Fixed connecting device for fuselage and wings of unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle fuselage and wing fixed connecting device, which relates to the technical field of unmanned aerial vehicles and comprises a shell, a locking frame is sleeved in the shell, an annular table is arranged on the periphery of the locking frame, the annular table gradually shrinks towards one side deviating from the locking frame, and the side wall of the annular table is attached to an inner cavity of the shell; the locking frame is sleeved with a first elastic piece, and the first elastic piece is clamped between the end face of the annular table and the port of the shell. The locking rod is arranged in the locking frame in a penetrating mode, and a locking groove is formed in one end of the locking rod; the lock beads are arranged on the side wall of the annular table, and when the lock rod is in a locked state, the lock beads abut against the locking groove and the inner wall of the shell; the control wrench is rotatably connected to the end, away from the annular table, of the locking frame, the rotating axis of the control wrench is perpendicular to the locking frame, and the technical problem that an existing unmanned aerial vehicle fuselage and wing fixing and connecting device cannot meet the two quality indexes of convenient installation and vibration loosening prevention at the same time is solved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV fuselage and wing fixing connection device. Background Technology

[0002] Existing small and medium-sized drones typically employ a segmented design for ease of transport, manufacturing, packaging, and shipping the fuselage and wings separately. During use, the fuselage and wings only need to be joined together using a locking device; no further operation of the locking device is required to secure them. Currently, there are generally two methods for connecting the fuselage and wings of drones: one is using bolts, which ensures a tight connection between the fuselage and wings and prevents loosening due to vibration during drone operation, but the disadvantage is that it requires additional tools for installation, making it inconvenient to use; the second is using commercially available universal latches, which, while convenient to operate, cannot effectively prevent vibration from causing the fuselage and wings to loosen.

[0003] In summary, developing a simple installation method that can prevent the fuselage and wings of a drone from loosening due to vibration is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to provide a fixed connection device for the fuselage and wings of a drone, which solves the technical problem that the existing drone fuselage and wing connection methods cannot simultaneously meet the two quality indicators of convenient connection and effective prevention of vibration causing the fuselage and wings to loosen.

[0005] To achieve the above objectives, this utility model provides a fixed connection device for the fuselage and wing of a drone, comprising:

[0006] The housing has a locking frame inside its cavity. A ring platform is fitted around the outer periphery of the locking frame and is located at one end of the locking frame in the longitudinal direction. Along the length of the locking frame, the sidewall of the ring platform tapers, and the tapered end of the sidewall of the ring platform is located away from the locking frame. The sidewall of the ring platform fits into the inner cavity of the housing. A first elastic element is fitted around the locking frame and is clamped between the end face of the ring platform and the port of the housing.

[0007] The locking bar passes through the inside of the locking frame, with its side wall fitting against the inner wall of the locking frame, and a locking groove at one end of the locking bar.

[0008] Several locking beads are evenly distributed on the side wall of the ring platform. When the locking rod is in the locked state, each locking bead abuts against the locking groove and the inner wall of the housing, respectively.

[0009] A control wrench is rotatably connected to one end of the locking frame away from the ring platform. The rotation axis of the control wrench is perpendicular to the locking frame, and one end of the control wrench abuts against the port of the housing.

[0010] Preferably, a retaining ring is provided inside the port of the housing, the retaining ring is located between the locking frame and the housing, and the retaining ring abuts against one end of the first elastic member.

[0011] Preferably, the locking rod has a connecting groove and a guide at each end. The connecting groove is used to fix the locking rod to the body. The guide is located at the end close to the locking groove. The diameter of the guide gradually decreases towards the end away from the locking groove. The guide is used to guide the locking frame to extend into the inner cavity of the locking frame.

[0012] Preferably, the inner wall of the locking groove on the side near the guide is inclined toward the guide, and the inner wall of the locking groove is used to guide the sliding of the locking ball.

[0013] Preferably, the locking frame is provided with an indicator rod that abuts against the guide portion. A protruding ring is provided on the outer periphery of one end of the indicator rod near the guide portion. A second elastic element is held between the top surface of the locking frame and the protruding ring. The indicator rod can extend out of the top surface of the locking frame.

[0014] Preferably, the indicator rod is provided with a sliding groove along its axial direction, and a rotating shaft is vertically inserted through the side wall of the locking frame. The rotating shaft passes through the control wrench and the indicator rod, and passes through the sliding groove. The rotating shaft connects the control wrench and the locking frame, and the rotating shaft can slide inside the indicator rod.

