Geographic surveying and mapping unmanned aerial vehicle

Abstract

A geographic surveying and mapping unmanned aerial vehicle comprises an unmanned aerial vehicle body, a surveying and mapping camera, an upper folding supporting leg, a lower folding supporting leg, a first linkage rod, a first track limiting rod, a second track limiting rod, a driving rod butt joint ring, a folding driving rod, a folding driving motor, a driving gear, a driven gear ring, a folding auxiliary sliding rod and a second linkage rod. A camera rotating bearing frame is arranged at the bottom of the unmanned aerial vehicle body and located in the middle, a camera mounting table is arranged at the bottom of the camera rotating bearing frame, a surveying and mapping camera is connected into the camera mounting table, and a shielding block is arranged at the bottom of the unmanned aerial vehicle body and surrounds the outer side of the camera rotating bearing frame. A gear ring mounting table is arranged at the bottom of the unmanned aerial vehicle body and surrounds the outer side of the shielding block, and the driven gear ring is rotationally connected with the gear ring mounting table.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of geography surveying and mapping, especially relates to a geography surveying and mapping unmanned plane. BACKGROUND

[0002] The prior art (publication number: CN117775344A) proposes a geography surveying and mapping unmanned plane, which comprises: an unmanned plane body, two support frames are arranged at the bottom of the unmanned plane body, a buffer assembly is arranged at the top of each support frame, the buffer assembly comprises: a hollow pipe, the hollow pipe is arranged at the top of the support frame in a penetrating mode, a second piston is arranged on the inner wall of the first sleeve in a sliding mode, during the landing process of the unmanned plane body, the second piston and the first sleeve slide relative to each other, and the spring is matched, so that partial buffering is provided for the unmanned plane body, however, the two support frames are arranged on the side of the camera, and the surveying and mapping camera may be blocked by the support frames when the surveying and mapping camera automatically rotates to each direction for geography surveying and mapping, and the unmanned plane body may need to be turned for surveying and mapping, thereby affecting the convenience of the surveying and mapping process. SUMMARY

[0003] The utility model discloses to the above -mentioned shortage of prior art, provide a kind of geography surveying and mapping needs, unmanned plane body is launched by ground, folding drive motor is driven by driving gear driving driven gear ring forward rotation, so that drive rod connecting table is away from folding leg mounting table, so that drive rod connecting table is drawn folding driven ring by the cooperation of folding drive rod and drive rod butt joint ring, so that upper folding support leg is lifted, upper folding support leg is lifted by No. 1 track limiting rod, No. 2 track limiting rod drive No. 1 linkage rod, No. 2 linkage rod connecting body lift, simultaneously No. 1 linkage rod and No. 2 linkage rod are away from each other in the process of being lifted, so that folding auxiliary slide bar inclination increases, lower folding support leg is also synchronously lifted, when surveying and mapping camera automatically rotates to each direction for geography surveying and mapping, upper folding support leg and lower folding support leg are no longer blocked, so that unmanned plane body does not need to be turned, and the utility model discloses a kind of geography surveying and mapping unmanned plane, which is more convenient and flexible in surveying and mapping process.

[0004] The utility model discloses to the above -mentioned shortage of prior art, provide a kind of geography surveying and mapping needs, unmanned plane body is launched by ground, folding drive motor is driven by driving gear driving driven gear ring forward rotation, so that drive rod connecting table is away from folding leg mounting table, so that drive rod connecting table is drawn folding driven ring by the cooperation of folding drive rod and drive rod butt joint ring, so that upper folding support leg is lifted, upper folding support leg is lifted by No. 1 track limiting rod, No. 2 track limiting rod drive No. 1 linkage rod, No. 2 linkage rod connecting body lift, simultaneously No. 1 linkage rod and No. 2 linkage rod are away from each other in the process of being lifted, so that folding auxiliary slide bar inclination increases, lower folding support leg is also synchronously lifted, when surveying and mapping camera automatically rotates to each direction for geography surveying and mapping, upper folding support leg and lower folding support leg are no longer blocked, so that unmanned plane body does not need to be turned, and the utility model discloses a kind of geography surveying and mapping unmanned plane, which is more convenient and flexible in surveying and mapping process.

