Driving supporting rod, landing gear and unmanned aerial vehicle

Abstract

The driving supporting rod comprises a driving assembly, a nut wheel, a supporting rod and a support, the support is provided with an upper section and a lower section, the support is provided with a limiting hole vertically penetrating through the upper section and the lower section, the limiting hole is axially connected with the supporting rod in a sliding mode, a rotating groove is formed between the upper section and the lower section, and the nut wheel is arranged in the rotating groove. And the nut wheel is rotatably connected to the supporting rod, is in transmission connection with the driving assembly, and can rotate under the action of the driving assembly to push the supporting rod to move up and down in the axial direction. The upper section and the lower section of the support form a limiting structure limited at the two ends of the nut wheel, the supporting rod is axially connected to limiting holes of the upper section and the lower section in a sliding mode, the nut wheel is rotatably connected to the supporting rod, and the nut wheel can rotate under the action of the driving assembly so as to push the supporting rod to move downwards from the lower section protrusion or move upwards from the upper section protrusion in the axial direction. And extension or contraction is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field, especially a kind of unmanned plane of configuration can drive support rod. BACKGROUND

[0002] With the development of unmanned plane technology, its application range is more and more extensive;For example, ordinary people commonly used photography, configure camera on rotor unmanned plane, through mobile phone remote control unmanned plane cruising, while shooting;For example, building detection and maintenance, etc., need to configure probe arm on rotor unmanned plane, even configure sucking disc structure at the front end of probe arm, to extend and suck and fix on building surface and carry out detection operation;For example, field environment monitoring, etc., arrange monitoring equipment such as camera on unmanned plane, then fly to preset position and land, then continuously monitor operation, return after completing task.

[0003] Market general unmanned plane includes body, frame, foot stand, support arm and rotor, etc., is equipped with control system and power supply, can be remote controlled by remote control or mobile phone, then unmanned plane takes off, then cruises to preset position and carries out hovering operation or ground operation, lands at ground operation, operation completion or power supply replacement time point.

[0004] For example, Chinese utility model patent "unmanned plane and its variable direction probe arm mechanism, publication number CN218559213U", which includes unmanned plane body and probe arm arranged on unmanned plane body. For example, Chinese patent document "unmanned plane landing gear, publication number CN208119416U", which includes unmanned plane body and support arm, the body of the unmanned plane body is arranged with support arm, each support arm is fixedly provided with a screw hole below, and a telescopic rod is screwed in the screw hole. Again, Chinese patent document "compression rod type landing unmanned plane take-off mechanism and unmanned plane, publication number CN219884123U", wherein, foot stand assembly includes lower compression rod and locking clamp, lower compression rod is arranged below unmanned plane body and can slide up and down, locking clamp is arranged around lower compression rod, and locking clamp can lock and fix lower compression rod or release lower compression rod.

[0005] As described above, telescopic landing foot stand or probe arm of unmanned plane generally uses telescopic rod, and electric telescopic rod generally has only about 50% telescopic distance usage range, and telescopic distance utilization rate is low, and the remaining part cannot be telescopic and occupies load. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of unmanned planes, support rod can be maximized to extend or shrink, effectively improve telescopic distance.

[0007] To achieve the above object, the technical scheme adopted by the utility model is:

[0008] The unmanned aerial vehicle comprises an unmanned aerial vehicle body and a telescopic rod assembly, and the telescopic rod assembly is assembled to the unmanned aerial vehicle body; the telescopic rod assembly adopts a driving support rod as follows.

[0009] The driving support rod comprises a driving assembly, which provides power; further comprises a nut wheel, a support rod and a support base, the support base is provided with an upper section and a lower section, the support base is provided with a limiting hole penetrating through the upper section and the lower section in an axial direction, the support rod is axially and slidably connected to the limiting hole, a rotating groove is arranged between the upper section and the lower section, the nut wheel is arranged in the rotating groove, the nut wheel is rotatably connected to the support rod, the nut wheel is in transmission connection with the driving assembly, and the nut wheel can rotate to push the support rod to move up and down along the axial direction under the action of the driving assembly.

[0010] The support base is fixedly installed on the external device, and the driving assembly is fixedly installed on the external device or the support base; the external device refers to the device to be assembled, and in the foregoing application scheme, the external device refers to the unmanned aerial vehicle body.

