Patent Publication Number: US-2022234718-A1

Title: Unmanned aerial vehicle

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application is a continuation of International Application No. PCT/CN2020/122539, filed on Oct. 21, 2020, which claims priority to Chinese patent application No. 201911001523.7, filed on Oct. 21, 2019, which is incorporated herein by reference in its entirety. 
    
    
     TECHNICAL FIELD 
     The present invention relates to the field of aircrafts and in particular, to an unmanned aerial vehicle. 
     BACKGROUND 
     At present, the rapid integration and separation of wings and a body of an unmanned aerial vehicle can facilitate the packaging and transportation of the unmanned aerial vehicle, which requires the connection between the body and the wings to meet the reliability of strength and rigidity without affecting the flight performance and requires easy and fast disassembly and assembly. 
     SUMMARY 
     To realize that connection between a body and wings of an unmanned aerial vehicle meets the reliability of strength and rigidity, does not affect the flight performance and facilitates disassembly and assembly, an objective of the present invention is to provide an unmanned aerial vehicle. 
     To achieve the foregoing objective, the present invention adopts the following technical solutions: 
     An unmanned aerial vehicle is provided, including a body and wings, where a first connection portion is disposed on one of the body and the wing and a second connection portion is disposed on the other of the body and the wing, the first connection portion and the second connection portion being detachably connected; and the first connection portion is engaged with the second connection portion and the body and the wing are locked by rotating or sliding the second connection portion. 
     Further, the first connection portion includes a latch member and a protrusion disposed on the latch member, a cross-sectional width of the protrusion being greater than a cross-sectional width of the latch member; and the second connection portion includes a locking member, where a guide groove for sliding of the latch member and a mounting groove for clamp fit with the protrusion are provided on the locking member, the guide groove being in communication with the mounting groove and a width of the guide groove being less than the cross-sectional width of the latch member. 
     Further, the first connection portion is disposed on the body and the second connection portion is disposed on the wing. 
     Further, a through hole is provided on the wing, the locking member is rotatably mounted in the through hole and a mounting hole adapted to the mounting groove is provided on a side wall of the through hole. 
     Further, the locking member is cylindrical. 
     Further, the second connection portion further includes a first limiting member disposed on the locking member and a second limiting member that matches the first limiting member to limit a rotation range of the locking member is disposed in the through hole. 
     Further, the second connection portion further includes a pressing block disposed at an end of the through hole to prevent the locking member from moving out of the through hole. 
     Further, the wing includes a wing body and a connecting bracket mounted on the wing body, the through hole being disposed on the connecting bracket. 
     Further, a sliding groove is provided on the wing and the locking member is a sliding block slidably mounted in the sliding groove. 
     Further, the second connection portion further includes an elastic member disposed in the sliding groove, one end of the elastic member abutting against an inner side of the sliding groove and the other end of the elastic member abutting against the locking member. 
     Further, the protrusion is spherical. 
     Further, a first electrical connector is disposed on the body and a second electrical connector in pluggable fit with the first electrical connector is disposed on the wing. 
     Further, a support member is disposed on one of the body and the wing and a clamping groove in clamp fit with the support member is disposed on the other of the body and the wing. 
     Further, the support member is tubular and a cross section of the support member is rectangular. 
     Further, there are two first connection portions and two second connection portions, where the two first connection portions are respectively disposed on two sides of the support member and the two second connection portions are respectively disposed on two sides of the support member. 
     Compared with the prior art, the present invention has the following beneficial effects: The first connection portion is disposed on one of the body and the wing and the second connection portion is disposed on the other of the body and the wing. The first connection portion is engaged with the second connection portion and the body and the wing are locked by rotating or sliding the second connection portion. In this way, the body can be conveniently assembled with or disassembled from the wing and the connection part meets the reliability of strength and rigidity and does not affect the flight performance. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic diagram of an unmanned aerial vehicle according to an embodiment of the present invention; 
         FIG. 2  is an exploded view of an unmanned aerial vehicle according to an embodiment of the present invention; 
         FIG. 3  is an enlarged view of A in  FIG. 2 ; 
         FIG. 4  is a schematic diagram of a first connection portion and a second connection portion according to an embodiment of the present invention; 
         FIG. 5  is a schematic diagram of a wing according to an implementation of the present invention; and 
         FIG. 6  is a schematic diagram of matching between a wing and a locking member according to another implementation of the present invention. 
         1 : Body;  10 : First connection portion;  11 : Latch member;  12 : Protrusion;  2 : Wing;  20 : Second connection portion;  21 : Locking member;  211 : Guide groove;  212 : Mounting groove;  22 : Through hole;  221 : Mounting hole;  222 : Second limiting member;  23 : First limiting member;  24 : Pressing block;  25 : Wing body;  26 : Connecting bracket;  27 : Sliding groove;  28 : Push button;  29 : Elastic member;  3 : Support member;  4 : Clamping groove;  5 : First electrical connector; and  6 : second electrical connector. 
     