[0005] The utility model provides a kind of geographic mapping unmanned plane, including unmanned plane body, mapping camera, upper folding support leg, lower folding support leg, first linkage rod, first track limiting rod, second track limiting rod, drive rod butt joint ring, folding drive rod, folding drive motor, driving gear, driven gear ring, folding auxiliary slide bar, second linkage rod, the bottom of unmanned plane body has camera rotating bearing frame, camera rotating bearing frame is in central position, camera rotating bearing frame bottom has camera installation platform, camera installation platform is connected mapping camera inside, the bottom of unmanned plane body has shielding block, shielding block surrounds camera rotating bearing frame outside, the bottom of unmanned plane body has gear ring installation platform, gear ring installation platform surrounds shielding block outside, driven gear ring is rotatably connected with gear ring installation platform, the bottom of unmanned plane body has motor bearing platform, motor bearing platform is located gear ring installation platform side face, motor bearing platform bottom has motor installation slot, folding drive motor is inserted into motor installation slot inside fixed, folding drive motor has driving shaft fixed connection driving gear, driving gear is engaged with driven gear ring, shielding block is masked in driving gear, driven gear ring side face has drive rod connection table, four groups of drive rod connection table surrounds driven gear ring and is evenly arranged, drive rod connection table side face is provided with folding drive rod, folding drive rod side has drive rod connecting block, drive rod connecting block is rotatably connected with drive rod connection table, the bottom of unmanned plane body has folding leg installation platform, four groups of folding leg installation platform surrounds gear ring installation platform array group and is evenly arranged.

[0006] The bottom of the unmanned plane body has a linkage rod installation platform, four groups of linkage rod installation platforms are evenly arranged around the folding leg installation platform array group, the linkage rod installation platform is located on the side of the folding leg installation platform away from the shielding block, the distance between the central axis of the linkage rod installation platform and the unmanned plane body is less than the distance between the central axis of the folding leg installation platform and the unmanned plane body, the bottom of the folding leg installation platform is provided with an upper folding support leg, the top of the upper folding support leg is provided with an upper folding leg mounting block, the upper folding leg mounting block is rotatably connected with the folding leg installation platform, the side of the upper folding leg mounting block is provided with a folding driven column, the top of the folding driven column is provided with a folding driven ring, the drive rod butt joint ring is rotatably connected with the folding driven ring, the other side of the folding drive rod is provided with a drive rod butt joint slide bar, the drive rod butt joint slide bar is adapted to the drive rod butt joint ring, the drive rod butt joint slide bar connects the drive rod butt joint ring, and the drive rod butt joint slide bar slides inside the drive rod butt joint ring.

[0007] Beneficial effects: 1. The utility model needs to carry out the geographical surveying and mapping, the unmanned aerial vehicle main part is launched by the ground, the folding drive motor drives the driven gear ring forward rotation through the driving gear, the drive rod connecting table is away from the folding leg mounting table, so that the drive rod connecting table is driven through the cooperation of the folding drive rod and the drive rod butt joint ring to pull the folding driven ring close to the driven gear ring, so that the upper folding support leg is lifted, the upper folding support leg is lifted through the cooperation of the first track limiting rod, the second track limiting rod, the first linkage rod, the second linkage rod connecting body, and the first linkage rod and the second linkage rod are lifted at the same time, and the first linkage rod and the second linkage rod are away from each other in the process of being lifted, so that the folding auxiliary slide bar angle increases, the lower folding support leg is also lifted synchronously, when the surveying and mapping camera rotates to each direction for geographical surveying and mapping, the upper folding support leg and the lower folding support leg are not shielded, so that the unmanned aerial vehicle main body does not need to turn, and the surveying and mapping process is more convenient and flexible.

