Unmanned aerial vehicle arm locking assembly, unmanned aerial vehicle arm and unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle arm locking assembly, an unmanned aerial vehicle arm and an unmanned aerial vehicle. The arm locking assembly comprises a first fixing piece, a second fixing piece and a locking piece, wherein a fixing structure is arranged on the first fixing piece; the first fixing part and the second fixing part can be folded; the locking piece comprises a first locking connecting rod, a second locking connecting rod and an elastic connecting piece; the first end of the first locking connecting rod is rotatably arranged at the end, close to the second fixing piece, of the first fixing piece, the first end of the second locking connecting rod is rotatably arranged on the second fixing piece, the second end of the second locking connecting rod is rotatably connected with the second end of the first locking connecting rod, and the second end of the second locking connecting rod is connected with the fixing structure through an elastic connecting piece. In the locking state, the second end of the second locking connecting rod is arranged between the first end of the first locking connecting rod and the elastic connecting piece, and the elastic connecting piece deforms to provide elastic acting force. The unmanned aerial vehicle arm adopting the locking assembly can be firmly locked.

Description

Technical Field

[0001] The present application relates to the technical field of drones, and in particular to a drone arm locking assembly, a drone arm, and a drone. Background Art

[0002] Drones are a rapidly developing flying device that has the advantages of maneuverability, quick response, unmanned flight, and low operating requirements. They can be widely used in agriculture, exploration, photography, border patrol and other fields.

[0003] Common drone arms are typically constructed from a single piece. Long arms require significant space during transport and storage, making them less portable. Previous attempts to reduce their size have employed folding arms, but the locking mechanism between the arms is not secure enough when the arms are unfolded, resulting in low reliability. Utility Model Content

[0004] The present application provides a drone arm locking assembly, a drone arm, and a drone.

[0005] A technical solution provided by this application is to provide an arm locking assembly for a drone, the arm locking assembly comprising:

[0006] a first fixing member, wherein a fixing structure is provided on the first fixing member;

[0007] a second fixing member, wherein the first fixing member and the second fixing member are foldable;

[0008] The locking member includes: a first locking link, a second locking link and an elastic connecting member;

[0009] The first end of the first locking link is rotatably disposed on an end of the first fixing member close to the second fixing member, the first end of the second locking link is rotatably disposed on the second fixing member, the second end of the second locking link is rotatably connected to the second end of the first locking link, and the second end of the second locking link is connected to the fixing structure via an elastic connecting member;

[0010] In the locked state, the second end of the second locking link is disposed between the first end of the first locking link and the elastic connecting member, and the elastic connecting member is deformed to provide a first elastic force.

[0011] Optionally, the first fixing member is further provided with a limiting member, and a first surface of the limiting member is parallel to the axial direction of the first fixing member;

[0012] In the locked state, the first locking link is in contact with the first surface of the limiting member.

[0013] Optionally, the second surface of the limiting member forms a preset angle with the axial direction of the first fixing member;

[0014] In the folded state, the first locking link is in contact with the second surface of the limiting member, and the elastic connecting member is deformed to provide a second elastic force, wherein the second elastic force is greater than the first elastic force.

[0015] Optionally, the second locking link includes a first sub-link, a second sub-link and a third sub-link;

[0016] The first locking link includes a fourth sub-link and a fifth sub-link;

[0017] The first end of the fourth sub-connecting rod is rotatably disposed on an end of the first fixing member close to the second fixing member, the first end of the first sub-connecting rod is rotatably disposed on the second fixing member, and the second end of the first sub-connecting rod is rotatably connected to the second end of the fourth sub-connecting rod;

[0018] The first end of the fifth sub-connecting rod is rotatably disposed on an end of the first fixing member close to the second fixing member, the first end of the second sub-connecting rod is rotatably disposed on the second fixing member, and the second end of the second sub-connecting rod is rotatably connected to the second end of the fifth sub-connecting rod;

[0019] The second end of the first sub-connecting rod is fixedly connected to the second end of the second sub-connecting rod via a third sub-connecting rod;

[0020] In the locked state, the third sub-connecting rod is in contact with the first fixing member.

[0021] Optionally, the arm locking assembly further includes a first rotating member, and the first fixing member and the second fixing member are folded through the first rotating member.

[0022] Optionally, the first end of the first locking link is arranged on an end of the first fixing member close to the second fixing member through the second rotating member;

[0023] The first end of the second locking link is disposed on the second fixing member via a third rotating member;

[0024] The second end of the second locking link is connected to the second end of the first locking link through a fourth rotating member.

[0025] Optionally, the first fixing member and the second fixing member are cylindrical.

