CN209870726U - Many rotor unmanned aerial vehicle undercarriage of imitative bird - Google Patents
Many rotor unmanned aerial vehicle undercarriage of imitative bird Download PDFInfo
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- CN209870726U CN209870726U CN201920716789.9U CN201920716789U CN209870726U CN 209870726 U CN209870726 U CN 209870726U CN 201920716789 U CN201920716789 U CN 201920716789U CN 209870726 U CN209870726 U CN 209870726U
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- 210000000078 claw Anatomy 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 17
- 125000006850 spacer group Chemical group 0.000 claims description 19
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 210000001364 upper extremity Anatomy 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000003141 lower extremity Anatomy 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses an artificial bird multi-rotor unmanned aerial vehicle undercarriage, which comprises a connecting frame, wherein the connecting frame comprises two left side rods, each left side rod is respectively connected with a cam through an upper side rod and a lower side rod, and the upper side rod and the lower side rod and the corresponding left side rod and cam form a group of parallelogram mechanisms; the bottom of each cam is provided with a guide rod, the left side and the right side of the installation rod at the bottom end of the guide rod are respectively provided with a spring leaf claw, the two spring leaf claws extend downwards along the left side and the right side of the installation rod in an inclined mode, the inner end of an upper leaf body of each spring leaf claw is connected with the installation rod, the inner end of a lower leaf body of each spring leaf claw is installed on a second pressing block, the top of each second pressing block is connected with a pull rope, and the pull rope upwards passes through a channel in the guide rod and then bypasses a sliding groove in the corresponding cam to be fixed on. Compared with the prior art, the utility model has the following advantages: can satisfy unmanned aerial vehicle's requirement of taking off and land subaerial, again can the centre gripping on grabbing the thing, can alleviate the vibration simultaneously.
Description
Technical Field
The utility model relates to a many rotor unmanned aerial vehicle technical field especially relates to an imitative many rotor unmanned aerial vehicle undercarriage of bird.
Background
A multi-rotor unmanned aerial vehicle is a special unmanned helicopter with three or more rotor shafts, wherein a motor on each shaft rotates to drive a rotor, so that the lift force is generated, and the total distance of the rotors is fixed and is not variable like a common helicopter. Through changing the relative speed between the different rotors, the size of unipolar propulsive force can be changed to the orbit of control aircraft. Based on this, many rotor unmanned aerial vehicle nature controlled is strong, but VTOL and hover, mainly be applicable to low latitude, low-speed, have the task type of VTOL and hover requirement. Through installing camera equipment on unmanned aerial vehicle, many rotor unmanned aerial vehicle can be applied to fields such as investigation, post-disaster search and rescue.
When the multi-rotor unmanned aerial vehicle lands, the multi-rotor unmanned aerial vehicle generally supports and lands through four supporting points at the bottom of the multi-rotor unmanned aerial vehicle, the unmanned aerial vehicle cannot be parked on branches or other columnar objects due to the structure, and the application range of the unmanned aerial vehicle is severely limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a many rotor unmanned aerial vehicle undercarriage of imitative bird to can satisfy unmanned aerial vehicle in the requirement of subaerial take-off and landing, again can the centre gripping on the thing is got to the grabbing of certain size, can alleviate the vibration at the decline in-process simultaneously.