[0008] 2. The utility model discloses a first linkage rod, second linkage rod adopts the design of split type, and the perpendicular distance of the central axis in the first connecting groove and the central axis of the linkage rod butt joint rod is greater than the straight line distance of the central axis in the second connecting groove and the central axis of the linkage rod butt joint groove, so that when the first linkage rod, second linkage rod connecting body is lifted, the first linkage rod, second linkage rod are away from each other, and the included angle between the first linkage rod, second linkage rod connecting body and the upper folding support leg also increases, compared with the traditional quadrilateral connecting rod, the movement range of the lower folding support leg driven by the upper folding support leg is larger, and the folding effect is better.

[0009] 3. The utility model discloses a second track limiting rod adopts the design of bending, so that when the second track limiting rod runs to the limit position, the second track limiting rod will not collide with the connecting point of the upper folding support leg and the lower folding support leg, further increase the movable range of the lower folding support leg, so that the folding effect of the upper folding support leg, the lower folding support leg connecting body is further increased.

[0010] 4. The utility model discloses the shielding block shade in the driving gear, driven gear ring outside, so as to avoid the sundries into the driving gear, driven gear ring connecting place in the process of flight to influence the subsequent rotation of the driven gear ring, reduce the maintenance, maintenance frequency of this device. ACCURACY

[0011] Figure 1 For the geographical surveying and mapping unmanned aerial vehicle structure schematic drawing of the utility model.

[0012] Figure 2 For the geographical surveying and mapping unmanned aerial vehicle local enlarged view of the utility model.

[0013] Figure 3 For the geographical surveying and mapping unmanned aerial vehicle local side view of the utility model.

[0014] Figure 4A local side view sectional view of the geographic surveying and mapping unmanned plane.

[0015] Figure 5 A lower folding supporting leg stretched state view.

[0016] Figure 6 A schematic view of the unmanned plane main body structure.

[0017] Figure 7 A schematic view of the upper folding supporting leg structure.

[0018] Figure 8 A schematic view of the lower folding supporting leg structure.

[0019] Figure 9 A schematic view of the folding driving rod structure. DETAILED DESCRIPTION

[0020] The utility model will be further explained in detail below according to the drawings and examples:

[0021] Example 1:

[0022] A kind of geographic mapping unmanned plane, including unmanned plane main body 1, mapping camera 4, upper folding support leg 5, lower folding support leg 6, first linkage rod 9, first track limiting rod 10, second track limiting rod 15, drive rod butt joint ring 16, folding drive rod 17, folding drive motor 20, driving gear 21, driven gear ring 23, folding auxiliary slide rod 26, second linkage rod 27, the bottom of the unmanned plane main body 1 has camera rotating bearing frame 2, the camera rotating bearing frame 2 is in central position, camera rotating bearing frame 2 bottom has camera mounting table 3, camera mounting table 3 is connected inside mapping camera 4, the bottom of unmanned plane main body 1 has shielding block 25, shielding block 25 surrounds the outside of camera rotating bearing frame 2, the bottom of unmanned plane main body 1 has gear ring mounting table 22, gear ring mounting table 22 surrounds the outside of shielding block 25, driven gear ring 23 is rotationally connected with gear ring mounting table 22, the bottom of unmanned plane main body 1 has motor bearing table 18, motor bearing table 18 is located in the side of gear ring mounting table 22, motor bearing table 18 bottom has motor mounting groove 19, folding drive motor 20 is inserted into the inside fixed of motor mounting groove 19, folding drive motor 20 has transmission shaft fixedly connected driving gear 21, driving gear 21 is engaged with driven gear ring 23, shielding block 25 is shielded in the outside of driving gear 21, driven gear ring 23, shielding block 25 is shielded in the outside of driving gear 21, driven gear ring 23, so as to avoid the influence of subsequent rotation of driven gear ring 23 in the process of flying that sundries enters the connection of driving gear 21, driven gear ring 23, reduce the maintenance, maintenance frequency of this device, driven gear ring 23 side has drive rod connecting table 24, four groups of drive rod connecting table 24 are evenly arranged around driven gear ring 23, folding drive rod 17 is provided on the side of drive rod connecting table 24, folding drive rod 17 side has drive rod connecting block 30, drive rod connecting block 30 is rotationally connected with drive rod connecting table 24, the bottom of unmanned plane main body 1 has folding leg mounting table 7, four groups of folding leg mounting table 7 are evenly arranged in array group around gear ring mounting table 22.

