WO2019140661A1

WO2019140661A1 - Landing gear and unmanned aerial vehicle

Info

Publication number: WO2019140661A1
Application number: PCT/CN2018/073513
Authority: WO
Inventors: 郭超凡; 冯建刚
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2018-01-19
Filing date: 2018-01-19
Publication date: 2019-07-25
Also published as: CN110300703A; CN110300703B

Abstract

A Landing gear (100) and an unmanned aerial vehicle (600). The unmanned aerial vehicle (600) comprises a body (50), an arm (40) connected to the body (50), and the landing gear (100) mounted on the free end of the arm (40). A support leg (20) is rotatably connected to a support (10); the support leg (20) comprises a second matching portion (21); the support leg (20) is rotated to enable landing gear (100) to switch between a folding state and an unfolding state. When the second matching portion (21) matches a first limiting portion (111), the landing gear (100) is in the folding state; when the second matching portion (21) rotates to match a second limiting portion (113), the landing gear (100) is in the unfolding state. The present invention occupies a small space and is easy to transport, carry, and store.

Description

Tripod and unmanned aerial vehicle

Technical field

The present application relates to the field of aircraft technology, and in particular to a tripod and an unmanned aerial vehicle having the same.

Background technique

An unmanned aerial vehicle is a non-manned aerial vehicle that is operated by a radio remote control device or a remote control device to perform a mission. In recent years, unmanned aerial vehicles have been developed and applied in many fields, such as civil, industrial and military applications. Unmanned aerial vehicles usually include a tripod to ensure a smooth and safe landing. However, the existing UAV footrests are fixed type, occupying a large space, and are inconvenient to transport, carry and store.

Summary of the invention

The application provides a tripod and an unmanned aerial vehicle, which occupy small space and is convenient for transportation, carrying and storage.

According to an aspect of the embodiments of the present application, a tripod includes: a bracket including a first mating portion, the first mating portion including a first limiting portion and a second limiting portion; and a leg rotatably coupled to a bracket, the leg includes a second mating portion; wherein the leg is rotated to cause the tripod to switch between a folded state and an open state, and when the second mating portion is engaged with the first limiting portion, the stand is at In the folded state, when the second engaging portion is rotated to cooperate with the second limiting portion, the stand is in an open state.

According to another aspect of the embodiments of the present application, an unmanned aerial vehicle includes an arm and a stand mounted on a free end of the arm, the stand comprising: a bracket including a first mating portion, the first mating The portion includes a first limiting portion and a second limiting portion; the leg is rotatably coupled to the bracket, the leg includes a second mating portion; wherein the leg is rotated to urge the tripod between the folded state and the open state Switching, when the second engaging portion is engaged with the first limiting portion, the stand is in a folded state, and when the second engaging portion is rotated to cooperate with the second limiting portion, the stand is in an open state.

The stand of the present application includes a bracket and a leg rotatable relative to the bracket, and by rotating the leg, the tripod can be caused to switch between a folded state and an open state. When the stand is in a folded state, it occupies a small space and is convenient for transportation and carrying.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing an embodiment of a stand of the present application in an open state.

2 is a schematic cross-sectional view showing the opening of the stand shown in FIG. 1.

Figure 3 is a schematic cross-sectional view of the stand shown in Figure 1 in a folded state.

4 is a perspective view of an embodiment of a bracket of the stand shown in FIG. 1.

Figure 5 is a perspective view of one embodiment of the legs of the stand shown in Figure 1.

Figure 6 is a perspective view showing an embodiment of the unmanned aerial vehicle of the present application in an open state of the tripod.

Figure 7 is a perspective view of the UAV of Figure 6 during the opening of the stand.

Figure 8 is a perspective view of the UAV of Figure 6 in a folded state of the stand.

Figure 9 is a perspective view showing the arm of the unmanned aerial vehicle of Figure 6 in a folded state.

Detailed ways

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with aspects of the present application as detailed in the appended claims.

The terminology used in the present application is for the purpose of describing particular embodiments, and is not intended to be limiting. The singular forms "a", "the" and "the" It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. Unless otherwise indicated, the terms "front", "rear", "lower" and/or "upper" are used for convenience of description and are not limited to one location or one spatial orientation. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.

The tripod and the unmanned aerial vehicle of the present application will be described in detail below with reference to the accompanying drawings. The features of the embodiments and embodiments described below may be combined with each other without conflict.

