CN113911324A - Unmanned aerial vehicle undercarriage that takes precautions against earthquakes - Google Patents
Unmanned aerial vehicle undercarriage that takes precautions against earthquakes Download PDFInfo
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- CN113911324A CN113911324A CN202111345273.6A CN202111345273A CN113911324A CN 113911324 A CN113911324 A CN 113911324A CN 202111345273 A CN202111345273 A CN 202111345273A CN 113911324 A CN113911324 A CN 113911324A
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- 230000005291 magnetic effect Effects 0.000 claims description 29
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 description 7
- 230000035939 shock Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
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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
- B64C25/62—Spring shock-absorbers; 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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Abstract
The invention discloses an unmanned aerial vehicle shockproof undercarriage which comprises a mounting plate, an upper hinge rod and a lower hinge rod, wherein the upper hinge rod and the lower hinge rod are arranged at the bottom of the mounting plate; the lower hinge bar of left side bending and the same pivoted of right side go up the hinge bar and the lower hinge bar is together supporting unmanned aerial vehicle descending, accomplish until unmanned aerial vehicle descending process, can adapt to unevenness's ground well through this structure, thereby be convenient for unmanned aerial vehicle's descending, as shown in the figure, for another kind of descending state, left lower hinge bar does not fall to the arch on ground completely, left lower hinge bar needs to rotate great angle this moment, make hinge post gradually with ground contact down, and the same last hinge bar in right side drives hinge bar contact ground and deflection down, accomplish unmanned aerial vehicle's descending through cooperation between them, avoid damaging it.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicle undercarriage, in particular to an unmanned aerial vehicle shockproof undercarriage.
Background
The unmanned aerial vehicle undercarriage is that unmanned aerial vehicle is used for the special device that the rolloff, park, needs bear the static load and the dynamic load that unmanned aerial vehicle and ground contact produced, plays the effect of supporting and protection organism, and the undercarriage relies on the buffer to absorb landing impact energy, and the quality of its performance has decisive influence to unmanned aerial vehicle take off and land the performance.
The Chinese patent CN112357067A discloses an unmanned aerial vehicle shockproof undercarriage, which solves the problems that in the prior art, the unmanned aerial vehicle undercarriage is mostly rigid, cannot play a role in buffering or has a small buffering effect, and when an unmanned aerial vehicle is in emergency forced landing, the unmanned aerial vehicle cannot effectively play a good role in protecting and damping, so that the service life of the unmanned aerial vehicle is influenced, and the unmanned aerial vehicle is very inconvenient. The utility model provides an unmanned aerial vehicle undercarriage that takes precautions against earthquakes, includes the unmanned aerial vehicle body, and the bottom of unmanned aerial vehicle body is equipped with the loading board, and the top both sides of loading board are all seted up flutedly, the equal fixedly connected with connecting plate in bottom both sides of unmanned aerial vehicle body. The shockproof undercarriage provided by the invention can not only play a role in shock absorption protection for the unmanned aerial vehicle body, but also realize multi-direction and multi-angle shock absorption protection by using the components in the grooves, and simultaneously can realize the shock absorption effect of the undercarriage bottom by using the matching action of the sliding sleeve and the first extrusion spring.
But this equipment mainly concentrates on the shock attenuation to the design of undercarriage, adopts traditional spring to carry out the shock attenuation and only is suitable for descending at comparatively level and smooth subaerial, in case when unevenness's condition appears in the ground that descends, utilizes above-mentioned structure to make it take place to incline when berthhing unmanned aerial vehicle, can lead to unmanned aerial vehicle to empty when serious to damage unmanned aerial vehicle.
Therefore, it is necessary to provide a shockproof undercarriage for an unmanned aerial vehicle to solve the above technical problems.
Disclosure of Invention
The invention aims to provide an unmanned aerial vehicle shockproof undercarriage, which aims to solve the existing problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an unmanned aerial vehicle shockproof undercarriage comprises a mounting plate, an upper hinge rod and a lower hinge rod, wherein the upper hinge rod and the lower hinge rod are arranged at the bottom of the mounting plate, a guide rod is connected in the mounting plate in a sliding manner, the upper hinge rod and the lower hinge rod are hinged through a lower hinge column, and the upper hinge rod and the mounting plate are hinged through an upper hinge rod;
the utility model discloses a hinge bar, including hinge bar, mounting panel, lower hinge bar outside slip is provided with down the slide bar, go up the hinge bar outside slip and be provided with the slide bar, hinge bar and lower hinge bar fixed connection down, lower hinge bar runs through the hinge bar and rotates with last hinge bar simultaneously and be connected, the mounting panel bottom is located the equal fixedly connected with riser in hinge bar both sides, it runs through the riser and is fixed mutually with the riser to go up the hinge bar, simultaneously, goes up the hinge bar and runs through the hinge bar and rotate with last hinge bar and be connected.