[0023] Example 2

[0024] The utility model discloses unmanned aerial vehicle main part 1 bottom has linkage rod installation platform 8, needs to carry out the geographical mapping, and unmanned aerial vehicle main part 1 takes off after the ground, and folding drive motor 20 drives driven gear ring 23 forward rotation through driving gear 21, and drive rod connecting platform 24 is away from folding leg installation platform 7 to drive rod connecting platform 24 through the cooperation of folding drive rod 17 and drive rod butt joint ring 16 traction folding driven ring 14 close driven gear ring 23 to make the upper folding support leg 5 be lifted, and the upper folding support leg 5 is lifted and is driven through No. 1 track limiting rod 10, No. 2 track limiting rod 15 drive No. 1 linkage rod 9, No. 2 linkage rod 27 connecting body lift, simultaneously No. 1 linkage rod 9 and No. 2 linkage rod 27 are away from each other in the process of being lifted to make folding auxiliary slide bar 26 inclination increase, and the lower folding support leg 6 is also lifted synchronously, when mapping camera 4 automatic rotation to each direction carries out the geographical mapping and will not be shielded by the upper folding support leg 5 again, the lower folding support leg 6 to make unmanned aerial vehicle main part 1 itself steering unnecessary, and the mapping process is more convenient, flexible, and four linkage rod installation platforms 8 surround folding leg installation platform 7 array group even arrangement, and linkage rod installation platform 8 is located in the side away from the blocking block 25 of folding leg installation platform 7, and the distance between the central axis of linkage rod installation platform 8 and unmanned aerial vehicle main part 1 is less than the distance between the central axis of folding leg installation platform 7 and unmanned aerial vehicle main part 1, and folding leg installation platform 7 bottom is provided with the upper folding support leg 5, and the upper folding support leg 5 top has upper folding leg mounting block 12, and upper folding leg mounting block 12 is rotationally connected with folding leg installation platform 7, and folding leg mounting block 12 side has folding driven column 13, and folding driven column 13 top has folding driven ring 14, and drive rod butt joint ring 16 is rotationally connected with folding driven ring 14, and folding drive rod 17 other side has drive rod butt joint slide bar 31, and drive rod butt joint slide bar 31 is adapted to drive rod butt joint ring 16, and drive rod butt joint slide bar 31 is connected with drive rod butt joint ring 16, and drive rod butt joint slide bar 31 slides in drive rod butt joint ring 16, and the upper folding support leg 5 bottom has lower folding leg mounting block 39, and the upper folding support leg 5 bottom is provided with the lower folding support leg 6, and the lower folding support leg 6 top is rotationally connected with lower folding leg mounting block 39, and the lower folding support leg 6 inside has auxiliary slide bar connecting groove 35, and folding auxiliary slide bar 26 is adapted to auxiliary slide bar connecting groove 35, and folding auxiliary slide bar 26 is connected with auxiliary slide bar connecting groove 35.