The UAV 600 of the present application can be used for aerial photography, mapping, and monitoring, but is not limited thereto. In other embodiments, the UAV 600 can also be used in agriculture, express delivery, providing network services, and the like. Referring to FIG. 1 to FIG. 9 , in the present embodiment, the unmanned aerial vehicle 600 includes a fuselage 50 , an arm 40 , a propeller 70 disposed on the arm 40 , and a stand 100 mounted to the free end of the arm 40 through the shaft 30 . The arm 40 can be unfolded or folded relative to the body 50.

In the illustrated embodiment, the arm 40 includes a pair of arms at the front end of the fuselage 50 and a pair of arms at the rear end of the body 50. In this embodiment, only a pair of arms located at the front end of the fuselage 50 are provided with a tripod 100 to raise the pan/tilt head camera, so that the pan/tilt camera does not detect the impact limit before the take-off. In other embodiments, the stand 100 can also be mounted on the pair of arms at the rear end of the body 50 according to actual needs, or the legs can be mounted on the two pairs of arms 40. Rack 100.

The stand 100 includes a bracket 10 and a leg 20 that is rotatably mounted to the bracket 10. In an embodiment, the bracket 10 is fixedly mounted to the arm 40. It will be appreciated that in other embodiments, the bracket 10 and the arm 40 may be integrally formed.

The stand 100 has a folded state and an open state. In the illustrated embodiment, the bracket 10 has a flat shape in which the width of the left and right sides is greater than the height, and the legs 20 are substantially elongated in a height greater than the width. When the leg 20 is perpendicular to the arm, the stand 100 is in an open state, and when the leg 20 is parallel to the arm, the stand 100 is in a folded state. In other embodiments, the bracket 10 and the legs 20 can take other shapes, without being limited thereto.

The bracket 10 includes a first mating portion 11 , and the first mating portion 11 includes a first limiting portion 111 and a second limiting portion 113 . The leg 20 is rotatably coupled to the bracket 10 and the leg 20 includes a second mating portion 21. The rotation of the leg 20 causes the tripod 100 to switch between the folded state and the open state. When the second mating portion 21 is engaged with the first limiting portion 111, the stand 100 is in a folded state, and when When the engaging portion 21 is rotated to cooperate with the second limiting portion 113, the stand 100 is in an open state. When it is desired to support the UAV, the legs 20 are rotated to bring the stand 100 open. When the unmanned aerial vehicle needs to be transported, carried or stored, the leg 20 is rotated to make the stand 100 in a folded state, and the stand 100 takes up a small space for transportation and carrying, and when folding the arm 40, please refer to the figure. 9. The tripod 100 in the folded state does not interfere with the propeller 70 or the arm.

The leg 20 is rotatably coupled to the bracket 10 by a shaft 30. In the illustrated embodiment, the corresponding positions of the bracket 10 and the legs 20 are respectively provided with

shaft holes

18, 28 that cooperate with the shaft 30. In other embodiments, the position of the shaft holes 18, 28 on the bracket 10 and the legs 20 can be set as desired.

The bracket 10 includes an elastic structure. In the illustrated embodiment, the elastic structure is a through groove 116 disposed at the periphery of the first fitting portion 11 , and the through groove 116 is disposed such that the first fitting portion 11 has elasticity. When the second engaging portion 21 is rotated from the first limiting portion 111 to the second limiting portion 113 or from the second limiting portion 113 to the first limiting portion 111, the first engaging portion 11 is elastically deformed. The second mating portion 21 is in elastic contact with the first mating portion 11. In this way, the second engaging portion 21 can be smoothly rotated, and a good hand feeling can be maintained in the process, and when the second engaging portion 21 is rotated to the first limiting portion 111 or the second limiting portion 113, the first The engaging portion 11 restores the deformation so that the second engaging portion 21 engages with the first limiting portion 111 or the second limiting portion 113 to keep the legs 20 open or folded.

In the illustrated embodiment, the through slot 116 includes a first through slot 1161 on a side of the first mating portion 11 and two second through slots 1163 extending from opposite ends of the first through slot 1161 , and two The two through grooves 1163 are located on opposite sides of the first mating portion 11 . In this embodiment, the first through groove 1161 and the second through groove 1163 extend linearly, and the extending direction of the two second through grooves 1163 is substantially perpendicular to the first through groove 1161 . In other embodiments, the two second through grooves 1163 may extend obliquely with respect to the first through grooves 1161 , and the second through grooves 1163 and the first through grooves 1161 may also extend non-linearly, such as curved, etc., or The entire through groove 116 is provided in a semicircular or curved configuration.

In another embodiment, the bracket 10 may not include an elastic structure, but the elastic structure is disposed on the leg 20, and similarly, a through groove may be provided around the second mating portion 21. Of course, in other embodiments, the first mating portion 11 and the second mating portion 21 may also be disposed as an elastic structure.

