CN118047073B - Survey and drawing unmanned aerial vehicle shock attenuation undercarriage - Google Patents
Survey and drawing unmanned aerial vehicle shock attenuation undercarriage Download PDFInfo
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- CN118047073B CN118047073B CN202410423946.2A CN202410423946A CN118047073B CN 118047073 B CN118047073 B CN 118047073B CN 202410423946 A CN202410423946 A CN 202410423946A CN 118047073 B CN118047073 B CN 118047073B
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- 230000035939 shock Effects 0.000 title claims description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 238000013507 mapping Methods 0.000 claims abstract description 44
- 230000005641 tunneling Effects 0.000 claims abstract description 9
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Abstract
The invention belongs to the technical field of unmanned aerial vehicle landing gears, and particularly relates to a vibration-reducing landing gear of a surveying and mapping unmanned aerial vehicle, which comprises a surveying and mapping unmanned aerial vehicle main body, wherein a supporting mechanism is arranged at the bottom of the surveying and mapping unmanned aerial vehicle main body, four anti-falling assemblies distributed in a rectangular shape are arranged at the bottom of the supporting mechanism, an anti-sliding mechanism is arranged at the bottom of each anti-falling assembly, and when the unmanned aerial vehicle main body falls to an inclined ground, vibration generated when the surveying and mapping unmanned aerial vehicle main body falls is buffered by the anti-falling assemblies and the anti-sliding mechanism and buffer force is converted into power for the anti-sliding mechanism to rotate. According to the invention, by arranging the plurality of anti-slip mechanisms, when the anti-slip mechanism meets the inclined ground, the conical blocks rotating can drive the spiral tunneling She Zajin to the soil, so that the ground grabbing capability can be improved, the situation that the main body of the surveying and mapping unmanned aerial vehicle slides down or rolls is avoided, and in addition, the resilience force of the anti-slip mechanism on the main body of the surveying and mapping unmanned aerial vehicle can be reduced by converting the falling gravity of the main body of the surveying and mapping unmanned aerial vehicle into the power of the conical blocks rotating.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicle landing gears, in particular to a shock-absorbing landing gear for a surveying and mapping unmanned aerial vehicle.
Background
The unmanned plane is called as unmanned plane for short, is a unmanned plane operated by radio remote control equipment and a self-provided program control device, or is operated by a vehicle-mounted computer completely or intermittently and autonomously, the landing gear is an accessory device for supporting the unmanned plane when the lower part of the plane is used for taking off and landing or sliding on the ground and for moving on the ground, and the unmanned plane is widely applied to the fields of miniature self-timer, express delivery and transportation, disaster relief, wild animal observation, infectious disease monitoring, mapping, news report, power inspection, disaster relief, film and television shooting and the like.
But present survey unmanned aerial vehicle's undercarriage material is more rigid, there is the shock attenuation effect poor, the hidden danger that the landing effect is poor, can cause even unmanned aerial vehicle to damage, even normally land, the shock attenuation that can not reach the effect also can cause certain damage to the precision instruments that carries on the unmanned aerial vehicle, in addition, when using unmanned aerial vehicle survey and drawing in the field, if unmanned aerial vehicle need forced landing because of some reasons and when can't independently select forced landing place, if when meetting the slope, unmanned aerial vehicle can not stop steadily and appear along the circumstances that slope was glissade or roll, if meetting the mud, unmanned aerial vehicle also can direct submergence in the mud to cause unmanned aerial vehicle's damage, for this reason, proposes a survey unmanned aerial vehicle shock attenuation undercarriage.
Disclosure of Invention
The invention provides a shock-absorbing landing gear for a surveying and mapping unmanned aerial vehicle, which aims to solve the defects in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a survey and drawing unmanned aerial vehicle shock attenuation undercarriage, includes the survey and drawing unmanned aerial vehicle main part, the bottom of survey and drawing unmanned aerial vehicle main part is equipped with supporting mechanism, supporting mechanism's bottom is equipped with four anti-falling components that are the rectangle and distribute, anti-falling components's bottom is equipped with anti-skidding mechanism, when descending to the inclined ground, anti-falling components and anti-skidding mechanism will cushion the vibration when falling to the survey and drawing unmanned aerial vehicle main part and convert the buffer force into the power of anti-skidding mechanism rotation, when descending to soft ground, anti-falling components receives the dead weight of survey and drawing unmanned aerial vehicle main part and will take place deformation and prevent that the survey and drawing unmanned aerial vehicle main part from lasting to sink, and will cushion the impact force that the survey and drawing unmanned aerial vehicle main part was fallen through the deformation of anti-falling components.