[0011] The driving assembly is a motor, a transmission shaft of the motor is in transmission connection with an outer periphery of the nut wheel through a transmission gear, at this time, the nut wheel is a nut gear, and the transmission is realized through the gear transmission; or, the transmission shaft of the motor is in transmission connection with the outer periphery of the nut wheel through a transmission belt pulley and a belt, at this time, the nut wheel is a nut belt pulley, and the transmission is realized through the belt transmission. The following description of the application will take the gear transmission scheme as an example.

[0012] The upper section and the lower section are both in a plate structure, so as to reduce the axial thickness as much as possible and make the structure compact.

[0013] The center of the nut wheel of the driving support rod is provided with an inner hole, the wall surface of the inner hole is provided with an outer convex spiral tooth, the outer wall of the support rod is provided with an inner recessed spiral tooth matched with the outer convex spiral tooth, and the inner hole of the nut wheel is in spiral connection with the outer wall of the support rod. In this way, mechanical action can be transmitted, and a limiting function is also provided.

[0014] As described above, the upper section and the lower section of the support base form a limiting structure limited at both ends of the nut wheel, the support rod is axially and slidably connected to the limiting hole of the upper section and the lower section, the nut wheel is rotatably connected to the support rod, the nut wheel can rotate under the action of the driving assembly, and then push the support rod to move downward along the axial direction from the lower section or move upward along the axial direction from the upper section, so as to realize elongation or contraction. The upper section and the lower section and the nut wheel only need to have a certain thickness in the axial direction, the support rod can be elongated or contracted to the maximum extent, and the telescopic distance is effectively improved.

[0015] Based on the foregoing scheme, in an improved scheme, in order to solve the problem that the nut wheel is rotatably connected to the support rod, causing the rotation driving to bring the rotating effect to the support rod, the driving support rod has a limiting structure, the width of the inner wall of the limiting hole of the support is matched with the outer wall of the support rod, and the outer wall of the support rod is circular in the circumferential direction and has at least one notch. For example, one side is circular arc and the other side is linear structure, for example, a racetrack ring shape structure with two parallel sides and two arc-shaped ends, for example, a square with four rounded corners, etc. Thus, the limiting structure is formed in the circumferential direction, and the support rod is limited to prevent rotation. For example, a regular hexagon with six rounded corners, and a circular arc spiral surface is formed on the outer wall of the telescopic rod in the circumferential direction, so as to be spirally connected to the inner hole of the nut wheel.

[0016] Based on the foregoing scheme, in an improved scheme, in order to improve the smoothness and stability of the axial sliding connection of the support rod, the driving support rod further comprises a linear bearing, and the outer wall of the support rod is connected to the limiting holes of the upper segment and the lower segment through the linear bearing.

[0017] Based on the foregoing scheme, in an improved scheme, in order to solve the problem of storage end protection in specific scenarios, the driving support rod further comprises a protective sleeve, the protective sleeve has a protective hole axially penetrating through the protective sleeve, the protective sleeve is installed on the upper segment or the lower segment, the width of the protective hole is matched with the outer wall of the support rod, and the support rod is arranged in the protective hole. Thus, the storage protection effect, the limiting effect and the guiding effect can be achieved.

[0018] Due to the adoption of the above technical scheme, the utility model has the following beneficial effects:

[0019] The unmanned aerial vehicle of the utility model, the upper segment and the lower segment of the support form a limiting structure limited at both ends of the nut wheel, the support rod is axially slidably connected to the limiting holes of the upper segment and the lower segment, the nut wheel is rotatably connected to the support rod, the nut wheel can rotate under the action of the driving assembly, and then the support rod is pushed to move downward along the axis from the lower segment or to move upward from the upper segment, so as to realize elongation or contraction. The upper segment and the lower segment and the nut wheel have a certain thickness in the axial direction, which is the fixed length of the utility model, and the part of the support rod greater than the fixed length is adjustable, so that the support rod can be elongated or contracted to the maximum extent, and the telescopic distance is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a front view structural schematic diagram of the unmanned aerial vehicle example 1 of the utility model. Figure 2 is Figure 1 is an enlarged view of the driving support rod of Figure 3 is Figure 1 is a motor connection support structure schematic diagram of the driving support rod of Figure 4 is Figure 1 is a support rod structure schematic diagram of the driving support rod of Figure 5 is Figure 1 is a support structure schematic diagram of the driving support rod of Figure 6 isFigure 5 Another perspective structural diagram. Figure 7 yes Figure 5 Another perspective structural diagram. Figure 8 yes Figure 1 A schematic diagram of the nut wheel structure of the drive support rod.

