CN211308957U - Unmanned aerial vehicle undercarriage - Google Patents

Abstract

The utility model discloses an unmanned aerial vehicle undercarriage, which comprises a mounting frame, an anti-tilting device and a hydraulic buffer device, the utility model is favorable for ensuring the balance performance of the whole unmanned aerial vehicle, has stable structure, can eliminate the vibration generated by a screw propeller when the unmanned aerial vehicle flies, improves the balance performance of the unmanned aerial vehicle in the air, reduces the error generated by the screw propeller when the unmanned aerial vehicle works in the air, can reduce the vibration of the main body of the unmanned aerial vehicle, can avoid the damage of parts in the unmanned aerial vehicle body, avoids the influence on the service life of the unmanned aerial vehicle due to the vibration, prevents the unmanned aerial vehicle from skidding when being lifted, keeps the unmanned aerial vehicle straight up and down when the unmanned aerial vehicle is lifted, can prop the ground to prevent the inclination when the unmanned aerial vehicle lands too fast, can generate damping force near the ground to weaken the vibration, weakens the vibration in the place with strongest vibration, and the vibration transmitted, realize multistage shock attenuation simultaneously, reinforcing shock attenuation effect.

Description

Unmanned aerial vehicle undercarriage

Technical Field

The utility model relates to an unmanned aerial vehicle support equipment technical field specifically is an unmanned aerial vehicle undercarriage.

Background

The unmanned aerial vehicle is an unmanned aerial vehicle operated by utilizing a radio remote control device and a self-contained program control device, or is completely or intermittently and autonomously operated by an on-board computer, compared with a piloted aircraft, the unmanned aerial vehicle is often more suitable for tasks too dirty or dangerous, and can be divided into military and civil aspects, wherein the unmanned aerial vehicle is divided into a reconnaissance plane and a target plane, and the civil aspect is industrial application of the unmanned aerial vehicle, most of the unmanned aerial vehicle is applied to the fields of aerial photography, agriculture, plant protection, miniature self-timer, express transportation, disaster relief, wild animal observation, infectious disease monitoring, surveying and mapping, news reporting, electric inspection, disaster relief, movie and television shooting, romantic manufacturing and the like, and the unmanned aerial vehicle can generate strong vibration in the flying and landing processes, if the vibration cannot be effectively slowed down, the unmanned aerial vehicle can be damaged, the service life of the unmanned aerial vehicle is influenced, and the vibration reduction performance of the existing unmanned aerial vehicle landing, the vibrations that can not effectively slow down unmanned aerial vehicle and produce when rising and falling and flight can lead to the aerial work of unmanned aerial vehicle to produce the error because of vibrations, still can damage inside part, can not prevent simultaneously that unmanned aerial vehicle from falling to the ground the slope, can not give unmanned aerial vehicle and fall to the ground the protection.

SUMMERY OF THE UTILITY MODEL

In view of the problem that exists among the prior art, the utility model discloses an unmanned aerial vehicle undercarriage, the technical scheme of adoption is, including mounting bracket, anti-tilting device, hydraulic buffer, its characterized in that: the mounting frame is provided with four main mounting holes which are distributed at equal angles, the side surface of the mounting frame is respectively provided with four upper triangular supports which are distributed at equal angles along the side surface of the mounting frame, the other ends of the four upper triangular supports are respectively connected with the side surfaces of four mounting discs, the mounting discs are provided with three auxiliary mounting holes which are distributed at equal angles, the bottom center of each mounting disc is provided with an elastic head, the bottom of the mounting frame is respectively connected with the upper ends of four push rods which are distributed at equal angles along the side surface of the mounting frame, the four push rods are distributed with the four main mounting holes in a staggered way, a main support is arranged below the mounting frame, the top of the main support is respectively connected with the bottoms of four shock-absorbing cylinders, the side surfaces of the four push rods are respectively connected with the top sliding holes of the four shock-absorbing cylinders in a sliding way, and the lower, a damping spring I which is spirally distributed is arranged between the upper side of the separation plate and the inner upper side of the damping cylinder, damping springs II distributed in a spiral manner are arranged between the lower side of the partition plate and the inner lower side of the damping cylinder, the outer sides of the four damping cylinders are respectively connected with one ends of four elastic connecting ropes, the other ends of the four elastic connecting ropes are respectively connected with the four elastic heads, long springs distributed in a spiral manner are sleeved on the side surfaces of the four elastic connecting ropes, the side of main support is fixed with four lower tripods that the equiangular distribution, four lower tripod and four go up the tripod crisscross distribution, four the other end of tripod all is fixed with the connector down, four the bottom of connector respectively with four hydraulic buffer's upper end is connected, four hydraulic buffer's lower extreme all is fixed with anti-tilt device.

