Quick connecting device for small and medium-sized unmanned aerial vehicles

Abstract

The utility model discloses a quick connecting device for small and medium-sized unmanned aerial vehicles, which relates to the technical field of unmanned aerial vehicles and comprises a mounting seat, a locking handle, a connecting rod, a bolt, a bolt sliding seat and a lock hook, the upper surface of the locking handle is matched with the surface curvature of the unmanned aerial vehicle, and the locking handle is hinged with the mounting seat through a handle rotating shaft. One end of the connecting rod is hinged with the locking handle through a connecting rod rotating shaft, and the other end is hinged with the bolt through a bolt rotating shaft; the bolt sliding seat and the mounting seat are connected and matched to define a bolt sliding way, the bolt is arranged in the bolt sliding way in a sliding mode, and the bolt sliding way is provided with a bolt limiting piece used for being clamped and matched with the bolt; the mounting seat is provided with a lock hook mounting hole for mounting the lock hook, and the lock hook is provided with a bolt hole which is coaxial with the bolt slideway; when the bolt penetrates through the bolt hole and is clamped with the bolt limiting piece, the bolt is locked in place, and the axis of the connecting rod rotating shaft is lower than the plane where the axes of the handle rotating shaft and the bolt rotating shaft are located. The device is convenient to disassemble and assemble and has low aerodynamic performance on wings.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a quick connection device for small and medium-sized UAVs. Background Technology

[0002] To facilitate transportation, existing small and medium-sized drones typically adopt a segmented design, that is, the fuselage and wings are manufactured, packed and transported separately, and the modules are connected and locked after transportation.

[0003] Currently, the wings and fuselage of small and medium-sized drones are mostly connected by fastening screws, which makes it difficult to quickly assemble and disassemble them and requires additional tools, increasing the logistical support difficulty for drone field operations. Furthermore, using screws to connect the wings and fuselage requires drilling holes on the upper surface of the wings, and the screw holes on the upper surface of the wings will still affect the aerodynamic performance of the wing surface after assembly.

[0004] In summary, how to achieve rapid connection of UAV modules and reduce the impact of module connection on wing aerodynamic performance is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a quick connection device for small and medium-sized UAVs, which is easy to assemble and disassemble, requires no additional tools, reduces the difficulty and cost of logistical support, and the locking handle is installed in a conformal manner, eliminating the impact of drilling on the wing surface on the wing's aerodynamic performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-connect device for small and medium-sized unmanned aerial vehicles (UAVs) includes a mounting base, a locking handle, a connecting rod, a pin, a pin slide, and a locking hook. The mounting base and the locking hook are used to connect two mechanical structures to be connected. The upper surface of the locking handle is adapted to the surface curvature of the UAV. The locking handle is hinged to the mounting base via a handle pivot. One end of the connecting rod is hinged to the locking handle via a connecting rod pivot, and the other end of the connecting rod is hinged to the pin via a pin pivot.

[0008] The pin slide is connected to the mounting base so that the pin slide and the mounting base cooperate to form a pin slide channel. The pin is slidably disposed in the pin slide channel, and the pin slide channel is provided with a pin limiting member for engaging with the pin.

[0009] The mounting base is provided with a lock hook mounting hole for mounting the lock hook, and the lock hook is provided with a pin hole coaxially arranged with the pin slide.

[0010] When the pin passes through the pin hole and engages with the pin limiting member, the pin is locked in place, and the axis of the connecting rod shaft is lower than the plane containing the axes of the handle shaft and the pin shaft.

[0011] Preferably, the locking hook is inserted into the pin slide so that the pin hole is located between two adjacent pin slides in the pin sliding direction.

[0012] Preferably, the pin slide includes a first slide portion, a second slide portion, and a connecting plate for connecting with the mounting base. The first slide portion and the second slide portion are disposed on the connecting plate, and the locking hook is engaged in the gap between the first slide portion and the second slide portion.

[0013] Preferably, the top surface of the mounting base is provided with a limiting boss, which is used to cooperate with the inner surface of the pin slide to form the pin slide.

[0014] Preferably, the pin limiting member includes a ball plunger, one end of which is mounted on the top surface of the mounting base, and the other end of which is used to engage with the limiting groove at the bottom of the pin.