When the unmanned aerial vehicle lands on the uneven ground, the left lower hinged rod bends upwards relative to the upper hinged rod and is parallel to the ground, the right upper hinged rod drives the lower sliding rod to contact with the ground and rotate to the right together, the left lower hinged rod and the right upper hinged rod which rotate together support the unmanned aerial vehicle to land until the landing process of the unmanned aerial vehicle is completed, the structure can be well adapted to the uneven ground, so that the unmanned aerial vehicle can land conveniently, as shown in figure 10, the unmanned aerial vehicle is in another landing state, the left lower hinged rod does not completely land on a bulge on the ground, the left lower hinged rod needs to rotate by a larger angle, the lower hinged column is gradually contacted with the ground, the right upper hinged rod drives the lower hinged rod to contact with the ground and deflect, and the landing of the unmanned aerial vehicle is completed through the matching of the left lower hinged rod and the right upper hinged rod, avoiding damage to it.
As a further scheme of the invention, a guide groove is formed in the mounting plate, and the guide rod is connected to the inside of the guide groove in a sliding manner.
During the concrete use, the guide way is favorable to the installation of guide bar, and during actual operation, the guide way is the arc of kickup, is favorable to making the guide bar be in the intermediate position of articulated mast on both sides.
As a further scheme of the invention, through holes are formed in the upper hinge column and the lower hinge column, and the upper slide bar penetrates through the through holes and is connected with the upper hinge column and the lower hinge column in a sliding manner.
During the specific use, all be provided with the through-hole that runs through on last hinge post and the hinge post down and be favorable to cooperating with last slide bar to the connected state of hinge bar and lower hinge bar in the control is favorable to unmanned aerial vehicle's descending.
According to a further scheme of the invention, the outer sides of the upper hinge rod and the lower hinge rod are fixedly connected with connecting seats, the upper sliding rod and the lower sliding rod penetrate through the connecting seats and are in sliding connection with the connecting seats, the outer side of the lower hinge rod is fixedly connected with a limiting plate, a first spring is arranged between the limiting plate and the connecting seats, and the first spring is arranged on the outer side of the lower sliding rod.
During specific use, the connecting seat is favorable to the installation of going up slide bar and lower slide bar, and first spring can improve the stability of lower slide bar motion.
As a further scheme of the invention, a third ferromagnetic magnet is mounted at the top end of the upper sliding rod, a second magnet which is mutually exclusive with the third magnet is mounted at the bottom end of the upper sliding rod, a fourth magnet is mounted at the top end of the upper sliding rod, and a first magnet is mounted at one end, close to the upper sliding rod, of the guide rod.
When the upper slide bar slides to the right side, the upper slide bar on the right side and the upper hinge post are separated from contact, at the moment, the hinge state between the upper hinge post and the vertical plate is activated, so that the upper hinge post can rotate around the upper hinge post, and the upper slide bar is still matched with the lower hinge post when the upper slide bar slides downwards, thereby locking the upper and lower hinge rods on the right side.
As a further scheme of the invention, the outer side of the lower hinged rod is fixedly connected with an outer sheath, the outer side of the upper hinged rod is fixedly connected with an inner sliding sleeve, the outer sliding rod and the inner sliding sleeve are both arranged in an arc shape, the circle centers of the outer sliding sleeve and the inner sliding sleeve are both coincided with the circle center of the lower hinged column, a cavity inside the outer sliding sleeve is provided with a second spring, and the second spring is arranged between the outer sliding sleeve and the inner sliding sleeve.
As a further scheme of the invention, the top end of the outer side of the upper hinge rod is fixedly connected with an outer sliding rod, the outer side of the mounting plate is fixedly connected with a baffle, the bottom end of the baffle is fixedly connected with an inner sliding rod, the outer sliding rod and the inner sliding rod are both arranged in an arc shape, the circle centers of the outer sliding rod and the inner sliding rod are coincident with the circle center of the upper hinge column, a cavity in the outer sliding rod is provided with a third spring, and the third spring is arranged between the outer sliding rod and the inner sliding rod.