As a preferred technical scheme of the utility model, hydraulic buffer includes urceolus, inner tube, main shaft, big buffering assembly, little buffering assembly, big sphere top, little sphere top, the upper end of urceolus is connected the bottom of connector, the lower extreme through-hole of urceolus with the side sliding connection of inner tube, install the upper end of inner tube big buffering assembly, the upper end of big buffering assembly is fixed with big sphere top, the lower extreme through-hole of inner tube with the side sliding connection of main shaft, install the upper end of main shaft little buffering assembly, the upper end of little buffering assembly is fixed with little sphere top, the lower extreme of main shaft is connected anti-tilt device.

As a preferred technical proposal of the utility model, the large buffer assembly comprises a large buffer head, a connecting column I, an upper side disc I, a lower side disc I, a large rubber ring, a lower through hole I, an upper plug I, an upper mounting plate I, an upper sliding rod I, an upper limiting plate I, an upper spring I, a lower plug I, a lower mounting plate I, a lower sliding rod I, a lower limiting plate I and a lower spring I, the upper end of the inner cylinder is connected with the bottom center of the large buffer head, the large rubber ring is sleeved on the side surface of the large buffer head, the upper through hole I is arranged at the front end and the rear end of the large buffer head, the lower through hole I is arranged at the left end and the right end of the large buffer head, the upper side center of the large buffer head is connected with the bottom center of the upper side disc I through the connecting column I, the top center of the upper side disc I is provided with, the two lower through holes I are respectively in sliding connection with the two upper plugs I, the upper ends of the two upper plugs I are respectively provided with the upper installation piece I, the upper ends of the two installation pieces I are respectively connected with the lower ends of the two upper sliding rods I, the two upper sliding rods I are respectively in sliding connection with the two through holes on the upper side disc I, the upper ends of the two upper sliding rods I are respectively provided with the upper limiting piece I, the lower end of the side surface of the upper sliding rod I is provided with the upper spring I in spiral distribution, the side surface of the inner cylinder is sleeved with the lower side disc I, the two upper through holes I are respectively in sliding connection with the two lower plugs I, the lower ends of the two lower plugs I are respectively connected with the two lower installation pieces I, the lower sides of the two lower installation pieces I are respectively connected with the upper ends of the two lower sliding rods I, and the side surfaces of the two lower sliding holes I are respectively in sliding connection with the two through, the lower limiting pieces I are fixed at the lower ends of the two lower sliding rods I, and the upper ends of the side surfaces of the two lower sliding rods I are provided with the lower springs I which are spirally distributed.

As a preferred technical proposal of the utility model, the small buffer assembly comprises a small buffer head, a connecting column II, an upper side disc II, a lower side disc II, a small rubber ring, a lower through hole II, an upper plug II, an upper mounting plate II, an upper sliding rod II, an upper limiting plate II, an upper spring II, a lower plug II, a lower mounting plate II, a lower sliding rod II, a lower limiting plate II and a lower spring II, the upper end of the main shaft is connected with the bottom center of the small buffer head, the small rubber ring is sleeved on the side surface of the small buffer head, the upper through hole II is arranged at the front end and the rear end of the small buffer head, the lower through hole II is arranged at the left end and the right end of the small buffer head, the upper side center of the small buffer head is connected with the bottom center of the upper side disc II through the connecting column II, the top center of the upper side disc II is provided with, the two lower through holes II are respectively connected with the two upper plugs II in a sliding manner, the upper ends of the two upper plugs II are respectively provided with the upper mounting piece II, the upper ends of the two mounting pieces II are respectively connected with the lower ends of the two upper sliding rods II, the two upper sliding rods II are respectively connected with the two through holes on the upper side disc II in a sliding manner, the upper ends of the two upper sliding rods II are respectively provided with the upper limiting piece II, the lower end of the side surface of the upper sliding rod II is provided with the upper spring II which is spirally distributed, the side surface of the main shaft is sleeved with the lower side disc II, the two upper through holes II are respectively connected with the two lower plugs II in a sliding manner, the lower ends of the two lower plugs II are respectively connected with the two lower mounting pieces II, the lower sides of the two lower mounting pieces II are respectively connected with the upper ends of the two lower sliding rods II, and the side surfaces of the two lower sliding rods II are respectively connected, the lower limiting pieces II are fixed to the lower ends of the two lower sliding rods II, and the upper ends of the side faces of the two lower sliding rods II are provided with the lower springs II in spiral distribution.