[0015] Preferably, it further includes a tension spring, one end of which is hinged to the connecting rod, and the other end of which is hinged to the side of the mounting base or the pin slide.

[0016] Preferably, one end of the tension spring is rotatably connected to the connecting rod shaft, and the other end of the tension spring is hinged to the side of the pin slide opposite to the end of the connecting rod.

[0017] Preferably, the end face of the pin slide relative to the end away from the connecting rod is provided with an adjusting screw, the inner end face of the adjusting screw abuts against the end of the pin relative to the end away from the connecting rod, and the adjusting screw is used to adjust the position of the pin shaft in the pin sliding direction, so as to adjust the center distance between the pin shaft and the handle shaft.

[0018] Preferably, the axis of the adjusting screw is parallel to the sliding direction of the pin, and the axis of the adjusting screw is located in the vertical symmetry plane of the pin perpendicular to the mounting base.

[0019] Preferably, the mounting base is provided with a first mounting hole for connecting to the movable end, and the base of the locking hook is provided with a second mounting hole for connecting to the fixed end.

[0020] The quick connection device for small and medium-sized UAVs provided by this utility model can lock and unlock the locking hook, pin and mounting base by rotating the locking handle, thereby realizing the connection and separation of the two mechanical structures to be connected. Compared with the existing drilling bolt installation, it is easy to install and disassemble, and no additional tools are required for installation and disassembly, which significantly reduces the difficulty and cost of logistical support.

[0021] Meanwhile, the upper surface of the locking handle is adapted to the curvature of the UAV surface. By conforming the locking handle to the shape, the impact of drilling holes on the wing surface on the wing's aerodynamic performance is eliminated. Attached Figure Description

[0022] 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.

[0023] Figure 1 A schematic diagram of a specific embodiment of the quick connection device for small and medium-sized unmanned aerial vehicles provided by this utility model;

[0024] Figure 2 for Figure 1 Front view diagram;

[0025] Figure 3 for Figure 1 An explosion diagram;

[0026] Figure 4 for Figure 1 A sectional view in the main view direction.

[0027] Figures 1-4 middle:

[0028] 1-Mounting base; 2-Handle pivot; 3-Locking handle; 4-Connecting rod pivot; 5-Connecting rod; 6-Pin pivot; 7-Pin; 701-First limit groove; 702-Second limit groove; 8-Pin slide; 9-Locking hook; 10-Tension spring; 11-Tension spring screw; 12-Ball plunger; 13-Adjusting set screw; 14-Slide screw. Detailed Implementation

[0029] 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.

[0030] The core of this invention is to provide a quick connection device for small and medium-sized UAVs, which is easy to assemble and disassemble, requires no additional tools, reduces logistical support difficulty and cost, and the locking handle is installed in a conformal manner, eliminating the impact of drilling holes on the wing surface on the wing's aerodynamic performance.

[0031] The quick connection device for small and medium-sized UAVs provided by this utility model includes a mounting base 1, a locking handle 3, a connecting rod 5, a pin 7, a pin slide 8, and a locking hook 9. The mounting base 1 and the locking hook 9 are used to connect the two mechanical structures to be connected. The upper surface of the locking handle 3 is adapted to the surface curvature of the UAV. The locking handle 3 is hinged to the mounting base 1 through the handle pivot 2. One end of the connecting rod 5 is hinged to the locking handle 3 through the connecting rod pivot 4, and the other end of the connecting rod 5 is hinged to the pin 7 through the pin pivot 6.

[0032] The pin slide 8 is connected to the mounting base 1 so that the pin slide 8 and the mounting base 1 cooperate to form a pin slide. The pin 7 is slidably disposed in the pin slide, and the pin slide is provided with a pin limiting member for engaging with the pin 7.

[0033] Mounting base 1 is provided with a lock hook mounting hole for mounting the lock hook 9, and the lock hook 9 is provided with a pin hole coaxially arranged with the pin slide.

[0034] When the pin 7 passes through the pin hole and the pin 7 is engaged with the pin limiting piece, the pin 7 is locked in place, and the axis of the connecting rod shaft 4 is lower than the plane containing the axes of the handle shaft 2 and the pin shaft 6.

[0035] The mounting base 1 and the locking hook 9 are respectively connected to the two mechanical structures to be connected. Based on the motion state of the two mechanical structures during assembly, the stationary mechanical structure is the fixed end and the moving mechanical structure is the movable end. The mounting base 1 is connected to the movable end and the locking hook 9 is connected to the fixed end.