Preferably, the supporting mechanism comprises four supporting legs fixedly connected with the bottom of the main body of the surveying and mapping unmanned aerial vehicle, the supporting mechanism further comprises two first pull rods which are arranged in parallel, two ends of the first pull rods are fixedly connected with the corresponding supporting legs respectively, connecting pipes are fixedly installed at the bottoms of the four supporting legs, and two second pull rods are fixedly installed between two anti-falling assemblies on the same axis.
Preferably, the anti-falling assembly comprises a connecting rod fixedly connected with the connecting pipe, a guide rod is arranged on the connecting rod in a penetrating type sliding manner, a top plate is fixedly arranged at the top end of the guide rod, a first spring is fixedly arranged between the top plate and the connecting rod, the first spring is sleeved on the guide rod in a sliding manner, and a unfolding mechanism is sleeved on the guide rod.
Preferably, the unfolding mechanism comprises an annular fixed block fixedly connected with the bottom of the connecting rod and an annular sliding block sleeved on the guide rod in a sliding manner, the guide rod penetrates through the annular fixed block and is in sliding connection with the annular fixed block, a plurality of umbrella rods distributed in a circumferential array are hinged to the annular sliding block, a plurality of unfolding arms distributed in a circumferential array are hinged to the annular fixed block, and the bottom ends of the unfolding arms are connected with the umbrella rods in a hinged manner.
Preferably, a second spring is fixedly arranged between the annular fixed block and the annular sliding block, the second spring is sleeved on the guide rod in a sliding mode, umbrella cloths are fixedly arranged between two adjacent umbrella rods, the two adjacent umbrella cloths are fixedly connected, bottoms of the umbrella cloths are fixedly connected with bottoms of the guide rods, an annular plate is fixedly arranged at the bottom of the annular sliding block, and the guide rod penetrates through the annular plate and is in sliding connection with the annular plate.
Preferably, the anti-slip mechanism comprises a round rod fixedly connected with the bottom end of the guide rod, a cylinder is sleeved on the upper sliding sleeve of the round rod, a conical block is fixedly arranged at the bottom end of the cylinder, a plurality of spiral guide grooves distributed in a circumferential array are formed in the side face of the round rod, and a plurality of spiral guide ribs matched with the spiral guide grooves are fixedly arranged on the inner wall of the cylinder.
Preferably, the circular groove is formed in the bottom of the circular rod, an annular block is fixedly installed in the circular groove, the bottom of the annular block is flush with the bottom of the circular rod, a circular shaft is installed in the annular block in a penetrating sliding mode, the bottom of the circular shaft is rotationally connected with the top of the conical block, a sliding plate which is in sliding connection with the inner wall of the circular groove is fixedly installed at the top end of the circular shaft, and a spring III which is sleeved on the circular shaft in a sliding mode is fixedly installed between the sliding plate and the annular block.
Preferably, spiral tunneling blades in spiral arrangement are fixedly arranged on the side face of the conical block.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the invention, by arranging the plurality of anti-slip mechanisms, when encountering inclined ground, the self-rotating conical blocks can drive spiral tunneling She Zajin soil, so that the ground grabbing capability can be improved, the situation that the main body of the surveying and mapping unmanned aerial vehicle slides down or rolls is avoided, and in addition, the resilience force of the anti-slip mechanisms on the main body of the surveying and mapping unmanned aerial vehicle can be reduced by converting the falling gravity of the main body of the surveying and mapping unmanned aerial vehicle into the self-rotating power of the conical blocks;
2. When falling to the mire, the guide arm in the anti-falling assembly can cushion the vibration that produces when surveying and mapping unmanned aerial vehicle main part whereabouts through deformation, and a plurality of umbrella cloths that original folding will expand and present the back toper form in addition, later will produce buoyancy after a plurality of umbrella cloths contact with the mire to support supporting mechanism and surveying and mapping unmanned aerial vehicle main part, avoided surveying and mapping unmanned aerial vehicle main part and mire contact, played the protection of preferred to surveying and mapping unmanned aerial vehicle main part.