As a preferred technical scheme of the utility model, anti-tilting device includes chassis, hourglass hopper-shaped ring, anti-tilting head, slipmat, the top center on chassis with hydraulic buffer's lower extreme is connected, the bottom on chassis is equipped with the slipmat, the side on chassis has been cup jointed leak hopper-shaped ring, leak hopper-shaped ring's the outside is equipped with threely anti-tilting head, it is three anti-tilting head follows the angular distribution such as side of leaking hopper-shaped ring.

The utility model has the advantages that: the utility model discloses a crisscross distribution of upper tripod and lower tripod is favorable to guaranteeing whole unmanned aerial vehicle's balance performance, and the structure is firm simultaneously, can eliminate the vibrations that the screw produced when unmanned aerial vehicle flies through long spring, improve unmanned aerial vehicle's balance performance aloft, reduce the error that unmanned aerial vehicle during aerial work produced because of the screw vibrations, can reduce the vibrations of unmanned aerial vehicle host computer department through damping spring I and damping spring II, can avoid the part of unmanned aerial vehicle organism inside to be impaired, avoid influencing unmanned aerial vehicle's life because of vibrations, protect unmanned aerial vehicle, can prevent unmanned aerial vehicle from skidding when rising and falling through the slipmat, make unmanned aerial vehicle keep straight from top to bottom when rising and falling, prevent that inertia that produces in the horizontal direction from leading to unmanned aerial vehicle to slope, can avoid unmanned aerial vehicle to topple over when unmanned aerial vehicle speed is too fast to descend through preventing the oblique head, it can prevent, the large buffer assembly and the small buffer assembly can generate damping force to resist shock at a position close to the ground, the shock is weakened at the position with the strongest shock, the subsequent shock transmitted to the undercarriage is very small, and meanwhile, multi-stage shock absorption is realized, and the shock absorption effect is enhanced.

Drawings

Fig. 1 is a schematic top view of the present invention;

fig. 2 is a schematic bottom view of the present invention;

fig. 3 is a schematic side view of the present invention;

fig. 4 is an enlarged schematic view of the structure at a of the present invention;

FIG. 5 is a front cross-sectional view of the interior of the hydraulic cushion apparatus of the present invention;

fig. 6 is an enlarged schematic view of the position B of the present invention;

fig. 7 is an enlarged schematic view of the structure at position C of the present invention;

fig. 8 is a sectional view of the inside lower side of the hydraulic buffer device of the present invention;

fig. 9 is an enlarged schematic view of the structure at position D of the present invention;

fig. 10 is an enlarged schematic view of the structure at E of the present invention.