When the sliding device is used, when the lower sliding rod at one side falls on the bulge on the ground and is bent upwards, the outer sliding sleeve and the inner sliding sleeve can be driven to rotate relatively, the sliding stability between the outer sliding sleeve and the inner sliding sleeve can be improved by arranging the second spring, when the unmanned aerial vehicle takes off, the lower hinge rod can be driven to reset through the elasticity of the second spring, so that the unmanned aerial vehicle is favorable for preparing for later landing, when the upper hinged rod on the right side rotates, the upper sliding rod and the lower sliding rod can be driven to rotate relatively, and the stability of relative sliding of the upper sliding rod and the lower sliding rod is realized by arranging the third spring, and the hinged rod on the right side can be blocked by the third spring to avoid the hinged rod from rotating towards the right side without limitation, as shown in fig. 9, as the angle of rotation of the hinge rod on the right side increases, the blocking force of the third spring on the hinge rod increases until the unmanned aerial vehicle finishes landing, the third spring can improve the stability of its support to unmanned aerial vehicle to the spacing of going up the hinge bar.
In a further aspect of the present invention, a through mounting hole is provided on an outer side of the mounting plate, and a fastening bolt is provided on the mounting hole.
When the unmanned aerial vehicle lands on the uneven ground, the lower hinge rod on the left side of the unmanned aerial vehicle bends upwards relative to the upper hinge rod and is parallel to the ground, the upper hinge rod on the right side drives the lower sliding rod to contact with the ground and rotate towards the right side together, the lower hinge rod bent on the left side and the upper hinge rod and the lower hinge rod rotating together on the right side support the unmanned aerial vehicle to land until the landing process of the unmanned aerial vehicle is completed, the unmanned aerial vehicle can well adapt to the uneven ground through the structure, so that the unmanned aerial vehicle can land conveniently, as shown in figure 10, the unmanned aerial vehicle is in another landing state, the lower hinge rod on the left side does not completely land on a bulge on the ground, the lower hinge rod on the left side needs to rotate by a larger angle, the lower hinge column is gradually contacted with the ground, and the upper hinge rod on the right side drives the lower hinge rod to contact with the ground and deflect, unmanned aerial vehicle's descending is accomplished through cooperation between them, avoids damaging it.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic view of the upper hinge rod and guide rod configuration of the present invention;
FIG. 4 is a schematic view of the bladder and slider attachment configuration of the present invention;
FIG. 5 is a schematic view of the connection structure of the upper sliding rod, the lower sliding rod and the connecting seat of the present invention;
FIG. 6 is an enlarged schematic view of FIG. 2 at A in accordance with the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 3B according to the present invention;
FIG. 8 is an enlarged view of FIG. 3 of the present invention;
FIG. 9 is a usage scenario diagram under state one of the present invention;
fig. 10 is a usage scenario diagram in state two of the present invention.
In the figure: 1. a rotating shaft; 2. a drum; 3. a lower hinge rod; 4. an outer sliding sleeve; 5. an inner sliding sleeve; 6. an upper hinge rod; 7. an outer slide bar; 8. an inner slide bar; 9. mounting a plate; 10. an upper hinge post; 11. a sliding rod is arranged; 12. a connecting seat; 13. a lower hinge post; 14. a first spring; 15. a lower sliding rod; 16. an air inlet pipe; 17. a baffle plate; 18. a first magnetic block; 19. a guide bar; 20. a second magnetic block; 21. a third magnetic block; 22. a slider; 23. an air outlet pipe; 24. an air bag; 25. a bump; 26. a fourth magnetic block; 27. a guide groove; 28. and a reciprocating screw rod.
Detailed Description
As shown in fig. 1-10, an unmanned aerial vehicle undercarriage that takes precautions against earthquakes, including mounting panel 9, the mounting panel 9 outside is provided with the mounting hole that link up, be provided with fastening bolt on the mounting hole and be convenient for the installation of mounting panel 9, and set up in last hinge bar 6 and lower hinge bar 3 of mounting panel 9 bottom, lower hinge bar 3 sets up in last hinge bar 6 bottom, and set up guide way 27 in mounting panel 9 inside, the inside sliding connection of guide way 27 has guide bar 19, guide bar 19 is arranged in 6 tops of last hinge bar, it is articulated mutually through lower hinge post 13 to go up hinge bar 6 bottom and 3 tops of lower hinge bar, and it is articulated mutually through last hinge bar 6 between last hinge bar 6 and the mounting panel 9, all be provided with the through-hole that runs through on last hinge post 10 and lower hinge post 13.