[0025] Example 3

[0026] The folding auxiliary sliding rod 26 slides in the auxiliary sliding rod connecting groove 35, the folding auxiliary sliding rod 26 is provided with an auxiliary rod connecting ring 28 at the top, the folding auxiliary sliding rod 26 is provided with a second linkage rod 27 at the top, the second linkage rod 27 is provided with a second rod mounting block 38 on one side, the second rod mounting block 38 is rotationally connected with the auxiliary rod connecting ring 28, and the second linkage rod 27 is provided with a linkage rod butt joint groove 36 in the inside, the upper folding supporting leg 5 is provided with a first linkage rod 9 at the top, the first linkage rod 9 is provided with a first rod mounting block 37 on one side, the first rod mounting block 37 is rotationally connected with a linkage rod mounting table 8, the first linkage rod 9 is provided with a linkage rod butt joint rod 32 on the other side, and the first linkage rod 9 and the second linkage rod 27 are designed in a split type, and the perpendicular distance between the central axis in the lower first connecting groove 11 and the central axis in the linkage rod butt joint groove 32 is greater than the straight line distance between the central axis in the lower second connecting groove 29 and the central axis in the linkage rod butt joint groove 36, so that when the upper folding supporting leg 5 is lifted by driving the first linkage rod 9 and the second linkage rod 27 connecting body, the first linkage rod 9 and the second linkage rod 27 are away from each other, and the included angle between the first linkage rod 9, the second linkage rod 27 connecting body and the upper folding supporting leg 5 is also increased, compared with the traditional quadrilateral connecting rod, the movement range of the lower folding supporting leg 6 driven by the upper folding supporting leg 5 is larger, the folding effect is better, the linkage rod butt joint rod 32 is matched with the linkage rod butt joint groove 36, the linkage rod butt joint rod 32 is connected with the linkage rod butt joint groove 36, and the linkage rod butt joint rod 32 slides in the linkage rod butt joint groove 36.

[0027] Embodiment 4

[0028] The first linkage rod 9 is provided with an upper first connecting groove 33 in the middle, the second linkage rod 27 is provided with an upper second connecting groove 34 in the upper portion, the upper folding supporting leg 5 is provided with a lower first connecting groove 11 and a lower second connecting groove 29 in the inside, the lower first connecting groove 11 is located on the side of the upper folding supporting leg 5 close to the upper folding leg mounting block 12, the lower second connecting groove 29 is located on the side of the upper folding supporting leg 5 close to the lower folding leg mounting block 39, and the perpendicular distance between the central axis in the lower first connecting groove 11 and the central axis in the linkage rod butt joint groove 32 is greater than the straight line distance between the central axis in the lower second connecting groove 29 and the central axis in the linkage rod butt joint groove 36.

[0029] Embodiment 5

[0030] The utility model discloses a first track limiting rod 10 bottom and lower one connection groove 11 rotatory connection, first track limiting rod 10 top and upper one connection groove 33 rotatory connection, second track limiting rod 15 bottom and lower second connection groove 29 rotatory connection, second track limiting rod 15 top and upper second connection groove 34 rotatory connection, second track limiting rod 15 adopts the design of bending, thereby make second track limiting rod 15 run to extreme position, second track limiting rod 15 will not collide with the connecting point of upper folding support leg 5, lower folding support leg 6, further increase the movable range of lower folding support leg 6, thereby further increase the folding effect of upper folding support leg 5, lower folding support leg 6 connecting body.