In the figure: 1-mounting rack, 2-anti-tilting device, 201-chassis, 202-funnel-shaped ring, 203-anti-tilting head, 204-non-slip mat, 3-hydraulic buffer device, 301-outer cylinder, 302-inner cylinder, 303-main shaft, 304-big buffer assembly, 30401-big buffer head, 30402-connecting column I, 30403-upper side disk I, 30404-lower side disk I, 30405-big rubber ring, 30406-lower through hole I, 30407-upper through hole I, 30408-upper plug I, 30409-upper mounting plate I, 30410-upper sliding rod I, 30411-upper limiting plate I, 30412-upper spring I, 30413-lower plug I, 30414-lower mounting plate I, 30415-lower sliding rod I, 30416-lower limiting plate I, 30417-lower spring I, 305-small buffer assembly, 30501-a small buffer head, 30502-a connecting column II, 30503-an upper side disk II, 30504-a lower side disk II, 30505-a small rubber ring, 30506-a lower through hole II, 30507-an upper through hole II, 30508-an upper plug II, 30509-an upper mounting plate II, 30510-an upper sliding rod II, 30511-an upper limiting plate II, 30512-an upper spring II, 30513-a lower plug II, 30514-a lower mounting plate II, 30515-a lower sliding rod II, 30516-a lower limiting plate II, 30517-a lower spring II, 306-a large spherical top, 307-a small spherical top, 4-a main mounting hole, 5-an upper triangular frame, 6-a mounting plate, 7-a connector, 8-an auxiliary mounting hole, 9-a lower triangular frame, 10-a long spring, 11-an elastic head, 12-a main support, 13-push rod, 14-damping spring I, 15-separating plate, 16-damping spring II, 17-damping cylinder and 18-elastic connecting rope.

Detailed Description

Example 1

As shown in fig. 1 to 10, the utility model discloses an unmanned aerial vehicle undercarriage, the technical scheme of adoption is, including mounting bracket 1, anti-tilting device 2, hydraulic buffer 3, its characterized in that: the mounting rack 1 is provided with four main mounting holes 4 which are distributed at equal angles, the side surface of the mounting rack 1 is respectively provided with four upper triangular supports 5, the four upper triangular supports 5 are distributed at equal angles along the side surface of the mounting rack 1, the other ends of the four upper triangular supports 5 are respectively connected with the side surfaces of four mounting discs 6, the mounting discs 6 are provided with three auxiliary mounting holes 8 which are distributed at equal angles, the center of the bottom of each mounting disc 6 is provided with an elastic head 11, the bottom of the mounting rack 1 is respectively connected with the upper ends of four push rods 13, the four push rods 13 are distributed at equal angles along the side surface of the mounting rack 1, the four push rods 13 and the four main mounting holes 4 are distributed in a staggered manner, a main support 12 is arranged below the mounting rack 1, the top of the main support 12 is respectively connected with the bottoms of four damping cylinders 17, the side surfaces of the four push rods 13 are respectively connected with, the lower ends of the four push rods 13 are all fixed with a separating plate 15, a damping spring I14 which is spirally distributed is arranged between the upper side of the separating plate 15 and the inner upper side of the damping cylinder 17, a damping spring II16 which is spirally distributed is arranged between the lower side of the separating plate 15 and the inner lower side of the damping cylinder 17, one end of four elastic connecting ropes 18 is respectively connected to the outer sides of the four damping cylinders 17, the other end of each elastic connecting rope 18 is respectively connected with four elastic heads 11, long springs 10 which are spirally distributed are sleeved on the side surfaces of the four elastic connecting ropes 18, four lower triangular supports 9 which are equiangularly distributed are fixed on the side surface of the main support 12, the four lower triangular supports 9 and the four upper triangular supports 5 are distributed in a staggered mode, a connecting head 7 is fixed on the other end of each lower triangular support 9, and the bottoms of the four connecting heads 7 are respectively connected with the upper ends of the four hydraulic buffer devices 3, the lower ends of the four hydraulic buffer devices 3 are all fixed with the anti-tilting devices 2.

As a preferred technical scheme of the utility model, hydraulic buffer 3 includes urceolus 301, inner tube 302, main shaft 303, big buffering assembly 304, little buffering assembly 305, big sphere top 306, little sphere top 307, the upper end of urceolus 301 is connected the bottom of connector 7, the lower extreme through-hole of urceolus 301 with the side sliding connection of inner tube 302, install the upper end of inner tube 302 big buffering assembly 304, the upper end of big buffering assembly 304 is fixed with big sphere top 306, the lower extreme through-hole of inner tube 302 with the side sliding connection of main shaft 303, install the upper end of main shaft 303 little buffering assembly 305, the upper end of little buffering assembly 305 is fixed with little sphere top 307, the lower extreme of main shaft 303 is connected anti-tilt device 2.