The utility model discloses a realize through following technical scheme:
a bird-imitating multi-rotor unmanned aerial vehicle undercarriage comprises a connecting frame movably connected with the bottom of an unmanned aerial vehicle, wherein the connecting frame comprises two left side rods which extend downwards and are parallel to each other in the front and back direction, each left side rod is connected with a cam through an upper side rod and a lower side rod which are parallel to each other in the up-down direction, the two cams are fixedly connected together through a first connecting rod, a circle of sliding groove is formed in the circumferential edge of each cam, the left ends and the right ends of the upper side rod and the lower side rod are respectively in rotating connection with the corresponding left side rod and the corresponding cam, and the upper side rod and the lower side rod, the corresponding left side rod and the corresponding cam; a first pressing block is further arranged between the upper side rod and the lower side rod in each group of parallelogram mechanisms, and the upper end and the lower end of the first pressing block are respectively in rotating connection with the upper side rod and the lower side rod;
the bottom of each cam is provided with a guide rod extending obliquely downwards to the left, the guide rods at the bottoms of the two cams are arranged in parallel front and back, each guide rod is a hollow rod with a channel arranged therein, the bottom end of each guide rod is provided with a section of mounting rod extending downwards, the left side and the right side of each mounting rod are respectively provided with a spring leaf claw, the left spring leaf claw and the right spring leaf claw respectively extend downwards along the left side and the right side of the mounting rod in an inclined manner, each spring leaf claw consists of an upper leaf body, a lower leaf body and a plurality of connecting sheets connecting the upper leaf body and the lower leaf body, the outer ends of the upper leaf body and the lower leaf body of each spring leaf claw are connected into a whole, the inner end of the upper leaf body of each spring leaf claw is connected with the corresponding mounting rod, the inner end of the lower leaf body of each spring leaf claw is arranged on a second pressing block, the second pressing block is positioned below the, the pull rope upwards passes through a channel in the guide rod and then bypasses a sliding groove on the corresponding cam to be fixed on the first pressing block;
under the natural state, the spring leaf claws are straight; when the cam in the parallelogram mechanism is rotated by external force, the convex part on the cam drives the pull rope to rise, so that the lower piece body of the spring leaf claws is driven to contract inwards to deform, and the whole spring leaf claws contract inwards to automatically grab objects; when the cam in the parallelogram mechanism returns, the spring leaf claws can automatically rebound.
Furthermore, two left side rods of the connecting frame are fixedly connected together through a second connecting rod, and two guide rods are fixedly connected together through a third connecting rod.
Furthermore, the bottom of the lower sheet body of the spring piece claw is provided with a rubber pad.
Furthermore, be equipped with left spacer pin on the pole of the left side, left side spacer pin is located between upper limb pole and the lower limb pole and is close to the upper limb pole, left side spacer pin is used for limiting the upper limb pole and carries out clockwise pivoted turned angle around its articulated shaft with the left limb pole as the axis.
Furthermore, be equipped with right spacer pin on the cam, right spacer pin is located between upper limb pole and the lower limb pole and is close to the upper limb pole, right spacer pin is used for restricting the cam and carries out clockwise pivoted turned angle around its articulated shaft with the left limb pole as the axis.
Furthermore, the left ends of the upper side rod and the lower side rod are respectively connected with the left side rod in a rotating manner through a left pin shaft; the right ends of the upper side rod and the lower side rod are respectively connected with the cam in a rotating mode through a right pin shaft.
Furthermore, the upper end and the lower end of the first pressing block are matched through bolts and nuts respectively, and the first pressing block is connected with the upper side rod and the lower side rod in a rotating mode.
Furthermore, the upper end of the pull rope is fixed on the first compression block through a first compression screw, the upper sheet body of the spring piece claw is fixed on the mounting rod through a second compression screw, and the lower sheet body of the spring piece claw is fixed on the second compression block through a third compression screw.
Further, linking frame still includes two installation hypotenuse poles, fourth connecting rod, and two installation hypotenuse pole bottom leanings and respectively with two left side pole top fixed connection as an organic whole, two installation hypotenuse pole tops are passed through the fourth connecting rod is connected as an organic wholely, be equipped with the unmanned aerial vehicle connecting piece that is connected with unmanned aerial vehicle on the fourth connecting rod.