Further, a lower slide rod 15 is slidably arranged outside the lower hinge rod 3, an upper slide rod 11 is slidably connected outside the upper hinge rod 6, a connecting seat 12 is fixedly connected outside the upper hinge rod 6 and the lower hinge rod 3, and the upper slide rod 11 and the lower slide rod 15 penetrate through the connecting seat 12 and are slidably connected with the connecting seat 12.
A limiting plate is fixedly connected to the outer side of the lower hinge rod 3, a first spring 14 is arranged between the limiting plate and the connecting seat 12, and the first spring 14 is arranged on the outer side of the lower sliding rod 15.
During the actual installation, hinge post 13 and lower hinge bar 3 fixed connection down, hinge post 13 runs through hinge bar 6 and rotates with last hinge bar 6 to be connected down simultaneously, and the equal fixedly connected with riser in hinge bar 6 both sides is located to mounting panel 9 bottom, goes up hinge post 10 top and arranges in between two adjacent risers, and goes up hinge post 10 and runs through the riser and be fixed mutually with the riser, and simultaneously, goes up hinge post 10 and runs through hinge bar 6 and rotate with last hinge bar 6 and be connected.
During initial state, go up hinge bar 6 and hinge bar 3 down and be in same straight line, and go up the through-hole on the hinge post 13 down of slide bar 11 bottom, this moment because hinge post 13 and hinge bar 3 fixed connection down, consequently hinge bar 3 down can not rotate through the spacing of last slide bar 11, and simultaneously, the through-hole of hinge post 10 is passed on the top of going up slide bar 11, because it runs through the riser and is fixed mutually with the riser to go up hinge post 10, consequently, it also can not rotate relative to the riser to go up hinge bar 6, go up hinge bar 6 and hinge bar 3 down and all be in and be locked the state, articulated state between each other is locked, it does not have the difference with traditional unmanned aerial vehicle's undercarriage to go up hinge bar 6 and hinge bar 3 down this moment, can support unmanned aerial vehicle.
As shown in fig. 9-10, when the ground unevenness that unmanned aerial vehicle descended, traditional landing gear just can lose balance when falling to the ground, lead to losing balance after unmanned aerial vehicle descends, thereby lead to unmanned aerial vehicle to have the possibility of empting, and this scheme is for avoiding above-mentioned problem, install strong magnetic third magnetic block 21 on the top of lower slide bar 15, and the second magnetic block 20 of repelling each other with third magnetic block 21 is installed to the bottom of last slide bar 11, install fourth magnetic block 26 on the top of last slide bar 11, and first magnetic block 18 is installed to the one end that guide bar 19 is close to last slide bar 11.