As a preferred technical solution of the present invention, the big buffer assembly 304 includes a big buffer head 30401, a connection column I30402, an upper side disc I30403, a lower side disc I30404, a big rubber ring 30405, a lower through hole I30406, an upper through hole I30407, an upper plug I30408, an upper mounting plate I30409, an upper sliding rod I30410, an upper limiting plate I30411, an upper spring I30412, a lower plug I30413, a lower mounting plate I30414, a lower sliding rod I30415, a lower limiting plate I30416, and a lower spring I30417, the upper end of the inner tube 302 is connected to the bottom center of the big buffer head 30401, the big rubber ring 30405 is sleeved on the side of the big buffer head 30401, and the upper through hole is provided at both ends of the big buffer head 30401

I30407, the left and right ends of the big buffer head 30401 are both provided with the lower through holes I30406, the upper center of the big buffer head 30401 is connected with the bottom center of the upper disc I30403 through the connecting column I30402, the top center of the upper disc I30403 is provided with the big spherical top 306, the two lower through holes I30406 are respectively in sliding connection with the two upper plugs I30408, the upper ends of the two upper plugs I30408 are both provided with the upper mounting sheet I30409, the upper ends of the two mounting sheets I30409 are respectively connected with the lower ends of the two upper sliding rods I30410, the two upper sliding rods I30410 are respectively in sliding connection with the two through holes on the upper disc I30403, the upper ends of the two upper sliding rods I30410 are both provided with the upper limiting sheet I30411, the lower end of the side face of the upper sliding rod I30410 is provided with the upper springs I30412 in spiral distribution, the side face of the inner cylinder 302 is sleeved with the lower side face I30404, the two upper through holes I30407 are respectively connected with the two lower plugs I30413 in a sliding manner, the lower ends of the two lower plugs I30413 are respectively connected with the two lower mounting pieces I30414, the lower sides of the two lower mounting pieces I30414 are respectively connected with the upper ends of the two lower sliding rods I30415, the side surfaces of the two lower sliding rods I30415 are respectively connected with the two through holes on the lower side disc I30404 in a sliding manner, the lower ends of the two lower sliding rods I30415 are both fixed with the lower limiting piece I30416, and the upper ends of the side surfaces of the two lower sliding rods I30415 are both provided with the lower springs I30417 which are spirally distributed.

As a preferred technical scheme of the utility model, the small buffer assembly 305 comprises a small buffer head 30501, a connecting column II30502, an upper side disk II30503, a lower side disk 30504, a small rubber ring 30505, a lower through hole II30506, an upper through hole II30507, an upper plug II30508, an upper mounting piece II30509, an upper sliding rod II30510, an upper limiting piece II30511, an upper spring II30512, a lower plug II30513, a lower mounting piece II30514, a lower sliding rod II30515, a lower limiting piece II30516 and a lower spring II30517, the upper end of the main shaft 303 is connected with the bottom center of the small buffer head 30501, the small rubber ring 05 is sleeved on the side surface of the small buffer head 30501, the upper through hole II30507 is arranged at the front end and the rear end of the small buffer head 30501, the lower through hole II30506 is arranged at the left end and the right end of the small buffer head 30501, the upper side center of the small buffer head 30501 is connected with the upper side center of the connecting column II30503 through the upper side surface II30502, the top center of the connecting column II30503 is arranged at the top of the, two lower through-hole II30506 respectively with two go up end cap II30508 sliding connection, two go up end cap II 30508's upper end all is equipped with go up installation piece II30509, two install piece II 30509's upper end is connected two respectively go up the lower extreme of slide bar II30510, two go up slide bar II30510 respectively with two through-hole sliding connection on the disc II30503 of upside, two go up the upper end of slide bar II30510 all is equipped with go up spacing piece II30511, the side lower extreme of going up slide bar II30510 is equipped with spiral distribution go up spring II30512, the side of main shaft 303 has cup jointed downside disc II30504, two go up through-hole II30507 respectively with two lower end cap II30513 sliding connection, two the lower extreme of lower end II30513 respectively with two install piece II30514 and be connected down, two the downside of lower piece II30514 respectively with two lower slide bar II 30515's upper end is connected, two lower slide bar II 30515's side respectively with two lower slide bar II30504 on the downside, the lower end of each of the two lower sliding rods II30515 is fixed with the lower limiting piece II30516, and the upper ends of the side surfaces of the two lower sliding rods II30515 are provided with the lower springs II30517 which are spirally distributed.