Compared with the prior art, the utility model has the following advantages:
the utility model provides a bird-like multi-rotor unmanned aerial vehicle undercarriage, the function is diversified, its parallelogram mechanism is similar to the shank structure of birds, when the spring leaf paw meets and catches the thing in the unmanned aerial vehicle landing process, parallelogram mechanism can rotate relatively, make spring leaf paw contract inwards through driving the stay cord and catch on catching the thing, when unmanned aerial vehicle takes off, parallelogram mechanism can reverse relative rotation, so that the spring leaf paw is loosened; the spring leaf claws are made of spring leaf materials, can deform under the action of external force, can automatically recover the original shape when the external force is removed, and can contract inwards or expand outwards according to different landing surfaces so that the unmanned aerial vehicle can land stably; the application range of the unmanned aerial vehicle is greatly expanded. The utility model discloses guaranteed that many rotor unmanned aerial vehicle undercarriage's function is complete, the suitability is strong and simple structure, and the effect is showing.
Drawings
Fig. 1 is a schematic structural diagram of the present invention in a natural state.
Fig. 2 is an enlarged view of a parallelogram mechanism portion of the present invention.
Fig. 3 is an enlarged view of the claw portion of the spring piece of the present invention.
Fig. 4 is a schematic structural view of the present invention clamped on the columnar grabber.
Fig. 5 is a schematic structural view of the present invention falling on the flat ground.
Reference numbers in the figures: 1 unmanned aerial vehicle connecting piece, 2 fourth connecting rods, 3 installation hypotenuse poles, 4 left hairpin pins, 5 left round pin axles, 6 second connecting rods, 7 left spacer pins, 8 upper side poles, 9 lower side poles, 10 nuts, 11 bolts, 12 first compact heap, 13 first housing screw, 14 stay cords, 15 right hairpin pins, 16 right round pin axles, 17 first connecting rods, 18 cams, 19 right spacer pins, 20 third connecting rods, 21 left side poles, 22 second housing screw, 23 spring leaf claws, 24 second compact heap, 25 third housing screw, 26 rubber pad, 27 grab thing, 28 guide arms, 29 upper sheet bodies, 30 lower sheet bodies, 31 connecting pieces.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Referring to fig. 1 to 5, this embodiment discloses an imitative bird many rotor unmanned aerial vehicle undercarriage, including the linking frame with unmanned aerial vehicle bottom swing joint, linking frame includes downwardly extending and front and back parallel two left poles 21, is in the same place through second connecting rod 6 fixed connection between two left poles 21 of linking frame. The connecting frame further comprises two installation bevel rods 3 and a fourth connecting rod 2, the bottom ends of the two installation bevel rods 3 are inclined towards the left and are respectively fixedly connected with the top ends of the two left rods 21 into a whole, and the top ends of the two installation bevel rods 3 are connected into a whole through the fourth connecting rod 2. Be equipped with the unmanned aerial vehicle connecting piece 1 that is connected with unmanned aerial vehicle on the fourth connecting rod 2, accessible spherical pair is connected between this unmanned aerial vehicle connecting piece 1 and the unmanned aerial vehicle for can rotate relatively within a certain limit between connection frame and the unmanned aerial vehicle.
Each left side rod 21 is respectively connected with one cam 18 through an upper side rod and a lower side rod which are parallel up and down, the two cams 18 are fixedly connected together through a first connecting rod 17, a circle of sliding groove is formed in the circumferential edge of each cam 18, the left end and the right end of each upper side rod 8 and each lower side rod 9 are respectively and rotatably connected with the corresponding left side rod 21 and the corresponding cam 18, wherein the left ends of the upper side rods 8 and the lower side rods 9 are respectively and rotatably connected with the left side rods 21 through left pin shafts 5, and are limited and prevented from falling through left hairpin pins 4; the right ends of the upper side rod 8 and the lower side rod 9 are respectively connected with the cam 18 in a rotating way through a right pin shaft 16, and are limited and prevented from falling through a right hairpin pin 15. The upper side rod 8 and the lower side rod 9, the corresponding left side rod 21 and the cam 18 form a group of parallelogram mechanisms; still be provided with a first compact heap 12 between last pole 8 and the lower extreme 9 in every parallelogram mechanism of group, both ends rotate with last pole 8 and lower extreme 9 respectively about first compact heap 12 and are connected, and both ends are respectively through bolt 11 and nut 10 cooperation about first compact heap 12, realize that first compact heap 12 is connected with the rotation of last pole 8, lower extreme 9.