When the sliding device is used, taking the state of fig. 9 as an example, when there is a rugged condition on the falling ground, the lower hinged rod 3 on the left side of the bottom of the mounting plate 9 will first contact with a raised part on the ground, at this time, the lower sliding rod 15 is pressed by the ground and slides upwards along the connecting base 12, the upper sliding rod 11 can be driven to press the connecting base 12 to move upwards by the repulsive force of the third magnetic block 21 at the top end of the lower sliding rod 15 to the second magnetic block 20 at the bottom end of the upper sliding rod 11, when the upper sliding rod 11 moves upwards, the guide rod 19 can be driven to slide rightwards inside the guide slot 27 by the repulsive force of the fourth magnetic block 26 to the first magnetic block 18 at one end of the guide rod 19 by the fourth magnetic block 26 at the other end of the guide rod 26, at this time, the upper sliding rod 11 on the right side can be driven to slide downwards along the connecting base 12 by the repulsive force of the first magnetic block 18 at the other end of the upper sliding rod 11, so that the upper sliding rod 11 on the right side is separated from the upper hinged column 10, at this time, the hinge state between the upper hinge lever 6 and the riser is activated so that the upper hinge lever 6 can rotate centering on the upper hinge post 10, and when the upper slide bar 11 slides downward, it still cooperates with the lower hinge post 13 to lock the upper hinge lever 6 and the lower hinge lever 3 on the right, at this time, as shown in fig. 9, the hinge state between the upper hinge lever 6 and the lower hinge lever 3 on the left side is activated in a state capable of relative rotation, the hinge state between the upper hinge lever 6 and the riser is still locked, and the hinge state between the upper hinge lever 6 and the riser on the right side is activated and can relative rotation, the upper hinge lever 6 and the lower hinge lever 3 on the right side are still locked, so that, when the drone lands on the uneven ground, the lower hinge lever 3 on the left side bends upward relative to the upper hinge lever 6, the upper hinge lever 6 on the right side drives the lower slide bar 15 to contact the ground and rotate together to the right side, at the moment, the lower hinged rod 3 with the bent left side and the upper hinged rod 6 and the lower hinged rod 3 with the right side rotating together support the unmanned aerial vehicle to land until the landing process of the unmanned aerial vehicle is completed, the structure can be well adapted to the uneven ground so as to facilitate the landing of the unmanned aerial vehicle, as shown in figure 10, the lower hinged rod 3 on the left side is in another landing state, the lower hinged rod 3 on the left side does not completely land on the bulge of the ground, the lower hinged rod 3 on the left side needs to rotate by a larger angle, so that the lower hinged column 13 is gradually contacted with the ground, and the upper hinged rod 6 on the same right side drives the lower hinged rod 3 to contact the ground and deflect, the landing of the unmanned aerial vehicle is completed through the matching of the lower hinged rod 3 and the upper hinged rod 6 on the right side, thereby avoiding the damage of the unmanned aerial vehicle,
and the third magnetic block 21 is urged to be close to the second magnetic block 20 by the upward movement of the lower slide bar 15, and a good damping effect can be achieved by the repulsive force of the third magnetic block and the second magnetic block.
Similarly, the process is similar to the above process when the lower slide bar 15 on the right side first falls to the ground.
And when landing ground is comparatively level and smooth, the lower slide bar 15 of both sides is close to simultaneously and falls to the ground, the lower slide bar 15 of both sides is pushed the rebound simultaneously this moment, make the upper slide bar 11 have the trend of rebound, and the repulsion force of the fourth magnetic path 26 at slide bar 11 top on the first magnetic path 18 to both sides through guide bar 19 both ends, slide bar 11 rebound on can assembling, thereby avoid the articulated state of upper hinge bar 6 and lower hinge bar 3 to be activated, at this moment, between upper hinge bar 6 and lower hinge bar 3, the articulated state of the piece of upper hinge bar 6 and riser all is in by the lock-up state, be equivalent to traditional undercarriage, can accomplish unmanned aerial vehicle's landing.
A limiting plate is arranged outside the lower sliding rod 15, so that the lower sliding rod 15 can be prevented from being separated from the connecting seat 12, and the first spring 14 can improve the motion stability of the lower sliding rod 15.
Further, in order to enable the upper hinge rod 6 and the lower hinge rod 3 to reset after the unmanned aerial vehicle takes off, the outer side of the lower hinge rod 3 is fixedly connected with an outer sheath, the outer side of the upper hinge rod 6 is fixedly connected with an inner sliding sleeve 5, both the outer sliding rod 7 and the inner sliding sleeve 5 are arranged in an arc shape, the circle centers of the outer sliding sleeve 4 and the inner sliding sleeve 5 are coincided with the circle center of the lower hinge column 13, so that the inner sliding sleeve 5 can slide along the cavity in the outer sliding sleeve 4, a second spring is arranged in the cavity in the outer sliding sleeve 4 and is arranged between the outer sliding sleeve 4 and the inner sliding sleeve 5, the top end of the outer side of the upper hinge rod 6 is fixedly connected with the outer sliding rod 7, the outer side of the mounting plate 9 is fixedly connected with a baffle 17, the bottom end of the baffle 17 is fixedly connected with an inner sliding rod 8, both the outer sliding rod 7 and the inner sliding rod 8 are arranged in an arc shape, and the circle centers of the outer sliding rod and the inner sliding rod 8 are coincided with the circle center of the upper hinge column 10, so that the inner sliding rod 8 can slide along the cavity in the outer sliding rod 7, and a third spring is arranged in the cavity inside the outer sliding rod 7 and is arranged between the outer sliding rod 7 and the inner sliding rod 8.