As a preferred technical scheme of the utility model, anti-tilt device 2 includes chassis 201, hourglass hopper-shaped ring 202, anti-tilt head 203, slipmat 204, the top center on chassis 201 with hydraulic buffer 3's lower extreme is connected, chassis 201's bottom is equipped with slipmat 204, chassis 201's side has been cup jointed leak hopper-shaped ring 202, leak hopper-shaped ring 202's the outside is equipped with threely anti-tilt head 203, it is three anti-tilt head 203 is followed leak hopper-shaped ring 202's side angular distribution such as.

The utility model discloses a theory of operation: the unmanned aerial vehicle is fixed on the mounting frame 1 through the main mounting hole 4, four wing bases of the unmanned aerial vehicle are fixed on the mounting disc 6 through the auxiliary mounting holes 8, when the unmanned aerial vehicle flies, the propeller generates vibration, the vibration at the propeller is reduced through the long spring 10 and the elastic connecting rope 18 and is transmitted to the damping cylinder 17, the long spring 10 continuously expands and contracts in a small amplitude in the process, the damping cylinder 17 and the push rod 13 continuously expand and contract through the damping spring I14 and are simultaneously matched with the damping spring II16 to damp in a repeated expansion mode, when the unmanned aerial vehicle lands, the anti-tilting device 2 firstly contacts the ground, the anti-skidding mat 204 prevents the unmanned aerial vehicle from skidding, when the inertia is too large, the unmanned aerial vehicle can tilt in a small amplitude, the anti-tilting head 203 outside the funnel-shaped ring 202 props against the ground to prevent the unmanned aerial vehicle from tilting, meanwhile, the hydraulic buffer device 3 performs buffering and damping, and in, the anti-tilting device 2 is in contact with the ground and is stressed, the main shaft 303 is stressed to drive the small buffer assembly 305 to ascend, hydraulic oil above the small buffer assembly 305 is compressed, the lower plug I30413 is ejected out of the upper through hole II30507 downwards by the hydraulic oil, the lower spring II30517 is compressed, the hydraulic oil enters below the small buffer assembly 305, the pressure of the hydraulic oil in the inner cylinder 302 is balanced, the inner cylinder 302 drives the large buffer assembly 304 to ascend, the hydraulic oil above the large buffer assembly 304 is compressed, the lower plug I30413 is ejected out of the upper through hole I30407 downwards by the hydraulic oil, the lower spring I30417 is compressed, the hydraulic oil enters below the large buffer assembly 304 and is balanced, the pressure of the hydraulic oil in the outer cylinder 301 is balanced, a large amount of damping force is generated in the process, the shock absorption can be effectively performed, when the unmanned aerial vehicle takes off, the main shaft 303 drives the small buffer assembly 305 to descend and compress the hydraulic oil below the small buffer assembly 305 due to gravity, the upper plug II30508 is ejected upwards from the lower through hole II30506, the upper spring II30512 is compressed, so that hydraulic oil enters the upper part of the small buffer assembly 305, the pressure of the hydraulic oil in the inner cylinder 302 is balanced, meanwhile, the inner cylinder 302 drives the large buffer assembly 304 to descend, the hydraulic oil below the large buffer assembly 304 is compressed, the upper plug I30408 is ejected upwards from the lower through hole I30406, the upper spring I30412 is compressed, so that the hydraulic oil enters the upper part of the large buffer assembly 304, the pressure of the hydraulic oil in the outer cylinder 301 is balanced, and instability during take-off is prevented.

The utility model relates to a circuit connection is the conventional means that technical staff adopted in this field, and accessible limited number of tests obtains the technological inspiration, belongs to the widely used prior art.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.