[0036] Please refer to Figure 1 The mounting base 1 is provided with a first mounting hole for connecting to the movable end, and the base of the locking hook 9 is provided with a second mounting hole for connecting to the fixed end. The first mounting hole and the second mounting hole can be specifically set as threaded holes, pin holes, etc., and their specific types, structures and dimensions are determined by verification calculation based on the design connection strength requirements of the movable end and the fixed end in actual production.

[0037] The locking handle 3 serves as the operating part of the quick-connect device. It is hinged to the mounting base 1 via the handle pivot 2. The upper surface of the locking handle 3 is continuously set with the surface of the UAV so that the UAV surface, such as the upper wing surface, remains continuous at the quick-connect device, thereby ensuring the surface aerodynamic performance of the UAV surface.

[0038] One end of the connecting rod 5 is hinged to the locking handle 3 via the connecting rod pivot 4, and the other end is hinged to the pin 7 that is slidably provided in the pin slide via the pin pivot 6, which is used to convert the rotation of the locking handle 3 into the sliding of the pin 7 in the pin slide.

[0039] To prevent the pin 7 from sliding within the pin slide after locking, the pin slide is provided with a pin limiting member for engaging with the pin 7. The pin limiting member can be located on the top surface of the mounting base 1 or on the inner surface of the pin slide 8, as long as it can effectively limit the pin 7.

[0040] When it is necessary to lock the fixed end and the movable end, first connect the mounting base 1 to the movable end and the locking hook 9 to the fixed end, and then control the locking handle 3 along... Figure 4 Rotate the lever clockwise to make the pin 7 slide along the pin slide towards the end closer to the handle shaft 2, so that the pin 7 makes way for the locking hook mounting hole of the mounting base 1; then move the mounting base 1 to make the locking hook 9 fit into the locking hook mounting hole, and complete the alignment of the moving end and the fixed end; finally, control the locking handle 3 to rotate clockwise. Figure 4 Rotate counterclockwise to make the pin 7 slide along the pin slide to the end away from the handle shaft 2 until the pin 7 is engaged with the pin limit. At this time, the pin 7 passes through the pin hole, the upper surface of the handle shaft 2 is flush with the surface of the drone, and the locking of the quick locking device is completed.

[0041] To prevent the quick-connect device from unlocking due to flight vibrations within the operating range, the axis of the connecting rod shaft 4 is set lower than the plane containing the axes of the handle shaft 2 and the pin shaft 6. Therefore, during the unlocking process, the center distance between the handle shaft 2 and the pin shaft 6 first increases and then decreases. When the center distance is at its maximum, a dead point is formed in the connecting rod sliding pair. Unlocking is completed by relying on the slight deformation of the locking handle 3, connecting rod 5 and pin 7. Flight vibrations within the operating range cannot overcome the stress caused by the above deformation, thus preventing the quick-connect device from unlocking unexpectedly.

[0042] In this embodiment, the quick connection device can lock and unlock the locking hook 9, the pin 7, and the mounting base 1 by rotating the locking handle 3, thereby realizing the connection and separation of the two mechanical structures to be connected. Compared with the existing drilling bolt installation, it is convenient to install and disassemble, and no additional tools are required for installation and disassembly, which significantly reduces the difficulty and cost of logistical support.

[0043] Meanwhile, the upper surface of the locking handle 3 is adapted to the curvature of the UAV surface. By conforming the locking handle 3 to the shape, the impact of drilling on the wing surface on the wing's aerodynamic performance is eliminated.

[0044] Based on the above embodiments, in order to improve the installation stability and reliability of the locking hook 9, please refer to... Figure 4 The locking hook 9 can be inserted into the pin slide 8 so that the pin hole is located between two adjacent pin slides in the pin sliding direction.

[0045] In this embodiment, the locking hook 9 is limited in the sliding direction of the pin by the pin slides 8 on both sides, so as to prevent it from moving due to aircraft vibration and other factors within the working conditions, thereby affecting the installation stability and reliability of the locking hook 9 and the mounting base 1.