The elastic structure may also be an elastic member such as a spring, an elastic rubber member or the like provided in the first fitting portion 11 and/or the second fitting portion 12. In an embodiment, the elastic member is disposed in the first engaging portion 11 such that the first engaging portion 11 has elasticity, and when the second engaging portion 21 is rotated from the first limiting portion 111 to the second limiting portion 113, or During the rotation of the second limiting portion 113 to the first limiting portion 111, the first engaging portion 11 is elastically deformed, and the second engaging portion 21 is in elastic contact with the first engaging portion 11. Moreover, when the second engaging portion 21 is rotated to the first limiting portion 111 or the second limiting portion 113, the first engaging portion 11 is restored to deform so that the second engaging portion 21 and the first limiting portion 111 or the second limiting portion The portion 113 is engaged to keep the legs 20 open or folded. In other embodiments, the elastic member may be disposed in the first mating portion 11 or in the first mating portion 11 and the second mating portion 21, and details are not described herein.

In an embodiment, the first engaging portion 11 is a protruding structure, and the first limiting portion 111 and the second limiting portion 113 are respectively two side walls at an angle of the protruding structure, and the second engaging portion 21 is A protrusion that rotates between the first limiting portion 111 and the second limiting portion 113. The angle between the first limiting portion 111 and the second limiting portion 113 can be set according to specific needs and conditions. In the illustrated embodiment, the first mating portion 11 further includes two extending walls 115 respectively connected to the first limiting portion 111 and the second limiting portion 113, and a connecting wall 117 connecting the two extending walls. In the embodiment, the two extension walls 115 are substantially parallel, the angle between the two extension walls 115 and the corresponding first limiting portion 111 and the second limiting portion 113 is an obtuse angle, and the connecting wall 117 is substantially perpendicular to the two extensions. Wall 115. Of course, in other embodiments, the first mating portion 11 may also be other shapes, and is not limited thereto.

In an embodiment, the second mating portion 21 includes a main body 211 and an extending portion 213 that cooperate with the first limiting portion 111 and the second limiting portion 113. The main body 211 has opposite first side faces 2111 and second The side surface 2113 is formed by protruding from the first side surface 2111. When the tripod 100 is in the open state, the first side surface 2111 of the main body 211 and the second limiting portion 113 of the first mating portion 11 are closely matched. At this time, the extending portion 213 abuts against one extending wall 115 of the first engaging portion 11, so that the second engaging portion 21 and the first engaging portion 11 can be more reliably matched when the stand 100 is in an open state, avoiding the legs. 20 cooperates with the bracket 10 to be unstable and returns to the folded state. When the stand 100 is in the folded state, the second side 2113 of the main body 211 is tightly engaged with the first limiting portion 111 of the first mating portion 11 so that the leg 20 can be stably engaged with the bracket 10 to remain in the folded state.

In an embodiment, the first engaging portion 11 is provided with a chamfering function, and plays a guiding role when the second engaging portion 21 starts to rotate. In the illustrated embodiment, the chamfer range is between 110 degrees and 130 degrees, but is not limited thereto. In another embodiment, the first engaging portion 11 is not provided with chamfering, and the second engaging portion 21 is provided with chamfering, and can also serve as a guiding action when the second engaging portion 21 starts to rotate. In still another embodiment, the first mating portion 11 and the second mating portion 21 are each provided with a chamfer.

In one embodiment, the bracket 10 includes a body portion 12 and two clamping portions 13 extending from the body portion 12 to sandwich the legs 20 . The leg 20 includes a connecting end 23 that is rotatably mounted between the two clamping portions 13. In another embodiment, the leg 20 is provided with two clamping portions, and the bracket 10 is correspondingly provided with a connecting end, and the two clamping portions rotatably clamp the connecting end.

At least one of the two clamping portions 13 is provided with a first mating portion 11 , and a corresponding position of the connecting end 23 is provided with a second mating portion 21 . In the illustrated embodiment, the two clamping portions 13 are respectively provided with a first engaging portion 11 , the two first engaging portions 11 have the same shape, and the positions on the clamping portion 13 correspond to each other, and the connecting ends 23 are correspondingly arranged. There are two second mating portions 21, and the shapes of the two second mating portions 21 are also the same. In another embodiment, the shapes of the two first mating portions 11 are different, and the shapes of the two second mating portions 21 are also different. In still another embodiment, only one of the clamping portions 13 is provided with a first mating portion 11, and the connecting end 23 is correspondingly provided with a second mating portion.