[0026] Another solution provided by the present application is to provide a drone arm, which includes a main arm and a folding arm, and the main arm and the folding arm are connected by an arm locking assembly, wherein the arm locking assembly is the arm locking assembly as described above.

[0027] Optionally, the first fixing member and the second fixing member are both provided with a hollow structure inside, for accommodating the main body arm or the folding arm respectively;

[0028] Another solution provided by the present application is to provide a drone, which includes the drone arm as described above, and the drone arm also includes the arm locking assembly as described above.

[0029] The beneficial effects of the present application are as follows: the arm locking assembly includes a first fixing member, a fixing structure is provided on the first fixing member; a second fixing member, the first fixing member and the second fixing member are foldable; a locking member, the locking member includes: a first locking link, a second locking link and an elastic connecting member; wherein, the first end of the first locking link is rotatably provided on an end of the first fixing member close to the second fixing member, the first end of the second locking link is rotatably provided on the second fixing member, the second end of the second locking link is rotatably connected to the second end of the first locking link, and the second end of the second locking link is rotatably connected to the second end of the first locking link. The fixing structure is connected by an elastic connecting piece; in the locked state, the second locking link arranged on the second fixing piece is connected to the fixing structure arranged on the first fixing piece through the elastic connecting piece, so that a four-bar structure is formed between the first fixing piece, the second fixing piece, the first locking link and the second locking link. Furthermore, the transmission angle between the first locking link and the second locking link is 0, that is, the first locking link is located at the four-bar dead point position. At this time, the second locking link cannot drive the first locking link to continue moving, so that the locking piece can firmly lock the first fixing piece and the second fixing piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 This is a structural diagram of an embodiment of an arm locking assembly provided by the present application;

[0032] Figure 2 Yes Figure 1 An exploded view of the arm locking assembly is shown;

[0033] Figure 3 Yes Figure 1 The structure diagram of the arm locking assembly shown in the folded state;

[0034] Figure 4 Yes Figure 1 The structure diagram of another embodiment of the arm locking assembly is shown. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] The terms "first," "second," and the like in this application are used to distinguish between different objects, rather than to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to the process, method, or device.

[0037] like Figures 1-4 As shown, the arm locking assembly 1 provided in the present application includes a first fixing member 11 , a second fixing member 12 and a locking member 13 .

[0038] The first fixing member 11 is provided with a fixing structure 111. Optionally, the fixing structure 111 may be a buckle.

[0039] Furthermore, the first fixing member 11 and the second fixing member 12 are foldable.

[0040] Optionally, the first fixing member 11 and the second fixing member 12 are both hollow structures for accommodating the first arm 2 and the second arm 3 respectively.

[0041] In some embodiments, the first end of the first arm 2 is fixed to the first fixing member 11, and a rotor is provided on the second end of the first arm 2. The first end of the second arm 3 is fixed to the second fixing member 12, and the second end of the second arm 3 is fixed to the drone body.

[0042] In this embodiment, the locking member 13 further includes a first locking link 14 , a second locking link 15 and an elastic connecting member 16 .

[0043] The first end 141 of the first locking link 14 is rotatably mounted on an end of the first fixing member 11 that is close to the second fixing member 12. That is, the first end 141 of the first locking link 14 is mounted on the first fixing member 11. The first end 151 of the second locking link 15 is rotatably mounted on the second fixing member 12. The second end 152 of the second locking link 15 is rotatably connected to the second end 142 of the first locking link 14. The second end 152 of the second locking link 15 is connected to the fixing structure 111 via the elastic connector 16.

[0044] In some embodiments, hole structures are respectively provided on the second end 152 and the fixed structure 111, and hooks are provided at both ends of the elastic connector 16. Furthermore, the hooks of the elastic connector 16 respectively cooperate with the second end 152 of the second locking link 15 and the hole structures on the fixed structure 111 to achieve connection between the three.

[0045] Optionally, the elastic connecting member 16 may be a spring.

[0046] Furthermore, when the locking member 13 is in the locked state, the second end 152 of the second locking link 15 is disposed between the first end 141 of the first locking link 14 and the elastic connector 16, and the elastic connector 16 deforms to provide a first elastic force. When the locking member 13 is in the locked state, a four-bar linkage structure is formed between the first fixing member 11, the second fixing member 12, the first locking link 14, and the second locking link 15. Furthermore, the first locking link 14 is at the four-bar linkage dead point, thereby firmly locking the first fixing member 11 and the second fixing member 12.