Be equipped with left spacer pin 7 on the pole 21 of left side, left spacer pin 7 is located between upper limit pole 8 and the lower limb 9 and is close to upper limit pole 8, and left spacer pin 7 is used for limiting upper limit pole 8 and carries out clockwise pivoted turned angle around its articulated shaft with left side pole 21 as the axis. The cam 18 is provided with a right limit pin 19, the right limit pin 19 is positioned between the upper side rod 8 and the lower side rod 9 and is close to the upper side rod 8, and the right limit pin 19 is used for limiting the rotation angle of the cam 18 which rotates clockwise around the hinge shaft of the cam 18 and the left side rod 21.
The bottom of each cam 18 is provided with a guide rod 28 extending obliquely towards the lower left, and the two guide rods 28 are fixedly connected together through a third connecting rod 20. The guide rods 28 at the bottoms of the two cams 18 are arranged in parallel front and back, each guide rod 28 is a hollow rod with a channel arranged inside, the bottom end of each guide rod 28 is provided with a section of mounting rod extending downwards, the left side and the right side of each mounting rod are respectively provided with a spring leaf claw 23, the left spring leaf claw 23 and the right spring leaf claw 23 respectively extend downwards along the left side and the right side of the mounting rod in an inclined manner, each spring leaf claw 23 consists of an upper sheet body 29, a lower sheet body 30 and a plurality of connecting sheets 31 connecting the upper sheet body 29 and the lower sheet body 30, the outer ends of the upper sheet body 29 and the lower sheet body 30 of each spring leaf claw 23 are connected into a whole, the inner end of the upper sheet body 29 of each spring leaf claw 23 is connected with the corresponding mounting rod through a second compression screw 22, and the bottom of the lower sheet. The inner end of the lower piece body 30 of the spring piece claw 23 is arranged on the second pressing block 24 through a third pressing screw 25, the second pressing block 24 is positioned below the mounting rod, the top of the second pressing block 24 is connected with a pull rope 14, and the pull rope 14 can be a steel wire rope. The pulling rope 14 passes through the channel in the guide rod 28 upwards, then bypasses the sliding groove on the corresponding cam 18 and is fixed on the first pressing block 12, and the upper end of the pulling rope 14 is fixed on the first pressing block 12 through the first pressing screw 13.
In a natural state, the spring piece claws 23 are straight; when the cam 18 in the parallelogram mechanism is rotated by external force, the convex part on the cam 18 drives the pull rope 14 to rise, so as to drive the lower piece body 30 of the spring leaf claw 23 to contract inwards and deform, and the whole spring leaf claw 23 contracts inwards to automatically grab on the grabber 27; the spring plate prongs 23 will automatically spring back when the cam 18 in the parallelogram mechanism is returned.
See fig. 1, is the structural schematic under the undercarriage free state, and the undercarriage passes through unmanned aerial vehicle connecting piece 1 on parallelogram mechanism upper portion and connects on many rotor unmanned aerial vehicle, and at many rotor unmanned aerial vehicle flight in-process, the undercarriage can have flagging trend under the effect of self gravity, and left spacer pin 7 and right spacer pin 19 make the flagging of undercarriage keep certain angle to do benefit to the descending at the back.
Referring to fig. 4, when the multi-rotor drone lands on the cylindrical grabber 27, the upper part of the inner side of the lower piece 30 of the leaf spring claws 23 first contacts the grabber 27, the falling tendency of the landing gear is limited, under the action of the gravity of the unmanned aerial vehicle and the self-weight of the landing gear, the parallelogram mechanism can rotate relatively and compress, the cam 18 can rotate by a small angle along the clockwise direction, the convex part of the cam 18 rotates to the top, thereby pulling the pulling rope 14 upwards, the pulling rope 14 drives the second pressing block 24 to rise, the lower sheet body 30 of the spring piece claw 23 contracts inwards under the pulling force of the pulling rope 14, and similarly, the upper sheet body 29 of the spring piece claw 23 also contracts inwards under the driving of the lower sheet body 30, the grabber 27 is gripped by the friction provided by the rubber pad 26 until the second hold-down block 24 is stopped at the highest position, at which time the landing gear is smoothly grabbed on the grabber 27. When the unmanned aerial vehicle takes off, the spring leaf paw 23 of undercarriage is automatic to loosen.