Drawings
Fig. 1 is a schematic diagram of the whole structure of a shock-absorbing landing gear of a surveying and mapping unmanned aerial vehicle;
Fig. 2 is a schematic structural view of another direction of a shock-absorbing landing gear of the unmanned aerial vehicle according to the present invention;
fig. 3 is a schematic diagram of a partial structure of a shock-absorbing landing gear of a mapping unmanned aerial vehicle;
Fig. 4 is a schematic structural view of an anti-falling component and an anti-skid mechanism in a shock absorption landing gear of a mapping unmanned aerial vehicle;
fig. 5 is a schematic diagram of a partial structure of an anti-slip mechanism and an anti-drop assembly in a shock absorbing landing gear of a mapping unmanned aerial vehicle;
fig. 6 is an exploded view of the anti-skid mechanism in the shock absorbing landing gear of the unmanned aerial vehicle according to the invention;
fig. 7 is a schematic structural view of a round rod and a guide rod in a shock-absorbing landing gear of a surveying and mapping unmanned aerial vehicle.
In the figure: 1. mapping an unmanned aerial vehicle main body; 2. a support mechanism; 21. a support leg; 22. a first pull rod; 23. a connecting pipe; 24. a second pull rod; 3. an anti-falling assembly; 31. a connecting rod; 32. a guide rod; 33. a deployment mechanism; 331. an annular fixed block; 332. an annular slide block; 333. an umbrella stick; 334. a second spring; 335. a deployment arm; 34. a top plate; 35. a first spring; 36. umbrella cloth; 37. an annular plate; 4. an anti-slip mechanism; 41. a round bar; 411. a spiral guide groove; 412. a circular groove; 42. a cylinder; 421. spiral guide ribs; 43. conical blocks; 44. an annular block; 45. a circular shaft; 46. a slide plate; 47. a third spring; 48. and (5) spiral tunneling leaves.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
1-7, Including survey unmanned aerial vehicle main part 1, the bottom of survey unmanned aerial vehicle main part 1 is equipped with supporting mechanism 2, the bottom of supporting mechanism 2 is equipped with four anti-drop components 3 that are the rectangle and distribute, anti-drop component 3's bottom is equipped with anti-skidding mechanism 4, when falling to the slope ground, anti-drop component 3 and anti-skidding mechanism 4 will cushion the vibration when the survey unmanned aerial vehicle main part 1 falls and become the power of anti-skidding mechanism 4 rotation with the buffering power, when falling to soft ground, anti-drop component 3 receives the dead weight of survey unmanned aerial vehicle main part 1 and will take place deformation and prevent survey unmanned aerial vehicle main part 1 to continue to sink, and will cushion the impact force that the survey unmanned aerial vehicle main part 1 was fallen through the deformation of anti-drop component 3.
The supporting mechanism 2 comprises four supporting legs 21 fixedly connected with the bottom of the surveying and mapping unmanned aerial vehicle body 1, the supporting mechanism 2 further comprises two first pull rods 22 which are arranged in parallel, two ends of each first pull rod 22 are fixedly connected with the corresponding supporting legs 21 respectively, connecting pipes 23 are fixedly installed at the bottoms of the four supporting legs 21 respectively, and two second pull rods 24 are fixedly installed between the two anti-falling assemblies 3 on the same axis.
The anti-falling assembly 3 comprises a connecting rod 31 fixedly connected with a connecting pipe 23, a guide rod 32 is arranged on the connecting rod 31 in a penetrating and sliding manner, a top plate 34 is fixedly arranged at the top end of the guide rod 32, a first spring 35 is fixedly arranged between the top plate 34 and the connecting rod 31, the first spring 35 is arranged on the guide rod 32 in a sliding manner in a sleeved manner, and a spreading mechanism 33 is arranged on the guide rod 32 in a sleeved manner.