[0021] Figure 9 This is a schematic diagram of the support structure of the drive support rod of the UAV Example 2 of this utility model. Figure 10 yes Figure 9 A schematic diagram of the motor connection support structure for the drive support rod.

[0022] Figure 11 This is a schematic diagram of the protective sleeve structure of the drive support rod of UAV Example 3 of this utility model.

[0023] Figure 12 This is a schematic diagram of the main structure of UAV Example 4 of this utility model.

[0024] In the attached diagram, 1 is the UAV body, 11 is the frame, 12 is the landing foot, 121 is the vertical leg section, 13 is the support arm, 14 is the rotor, 15 is the fuselage, 2 is the drive support rod, 21 is the strut, 22 is the support, 221 is the limiting hole, 222 is the assembly hole, 223 is the base section, 224 is the base hole, 22' is the support, 223' is the base section, 224' is the base hole, 224" is the shaft hole, 23 is the nut gear, 231 is the outwardly protruding helical tooth, 24 is the motor, and 25 is the transmission gear. Detailed Implementation

[0025] Example 1

[0026] See Figures 1-8 The drone in this embodiment 1 includes a drone body 1 and a telescopic boom assembly. The telescopic boom assembly is mounted on the landing gear mechanism of the drone body 1 as the vertical leg section 121 of its landing feet 12, with four landing feet as an example. The telescopic boom assembly uses a drive support rod 2 as described below.

[0027] The drive support rod 2 includes a drive assembly that provides power; it also includes a nut wheel, a support rod 21, and a support 22. The support 22 is configured with an upper section and a lower section. The support 22 is provided with a limiting hole 221 that extends through the upper and lower sections. The support rod 21 is axially slidably connected to the limiting hole 221. A rotating groove is provided between the upper and lower sections. The nut wheel is arranged in the rotating groove and is rotatably connected to the support rod 21. The nut wheel is connected to the drive assembly for transmission. The nut wheel can rotate under the action of the drive assembly to push the support rod to move up and down axially.

[0028] The unmanned aerial vehicle body 1 includes a body 15, a frame 11, a landing foot (landing gear) 12, a supporting arm 13, a rotor 14, etc. The rotor motor and transmission shaft have a solid structure or a hollow structure. The body is provided with a lithium battery pack and a controller circuit board. The rotor is started and stopped through a standard cable connection. The unmanned aerial vehicle body and its control are prior art and will not be described here. For example, the DJI unmanned aerial vehicle on the market. For another example, Chinese patent document "Compression rod type landing unmanned aerial vehicle landing mechanism and unmanned aerial vehicle, publication number CN219884123U", wherein the foot assembly includes a lower compression rod and a locking clamp. The lower compression rod is arranged below the unmanned aerial vehicle body and can slide up and down. The locking clamp is arranged around the lower compression rod and can lock and fix the lower compression rod or release the lower compression rod. The present application improves the existing telescopic rod assembly structure assembled on the unmanned aerial vehicle body or other similar functional peripheral devices to have a larger telescopic distance.

[0029] The driving assembly is a motor. The motor and its connection control are prior art. For example, a stepper motor is connected to the controller of the unmanned aerial vehicle body. Here, it will not be described. The transmission shaft of the motor is connected to the outer periphery of the nut wheel through a transmission gear. At this time, the nut wheel is a nut gear 23, which is achieved by gear transmission. Alternatively, the transmission shaft of the motor is connected to the outer periphery of the nut wheel through a transmission belt pulley and a belt. At this time, the nut wheel is a nut belt pulley, which is achieved by belt transmission. The belt transmission and the like can be directly applied to the present application by using existing components. The following description will take the gear transmission scheme as an example.

[0030] The support is fixedly installed on the peripheral device and can be welded or bolted. As shown, the mounting hole 222 is provided on the U-shaped support 22 to cooperate with the bolt and nut to be installed on the peripheral device. The motor (driving assembly) is fixedly installed on the peripheral device or the support. The installation on the support can directly realize relative fixation, and the installation of the support and the motor on the peripheral device can also realize relative fixation. As shown, the motor is installed horizontally through the motor seat hole 224 cooperating with the fixing bolt 241. The peripheral device here refers to the device to which the driving support rod is to be assembled. In the foregoing application scheme, the peripheral device refers to the unmanned aerial vehicle body. The upper and lower segments of the support are plate-shaped structures, which minimize the axial thickness and make the structure compact.