    
    
     DETAILED DESCRIPTION 
     For ease of understanding the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, when a component is expressed as “being fixed to” another component, the component may be directly on the another component, or one or more intermediate components may exist between the component and the another component. When one component is expressed as “being connected to” another component, the component may be directly connected to the another component, or one or more intermediate components may exist between the component and the another component. The terms “vertical”, “horizontal”, “left”, “right” and similar expressions in this specification are merely used for an illustrative purpose. 
     Unless otherwise defined, meanings of all technical and scientific terms used in this specification are the same as those usually understood by a person skilled in art of the present invention. Terms used in the specification of the present invention are merely intended to describe objectives of the specific embodiments and are not intended to limit the present invention. A term “and/or” used in this specification includes any or all combinations of one or more related listed items. 
     The present invention is further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, the following embodiments or technical features may be arbitrarily combined into new embodiments in case of no conflicts. 
     As shown in  FIG. 1  to  FIG. 3 , an unmanned aerial vehicle provided in an embodiment of the present invention includes a body  1  and wings  2 . A first connection portion  10  is disposed on one of the body  1  and the wing  2 . A second connection portion  20  is disposed on the other of the body and the wing. The first connection portion  10  and the second connection portion  20  are detachably connected. The first connection portion  10  is engaged with the second connection portion  20 . The body  1  and the wing  2  are locked by rotating or sliding the second connection portion  20 . The second connection portion  20  is rotated or slid and the first connection portion  10  and the second connection portion  20  are separated to implement unlocking of the body  1  from the wing  2 , which facilitates the disassembly and assembly, meets the reliability of strength and rigidity and does not affect the flight performance 
     As shown in  FIG. 2  to  FIG. 4 , the first connection portion  10  includes a latch member  11  and a protrusion  12  disposed on the latch member  11 , a cross-sectional width of the protrusion  12  being greater than a cross-sectional width of the latch member  11 . The second connection portion  20  includes a locking member  21 . A guide groove  211  for sliding of the latch member  11  and a mounting groove  212  for clamp fit with the protrusion  12  are provided on the locking member  21 . The guide groove  211  is in communication with the mounting groove  212 . A width of the guide groove  211  is less than the cross-sectional width of the latch member  11 . When the locking member is moved until the mounting groove  212  is aligned with the protrusion  12 , the protrusion  12  extends into the locking member  21  through the mounting groove  212 . The locking member  21  is moved to cause the latch member  11  to slide into the guide groove  211 . In this way, the latch member  11  is locked with the locking member  21 , thereby locking the first connection portion  10  and the second connection portion  20 . When the locking member  21  is moved, to cause the latch member  11  to slide in the guide groove  211  to align the protrusion  12  with the mounting groove  212 , the latch member  11  is pulled out, thereby unlocking the first connection portion  10  from the second connection portion  20 . 
     As shown in  FIG. 3 , in an embodiment, the first connection portion  10  is disposed on the body  1  and the second connection portion  20  is disposed on the wing  2 . That is, the latch member  11  is protruded on the body  1  and the locking member  21  is movably mounted on the wing  2 . 
     As shown in  FIG. 3  to  FIG. 5 , in an implementation, a through hole  22  is provided on the wing  2 . The locking member  21  is cylindrical. The locking member  21  is rotatably mounted in the through hole  22 . A mounting hole  221  adapted to the mounting groove  212  is provided on a side wall of the through hole  22 . The protrusion  12  is spherical, which reduces friction on the second connection portion  20  during mounting and removal. When the locking member  21  is rotated to align the mounting groove  212  with the mounting hole  221 , the protrusion  12  extends into the mounting groove  212 . The locking member  21  is rotated to cause the latch member  11  to slide into the guide groove  211  to implement locking. 