[0015] Preferably, a relief groove is provided at the location corresponding to the inner cavity of the housing for the control wrench, and a limiting block is provided on the two inner walls opposite to the relief groove. The limiting block is used to restrict the degree of freedom of the control wrench along the axial direction of the rotating shaft.

[0016] Preferably, a fixing member is provided between the retaining ring and the housing.

[0017] Preferably, the control wrench includes a support portion and a grip portion located on both sides of the pivot, the length of the support portion is shorter than the length of the grip portion, and the side wall of the support portion opposite to the housing port is a curved surface.

[0018] Preferably, the housing is provided with a limiting plate for supporting the gripping part; the control wrench is fitted into the reserved groove of the wing.

[0019] Compared to the aforementioned background technology, the UAV fuselage and wing fixing connection device provided by this utility model includes: a housing, a locking frame provided in the inner cavity of the housing, a ring platform extending from one end of the locking frame, a first elastic member provided on the outer periphery of the locking frame, the two ends of the first elastic member respectively abutting against the end face of the ring platform and the port of the housing, the diameter of the ring platform gradually narrows towards the end away from the locking frame, after the locking frame is placed into the housing, the side wall of the ring platform fits against the inner wall of the housing, that is, the inner wall of the housing also has a section of conical surface, a locking rod is provided in the housing, the locking rod passes through the ring platform and the locking frame in sequence, a locking groove is provided on the side wall of one end of the locking rod, a plurality of locking beads are provided on the side wall of the ring platform, the diameter of the locking beads is greater than the wall thickness of the ring platform, that is, the locking beads partially extend into the inner cavity of the locking frame, a control wrench is rotatably provided at the end of the locking frame away from the ring platform, the rotation axis of the control wrench is perpendicular to the locking axis, when connecting the wing and the fuselage through this application, the locking rod is connected to the fuselage, and the control wrench is fixed to the... On the wing, the locking lever is inserted from the end of the housing away from the control wrench. The side wall of the locking lever is in contact with the inner wall of the locking frame. When the locking lever abuts against the locking ball, the locking lever pushes against the locking ball, and the locking ball causes the ring platform to slide towards the side closer to the control wrench. The diameter of the inner wall of the housing that abuts against the locking ball gradually increases. The pressure applied by the locking lever to the locking ball causes the locking ball to move towards the side closer to the housing. The part of the locking ball that extends into the inner cavity of the locking frame is removed. At this time, the locking ball can roll along the side wall of the locking frame and fall into the locking groove. The locking lever is released, and the first elastic element pushes the ring platform to abut against the conical surface of the inner wall of the housing again. The locking ball is clamped between the housing and the locking groove, and the locking ball fixes the locking lever in the locking frame. When it is necessary to disassemble the fuselage and the wing, the control wrench is pulled to the side away from the locking lever. Using the end of the control wrench that abuts against the housing port as a fulcrum, the control wrench lifts the locking frame connected to it. The diameter of the inner wall of the housing that abuts against the locking ball increases, and the locking ball can be pushed out of the locking groove. The locking lever can be removed from the housing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a structural diagram of the UAV fuselage and wing fixing connection device provided in an embodiment of the present utility model;

[0022] Figure 2 A cross-sectional view of the unmanned aerial vehicle fuselage and wing fixing connection device provided in this embodiment of the utility model;

[0023] Figure 3 An exploded view of the unmanned aerial vehicle fuselage and wing fixing connection device provided in an embodiment of this utility model.