[0031] The nut wheel of the driving support rod can be connected with the support rod by a worm turbine or by a screw. The application is described by taking the screw connection as an example. Specifically, the center of the nut wheel is provided with an inner hole, the inner hole wall is provided with an outer convex screw tooth 231, the outer periphery of the nut wheel is provided with a straight tooth 232, the straight tooth 232 is connected with the transmission gear 25 of the motor 24 in meshing connection, the outer wall of the support rod 21 is provided with an inner concave screw tooth matched with the outer convex screw tooth, and the inner hole of the nut wheel is screw-connected to the outer wall of the support rod 21. In this way, mechanical action can be transmitted, and at the same time, limiting action is also achieved.

[0032] During assembly, the support is welded or bolted to the cross leg section of the landing leg (unmanned aerial vehicle body or other external devices), the nut wheel is placed in the rotating groove, then the support rod is inserted from the lower section limiting hole, aligned with the inner hole of the nut wheel, rotated and screwed in, and then the motor is installed and wired to the unmanned aerial vehicle body controller. Of course, plugs can be arranged at both ends, and the width of the plug is greater than the limiting hole, as shown in Figure 1 After assembly is completed, the motor can be controlled to rotate forward or reverse according to the control signal, driving the nut wheel to rotate, and the limited nut wheel pushes the support rod to move axially upward or downward, so as to realize extension or contraction. In this way, the vertical leg section 121 of the landing leg 12 can be extended by a certain length according to needs, meeting the needs of landing on uneven ground. Of course, it can also be applied to the cross leg section to meet different width requirements. A large width can increase the load under the condition of ensuring stability, and a small width can stop on a small width platform under the premise of ensuring stability.

[0033] As described above, the upper section and the lower section of the support form a limiting structure at both ends of the nut wheel, the support rod is axially slidably connected to the limiting holes of the upper section and the lower section, the nut wheel is rotatably connected to the support rod, and the nut wheel can rotate under the action of the driving assembly, thereby pushing the support rod to move downward along the axial direction from the lower section or to move upward from the upper section, realizing extension or contraction. In the axial direction (extension direction), only the upper section and the lower section and the nut wheel have a certain thickness, which is the fixed length that cannot be extended, and the part of the support rod that is greater than the fixed length is adjustable. The support rod can be maximally extended or contracted, effectively improving the extension distance and reducing the load occupied by the part that cannot be extended.

[0034] Based on the foregoing scheme, in an improved scheme, in order to solve the problem that the nut wheel is rotatably connected to the support rod, causing the rotating drive to bring a rotating effect to the support rod, the drive support rod has a limiting structure, the width of the inner wall of the limiting hole of the support is matched with the outer wall of the support rod, and the outer wall of the support rod is circular in the circumferential direction (the hole type in the overhead state of the limiting hole) and has at least one notch. For example, one side is a circular arc and the other side is a straight line structure, for example, a racetrack ring shape structure with two parallel sides and two arc-shaped ends connected, for example, a square with rounded corners at the four corners, etc. For example, a regular hexagon with rounded corners at the six corners, and a circular arc spiral surface is formed on the outer wall of the telescopic rod in the circumferential direction, so as to be spirally connected to the inner hole of the nut wheel. As shown, the racetrack ring shape structure is taken as an example to illustrate that a limiting structure is formed in the circumferential direction, and the limiting support rod is not rotated.

[0035] Embodiment 2

[0036] Different from the foregoing embodiment 1, the support of the present embodiment 2 is divided into upper and lower sections, as follows.

[0037] Referring to Figures 9-10 , the unmanned aerial vehicle of the present embodiment 2 has two L-shaped supports '22' divided by the upper and lower sections, and the assembly holes are arranged to realize bolt connection and fixation to the external device, and the interval therebetween can form a rotating groove. One of the two supports '22' is arranged with a motor seat section, which can be the motor seat section of embodiment 1; the present embodiment 2 takes the motor seat section '223' as an example, and the motor seat hole '224' and the motor shaft hole '224' are arranged on the motor seat section '223' to realize motor shaft type installation by cooperating with the fixing bolt 241.