     Further, the second connection portion  20  further includes a first limiting member  23  disposed on the locking member  21 . A second limiting member  222  that matches the first limiting member  23  to limit a rotation range of the locking member  21  is disposed in the through hole  22 , so that the first connection portion  10  and the second connection portion  20  are fixed more firmly. 
     Further, the second connection portion  20  further includes a pressing block  24  disposed at an end of the through hole  22  to prevent the locking member  21  from moving out of the through hole  22 . The pressing block  24  is fixed on the wing  2  by bolts. 
     Further, the wing  2  includes a wing body  25  and a connecting bracket  26  mounted on the wing body  25 . The through hole  22  is provided on the connecting bracket  26 . The connecting bracket  26  may be inserted into the wing body  25 , may be glued into the wing body  25 , or may be fixed on the wing body  25  by bolts. 
     As shown in  FIG. 6 , in another implementation, a sliding groove  27  is provided on the wing  2  and the locking member  21  is a sliding block slidably mounted in the sliding groove  27 . A push button  28  for pushing the locking member  21  is disposed on the locking member  21 . When the push button  28  is pushed to cause the locking member  21  to slide until the mounting groove  212  is aligned with the protrusion  12 , the protrusion  12  extends into the locking member  21  through the mounting groove  212 . The locking member  21  is slid to cause the latch member  11  to slide into the guide groove  211  to implement locking. The locking member  21  is slid to align the mounting groove  212  with the protrusion  12  and the latch member  11  is pulled out to implement unlocking. 
     Further, the second connection portion  20  further includes an elastic member  29  disposed in the sliding groove  27 . One end of the elastic member  29  abuts against an inner side of the sliding groove  27 . The other end of the elastic member  29  abuts against the locking member  21 . The elastic member  29  is configured to provide a restoring force for the locking member  21  to ensure the reliability of the connection between the first connection portion  10  and the second connection portion  20 . 
     As shown in  FIG. 2  to  FIG. 5 , in an embodiment, a support member  3  is disposed on one of the body  1  and the wing  2  and a clamping groove  4  in clamp fit with the support member  3  is provided on the other of the body and the wing. As shown in  FIG. 3 , an end of the support member  3  is fixed on the body  1 . The clamping groove  4  is provided on the wing  2 . When the wing  2  is mounted, the wing  2  is first mounted on the support member  3  through the clamping groove  4 , to implement rough positioning and make the mounting faster. In addition, the support member  3  plays a role in supporting the wing  2 , making the connection part firmer. The support member  3  is tubular and a cross section of the support member  3  is rectangular, to reduce the weight of the unmanned aerial vehicle. 
     As shown in  FIG. 3 , there are two first connection portions  10  and two second connection portions  20  connecting each wing  2  to the body  1 . The two first connection portions  10  are respectively disposed on two sides of the support member  3 . The two second connection portions  20  are respectively disposed on two sides of the support member  3 . 
     It may be understood that in another embodiment, the first connection portion  10  is disposed on the wing  2  and the second connection portion  20  is disposed on the body  1 . That is, the latch member  11  is protruded on the wing  2  and the locking member  21  is movably mounted on the body  1 . 
     As shown in  FIG. 3  and  FIG. 5 , a first electrical connector  5  is disposed on the body  1  and a second electrical connector  6  in pluggable fit with the first electrical connector  5  is disposed on the wing  2 . The wing  2  is electrically connected to the first electrical connector  5  through the second electrical connector  6  to obtain a control instruction. 
     The foregoing embodiments are merely exemplary implementations of the present invention and cannot be used to limit the protection scope of the present invention. Any insubstantial change and substitution made by those skilled in the art based on the present invention belongs to the protection scope required by the present invention.