[0024] The components are as follows: 1-housing; 2-locking frame; 3-ring platform; 4-first elastic element; 5-locking ball; 6-locking rod; 61-locking groove; 62-guide part; 63-connecting groove; 7-control wrench; 71-yield groove; 72-support part; 73-holding part; 8-retaining ring; 9-fixing element; 10-indicator rod; 101-sliding groove; 11-second elastic element; 12-rotating shaft; 13-limiting plate; 14-limiting block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] This application provides a fixed connection device for the fuselage and wings of a UAV. Please refer to the appendix of the specification. Figure 1 To be continued Figure 3 The UAV fuselage and wing fixing connection device includes a housing 1. A locking frame 2 is fitted inside the housing 1. One end of the locking frame 2 has an annular platform 3 on its outer periphery, and an annular step surface is formed at the connection between the annular platform 3 and the locking frame 2. The diameter of the annular platform 3 gradually decreases towards the side away from the locking frame 2. After the locking frame 2 is placed inside the housing 1, the side wall of the annular platform 3 can fit against the inner wall of the housing 1. It should be noted that the inner side wall of the housing 1 can be divided into a straight section corresponding to the locking frame 2 and a conical section that fits against the annular platform 3, and the diameter of the straight section is equal to the maximum diameter of the conical section. A first elastic element 4 is provided on the outer periphery of the locking frame 2. The two ends of the first elastic element 4 abut against the annular step surface and the port of the housing 1, respectively. Furthermore, the housing... The body 1 contains a locking rod 6, which passes through the inner cavity of the ring platform 3 and the locking frame 2. The locking rod 6 fits against the inner wall of the ring platform 3 and the locking frame 2. A locking groove 61 is provided at one end of the locking rod 6. Several locking ball holes are provided on the side wall of the ring platform 3, and a locking ball 5 is provided in each locking ball hole. Preferably, the diameter of the locking ball 5 is slightly larger than the length of the locking ball hole, that is, a part of the locking ball 5 can extend into the inner cavity or outer periphery of the ring platform 3. The diameters of the two ends of the locking ball hole are slightly smaller than the diameter of the locking ball 5 to prevent the locking ball 5 from falling out of the locking ball hole. In addition, a control wrench 7 is rotatably connected to the end of the locking frame 2 away from the ring platform 3. The control wrench 7 can rotate in a direction perpendicular to the axis of the locking frame 2, and one end of the control wrench 7 abuts against the end face of the port of the housing 1.

[0028] When using this application to connect the fuselage and wing, the locking rod 6 is connected to the fuselage, the control wrench 7 is engaged with the reserved slot on the wing, and the end of the locking rod 6 with the locking groove 61 is inserted into the ring platform 3. The first elastic element 4 pushes against the annular step surface, so that the ring platform 3 is in contact with the inner wall of the housing 1. The locking ball 5 on the side wall of the ring platform 3 extends partially into the inner cavity of the ring platform 3. The locking rod 6 pushes against the locking ball 5, causing the ring platform 3 to move towards the side closer to the control wrench 7, that is, the ring platform 3 moves towards the side where the size of the conical section of the inner wall of the housing 1 gradually increases. A gap gradually forms between the side wall of the ring platform 3 and the side wall of the inner hole, and the gap increases with the movement of the ring platform 3. The locking rod 6 pushes the locking ball 5 to move towards the outer periphery of the ring platform 3. When part of the locking ball 5 in the inner cavity of the ring platform 3 has completely moved to the outer periphery of the ring platform 3, the locking ball 5 releases its contact with the locking rod 6. During the process of the locking rod 6 pushing the ring platform 3, the first elastic element 4 is compressed. At this time, the ring platform 3 loses the support force of the locking rod 6, and the first elastic element 4 pushes... The ring platform 3 slides away from the control wrench 7, and the locking ball 5 falls into the locking groove 61. The first elastic element 4 makes the side wall of the ring platform 3 fit against the conical section of the inner wall of the housing 1. At this time, the locking ball 5 is clamped between the locking groove 61 and the inner wall of the housing 1, holding the locking rod 6 inside the ring platform 3. If the locking rod 6 is to be pulled out of the ring platform 3, pressure is needed to deform the locking rod 6 and reduce its diameter so that the locking ball 5 can slide out of the sliding groove 101 and contact the locking rod 6. Only then can it be separated from the ring platform 3. The operator can flip the control wrench 7 to the side away from the locking rod 6, and use the end of the control wrench 7 that abuts against the port of the housing 1 as a fulcrum to lift the locking frame 2 connected to the control wrench 7. In addition, the position of the locking rod 6 connected to the wing is fixed. The locking rod 6 and the ring platform 3 move to opposite sides, and the locking ball 5 disengages from the locking groove 61. The control wrench 7 lifts the locking frame 2 through the force-saving lever, making the unlocking process of the fuselage and wing more convenient.