[0047] In some application scenarios, the locking member 13 is in a locked state, the deformation of the elastic connecting member 16 causes the elastic connecting member 16 to be in a first tensile state, and the first elastic force generated by the elastic connecting member 16 causes the locking member 13 to maintain the locked state.

[0048] Optionally, the first fixing member 11 is further provided with a limiting member 112 , and a first surface of the limiting member 112 is parallel to the axial direction of the first fixing member 11 .

[0049] When the locking member 13 is in the locked state, the first locking link 14 is in contact with the first surface of the limiting member 112 .

[0050] Optionally, the second surface of the limiting member 112 forms a preset angle with the axial direction of the first fixing member 11 , that is, the included angle between the first surface and the second surface of the limiting member 112 is the preset angle.

[0051] When the locking member 13 is in the folded state, the first locking link 14 is in contact with the second surface of the limiting member 112 , and the elastic connecting member 16 is deformed to provide a second elastic force, wherein the second elastic force is greater than the first elastic force.

[0052] In some application scenarios, the locking member 13 is in a folded state, and the deformation of the elastic connecting member 16 causes the elastic connecting member 16 to be in a second stretched state. The second elastic force generated by the elastic connecting member 16 maintains the locking member 13 in the folded state and prevents the locking member 13 from automatically returning to the locked state.

[0053] It is worth noting that when the locking member 13 is in the locked state, the elastic connecting member 16 provides a first elastic force toward the fixing structure 111 to prevent the locking member 13 from automatically returning to the folded state from the locked state.

[0054] Likewise, when the locking member 13 is in the folded state, the elastic connecting member 16 provides a second elastic force toward the fixing structure 111 to prevent the locking member 13 from automatically returning to the locked state from the folded state.

[0055] The above solution utilizes the elasticity of the elastic connecting member to ensure that the locking member is stably maintained in the locked state or the folded state.

[0056] like Figure 4 As shown, optionally, the second locking link 15 includes a first sub-link 171 , a second sub-link 172 and a third sub-link 173 , and the first locking link 14 includes a fourth sub-link 174 and a fifth sub-link 175 .

[0057] In some embodiments, the first sub-connecting rod 171 , the third sub-connecting rod 173 , and the second sub-connecting rod 172 are connected in sequence.

[0058] In some embodiments, the second end of the first sub-connecting rod 171 and the second end of the second sub-connecting rod 172 are fixedly connected via a third sub-connecting rod 173 .

[0059] The first end 1741 of the fourth sub-connecting rod 174 is rotatably mounted on an end of the first fixing member 11 that is close to the second fixing member 12. The first end 1711 of the first sub-connecting rod 171 is rotatably mounted on the second fixing member 12. The second end 1712 of the first sub-connecting rod 171 is rotatably connected to the second end 1742 of the fourth sub-connecting rod 174. It is understood that the first end 1741 of the fourth sub-connecting rod 174 is rotatably mounted on the first fixing member 11.

[0060] Furthermore, the first end 1751 of the fifth sub-connecting rod 175 is rotatably mounted on an end of the first fixing member 11 that is close to the second fixing member 12, the first end 1721 of the second sub-connecting rod 172 is rotatably mounted on the second fixing member 12, and the second end 1722 of the second sub-connecting rod 172 is rotatably connected to the second end of the fifth sub-connecting rod 175. It is understood that the first end 1751 of the fifth sub-connecting rod 175 is rotatably mounted on the first fixing member 11.

[0061] In the locked state, the third sub-connecting rod 173 is in contact with the first fixing member 11 .

[0062] In some embodiments, a handle structure is provided on the third sub-connecting rod 173 , and the user can lock or fold the arm locking assembly 1 by operating the handle structure.

[0063] Optionally, the arm locking assembly 1 further includes a first rotating member 21 , and the first fixing member 11 and the second fixing member 12 are folded through the first rotating member 21 .

[0064] Optionally, the first rotating member 21 is a rotating pin.

[0065] Optionally, the first end 141 of the first locking link 14 is disposed at an end of the first fixing member 11 close to the second fixing member 12 through the second rotating member 22 .

[0066] Furthermore, the first end 151 of the second locking link 15 is disposed on the second fixing member 12 via the third rotating member 23 . The second end 152 of the second locking link 15 is connected to the second end 142 of the first locking link 14 via the fourth rotating member 24 .

[0067] Optionally, at least one of the second rotating member 22 , the third rotating member 23 , and the fourth rotating member 24 is a rotating pin.

[0068] Optionally, the first fixing member 11 and the second fixing member 12 are cylindrical.