[0038] Embodiment 3

[0039] The present embodiment 3 has a protection function based on the foregoing embodiment 1 or embodiment 2, and other unexplained matters are described in the foregoing embodiment 1 and embodiment 2.

[0040] Referring to Figure 11 , the unmanned aerial vehicle of the present embodiment 3, the drive support rod further comprises a protective sleeve 26, the protective sleeve 26 has a protective hole axially penetrating through, the protective sleeve 26 is welded or connected to the upper section or the lower section of the support by cooperating with the flange bolt, the width of the protective hole is matched with the outer wall of the support rod, and the support rod is arranged in the protective hole. In this way, the storage end protection problem in a specific scene can be solved, and the storage protection effect, the limiting effect and the guiding effect can be achieved.

[0041] Embodiment 4

[0042] The present embodiment 4 improves the sliding performance of the support rod based on the foregoing embodiment 1 or embodiment 2, embodiment 3, and other unexplained matters are described in the foregoing embodiment 1-3.

[0043] The foregoing embodiments 1-3 use the support rod to directly slide in the limiting hole, and the smoothness is limited, which further causes high energy consumption and noise.

[0044] The unmanned aerial vehicle of this embodiment 4, the driving support rod further comprises a linear bearing, a linear bearing is welded in the limiting hole of the upper segment and the lower segment respectively, the support rod is installed in the linear bearing, and the outer wall of the support rod is connected to the limiting hole of the upper segment and the lower segment through the linear bearing respectively, so that the axial sliding connection smoothness and stability of the support rod can be improved.

[0045] Embodiment 5

[0046] Different from the foregoing embodiment 1, this embodiment 5 applies the driving support rod to other structures of the unmanned aerial vehicle body, and other unexplained matters are described with reference to the foregoing embodiment 1.

[0047] In the scene of the telescopic probe arm base that can be telescoped up and down, or the scene of the telescopic camera suspension base that can be telescoped up and down, etc., at this time, the telescopic rod assembly is installed on the body 15 or the rack 11, as shown in Figure 12 The driving support rod 2 is installed on the outer wall of the body 15, the camera base or the probe arm base is welded or hinged to the bottom end of the support rod, and the motor thereof is connected to the controller of the unmanned aerial vehicle body, so as to realize telescoping up and down. As shown in Figure 12 The unmanned aerial vehicle adopts a conventional fixed rod landing leg structure; of course, in another unmanned aerial vehicle example, it can also combine the telescopic landing leg structures of the foregoing embodiments 1-4.

[0048] Embodiment 6

[0049] The foregoing embodiments 1-4 of the unmanned aerial vehicle scheme include a landing rack scheme, this embodiment 8 briefly describes this, and other unexplained matters are described with reference to the foregoing embodiments 1-4.

[0050] The landing rack includes at least three landing legs, as shown in Figure 1 The four landing legs are evenly distributed in the circumference of the unmanned aerial vehicle body. The landing leg adopts the driving support rod as described before, as a vertical leg segment, or as a horizontal leg segment, or as a vertical leg segment and a horizontal leg segment.

[0051] Embodiment 7

[0052] The foregoing embodiments 1-6 of the unmanned aerial vehicle and the landing rack scheme include a driving support rod scheme, this embodiment 7 briefly describes this, and other unexplained matters are described with reference to the foregoing embodiments 1-6.

[0053] Referring to Figures 1-12The driving support rod of the embodiment 7 comprises a driving assembly which provides power, further comprises a nut wheel, a support rod and a support, the support is provided with an upper section and a lower section, the support is provided with a limiting hole which penetrates the upper section and the lower section, the support rod is axially and slidingly connected to the limiting hole, a rotating groove is arranged between the upper section and the lower section, the nut wheel is arranged in the rotating groove and is rotatably connected to the support rod, the nut wheel is in transmission connection with the driving assembly, and the nut wheel can rotate to push the support rod to move up and down along the axial direction under the action of the driving assembly.

[0054] The support is fixedly installed on the external device, and the driving assembly is fixedly installed on the external device or the support.

[0055] The center of the nut wheel is provided with an inner hole, the wall surface of the inner hole is provided with an outer convex helical tooth, the outer wall of the support rod is provided with an inner recessed helical tooth which is matched with the outer convex helical tooth, and the inner hole of the nut wheel is helically connected to the outer wall of the support rod.