In the illustrated embodiment, the two clamping portions 13 include opposite first faces 131 and recesses 133 recessed from the first faces 131 . The first mating portions 11 and the through grooves 116 are located in the recesses 133 . The height of the first mating portion 11 may be less than or equal to the depth of the recess 133. In other embodiments, the through slot 116 may also not be located within the recess 133, or only partially within the recess 133.

The connecting end 23 of the leg 20 includes a second surface 231 that cooperates with the first surface 131 , and the second mating portion 21 protrudes from the second surface 231 . When the stand 100 is in the folded state and the open state, the second fitting portion 21 is located in the recess 133. In an embodiment, the height of the second mating portion 21 is substantially the same as the depth of the recess 133. Thus, when the stand 100 is in the folded state and the open state, there is no large gap between the first face 131 of the bracket 10 and the second face 231 of the leg 20, and the structure is compact and stable. Of course, in other embodiments, the height of the second mating portion 21 may also be smaller than the depth of the recess 133. It is only necessary to satisfy the overlap of the first engaging portion 11 and the second engaging portion 21 in the height direction so that the two can be engaged when the stand 100 is opened or folded.

A slot 233 is disposed between the two second faces 231 of the connecting end 23 of the leg 20 such that the connecting end 23 has elasticity in a direction perpendicular to the second face 231 when the second engaging portion 21 is from the first limiting portion 111 During the rotation to the second limiting portion 113 or from the second limiting portion 113 to the first limiting portion 111, the connecting end 23 can also undergo a certain elastic deformation. In this embodiment, the slot 233 can also be used to receive the antenna of the drone. The leg 20 is further provided with a hollow portion 25 to reduce the weight of the leg and facilitate the opening of the leg.

The body portion 12 of the bracket 10 is provided with a stop portion 14 which is pressed against the stop portion 14 when the stand 100 is in an open state to prevent the leg 20 from opening a larger angle. The stop portion 14 is located between the two clamping portions 13. In the illustrated embodiment, the stop portion 14 is substantially perpendicular to the two clamping portions 13 and is located on one side of the recess 133, but is not limited thereto.

The stand 100 is further mounted with an antenna board 50. The leg 20 is provided with a receiving cavity 29 for receiving and fixing the antenna board 50. When the legs 20 are rotated, the antenna plates 50 rotate together. The antenna board 50 is connected to a flight control board (not shown) through an antenna in the slot 233. The antenna board 50 receives wireless communication signals and provides them to the flight control board. Since the antenna board 50 is disposed in the leg 20, and the wireless communication signal of the remote controller or other control terminal is usually from the bottom surface, that is, from the underside of the unmanned aerial vehicle to the unmanned aerial vehicle, the antenna board 50 is disposed in the absence of In the foot 20 below the human aircraft, the signal can be received quickly and easily.

For the method embodiment, since it basically corresponds to the device embodiment, the relevant parts of the device embodiment can be referred to. Method embodiments and device embodiments complement each other.

It should be noted that, in this context, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is any such actual relationship or order between entities or operations. The terms "including", "comprising" or "comprising" or "comprising" are intended to include a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also other items not specifically listed Elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The method and apparatus provided by the embodiments of the present invention are described in detail above. The principles and implementations of the present invention are described in the specific examples. The description of the above embodiments is only used to help understand the method of the present invention and At the same time, there will be changes in the specific embodiments and the scope of application according to the idea of the present invention, and the contents of the present specification should not be construed as limiting the present invention. .

The disclosure of this patent document contains material that is subject to copyright protection. This copyright is the property of the copyright holder. The copyright owner has no objection to the reproduction of the patent document or the patent disclosure in the official records and files of the Patent and Trademark Office.

Claims

A tripod, characterized in that the tripod comprises:

The bracket includes a first mating portion, and the first mating portion includes a first limiting portion and a second limiting portion;

a leg rotatably coupled to the bracket, the leg comprising a second mating portion;