[0046] Preferably, in order to facilitate the disassembly of the pin slide 8, the pin slide 8 can be provided to include a first slide part, a second slide part, and a connecting plate for connecting with the mounting base. The first slide part and the second slide part are disposed on the connecting plate, and the locking hook 9 is engaged in the gap between the first slide part and the second slide part.

[0047] Compared to the first and second slides being independently mounted on the mounting base 1, the pin slide 8 requires fewer connecting parts such as slide screws 14, resulting in a simpler connection structure, easier assembly and disassembly, and less installation and operating space for the connecting parts, which helps to reduce the size of the quick-connect device.

[0048] Preferably, in order to increase the contact area between the locking hook 9 and the pin slide 8, a limiting boss can be provided on the top surface of the mounting base 1. The limiting boss is used to cooperate with the inner surface of the pin slide 8 to form a pin slide.

[0049] At this time, the pin hole of the lock hook 9 is located in the upper middle part of the lock hook 9. Compared with the lower edge of the pin hole of the lock hook 9 being flush with the top surface of the mounting base 1, the contact area between the lock hook 9 and the pin slide 8 is larger, which is conducive to improving the installation stability and reliability of the lock hook 9.

[0050] Based on the above embodiments, the structure of the pin limiting member is further defined. The pin limiting member includes a ball plunger 12. One end of the ball plunger 12 is installed on the top surface of the mounting base 1, and the other end of the ball plunger 12 is used to engage with the limiting groove at the bottom of the pin 7.

[0051] The ball plunger 12 can be locked in the limiting component mounting hole on the top surface of the mounting base 1, or it can be installed in the limiting component mounting hole by means of threaded connection; the specific structure, shape and size of the ball plunger 12 are determined according to the actual production needs and with reference to the existing technology, and will not be described in detail here.

[0052] Please refer to Figure 4To prevent the pin 7 from shifting within the pin slide and blocking the locking hook mounting hole again during the alignment of the moving and fixed ends, the bottom of the pin 7 can be provided with two limiting grooves: a first limiting groove 701 and a second limiting groove 702. When the ball plunger 12 engages with the first limiting groove 701, the pin 7 clears the locking hook mounting hole. When the ball plunger 12 engages with the second limiting groove 702, the pin 7 passes through the pin hole of the locking hook 9. At this time, the pin 7 and the quick-connect device are in a locked state.

[0053] Of course, the ball plunger 12 can also be replaced with a spring ball or other structure with similar function.

[0054] Based on the above embodiments, the quick connection device also includes a tension spring 10, one end of which is hinged to the connecting rod 5, and the other end of which is hinged to the side of the mounting base 1 or the pin slide 8.

[0055] In this embodiment, the tension spring 10 not only prevents the normal component of the thrust of the connecting rod 5 on the pin 7 (the component of the thrust perpendicular to the sliding direction) from causing the pin 7 to jam with the pin slide and fail to lock, but also provides a tension force in the opposite direction when the pin 7 moves along the pin slide towards the end closer to the handle shaft 2 to unlock, thus preventing the quick-connect device from unlocking due to vibration or other reasons in flight, and ensuring the stability and reliability of the connection structure.

[0056] Please refer to Figure 3 One end of the tension spring 10 is rotatably connected to the connecting rod shaft 4, and the other end of the tension spring 10 is hinged to the side of the pin slide 8 that is away from the connecting rod 5 by a tension spring screw 11 or a tension spring shaft.

[0057] Based on the above embodiments, in order to facilitate the adjustment of the locking force of the quick-connect device, the end face of the pin slide 8 that is away from the connecting rod 5 is provided with an adjusting screw 13. The inner end face of the adjusting screw 13 abuts against the end of the pin 7 that is away from the connecting rod 5. The adjusting screw 13 is used to adjust the position of the pin shaft 6 of the pin 7 in the pin sliding direction, so as to adjust the center distance between the pin shaft 6 and the handle shaft 2, thereby adjusting the locking force of the quick-connect device and meeting the installation requirements of different parts.

[0058] Preferably, the axis of the adjusting screw 13 can be set to be parallel to the sliding direction of the pin, and the axis of the adjusting screw 13 is located in the vertical symmetry plane of the pin 7 perpendicular to the mounting base 1, such as... Figure 4 As shown, this is to prevent the force exerted by the adjusting screw 13 on the pin 7 from deviating from the sliding direction of the pin, and to make the end of the pin 7 subject to relatively uniform force.