Claims (5)

1. The utility model provides an unmanned aerial vehicle undercarriage, includes mounting bracket (1), anti-tilting device (2), hydraulic buffer (3), its characterized in that: the mounting rack is characterized in that four main mounting holes (4) with equal angular distribution are formed in the mounting rack (1), four upper triangular supports (5) are respectively installed on the side face of the mounting rack (1), the four upper triangular supports (5) are distributed along the side face of the mounting rack (1) with equal angular distribution, the other ends of the four upper triangular supports (5) are respectively connected with the side faces of four mounting plates (6), three auxiliary mounting holes (8) with equal angular distribution are formed in the mounting plates (6), an elastic head (11) is installed in the center of the bottom of each mounting plate (6), the bottom of the mounting rack (1) is respectively connected with the upper ends of four push rods (13), the four push rods (13) are distributed along the side face of the mounting rack (1) with equal angular distribution, the four push rods (13) are distributed with the four main mounting holes (4) in a staggered mode, and a main support (12) is arranged, the top of the main support (12) is respectively connected with the bottoms of four shock absorption cylinders (17), the side surfaces of the four push rods (13) are respectively connected with the top sliding holes of the four shock absorption cylinders (17) in a sliding manner, the lower ends of the four push rods (13) are respectively fixed with a separating plate (15), shock absorption springs I (14) which are spirally distributed are arranged between the upper side of the separating plate (15) and the inner upper side of the shock absorption cylinders (17), shock absorption springs II (16) which are spirally distributed are arranged between the lower side of the separating plate (15) and the inner lower side of the shock absorption cylinders (17), the outer sides of the four shock absorption cylinders (17) are respectively connected with one ends of four elastic connecting ropes (18), the other ends of the four elastic connecting ropes (18) are respectively connected with the four elastic heads (11), the side surfaces of the four elastic connecting ropes (18) are all sleeved with long springs (10) which are spirally distributed, the side of main support (12) is fixed with lower tripod (9), four of four equal angular distributions tripod (9) and four down tripod (9) and four go up tripod (5) crisscross distribution, four the other end of lower tripod (9) all is fixed with connector (7), four the bottom of connector (7) respectively with four the upper end of hydraulic buffer device (3) is connected, four the lower extreme of hydraulic buffer device (3) all is fixed with anti-tilt device (2).

2. An unmanned landing gear according to claim 1, wherein: the hydraulic buffer device (3) comprises an outer cylinder (301), an inner cylinder (302), a main shaft (303), a large buffer assembly (304), a small buffer assembly (305), a large spherical top head (306) and a small spherical top head (307), the upper end of the outer barrel (301) is connected with the bottom of the connector (7), the lower end through hole of the outer barrel (301) is connected with the side surface of the inner barrel (302) in a sliding way, the upper end of the inner cylinder (302) is provided with the large buffer assembly (304), the upper end of the large buffer assembly (304) is fixed with the large spherical top head (306), the lower end through hole of the inner cylinder (302) is connected with the side surface of the main shaft (303) in a sliding way, the small buffer assembly (305) is mounted at the upper end of the main shaft (303), the small spherical top head (307) is fixed at the upper end of the small buffer assembly (305), and the lower end of the main shaft (303) is connected with the anti-tilting device (2).