The rotation of the leg causes the stand to switch between the folded state and the open state. When the second engaging portion is engaged with the first limiting portion, the stand is in a folded state, and when the second engaging portion is rotated to When the second limiting portion is engaged, the tripod is in an open state.
The stand according to claim 1, wherein the first engaging portion is a protruding structure, and the first limiting portion and the second limiting portion are respectively two side walls at an angle of the protruding structure The second engaging portion is a protrusion rotatable between the first limiting portion and the second limiting portion.
The stand according to claim 2, wherein the bracket further comprises an elastic structure.
The stand according to claim 3, wherein the elastic structure is a through groove provided at a periphery of the first fitting portion.
The through frame according to claim 4, wherein the through groove includes a first through groove on a side of the first engaging portion and two second through grooves extending from two ends of the first through groove, respectively. And the two second through slots are located on opposite sides of the first mating portion.
The stand according to claim 2, wherein the chamfer of the first mating portion is between 110 degrees and 130 degrees.
The stand according to claim 4, wherein the bracket comprises a body portion and two clamping portions extending from the body portion to clamp the legs.
The stand according to claim 7, wherein said leg includes a connecting end rotatably mounted between said two clamping portions.
The stand according to claim 8, wherein at least one of the two clamping portions is provided with the first engaging portion, and the second engaging portion is provided at a corresponding position of the connecting end.
The stand according to claim 9, wherein the clamping portion comprises a first surface and a recess recessed from the first surface, wherein the first engaging portion and the through slot are located in the recess Inside.
The stand according to claim 10, wherein the connecting end of the leg comprises a second face that cooperates with the first face, and the second mating portion protrudes from the second face.
The stand according to claim 10, wherein the second fitting portion is located in the recess when the stand is in the folded state and the open state.
The stand according to claim 11, wherein a slot is provided between the two second faces of the connecting end.
The stand according to claim 7, wherein the body portion of the bracket is provided with a stopping portion, and when the stand is in an open state, the connecting end end of the leg is pressed against the stopping portion. To avoid the legs opening a larger angle.
The stand according to claim 1, wherein said leg is rotatably coupled to the bracket by a shaft.
The stand according to claim 1, wherein the stand is in a folded state when the leg is parallel to the arm, and the stand is in an open state when the leg is perpendicular to the arm.
The stand according to claim 1, wherein the stand is further mounted with an antenna board.
The stand according to claim 17, wherein the leg is provided with a receiving cavity for receiving and fixing the antenna board.
An unmanned aerial vehicle, characterized in that the unmanned aerial vehicle comprises a fuselage and an arm connected to the fuselage, and a tripod mounted on a free end of the arm, the tripod comprising:

The bracket includes a first engaging portion, the first engaging portion includes a first limiting portion and a second limiting portion; the leg is rotatably coupled to the bracket, and the leg includes a second mating portion;

The rotation of the leg causes the stand to switch between the folded state and the open state. When the second engaging portion is engaged with the first limiting portion, the stand is in a folded state, and when the second engaging portion is rotated to When the second limiting portion is engaged, the tripod is in an open state.
The UAV according to claim 19, wherein the first engaging portion is a protruding structure, and the first limiting portion and the second limiting portion are respectively two sides at an angle of the protruding structure a wall, the second mating portion being a protrusion rotatable between the first limiting portion and the second limiting portion.
The UAV according to claim 20, wherein the bracket further comprises an elastic structure.
The UAV according to claim 21, wherein the elastic structure is a through groove provided at a periphery of the first fitting portion.
The UAV according to claim 22, wherein the through slot includes a first through slot on a side of the first mating portion and two second through slots extending from opposite ends of the first through slot And the two second through slots are located on opposite sides of the first mating portion.
The UAV according to claim 20, wherein the chamfer of the first mating portion is between 110 degrees and 130 degrees.
The UAV according to claim 22, wherein the bracket comprises a body portion and two clamping portions extending from the body portion to sandwich the legs.
The UAV according to claim 25, wherein said leg includes a connecting end rotatably mounted between said two clamping portions.
The UAV according to claim 26, wherein at least one of the two clamping portions is provided with the first engaging portion, and the second engaging portion is provided at a corresponding position of the connecting end.
The UAV according to claim 27, wherein the clamping portion includes a first surface and a recess recessed from the first surface, wherein the first mating portion and the through slot are located Inside the depression.
The UAV according to claim 28, wherein the connecting end of the leg comprises a second face that cooperates with the first face, and the second mating portion protrudes from the second face.
The UAV according to claim 28, wherein said second engaging portion is located in said recess when said stand is in a folded state and an open state.
The UAV according to claim 29, wherein a slot is provided between the two second faces of the connecting end.
The UAV according to claim 25, wherein the body portion of the bracket is provided with a stopping portion, and when the tripod is in an open state, the connecting end surface of the leg is pressed against the stopping portion To avoid the feet opening a larger angle.
The UAV according to claim 19, wherein said leg is rotatably coupled to the bracket by a shaft.
The UAV according to claim 19, wherein when the leg is parallel to the arm, the stand is in a folded state, and when the leg is perpendicular to the arm, the stand is at Open state.
The UAV according to claim 19, wherein the stand is further mounted with an antenna board.
The stand according to claim 35, wherein the leg is provided with a receiving cavity for receiving and fixing the antenna board.