Refer to fig. 5, need descend subaerial when many rotor unmanned aerial vehicle, this moment be the lower extreme of the lower lamellar body 30 inboard of spring leaf claw 23 contact ground earlier, and then under unmanned aerial vehicle gravity and undercarriage dead weight's effect, whole spring leaf claw 23 can outwards expand, the elastic force that produces from this can resist the pulling force of stay cord 14, prevent its slip, finally, unmanned aerial vehicle gravity, the undercarriage dead weight, the pulling force of stay cord 14, the elastic force of spring leaf claw 23 and the holding power on ground can reach balanced state, unmanned aerial vehicle descends and accomplishes.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides an imitative many rotor unmanned aerial vehicle undercarriage of bird, includes the linking frame with unmanned aerial vehicle bottom swing joint, its characterized in that: the connecting frame comprises two left side rods (21) which extend downwards and are parallel front and back, each left side rod (21) is connected with one cam (18) through an upper side rod and a lower side rod (9) which are parallel up and down, the two cams (18) are fixedly connected together through a first connecting rod (17), a circle of sliding groove is formed in the circumferential edge of each cam (18), the left ends and the right ends of the upper side rod (8) and the lower side rod (9) are respectively in rotating connection with the corresponding left side rod (21) and the corresponding cam (18), and the upper side rod (8) and the lower side rod (9) and the corresponding left side rod (21) and the corresponding cam (18) form a group of parallelogram mechanisms; a first pressing block (12) is further arranged between the upper side rod (8) and the lower side rod (9) in each group of parallelogram mechanisms, and the upper end and the lower end of the first pressing block (12) are respectively in rotating connection with the upper side rod (8) and the lower side rod (9);
every cam (18) bottom is equipped with guide arm (28) that the below slope of left side extends, and parallel arrangement around guide arm (28) of two cam (18) bottoms is, and every guide arm (28) is for establishing the cavity pole of passageway in, every the bottom of guide arm (28) is equipped with one section downwardly extending's installation pole, and the left and right sides of every installation pole is provided with spring leaf pawl (23) respectively, and left and right two spring leaf pawls (23) are along the left and right both sides slope downwardly extending of installation pole respectively, and every spring leaf pawl (23) comprises last lamellar body (29), lower lamellar body (30) and a plurality of connection pieces (31) of connecting between upper lamellar body (29) and lower lamellar body (30), the outer end of last lamellar body (29) of spring leaf pawl (23), lower lamellar body (30) link together, the inner of the last lamellar body (29) of spring leaf pawl (23) is connected with the installation pole that corresponds, the inner end of a lower piece body (30) of the spring piece claw (23) is arranged on a second pressing block (24), the second pressing block (24) is positioned below the mounting rod, the top of the second pressing block (24) is connected with a pull rope (14), and the pull rope (14) upwards passes through a channel in the guide rod (28), then bypasses a sliding groove on the corresponding cam (18) and is fixed on the first pressing block (12);
under the natural state, the spring leaf claws (23) are flat and straight; when the cam (18) in the parallelogram mechanism is rotated by external force, the convex part on the cam (18) can drive the pull rope (14) to rise, so that the lower sheet body (30) of the spring leaf claw (23) is driven to contract inwards to deform, and the whole spring leaf claw (23) contracts inwards to automatically grab the grabbed object (27); when the cam (18) in the parallelogram mechanism returns, the spring leaf claws (23) automatically rebound.
2. The bird-like multi-rotor unmanned aerial vehicle landing gear of claim 1, wherein: two left side rods (21) of the connecting frame are fixedly connected together through a second connecting rod (6), and two guide rods (28) are fixedly connected together through a third connecting rod (20).