[0059] It should be noted that the first and second mounting holes mentioned in this application, as well as the first and second limiting grooves 701 and 702, are only used to distinguish different positions and do not limit the order.

[0060] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0061] The above provides a detailed description of the quick connection device for small and medium-sized unmanned aerial vehicles (UAVs) provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A quick connection device for small and medium-sized unmanned aerial vehicles (UAVs), characterized in that, The system includes a mounting base (1), a locking handle (3), a connecting rod (5), a pin (7), a pin slide (8), and a locking hook (9). The mounting base (1) and the locking hook (9) are used to connect the two mechanical structures to be connected. The upper surface of the locking handle (3) is adapted to the surface curvature of the UAV. The locking handle (3) is hinged to the mounting base (1) through a handle pivot (2). One end of the connecting rod (5) is hinged to the locking handle (3) through a connecting rod pivot (4), and the other end of the connecting rod (5) is hinged to the pin (7) through a pin pivot (6). The pin slide (8) is connected to the mounting base (1) so that the pin slide (8) and the mounting base (1) cooperate to form a pin slide. The pin (7) is slidably disposed in the pin slide, and the pin slide is provided with a pin limiting member for engaging with the pin (7). The mounting base (1) is provided with a lock hook mounting hole for mounting the lock hook (9), and the lock hook (9) is provided with a pin hole coaxially arranged with the pin slide; When the pin (7) passes through the pin hole and the pin (7) engages with the pin limiting member, the pin (7) is locked in place, and the axis of the connecting rod shaft (4) is lower than the plane containing the axes of the handle shaft (2) and the pin shaft (6).

2. The quick connection device for small and medium-sized UAVs according to claim 1, characterized in that, The locking hook (9) is inserted into the pin slide (8) so that the pin hole is located between two adjacent pin slides in the pin sliding direction.

3. The quick connection device for small and medium-sized UAVs according to claim 2, characterized in that, The pin slide (8) includes a first slide part, a second slide part and a connecting plate for connecting with the mounting base (1). The first slide part and the second slide part are disposed on the connecting plate, and the locking hook (9) is engaged in the gap between the first slide part and the second slide part.

4. The quick connection device for small and medium-sized UAVs according to claim 1, characterized in that, The top surface of the mounting base (1) is provided with a limiting boss, which is used to cooperate with the inner surface of the pin slide (8) to form the pin slide.

5. The quick connection device for small and medium-sized UAVs according to claim 1, characterized in that, The pin limiting component includes a ball plunger (12), one end of which is mounted on the top surface of the mounting base (1), and the other end of which is used to engage with the limiting groove at the bottom of the pin (7).

6. The quick connection device for small and medium-sized unmanned aerial vehicles according to any one of claims 1-5, characterized in that, It also includes a tension spring (10), one end of which is hinged to the connecting rod (5), and the other end of which is hinged to the side of the mounting base (1) or the pin slide (8).

7. The quick connection device for small and medium-sized unmanned aerial vehicles according to claim 6, characterized in that, One end of the tension spring (10) is rotatably connected to the connecting rod shaft (4), and the other end of the tension spring (10) is hinged to the side of the pin slide (8) opposite to the end of the connecting rod (5).

8. The quick connection device for small and medium-sized unmanned aerial vehicles according to any one of claims 1-5, characterized in that, The end face of the pin slide (8) that is away from the connecting rod (5) is provided with an adjusting screw (13). The inner end face of the adjusting screw (13) abuts against the end of the pin (7) that is away from the connecting rod (5). The adjusting screw (13) is used to adjust the position of the pin shaft (6) in the pin sliding direction, so as to adjust the center distance between the pin shaft (6) and the handle shaft (2).

9. The quick connection device for small and medium-sized unmanned aerial vehicles according to claim 8, characterized in that, The axis of the adjusting screw (13) is parallel to the sliding direction of the pin, and the axis of the adjusting screw (13) is located in the vertical symmetry plane of the pin (7) perpendicular to the mounting base (1).

10. The quick connection device for small and medium-sized unmanned aerial vehicles according to any one of claims 1-5, characterized in that, The mounting base (1) is provided with a first mounting hole for connecting to the movable end, and the base of the locking hook (9) is provided with a second mounting hole for connecting to the fixed end.

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