When the unmanned aerial vehicle landing device is used, when the lower sliding rod 15 on one side falls onto a bulge on the ground and is bent upwards, the outer sliding sleeve 4 and the inner sliding sleeve 5 can be driven to rotate relatively, the sliding stability between the outer sliding sleeve 4 and the inner sliding sleeve 5 can be improved by arranging the second spring, and when the unmanned aerial vehicle takes off, the lower hinge rod 3 can be driven to reset by the elastic force of the second spring, so that the preparation for later landing is facilitated, when the upper hinge rod 6 on the right side rotates, the upper sliding rod 11 and the lower sliding rod 15 can be driven to rotate relatively, the stability of the relative sliding between the upper sliding rod and the lower sliding rod can be improved by arranging the third spring, the upper hinge rod 6 on the right side can be blocked by the third spring, the unmanned aerial vehicle can be prevented from rotating towards the right side without limitation by the third spring, as shown in figure 9, the blocking force of the third spring to the upper hinge rod 6 is increased until the unmanned aerial vehicle finishes landing, and the stability of the unmanned aerial vehicle support can be improved by the third spring to the limitation of the upper hinge rod 6, and make its extrusion force increase to hinge bar 3 and last hinge bar 6 down through the second spring of chooseing for use different elasticity, be favorable to making hinge bar 3 rotate and keep static after the certain angle down, and in the same way, choose for use the great third spring of elasticity to make and go up hinge bar 6 and rotate and keep static after certain proofreading, can accomplish unmanned aerial vehicle's descending fast and improve its descending stability through cooperation between them, can also play good shock attenuation effect through second spring and third spring in addition.
As shown in fig. 2-4, a rotating shaft 1 is fixedly connected to the bottom end of the lower slide bar 15, a roller 2 is arranged between the two rotating shafts 1 on the same side, the diameter of the roller 2 is larger than that of the rotating shaft 1, the roller 2 is rotatably connected to the rotating shaft 1, a plurality of exhaust holes are arranged on the outer side surface of the roller 2, a sliding block 22 is slidably connected to the inner side of the roller 2, a convex block 25 is fixedly connected to the outer side of the sliding block 22, a sliding groove matched with the sliding block 22 is formed on the inner side wall of the roller 2, the sliding block 22 is slidably connected to the inner side of the sliding groove, air bags 24 are arranged on both sides of the sliding block 22, the right end of the air bag 24 close to the sliding block 22 is fixed to the sliding block 22, the other end of the air bag 24 is fixed to one end of the roller 2, an air outlet pipe 23 is arranged on the outer side of the air bag 24, a first check valve for one-way exhaust of air is arranged on the air outlet pipe 23, an air inlet pipe 16 is arranged on one end of the air bag 24 far from the sliding block 22, the air inlet pipe 16 penetrates through the rotating shaft 1 and extends to the outer side of the rotating shaft 1, a second one-way valve allowing air to enter in a one-way mode is arranged on the air inlet pipe 16, a reciprocating screw rod 28 is fixedly connected between the two rotating shafts 1 on the same side, a ball nut pair is meshed on the outer side of the reciprocating screw rod 28 and penetrates through the sliding block 22 and is fixedly connected with the sliding block 22, the air bag 24 is annular, and the reciprocating screw rod 28 penetrates through a through hole in the inner side of the air bag 24.
When the device is used, the roller 2 has a larger diameter relative to the rotating shaft 1, so the roller 2 can firstly contact the ground, when the lower sliding rod 15 deflects outwards, the roller 2 can be driven to roll on the ground, the roller 2 can be driven to rotate through the friction force of the ground facing the roller 2, the sliding groove on the inner wall of the roller 2 is matched with the convex block 25 on the outer side of the sliding block 22, so that the sliding block 22 can be driven to rotate by the rotation of the roller 2, the ball nut pair is driven to rotate, the ball nut pair is driven to move left and right on the reciprocating screw rod 28, when the sliding block 22 moves towards one side on the roller 2, the air bag 24 on one side can be extruded, so that the air in the air bag 24 is discharged through the air outlet pipe 23 and further discharged from the air outlet hole on the outer side of the roller 2, and the air discharged through the air outlet hole can blow away sharp stones and other impurities on the ground when the roller 2 rolls towards the outer side, can stop unmanned aerial vehicle more steadily on the one hand, cylinder 2 and stone contact produce vibrations when avoiding stopping, and on the other hand can protect cylinder 2, prolongs its life, and 24 volume increases of the gasbag of opposite side can be to supplementary gas in the gasbag 24 through intake pipe 16.