3. The bird-like multi-rotor unmanned aerial vehicle landing gear of claim 1, wherein: the bottom of the lower piece body (30) of the spring piece claw (23) is provided with a rubber pad (26).
4. The bird-like multi-rotor unmanned aerial vehicle landing gear of claim 1, wherein: be equipped with left spacer pin (7) on left side pole (21), left side spacer pin (7) are located between upper limit pole (8) and lower extreme pole (9) and are close to upper limit pole (8), left side spacer pin (7) are used for limiting upper limit pole (8) and carry out clockwise pivoted turned angle for the axis around its articulated shaft with left side pole (21).
5. The bird-like multi-rotor unmanned aerial vehicle landing gear of claim 1, wherein: be equipped with right spacer pin (19) on cam (18), right spacer pin (19) are located between upper limit pole (8) and lower extreme pole (9) and are close to upper limit pole (8), right spacer pin (19) are used for restricting cam (18) and carry out clockwise pivoted turned angle for the axis around its articulated shaft with left side pole (21).
6. The bird-like multi-rotor unmanned aerial vehicle landing gear of claim 1, wherein: the left ends of the upper side rod (8) and the lower side rod (9) are respectively rotatably connected with a left side rod (21) through a left pin shaft (5); the right ends of the upper side rod (8) and the lower side rod (9) are respectively connected with a cam (18) in a rotating way through a right pin shaft (16).
7. The bird-like multi-rotor unmanned aerial vehicle landing gear of claim 1, wherein: the upper end and the lower end of the first pressing block (12) are matched with a nut (10) through a bolt (11) respectively, and the first pressing block (12) is rotatably connected with the upper side rod (8) and the lower side rod (9).
8. The bird-like multi-rotor unmanned aerial vehicle landing gear of claim 1, wherein: the upper end of the pull rope (14) is fixed on the first pressing block (12) through a first pressing screw (13), an upper sheet body (29) of the spring piece claw (23) is fixed on the mounting rod through a second pressing screw (22), and a lower sheet body (30) of the spring piece claw (23) is fixed on the second pressing block (24) through a third pressing screw (25).
9. The bird-like multi-rotor unmanned aerial vehicle landing gear of claim 1, wherein: connecting frame still includes two installation sloping pole (3), fourth connecting rod (2), and two installation sloping pole (3) bottoms are to the left bank and respectively with two left pole (21) top fixed connection as an organic whole, and two installation sloping pole (3) tops are passed through fourth connecting rod (2) are connected as an organic wholely, be equipped with unmanned aerial vehicle connecting piece (1) that are connected with unmanned aerial vehicle on fourth connecting rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920716789.9U CN209870726U (en) | 2019-05-17 | 2019-05-17 | Many rotor unmanned aerial vehicle undercarriage of imitative bird |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920716789.9U CN209870726U (en) | 2019-05-17 | 2019-05-17 | Many rotor unmanned aerial vehicle undercarriage of imitative bird |
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| Publication Number | Publication Date |
|---|---|
| CN209870726U true CN209870726U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920716789.9U Withdrawn - After Issue CN209870726U (en) | 2019-05-17 | 2019-05-17 | Many rotor unmanned aerial vehicle undercarriage of imitative bird |
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| Country | Link |
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| CN (1) | CN209870726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001936A (en) * | 2019-05-17 | 2019-07-12 | 中国科学院合肥物质科学研究院 | A kind of imitative bird multi-rotor unmanned aerial vehicle undercarriage |
-
2019
- 2019-05-17 CN CN201920716789.9U patent/CN209870726U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001936A (en) * | 2019-05-17 | 2019-07-12 | 中国科学院合肥物质科学研究院 | A kind of imitative bird multi-rotor unmanned aerial vehicle undercarriage |
| CN110001936B (en) * | 2019-05-17 | 2023-11-21 | 中国科学院合肥物质科学研究院 | Bird-like multi-rotor unmanned aerial vehicle landing gear |
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