The unfolding mechanism 33 comprises an annular fixed block 331 fixedly connected with the bottom of the connecting rod 31 and an annular sliding block 332 sleeved on the guide rod 32 in a sliding manner, the guide rod 32 penetrates through the annular fixed block 331 and is in sliding connection with the annular fixed block 331, a plurality of umbrella rods 333 distributed in a circumferential array are hinged to the annular sliding block 332, a plurality of unfolding arms 335 distributed in a circumferential array are hinged to the annular fixed block 331, the bottom ends of the unfolding arms 335 are connected with the umbrella rods 333 in a hinged manner, telescopic clamping pins are arranged on the guide rod 32 in an embedded manner, the telescopic clamping pins are contracted when the annular sliding block 332 passes through the telescopic clamping pins, and when the annular sliding block 332 passes over the telescopic clamping pins, the telescopic clamping pins reset and block the annular sliding block 332 from moving downwards, and the telescopic clamping pins can also be manually operated through manual operation.
A second spring 334 is fixedly arranged between the annular fixed block 331 and the annular sliding block 332, the second spring 334 is sleeved on the guide rod 32 in a sliding mode, umbrella cloths 36 are fixedly arranged between two adjacent umbrella rods 333, the two adjacent umbrella cloths 36 are fixedly connected, bottoms of the umbrella cloths 36 are fixedly connected with bottoms of the guide rod 32, an annular plate 37 is fixedly arranged at the bottom of the annular sliding block 332, and the guide rod 32 penetrates through the annular plate 37 and is in sliding connection with the annular plate 37.
The anti-slip mechanism 4 comprises a round rod 41 fixedly connected with the bottom end of the guide rod 32, a cylinder 42 is sleeved on the upper sliding sleeve of the round rod 41, a conical block 43 is fixedly arranged at the bottom end of the cylinder 42, a plurality of spiral guide slots 411 distributed in a circumferential array are formed in the side face of the round rod 41, and a plurality of spiral guide ribs 421 matched with the plurality of spiral guide slots 411 are fixedly arranged on the inner wall of the cylinder 42.
Further, when the distance between the top ends of the plurality of umbrella rods 333 is the minimum, the unfolding mechanism 33 is completely in the contracted state, and at this time, when the surveying unmanned aerial vehicle body 1 flies, the unfolding mechanism 33 in the contracted state does not generate larger wind resistance to the flying of the surveying unmanned aerial vehicle body 1, and at the same time, the top end of the cylinder 42 is in close contact with the bottom of the annular plate 37.
The bottom of round bar 41 has seted up circular slot 412, and circular slot 412 internally fixed mounting has annular piece 44, and annular piece 44's bottom and circular bar 41 bottom parallel and level, run through slidable mounting in the annular piece 44 has round axle 45, and round axle 45's bottom and circular cone 43 top rotate to be connected, and round axle 45's top fixed mounting has slide 46 with circular slot 412 inner wall sliding connection, and slide 46 and annular piece 44 between fixed mounting have the spring three 47 of slip cap on round axle 45.
Further, when the anti-skid mechanism 4 is suspended, the space between the sliding plate 46 and the annular block 44 is minimum, and when the round rod 41 goes deep into the cylinder 42, the space between the sliding plate 46 and the annular block 44 is increased and the spring III 47 is stretched.
Spiral tunneling blades 48 which are spirally arranged are fixedly arranged on the side face of the conical block 43.
Further, the spiral tunneling blades 48 can be easily screwed into the soil by matching with the rotation of the conical blocks 43, and the spiral tunneling blades 48 can also improve the ground grabbing capability of the conical blocks 43 after being inserted into the soil.