[0031] Example 6

[0032] The utility model discloses installation steps: the driven gear ring 23 with the gear ring installation platform 22 of unmanned aerial vehicle main body 1 rotatory connection, folding drive motor 20 is inserted to the motor installation slot 19 inside fixed with unmanned aerial vehicle main body 1, the transmission shaft with driving gear 21 fixed connection of folding drive motor 20 makes driving gear 21 with driven gear ring 23 meshing, folding drive rod 17 has drive rod connecting block 30 with the drive rod connecting platform 24 of driven gear ring 23 rotatory connection, upper folding leg mounting block 12 with folding leg mounting platform 7 of unmanned aerial vehicle main body 1 rotatory connection of upper folding support leg 5 has, folding driven ring 14 rotatory connection of drive rod butt joint ring 16 with upper folding leg mounting block 12 has, the drive rod butt joint slide rod 31 of folding drive rod 17 is inserted to inside folding drive rod 17 has, lower folding leg mounting block 39 rotatory connection of upper folding support leg 5 with lower folding support leg 6 top, folding auxiliary slide rod 26 is inserted to inside auxiliary slide rod connecting slot 35 of lower folding support leg 6 has, the auxiliary rod connecting ring 28 with second rod mounting block 38 of second linkage rod 27 has of folding auxiliary slide rod 26 top has rotatory connection, one side of one rod mounting block 37 with linkage rod mounting platform 8 of unmanned aerial vehicle main body 1 rotatory connection of first linkage rod 9 has, the linkage rod butt joint rod 32 of first linkage rod 9 is inserted to inside butt joint rod connecting slot 36 of second linkage rod 27 has, lower one connection groove 11 with upper folding support leg 5 of first track limiting rod 10 bottom rotatory connection, first track limiting rod 10 top and upper one connection groove 33 rotatory connection of first linkage rod 9 has, lower second connection groove 29 with upper folding support leg 5 of second track limiting rod 15 bottom rotatory connection, the upper second connection groove 34 with second linkage rod 27 of second track limiting rod 15 top rotatory connection has.

[0033] The above merely is preferred implementation manner of the present application, and is not used for limiting the present application, it should be pointed out, for ordinary skilled person in the technical field, on the premise of not departing from the technical principle of the present application, can also make several improvements and variations, these improvements and variations also should be regarded as the protection scope of the present application.

Claims

1. A geographic mapping drone, characterized by Including unmanned aerial vehicle main body (1), surveying camera (4), upper folding support leg (5), lower folding support leg (6), first linkage rod (9), first track limiting rod (10), second track limiting rod (15), drive rod butt joint ring (16), folding drive rod (17), folding drive motor (20), driving gear (21), driven gear ring (23), folding auxiliary sliding rod (26), second linkage rod (27), the unmanned aerial vehicle main body (1) bottom has camera rotating bearing frame (2), the camera rotating bearing frame (2) is in the central position, camera rotating bearing frame (2) bottom has camera installation platform (3), camera installation platform (3) is connected inside surveying camera (4), unmanned aerial vehicle main body (1) bottom has shielding block (25), shielding block (25) surrounds the outside of camera rotating bearing frame (2), unmanned aerial vehicle main body (1) bottom has gear ring installation platform (22), gear ring installation platform (22) surrounds the outside of shielding block (25), driven gear ring (23) is rotatably connected with gear ring installation platform (22), unmanned aerial vehicle main body (1) bottom has motor bearing platform (18), motor bearing platform (18) is located on the side of gear ring installation platform (22), motor bearing platform (18) bottom has motor installation slot (19), folding drive motor (20) is inserted into the inside fixed motor installation slot (19), folding drive motor (20) has transmission shaft fixedly connected driving gear (21), driving gear (21) is engaged with driven gear ring (23), shielding block (25) is shielded outside driving gear (21), driven gear ring (23) side has drive rod connecting platform (24), four groups of drive rod connecting platform (24) surround driven gear ring (23) and are evenly arranged, drive rod connecting platform (24) side is provided with folding drive rod (17), folding drive rod (17) one side has drive rod connecting block (30), drive rod connecting block (30) is rotatably connected with drive rod connecting platform (24), unmanned aerial vehicle main body (1) bottom has folding leg installation platform (7), four groups of folding leg installation platform (7) surround gear ring installation platform (22) and are evenly arranged in array group.