[0069] In the above scheme, in the locked state, the second locking link provided on the second fixing member is connected to the fixing structure provided on the first fixing member through an elastic connecting member, so that a four-bar structure is formed between the first fixing member, the second fixing member, the first locking link, and the second locking link. Furthermore, the transmission angle between the first locking link and the second locking link is 0, that is, the first locking link is located at the four-bar dead point position. At this time, the second locking link cannot drive the first locking link to continue moving, so that the locking member can firmly lock the first fixing member and the second fixing member.

[0070] The present application also provides a drone arm, which includes a main arm and a folding arm, and the main arm and the folding arm are connected by an arm locking assembly, wherein the arm locking assembly is the above-mentioned arm locking assembly 1.

[0071] In some embodiments, a first end of the main arm is connected to the drone body, a second end of the main arm is connected to the arm locking assembly, a first end of the folding arm is connected to the arm locking assembly, and a second end of the folding arm is provided with a rotor motor.

[0072] In some embodiments, the first end of the folding arm is connected to the drone body, and the second end of the folding arm is connected to the arm locking assembly. The first end of the main arm is connected to the arm locking assembly, and the second end of the main arm is provided with a rotor motor.

[0073] Specifically, the arm locking assembly includes a first fixing member, a second fixing member, and a locking member. The first fixing member is provided with a fixing structure, the second fixing member is provided with a limit position, and the locking member includes a first locking link, a second locking link, and an elastic connector. Furthermore, the first end of the first locking link is rotatably mounted on an end of the first fixing member proximate to the second fixing member, the first end of the second locking link is rotatably mounted on the second fixing member, the second end of the second locking link is rotatably connected to the second end of the first locking link, and the second end of the second locking link is connected to the fixing structure via an elastic connector.

[0074] In some embodiments, the first fixing member and the second fixing member are both provided with a hollow structure inside, for accommodating the main body arm or the folding arm respectively.

[0075] In some application scenarios, when the user needs to switch the drone arm from a folded state to an unfolded state, the arm locking assembly needs to be switched from a folded state to a locked state. Specifically, the second locking link is rotated clockwise, which drives the first locking link to rotate clockwise. When the second locking link rotates counterclockwise to a certain angle, the second locking link stops rotating. Under the elastic action of the elastic connector, the first locking link aligns with the first surface of the limit bone of the second fixed member. At this point, a four-bar linkage structure is formed between the first fixed member, the second fixed member, the first locking link, and the second locking link. Furthermore, when viewed from a rotation plane perpendicular to the first locking link, the transmission angle between the first locking link and the second locking link is 0, that is, the first locking link is at the four-bar dead center position, and the second locking link cannot drive the first locking link to rotate further counterclockwise. At this point, the arm locking assembly is in a locked state, the first fixed member and the second fixed member are coaxial, and the main arm and the folding arm are coaxial.

[0076] In some application scenarios, when the user needs to switch the drone arm from the deployed state to the locked state, the arm locking assembly needs to be switched from the locked state to the folded state. Specifically, the second locking link is operated to rotate clockwise, and the second locking link drives the first locking link to rotate clockwise. When the second locking link rotates clockwise to a certain angle, the second locking link stops rotating. Under the elastic action of the elastic connector, the first locking link fits into the second surface of the limiting bone position of the second fixing member. At this time, a four-bar linkage structure is formed between the first fixing member, the second fixing member, the first locking link, and the second locking link. Furthermore, viewed from the rotation plane perpendicular to the first locking link, the transmission angle between the first locking link and the second locking link is 0, that is, the first locking link is in the four-bar dead point position, and the second locking link cannot drive the first locking link to rotate further clockwise. At this time, the machine arm locking assembly is in a folded state, and the axis of the first fixing member is staggered with the axis of the second fixing member, that is, the main arm and the folding arm are in a folded state.

[0077] In the locked state, the second locking link provided on the second fixing member is connected to the fixing structure provided on the first fixing member through an elastic connecting member, so that a four-bar structure is formed between the first fixing member, the second fixing member, the first locking link and the second locking link. Furthermore, the transmission angle between the first locking link and the second locking link is 0, that is, the first locking link is located at the four-bar dead point position. At this time, the second locking link cannot drive the first locking link to continue moving, so that the locking member can firmly lock the first fixing member and the second fixing member.

[0078] It is worth noting that when the drone arm is in the deployed state, that is, the arm locking member is in the locked state, the elastic connector provides a first elastic force toward the fixed structure, preventing the arm locking member from automatically returning to the folded state from the locked state, and further preventing the drone arm from automatically switching to the locked state when deployed.