The working principle is as follows: when the ground falls and has unevenness, lower hinged rod 3 on the left side of the bottom of mounting plate 9 will first contact with the raised part on the ground, at this time, lower sliding rod 15 is pressed by the ground and slides upwards along connecting seat 12, through repulsion force of third magnetic block 21 on the top end of upper sliding rod 11 to second magnetic block 20 on the bottom end of lower sliding rod 15, upper sliding rod 11 can be driven to press connecting seat 12 to move upwards, when upper sliding rod 11 moves upwards, guide rod 19 can be driven to slide rightwards inside guide groove 27 by repulsion of fourth magnetic block 26 to first magnetic block 18 on one end of guide rod 19, at this time, when guide rod 19 slides rightwards, through repulsion of first magnetic block 18 on the other end to fourth magnetic block 26 on the top end of upper sliding rod 11 on the right side, upper sliding rod 11 on the right side can be driven to slide downwards along connecting seat 12, so as to make upper sliding rod 11 on the right side and upper hinged column 10 break away from contact, at this time, the hinge state between the upper hinge rod 6 and the riser is activated, so that the upper hinge rod 6 can rotate centering on the upper hinge post 10, and when the upper slide bar 11 slides downward, it still cooperates with the lower hinge post 13, so as to lock the upper hinge rod 6 and the lower hinge rod 3 on the right side, at this time, as shown in fig. 9, the hinge state between the upper hinge rod 6 and the lower hinge rod 3 on the left side is activated, in a state capable of relative rotation, the hinge state between the upper hinge rod 6 and the riser is still locked, and the hinge state between the upper hinge rod 6 and the riser on the right side is activated, in a state capable of relative rotation, the upper hinge rod 6 and the lower hinge rod 3 on the right side are still locked, so that, when the drone lands on the uneven ground, the lower hinge rod 3 on the left side thereof bends upward relative to the upper hinge rod 6 and is in a state parallel to the ground, slide bar 15 and ground contact are rotated to the right side together under last hinge bar 6 on right side drives, the crooked lower hinge bar 3 in left side this moment and the same pivoted last hinge bar 6 in right side and lower hinge bar 3 together support the unmanned aerial vehicle descending, accomplish until unmanned aerial vehicle descending process, can adapt to unevenness's ground well through this structure, thereby be convenient for unmanned aerial vehicle's descending, as shown in fig. 10, for another kind of descending state, left lower hinge bar 3 does not fall to the arch on ground completely, left lower hinge bar 3 need rotate great angle this moment, make hinge post 13 contact with ground gradually down, and hinge bar 3 contact ground and deflection under the same last hinge bar 6 drive of right side, accomplish unmanned aerial vehicle's descending through cooperation between them, avoid damaging it.
Claims (8)
1. The utility model provides an unmanned aerial vehicle undercarriage that takes precautions against earthquakes which characterized in that: the device comprises a mounting plate (9), an upper hinge rod (6) and a lower hinge rod (3) which are arranged at the bottom of the mounting plate (9), wherein a guide rod (19) is connected to the inside of the mounting plate (9) in a sliding manner, the upper hinge rod (6) and the lower hinge rod (3) are hinged through a lower hinge column (13), and the upper hinge rod (6) and the mounting plate (9) are hinged through the upper hinge rod (6);
slide bar (15) down in articulated mast (3) outside slip is provided with down, go up articulated mast (6) outside slip and be provided with slide bar (11), articulated mast (13) and articulated mast (3) fixed connection down, articulated mast (13) run through articulated mast (6) and rotate with last articulated mast (6) and be connected down simultaneously, mounting panel (9) bottom is located the equal fixedly connected with riser in articulated mast (6) both sides, it runs through the riser and is fixed mutually with the riser to go up articulated mast (10), and simultaneously, goes up articulated mast (10) and runs through articulated mast (6) and rotate with last articulated mast (6) and be connected.
2. The shockproof undercarriage for unmanned aerial vehicle of claim 1, wherein: guide slot (27) have been seted up to mounting panel (9) inside, guide bar (19) sliding connection is inside in guide slot (27).