2. The geographic mapping drone of claim 1, wherein : The unmanned aerial vehicle body (1) bottom has linkage rod installation platform (8), four groups of linkage rod installation platform (8) array group evenly arranged around folding leg installation platform (7), linkage rod installation platform (8) is located on the side of folding leg installation platform (7) away from the blocking block (25), the distance between the central axis of linkage rod installation platform (8) and the unmanned aerial vehicle body (1) is less than the distance between the central axis of folding leg installation platform (7) and the unmanned aerial vehicle body (1), the bottom of folding leg installation platform (7) is provided with upper folding support leg (5), the top of upper folding support leg (5) has upper folding leg mounting block (12), upper folding leg mounting block (12) is rotatably connected with folding leg installation platform (7), upper folding leg mounting block (12) side has folding driven column (13), folding driven column (13) top has folding driven ring (14), drive rod butt joint ring (16) is rotatably connected with folding driven ring (14), folding drive rod (17) the other side has drive rod butt joint slide rod (31), drive rod butt joint slide rod (31) is adapted to drive rod butt joint ring (16), drive rod butt joint slide rod (31) is connected with drive rod butt joint ring (16), drive rod butt joint slide rod (31) slides in drive rod butt joint ring (16), the bottom of upper folding support leg (5) has lower folding leg mounting block (39), the bottom of upper folding support leg (5) is provided with lower folding support leg (6), the top of lower folding support leg (6) is rotatably connected with lower folding leg mounting block (39), lower folding support leg (6) has auxiliary slide rod connecting groove (35) inside, folding auxiliary slide rod (26) is adapted to auxiliary slide rod connecting groove (35), folding auxiliary slide rod (26) is connected with auxiliary slide rod connecting groove (35).

3. The geographic mapping drone of claim 2, wherein : The folding auxiliary slide rod (26) slides in the auxiliary slide rod connecting groove (35), the top of folding auxiliary slide rod (26) has auxiliary rod connecting ring (28), the top of folding auxiliary slide rod (26) is provided with No. two linkage rod (27), No. two linkage rod (27) side has No. two rod mounting block (38), No. two rod mounting block (38) is rotatably connected with auxiliary rod connecting ring (28), No. two linkage rod (27) has linkage rod butt joint groove (36) inside, the top of upper folding support leg (5) is provided with No. one linkage rod (9), No. one linkage rod (9) side has No. one rod mounting block (37), No. one rod mounting block (37) is rotatably connected with linkage rod installation platform (8), No. one linkage rod (9) the other side has linkage rod butt joint rod (32), linkage rod butt joint rod (32) is adapted to linkage rod butt joint groove (36), linkage rod butt joint rod (32) is connected with linkage rod butt joint groove (36), linkage rod butt joint rod (32) slides in linkage rod butt joint groove (36) inside.

4. The geographic mapping drone of claim 1, wherein The upper first connecting groove (33) is arranged in the middle of the first linkage rod (9), the upper second connecting groove (34) is arranged in the upper part of the second linkage rod (27), the lower first connecting groove (11) and the lower second connecting groove (29) are arranged in the inside of the upper folding supporting leg (5), the lower first connecting groove (11) is arranged on the side of the upper folding supporting leg (5) close to the upper folding leg mounting block (12), the lower second connecting groove (29) is arranged on the side of the upper folding supporting leg (5) close to the lower folding leg mounting block (39), and the vertical distance between the central axis of the lower first connecting groove (11) and the central axis of the linkage rod butt joint rod (32) is greater than the straight line distance between the central axis of the lower second connecting groove (29) and the central axis of the linkage rod butt joint groove (36).

5. The geographic mapping drone of claim 1, wherein The bottom of the first trajectory limiting rod (10) is rotationally connected with the lower first connecting groove (11), the top of the first trajectory limiting rod (10) is rotationally connected with the upper first connecting groove (33), the bottom of the second trajectory limiting rod (15) is rotationally connected with the lower second connecting groove (29), and the top of the second trajectory limiting rod (15) is rotationally connected with the upper second connecting groove (34).

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