[0056] The driving assembly is a motor, and the transmission shaft of the motor is in transmission connection with the outer periphery of the nut wheel through a transmission gear. Alternatively, the transmission shaft of the motor is in transmission connection with the outer periphery of the nut wheel through a transmission belt wheel and a belt.

[0057] The width of the inner wall of the limiting hole of the support is matched with the outer wall of the support rod, the outer wall of the support rod is circular in the circumferential direction and is provided with at least one notch. The outer wall of the support rod is square in the circumferential direction and is provided with rounded corners at four corners; wherein the upper section and the lower section are both plate-shaped structures.

[0058] In a preferred example, a linear bearing is further included, and the outer wall of the support rod is connected to the limiting hole of the upper section and the lower section through the linear bearing respectively.

[0059] In a preferred example, a casing is further included, the casing is axially penetrated with a protection hole which is matched with the outer wall of the support rod, the casing is installed on the upper section or the lower section, and the support rod is arranged in the protection hole.

[0060] It should be noted that the above-mentioned examples of the embodiments can be preferred one or more than two combinations according to actual needs, and a set of combined technical features of multiple examples is adopted in the description of the drawings, which will not be described one by one. The take-off mechanism of the unmanned aerial vehicle in the above-mentioned embodiments is mainly applied to the unmanned aerial vehicle, and is also applicable to other devices in the same / equivalent scene.

[0061] It should be noted that the directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0062] The above description is a detailed description and example of the preferred embodiment of the present application, but these descriptions are not intended to limit the scope of the present application, and any equivalent changes or modifications made under the technical teaching of the present application should be within the scope of the patent protection of the present application.

Claims

1. A drive support rod comprising a drive assembly, the drive assembly providing power; characterized by: The nut wheel, the supporting rod and the support are further included, the support is provided with an upper section and a lower section, the support is provided with a limiting hole penetrating through the upper section and the lower section, the supporting rod is axially and slidingly connected to the limiting hole, a rotating groove is arranged between the upper section and the lower section, the nut wheel is arranged in the rotating groove and is rotatably connected to the supporting rod, the nut wheel is drivingly connected to the driving assembly, and the nut wheel is rotatable to push the supporting rod to move up and down along the axial direction under the action of the driving assembly.

2. The drive support bar of claim 1, wherein: The center of the nut wheel is provided with an inner hole, the wall surface of the inner hole is provided with an outer convex helical tooth, the outer wall of the supporting rod is provided with an inner recessed helical tooth matched with the outer convex helical tooth, and the inner hole of the nut wheel is helically connected to the outer wall of the supporting rod.

3. The drive support bar of claim 1, wherein: The driving assembly is an electric motor, and a transmission shaft of the electric motor is drivingly connected to the outer periphery of the nut wheel through a transmission gear.

4. The drive support bar of claim 1, wherein: The driving assembly is an electric motor, and a transmission shaft of the electric motor is drivingly connected to the outer periphery of the nut wheel through a transmission belt and a belt.

5. The drive support bar of claim 1, wherein: The width of the inner wall of the limiting hole of the support is matched with the outer wall of the supporting rod, the outer wall of the supporting rod is circular in the circumferential direction and is provided with at least one notch.

6. The drive support bar of claim 5, wherein: The outer wall of the supporting rod is square in the circumferential direction and is provided with rounded corners at four corners; and the upper section and the lower section are both plate-shaped structures.

7. The drive support bar of claim 1, wherein: The outer wall of the supporting rod is connected to the limiting hole of the upper section and the lower section through a linear bearing.

8. The drive support bar of claim 1, wherein: The support is further provided with a protector, the protector is axially penetrated through a protection hole matched with the outer wall of the supporting rod, the protector is mounted on the upper section or the lower section, and the supporting rod is arranged in the protection hole; and the support is fixedly mounted on the external device, and the driving assembly is fixedly mounted on the external device or the support.

9. A landing gear comprising at least 3 landing feet, said at least 3 landing feet being evenly distributed circumferentially around the body of the UAV; characterized in that: The landing leg adopts the driving supporting rod according to any one of claims 1-8.

10. A drone comprising a drone body and a telescopic pole assembly, the telescopic pole assembly being fitted to the drone body; characterized in that: The telescopic rod assembly adopts the driving supporting rod according to any one of claims 1-8.

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