3. The shockproof undercarriage for unmanned aerial vehicle of claim 1, wherein: go up articulated post (10) and all be provided with the through-hole that runs through on articulated post (13) down, go up slide bar (11) and pass the through-hole and with last articulated post (10) and articulated post (13) sliding connection down.
4. The shockproof undercarriage for unmanned aerial vehicle of claim 3, wherein: go up hinge bar (6) and lower hinge bar (3) the equal fixedly connected with connecting seat (12) in the outside, go up slide bar (11) and lower slide bar (15) all run through connecting seat (12) and with connecting seat (12) sliding connection, hinge bar (3) outside fixedly connected with limiting plate down, be provided with first spring (14) between limiting plate and connecting seat (12), first spring (14) set up in the slide bar (15) outside down.
5. The shockproof undercarriage for unmanned aerial vehicle of claim 1, wherein: the magnetic lock is characterized in that a third ferromagnetic magnet (21) is mounted at the top end of the upper sliding rod (11), a second magnet (20) which is mutually exclusive with the third magnet (21) is mounted at the bottom end of the upper sliding rod (11), a fourth magnet (26) is mounted at the top end of the upper sliding rod (11), and a first magnet (18) is mounted at one end, close to the upper sliding rod (11), of the guide rod (19).
6. The shockproof undercarriage for unmanned aerial vehicle of claim 1, wherein: the outer side of the lower hinged rod (3) is fixedly connected with an outer sheath, the outer side of the upper hinged rod (6) is fixedly connected with an inner sliding sleeve (5), the outer sliding rod (7) and the inner sliding sleeve (5) are both arranged in an arc shape, the circle centers of the outer sliding sleeve (4) and the inner sliding sleeve (5) are coincident with the circle center of the lower hinged column (13), a second spring is arranged in an inner cavity of the outer sliding sleeve (4), and the second spring is arranged between the outer sliding sleeve (4) and the inner sliding sleeve (5).
7. The shockproof undercarriage for unmanned aerial vehicle of claim 6, wherein: go up outer slide bar (7) of hinge bar (6) outside top fixedly connected with, mounting panel (9) outside fixedly connected with baffle (17), slide bar (8) in baffle (17) bottom fixedly connected with, outer slide bar (7) and interior slide bar (8) all set up to arc and its centre of a circle all with last hinge post (10) centre of a circle coincidence, outer slide bar (7) inside cavity department is provided with the third spring, and the third spring is arranged in between outer slide bar (7) and interior slide bar (8).
8. The shockproof undercarriage for unmanned aerial vehicle of claim 1, wherein: and a through mounting hole is formed in the outer side of the mounting plate (9), and a fastening bolt is arranged on the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345273.6A CN113911324A (en) | 2021-11-15 | 2021-11-15 | Unmanned aerial vehicle undercarriage that takes precautions against earthquakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345273.6A CN113911324A (en) | 2021-11-15 | 2021-11-15 | Unmanned aerial vehicle undercarriage that takes precautions against earthquakes |
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| CN113911324A true CN113911324A (en) | 2022-01-11 |
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| CN202111345273.6A Pending CN113911324A (en) | 2021-11-15 | 2021-11-15 | Unmanned aerial vehicle undercarriage that takes precautions against earthquakes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114671021A (en) * | 2022-03-22 | 2022-06-28 | 东南大学 | Unmanned aerial vehicle based on gesture control |
| US11794882B1 (en) * | 2022-08-14 | 2023-10-24 | SURVICE Engineering Company LLC | Shock absorption system for an unmanned aerial vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211996120U (en) * | 2020-04-08 | 2020-11-24 | 杭州明启勘测规划设计有限公司 | Four-wing unmanned aerial vehicle buffering undercarriage |
-
2021
- 2021-11-15 CN CN202111345273.6A patent/CN113911324A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211996120U (en) * | 2020-04-08 | 2020-11-24 | 杭州明启勘测规划设计有限公司 | Four-wing unmanned aerial vehicle buffering undercarriage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114671021A (en) * | 2022-03-22 | 2022-06-28 | 东南大学 | Unmanned aerial vehicle based on gesture control |
| US11794882B1 (en) * | 2022-08-14 | 2023-10-24 | SURVICE Engineering Company LLC | Shock absorption system for an unmanned aerial vehicle |
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