frame (416), the support pad (412) is arranged on the left side end face of the sliding frame (, the stress frame (411) is positioned on the lower side end face of the sliding frame (416) and is fixedly connected with the sliding frame (416).

2. The unmanned aerial vehicle with buffering protection device through knee structure for basic compression bending of claim 1, characterized in that: stress frame (411) are equipped with friction pad (4111), arc piece (4112), gas chamber (4113), stopper (4114), both fixed connection of downside terminal surface of stopper (4114) are located in gas chamber (4113), arc piece (4112) are located the downside terminal surface of gas chamber (4113) and link up with gas chamber (4113) and are connected, both fixed connection of lower terminal surface that friction pad (4111) are located arc piece (4112).

3. The unmanned aerial vehicle with buffering protection device through knee structure for basic compression bending of claim 1, characterized in that: the matching pressing frame (42) is provided with a pressing pad (421), a limiting rod (422), a hinged rod (423), an arc-shaped block (424), an air pressure pad (425), a shock absorption frame (426) and a pipe frame (427), the limiting rod (422) is positioned on the lower end surface of the pressing pad (421) and is fixedly connected with the pressing pad (421), the hinging rod (423) is embedded into the pressing pad (421) and is movably connected with the pressing pad (421), the pipe frame (427) is positioned on the front end surface of the pressing pad (421) and is movably connected with the pressing pad (421), the arc-shaped block (424) is arranged on the left end face of the air pressure pad (425) and is fixedly connected with the air pressure pad (425), the air pressure pad (425) is arranged at the lower end of the pipe frame (427) and is communicated with the pipe frame (427), the shock absorption frame (426) is arranged on the outer side end face of the air pressure pad (425) and is movably connected with the air pressure pad (425).

4. The unmanned aerial vehicle with buffering protection device through knee structure for basic compression bending of claim 3, characterized in that: the arc-shaped block (424) is provided with a soft hole pad (4241), a joint block (4242) and a roller (4243), the soft hole pad (4241) is located inside the joint block (4242) and is fixedly connected with the joint block (4242), and the roller (4243) is embedded inside the joint block (4242) and is in clearance fit with the joint block (4242).

5. The unmanned aerial vehicle with buffering protection device through knee structure for basic compression bending of claim 2, characterized in that: the friction pad (4111) is a hollow inclined block structure which increases from left to right.

6. The unmanned aerial vehicle with buffering protection device through knee structure for basic compression bending of claim 4, characterized in that: the roller (4243) is of a universal sphere structure with a spring block arranged inside, and the soft hole pad (4241) is of an arc-shaped porous bending structure.