In this embodiment: when the device is used, when the device descends to the horizontal ground or the inclined ground, the tips at the bottoms of the conical blocks 43 on the four anti-skid mechanisms 4 are firstly contacted with the ground, then after the surveying and mapping unmanned aerial vehicle main body 1 descends, the round rod 41 is penetrated into the cylinder 42 under the action of gravity, in the process, the compressed spring III 47 is used for buffering vibration generated when the surveying and mapping unmanned aerial vehicle main body 1 descends, and meanwhile, the surveying and mapping unmanned aerial vehicle main body 1 drives the connecting rod 31 to move downwards, so that the space between the annular fixed block 331 and the annular sliding block 332 is reduced to compress the guide rod 32 and the connecting rod 31 is moved downwards to stretch the spring I35, and therefore vibration generated when the surveying and mapping unmanned aerial vehicle main body 1 descends is secondarily buffered;
under the cooperation of a plurality of groups of spiral guide slots 411 and spiral guide ribs 421, the cylinder 42 drives the conical block 43 to rotate, and when the inclined ground is met, the rotating conical block 43 drives the spiral tunneling blades 48 to be pricked into the soil, so that the ground grabbing capability can be improved, and the situation that the main body 1 of the surveying and mapping unmanned aerial vehicle slides down or rolls over is avoided;
When the unmanned aerial vehicle falls onto the mud pit, the whole anti-skid mechanism 4 is completely immersed into the mud pit, the sinking speed of the annular plate 37 is very slow because the contact surface of the annular plate 37 is large, the sinking speed of the anti-skid mechanism 4 is larger than the sinking speed of the annular plate 37, the annular plate 37 is used as a reference object, the annular fixed block 331 is driven to move downwards by the surveying and mapping unmanned aerial vehicle main body 1 through the connecting rod 31, and the spring II 334 is compressed, so that vibration generated when the surveying and mapping unmanned aerial vehicle main body 1 falls can be buffered;
In addition, the plurality of unfolding arms 335 are pushed to unfold in the process of moving down the annular fixed block 331, the distance between the bottom ends of the two adjacent unfolding arms 335 is increased in the process of unfolding the plurality of unfolding arms 335, the plurality of umbrella rods 333 which are gathered originally are overturned by taking the annular sliding block 332 as the circle center, the plurality of umbrella cloths 36 which are folded originally are unfolded to be in an inverted conical shape along with the increase of the distance between the top ends of the plurality of umbrella rods 333, and in the process, the annular sliding block 332 passes over the telescopic bayonet lock, so that the plurality of umbrella cloths 36 are ensured to be in an unfolding state all the time, and then buoyancy is generated after the plurality of umbrella cloths 36 are contacted with the mud, so that the supporting mechanism 2 and the main body 1 of the surveying and mapping unmanned aerial vehicle are supported, and the main body 1 of the surveying and mapping unmanned aerial vehicle is prevented from being contacted with the mud.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. Survey and drawing unmanned aerial vehicle shock attenuation undercarriage, including survey and drawing unmanned aerial vehicle main part (1), its characterized in that: the automatic surveying and mapping unmanned aerial vehicle comprises a surveying and mapping unmanned aerial vehicle body (1), wherein a supporting mechanism (2) is arranged at the bottom of the surveying and mapping unmanned aerial vehicle body (1), four anti-falling assemblies (3) which are rectangular in distribution are arranged at the bottom of the supporting mechanism (2), anti-sliding mechanisms (4) are arranged at the bottom of each anti-falling assembly (3), when the surveying and mapping unmanned aerial vehicle body (1) falls to an inclined ground, vibration of the surveying and mapping unmanned aerial vehicle body (1) is buffered, buffering force is converted into power for the anti-sliding mechanisms (4) to rotate, when the surveying and mapping unmanned aerial vehicle body falls to a soft ground, the anti-falling assemblies (3) are deformed by the dead weight of the surveying and mapping unmanned aerial vehicle body (1) to prevent the surveying and mapping unmanned aerial vehicle body (1) from continuously sinking, and the impact force of the surveying and mapping unmanned aerial vehicle body (1) falling is buffered through deformation of the anti-falling assemblies (3).