3. An unmanned landing gear according to claim 2, wherein: the big buffer assembly (304) comprises a big buffer head (30401), a connecting column I (30402), an upper side disc I (30403), a lower side disc I (30404), a big rubber ring (30405), a lower through hole I (30406), an upper through hole I (30407), an upper plug I (30408), an upper mounting plate I (30409), an upper sliding rod I (30410), an upper limiting plate I (30411), an upper spring I (30412), a lower plug I (30413), a lower mounting plate I (30414), a lower sliding rod I (30415), a lower limiting plate I (30416) and a lower spring I (30417), wherein the upper end of the inner cylinder (302) is connected with the bottom center of the big buffer head (30401), the side surface of the big buffer head (30401) is sleeved with the big rubber ring (30405), the front end and the rear end of the big buffer head (30401) are provided with the upper through hole I (30407), and the left end and the right end of the big buffer head (30401) are provided with the lower through hole I (30406), the upper center of the big buffer head (30401) is connected with the bottom center of the upper disc I (30403) through the connecting column I (30402), the top center of the upper disc I (30403) is provided with the big spherical top head (306), the two lower through holes I (30406) are respectively in sliding connection with the two upper plugs I (30408), the upper ends of the two upper plugs I (30408) are respectively provided with the upper mounting sheet I (30409), the upper ends of the two mounting sheets I (30409) are respectively connected with the lower ends of the two upper sliding rods I (30410), the two upper sliding rods I (30410) are respectively in sliding connection with the two through holes on the upper disc I (30403), the upper ends of the two upper sliding rods I (30410) are respectively provided with the upper limiting sheet I (30411), the lower end of the upper sliding rod I (30410) is provided with the upper springs I (30412) which are spirally distributed, the side surface of the inner cylinder (302) is sleeved with the lower side disc I (30404), the two upper through holes I (30407) are respectively connected with the two lower plugs I (30413) in a sliding manner, the lower ends of the two lower plugs I (30413) are respectively connected with the two lower mounting pieces I (30414), the lower sides of the two lower mounting pieces I (30414) are respectively connected with the upper ends of the two lower sliding rods I (30415), the side surfaces of the two lower sliding rods I (30415) are respectively connected with the two through holes on the lower side disc I (30404) in a sliding manner, the lower ends of the two lower sliding rods I (30415) are both fixed with the lower limiting piece I (30416), and the upper ends of the side surfaces of the two lower sliding rods I (30415) are both provided with the lower springs I (30417) in a spiral distribution manner.

4. An unmanned landing gear according to claim 2, wherein: the small buffer assembly (305) comprises a small buffer head (30501), a connecting column II (30502), an upper side disk II (30503), a lower side disk II (30504), a small rubber ring (30505), a lower through hole II (30506), an upper through hole II (30507), an upper plug II (30508), an upper mounting sheet II (30509), an upper sliding rod II (30510), an upper limiting sheet II (30511), an upper spring II (30512), a lower plug II (30513), a lower mounting sheet II (30514), a lower sliding rod II (30515), a lower limiting sheet II (30516) and a lower spring II (17), the upper end of the main shaft (303) is connected with the bottom center of the small buffer head (30501), the small rubber ring (30505) is sleeved on the side face of the small buffer head (30501), the upper through hole II (30507) is arranged at the front end and the rear end of the small buffer head (30501), and the lower through hole II (30506) is arranged at the left end and the right end of the small buffer head (30501), the upside center of little buffer head (30501) passes through spliced pole II (30502) and connects the bottom center of upside disc II (30503), upside disc II (30503) top center is equipped with little sphere top (307), two lower through-hole II (30506) respectively with two go up end cap II (30508) sliding connection, two go up end cap II (30508) upper end all is equipped with go up installation piece II (30509), two the upper end of installation piece II (30509) is connected two respectively the lower extreme of going up slide bar II (30510), two go up slide bar II (30510) respectively with two through-hole sliding connection on upside disc II (30503), two the upper end of going up slide bar II (30510) all is equipped with go up spacing piece II (11), the side lower extreme of going up slide bar II (30510) is equipped with spiral distribution go up spring II (30512), the side of main shaft (303) has cup jointed downside disc II (30504), two go up through-hole II (30507) respectively with two lower end cap II (30513) sliding connection, two the lower extreme of lower end cap II (30513) respectively with two install the piece II (30514) down and connect, two the downside of installing the piece II (30514) down respectively with two the upper end of lower sliding rod II (30515) is connected, two the side of lower sliding rod II (30515) respectively with two through-hole sliding connection on the downside disc II (30504), two the lower extreme of lower sliding rod II (30515) all is fixed with lower spacing piece II (30516), two the side upper end of lower sliding rod II (30515) all is equipped with spiral distribution lower spring II (30517).

5. An unmanned landing gear according to claim 1, wherein: the utility model discloses a hydraulic buffer device, including anti-tilt device (2), anti-tilt device (201), funnel shaped ring (202), anti-tilt head (203), slipmat (204), the top center on chassis (201) with the lower extreme of hydraulic buffer device (3) is connected, the bottom on chassis (201) is equipped with slipmat (204), the side on chassis (201) has been cup jointed funnel shaped ring (202), the outside of funnel shaped ring (202) is equipped with threely anti-tilt head (203), it is three anti-tilt head (203) are followed angular distribution such as the side of funnel shaped ring (202).

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