[0079] Similarly, when the drone arm is locked, that is, the arm locking member is folded, the elastic connector 16 provides a second elastic force toward the fixed structure 111, preventing the locking member 13 from automatically returning to the locked state from the folded state. Furthermore, this prevents the drone arm from automatically switching to the deployed state while locked.

[0080] The above solution utilizes the elasticity of the elastic connector to stably maintain the arm locking member in a locked state or a folded state, and further stably maintains the drone arm in an expanded state or a locked state, thereby improving the safety of the drone.

[0081] The present application also provides a drone, comprising a drone body and a drone arm, wherein a first end of the drone arm is connected to the drone body, and a rotor motor is provided on a second end of the drone arm. The drone arm is the drone arm described above.

[0082] In the above scheme, in the locked state, the second locking link provided on the second fixing member is connected to the fixing structure provided on the first fixing member through an elastic connecting member, so that a four-bar structure is formed between the first fixing member, the second fixing member, the first locking link, and the second locking link. Furthermore, the transmission angle between the first locking link and the second locking link is 0, that is, the first locking link is located at the four-bar dead point position. At this time, the second locking link cannot drive the first locking link to continue moving, so that the locking member can firmly lock the first fixing member and the second fixing member.

[0083] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Equivalent structures or equivalent process changes made by utilizing the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A UAV arm locking assembly, characterized in that: The arm locking assembly includes: a first fixing member, wherein a fixing structure is provided on the first fixing member; a second fixing member, wherein the first fixing member and the second fixing member are foldable; A locking member, comprising: a first locking link, a second locking link, and an elastic connecting member; wherein the first end of the first locking link is rotatably disposed on an end of the first fixing member close to the second fixing member, the first end of the second locking link is rotatably disposed on the second fixing member, the second end of the second locking link is rotatably connected to the second end of the first locking link, and the second end of the second locking link is connected to the fixing structure via the elastic connecting member; In the locked state, the second end of the second locking link is disposed between the first end of the first locking link and the elastic connector, and the elastic connector is deformed to provide a first elastic force.

2. The machine arm locking assembly according to claim 1, characterized in that: The first fixing member is further provided with a limiting member, wherein a first surface of the limiting member is parallel to the axial direction of the first fixing member; In the locked state, the first locking link is in contact with the first surface of the limiting member.

3. The machine arm locking assembly according to claim 2, characterized in that: The second surface of the limiting member forms a preset angle with the axial direction of the first fixing member; In the folded state, the first locking link is in contact with the second surface of the limiting member, and the elastic connecting member is deformed to provide a second elastic force, wherein the second elastic force is greater than the first elastic force.

4. The machine arm locking assembly according to claim 3, characterized in that: The second locking link includes a first sub-link, a second sub-link and a third sub-link; The first locking link includes a fourth sub-link and a fifth sub-link; The first end of the fourth sub-connecting rod is rotatably disposed on an end of the first fixing member close to the second fixing member, the first end of the first sub-connecting rod is rotatably disposed on the second fixing member, and the second end of the first sub-connecting rod is rotatably connected to the second end of the fourth sub-connecting rod; The first end of the fifth sub-connecting rod is rotatably disposed on an end of the first fixing member close to the second fixing member, the first end of the second sub-connecting rod is rotatably disposed on the second fixing member, and the second end of the second sub-connecting rod is rotatably connected to the second end of the fifth sub-connecting rod; The second end of the first sub-connecting rod is fixedly connected to the second end of the second sub-connecting rod via the third sub-connecting rod; In the locked state, the third sub-connecting rod is in contact with the first fixing member.

5. The machine arm locking assembly according to claim 1, characterized in that: The arm locking assembly further includes a first rotating member, and the first fixing member and the second fixing member are folded by the first rotating member.

6. The machine arm locking assembly according to claim 1, characterized in that: The first end of the first locking link is disposed on an end of the first fixing member close to the second fixing member through a second rotating member; The first end of the second locking link is disposed on the second fixing member via a third rotating member; The second end of the second locking link is connected to the second end of the first locking link through a fourth rotating member.

7. The machine arm locking assembly according to claim 1, characterized in that: The first fixing member and the second fixing member are cylindrical.

8. A drone arm, characterized in that: The drone arm includes a main arm and a folding arm, and the main arm and the folding arm are connected via an arm locking assembly, wherein the arm locking assembly is the arm locking assembly as described in any one of claims 1-7.

9. The drone arm according to claim 8, characterized in that: The first fixing member and the second fixing member are both provided with a hollow structure inside, for accommodating the main body arm or the folding arm respectively.

10. A drone, characterized in that: The drone comprises the drone arm according to any one of claims 8-9, and the drone arm further comprises the arm locking assembly according to any one of claims 1-7.

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