The supporting mechanism (2) comprises four supporting legs (21) fixedly connected with the bottom of the surveying and mapping unmanned aerial vehicle main body (1), the supporting mechanism (2) further comprises two first pull rods (22) which are arranged in parallel, two ends of the first pull rods (22) are fixedly connected with the corresponding supporting legs (21) respectively, connecting pipes (23) are fixedly arranged at the bottoms of the four supporting legs (21), and two second pull rods (24) are fixedly arranged between the two anti-falling assemblies (3) which are positioned on the same axis;
The anti-falling assembly (3) comprises a connecting rod (31) fixedly connected with the connecting pipe (23), a guide rod (32) is arranged on the connecting rod (31) in a penetrating and sliding mode, a top plate (34) is fixedly arranged at the top end of the guide rod (32), a first spring (35) is fixedly arranged between the top plate (34) and the connecting rod (31), the first spring (35) is arranged on the guide rod (32) in a sliding mode in a sleeved mode, and an unfolding mechanism (33) is arranged on the guide rod (32) in a sleeved mode;
The anti-slip mechanism (4) comprises a round rod (41) fixedly connected with the bottom end of the guide rod (32), a cylinder (42) is sleeved on the upper sliding sleeve of the round rod (41), a conical block (43) is fixedly arranged at the bottom end of the cylinder (42), a plurality of spiral guide grooves (411) distributed in a circumferential array are formed in the side face of the round rod (41), and a plurality of spiral guide ribs (421) matched with the plurality of spiral guide grooves (411) are fixedly arranged on the inner wall of the cylinder (42);
The bottom of the round rod (41) is provided with a round groove (412), an annular block (44) is fixedly arranged in the round groove (412), the bottom of the annular block (44) is flush with the bottom of the round rod (41), a round shaft (45) is arranged in the annular block (44) in a penetrating sliding manner, the bottom of the round shaft (45) is rotationally connected with the top of the conical block (43), the top end of the round shaft (45) is fixedly provided with a sliding plate (46) which is in sliding connection with the inner wall of the round groove (412), and a spring III (47) which is sleeved on the round shaft (45) in a sliding manner is fixedly arranged between the sliding plate (46) and the annular block (44);
Spiral tunneling blades (48) which are spirally arranged are fixedly arranged on the side surfaces of the conical blocks (43).
2. The survey unmanned aerial vehicle shock absorbing landing gear of claim 1, wherein: the unfolding mechanism (33) comprises an annular fixed block (331) fixedly connected with the bottom of the connecting rod (31) and an annular sliding block (332) sleeved on the guide rod (32), the guide rod (32) penetrates through the annular fixed block (331) and is in sliding connection with the annular fixed block (331), a plurality of umbrella rods (333) distributed in a circumferential array are hinged on the annular sliding block (332), a plurality of unfolding arms (335) distributed in a circumferential array are hinged on the annular fixed block (331), and the bottom ends of the unfolding arms (335) are connected with the umbrella rods (333) in a hinged mode.
3. The survey unmanned aerial vehicle shock absorbing landing gear of claim 2, wherein: the annular fixed block (331) and the annular sliding block (332) are fixedly provided with a second spring (334), the second spring (334) is sleeved on the guide rod (32) in a sliding mode, two adjacent umbrella rods (333) are fixedly provided with umbrella cloths (36), two adjacent umbrella cloths (36) are fixedly connected, bottoms of the umbrella cloths (36) are fixedly connected with the bottoms of the guide rod (32), the annular sliding block (332) is fixedly provided with an annular plate (37), and the guide rod (32) penetrates through the annular plate (37) and is in sliding connection with the annular plate (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410423946.2A CN118047073B (en) | 2024-04-10 | Survey and drawing unmanned aerial vehicle shock attenuation undercarriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410423946.2A CN118047073B (en) | 2024-04-10 | Survey and drawing unmanned aerial vehicle shock attenuation undercarriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118047073A CN118047073A (en) | 2024-05-17 |
| CN118047073B true CN118047073B (en) | 2024-06-21 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825652A (en) * | 1955-09-19 | 1959-12-16 | Snecma | Improvements in landing devices for aircraft which take-off and land vertically |
| CN111717376A (en) * | 2020-06-29 | 2020-09-29 | 周田英 | Unmanned aerial vehicle protection device with supplementary device of taking off |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825652A (en) * | 1955-09-19 | 1959-12-16 | Snecma | Improvements in landing devices for aircraft which take-off and land vertically |
| CN111717376A (en) * | 2020-06-29 | 2020-09-29 | 周田英 | Unmanned aerial vehicle protection device with supplementary device of taking off |
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