[0029] Preferably, an indicator rod 10 is also fitted inside the locking frame 2. The diameter of the indicator rod 10 is smaller than the inner diameter of the locking frame 2. The indicator rod 10 abuts against the end of the locking rod 6. A convex ring is provided on the outer periphery of the indicator rod 10 near the end of the locking rod 6. A second elastic element 11 is provided on the outer periphery of the indicator rod 10. The two ends of the second elastic element 11 abut against the convex ring and the upper end face of the locking frame 2, respectively. It should be noted that a through hole with the same diameter as the indicator rod 10 is provided on the upper end face of the locking frame 2. When the locking rod 6 extends into the locking frame 2, it pushes against the indicator rod 10, and the convex ring compresses the second elastic element. 11. After locking the locking rod 6 and the ring platform 3, the locking rod 6 pushes the indicator rod 10 out of the through hole. The indicator rod 10 forms a protrusion on the upper end face of the locking frame 2, reminding the operator that the locking rod 6 has been fixed. When the operator disassembles the fuselage and wing, the locking rod 6 moves away from the control wrench 7. The second elastic element 11 pushes the indicator rod 10 to move in the same direction as the locking rod 6. The operator can observe whether the indicator rod 10 has completely fallen back into the locking frame 2. When no protrusion appears on the upper end face of the locking frame 2, it means that the locking rod 6 has been completely separated from the ring platform 3 and the locking rod 6 can be pulled out.

[0030] Preferably, a retaining ring 8 is fitted inside the port of the housing 1, and a fixing member 9 is provided through the side wall of the housing 1. The fixing member 9 can be a round-headed screw. The fixing member 9 fixes the position of the retaining ring 8, and the end of the first elastic member 4 near the port of the housing 1 abuts against the retaining ring 8.

[0031] Please refer to the instruction manual appendix. Figure 2 The control wrench 7 is provided with a relief groove 71 at the corresponding position of the inner cavity of the housing 1. The locking frame 2 is located in the relief groove 71. A sliding groove 101 is provided on the side wall of the indicator rod 10. A rotating shaft 12 is provided vertically on the side wall of the locking member. The rotating shaft 12 also passes through the control wrench 7 and the sliding groove 101. The sliding groove 101 extends along the axial direction of the indicator rod 10 to prevent the rotating shaft 12, which passes through the indicator rod 10, from restricting the sliding of the indicator rod 10. Limiting blocks 14 are provided on the two inner side walls of the relief groove 71 and the locking frame 2. The limiting blocks 14 abut against the side wall of the locking frame 2 to prevent relative sliding between the control wrench 7 and the locking frame 2 along the axial direction of the rotating shaft 12.

[0032] Furthermore, the control wrench 7 can specifically be a support part 72 and a handle part 73. The support part 72 and the handle part 73 are respectively located at both ends of the rotating shaft 12, and the length of the handle part 73 is greater than the length of the support part 72. The support part 72 abuts against the end of the housing 1. The side wall of the support part 72 that abuts against the port of the housing 1 is specifically a curved surface. When the operator moves the handle part 73, the curved surface makes the rotation of the support part 72 more gentle. In addition, according to the lever principle, the distance from the rotating shaft 12 connected to the locking frame 2 to the fulcrum of the support part 72 is less than the distance from the end of the handle part 73 to the fulcrum of the support part 72. Therefore, the operator can lift the locking frame 2 with only a small force.

[0033] Preferably, a limiting plate 13 perpendicular to the axis of the housing 1 is provided on the outer side of the port of the housing 1. The limiting plate 13 is used to place the control wrench 7 in the locked state. The end face of the limiting plate 13 fits against the grip part 73, making the setting state of the control wrench 7 more stable and preventing external force from turning the control wrench 7 and unlocking the control wrench 7.

[0034] Please refer to the instruction manual appendix. Figure 3The locking rod 6 has a connecting groove 63 and a guide part 62 at both ends. The guide part 62 is located on the side closer to the locking groove 61. The connecting groove 63 extends into the machine body with the locking rod 6 and engages with the locking component inside the machine body to prevent the locking rod 6 from rotating inside the machine body. The size of the guide part 62 gradually decreases towards the side away from the connecting groove 63, so that the end of the locking rod 6 has a guiding slope. During the process of extending the locking rod 6 into the ring platform 3, the guide part 62 gradually increases the degree of contact with the locking ball 5 until the locking ball 5 falls. The locking bar 6 is inserted into the locking groove 61, making it easier and smoother to insert. In addition, the side wall of the locking groove 61 near the guide part 62 is inclined to one side of the guide part 62 and connects with the side wall of the guide part 62. When the locking ball 5 falls into the locking groove 61, the side wall of the locking groove 61 guides the locking ball 5 to roll to the bottom of the locking groove 61. Similarly, when performing the unlocking operation, the side wall of the locking groove 61 can guide the locking ball 5, making it easier for the locking ball 5 to move out of the locking groove 61.

[0035] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0036] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A device for fixing and connecting the fuselage and wings of a drone, characterized in that, include: A housing (1) has a locking frame (2) in its inner cavity. A ring platform (3) is fitted around the outer periphery of the locking frame (2), and the ring platform (3) is located at one end of the locking frame (2) in the length direction. Along the length direction of the locking frame (2), the side wall of the ring platform (3) tapers, and the tapered end of the side wall of the ring platform (3) is located away from the locking frame (2). The side wall of the ring platform (3) fits against the inner cavity of the housing (1). A first elastic element (4) is fitted around the locking frame (2), and the first elastic element (4) is clamped between the end face of the ring platform (3) and the port of the housing (1). Locking rod (6), the locking rod (6) passes through the inside of the locking frame (2), the side wall of the locking rod (6) is in contact with the inner wall of the locking frame (2), and one end of the locking rod (6) is provided with a locking groove (61). A number of locking beads (5) are evenly distributed on the side wall of the ring platform (3). When the locking rod (6) is in the locked state, each of the locking beads (5) abuts against the locking groove (61) and the inner wall of the housing (1). A control wrench (7) is rotatably connected to one end of the locking frame (2) away from the ring platform (3). The rotation axis of the control wrench (7) is perpendicular to the locking frame (2). One end of the control wrench (7) abuts against the port of the housing (1).

2. The UAV fuselage and wing fixing connection device according to claim 1, characterized in that, A retaining ring (8) is provided in the port of the housing (1). The retaining ring (8) is located between the locking frame (2) and the housing (1). The retaining ring (8) abuts against one end of the first elastic member (4).

3. The UAV fuselage and wing fixing connection device according to claim 2, characterized in that, The locking rod (6) has a connecting groove (63) and a guide part (62) at both ends. The connecting groove (63) is used to fix the locking rod (6) to the body. The guide part (62) is located at one end close to the locking groove (61). The diameter of the guide part (62) gradually decreases towards the end away from the locking groove (61). The guide part (62) is used to guide the locking rod (6) to extend into the inner cavity of the locking frame (2).

4. The UAV fuselage and wing fixing connection device according to claim 3, characterized in that, The inner wall of the locking groove (61) near the guide (62) is inclined toward the guide (62), and the inner wall of the locking groove (61) is used to guide the locking ball (5) to slide.

5. The UAV fuselage and wing fixing connection device according to claim 3, characterized in that, The locking frame (2) is provided with an indicator rod (10), which abuts against the guide part (62). A protruding ring is provided on the outer periphery of one end of the indicator rod (10) near the guide part (62). A second elastic element (11) is held between the top surface of the locking frame (2) and the protruding ring. The indicator rod (10) can extend out of the top surface of the locking frame (2).

6. The UAV fuselage and wing fixing connection device according to claim 5, characterized in that, The indicator rod (10) has a sliding groove (101) along its axial direction. A rotating shaft (12) is vertically inserted through the side wall of the locking frame (2). The rotating shaft (12) passes through the control wrench (7) and the indicator rod (10), and passes through the sliding groove (101). The rotating shaft (12) connects the control wrench (7) and the locking frame (2). The rotating shaft (12) can slide within the indicator rod (10).

7. The UAV fuselage and wing fixing connection device according to claim 6, characterized in that, The control wrench (7) is provided with a relief groove (71) corresponding to the inner cavity of the housing (1). Limiting blocks (14) are provided on the inner walls of the two sides opposite to the relief groove (71). The limiting blocks (14) are used to restrict the degree of freedom of the control wrench (7) along the axis of the rotating shaft (12).

8. The UAV fuselage and wing fixing connection device according to claim 2, characterized in that, A fastener (9) is inserted between the retaining ring (8) and the housing (1).

9. The UAV fuselage and wing fixing connection device according to claim 6, characterized in that, The control wrench (7) includes a support part (72) and a grip part (73) located on both sides of the rotating shaft (12). The length of the support part (72) is less than the length of the grip part (73). The side wall of the support part (72) opposite to the port of the housing (1) is a curved surface.

10. The UAV fuselage and wing fixing connection device according to claim 9, characterized in that, The housing (1) is provided with a limiting plate (13) for supporting the gripping part (73); the control wrench (7) is fitted into the reserved slot of the wing.

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