Vehicle-mounted unmanned aerial vehicle cantilever passive deployment mechanism and deployment method thereof

Abstract

The application discloses a kind of vehicle-mounted unmanned plane cantilever passive deployment mechanism and its deployment method, including fuselage and two drive mechanisms, guiding groove is arranged on fuselage, two ends of fuselage are connected with two cantilevers respectively, and two cantilevers located in same end are hinged by pin shaft sleeve, two pin shaft sleeves are slidably connected with guiding groove, and can be driven by two drive mechanisms, move along guiding groove in opposite direction and opposite direction, drive mechanism includes telescopic rod, drive head and deployment assembly, deployment assembly is connected with pin shaft sleeve, telescopic rod is connected with stopover, drive head is connected with telescopic rod, when telescopic rod is lengthened, drive head can be moved to connect with deployment assembly;When two drive heads are connected with two deployment assemblies, two telescopic rods retract can drive two deployment assemblies to move in opposite direction, so that the included angle between hinged two cantilevers becomes larger, and cantilever is deployed.Based on realizing the automatic deployment of vehicle-mounted unmanned plane, the endurance mileage of vehicle-mounted unmanned plane is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle-mounted unmanned aerial vehicle, and in particular to a vehicle-mounted unmanned aerial vehicle cantilever passive unfolding mechanism and an unfolding method thereof. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute the prior art.

[0003] The conventional multi-rotor vehicle-mounted unmanned aerial vehicle usually adopts a foldable cantilever form, i.e., the cantilever is rotatably connected to the fuselage, so that the cantilever can be unfolded or folded relative to the fuselage. The conventional multi-rotor vehicle-mounted unmanned aerial vehicle needs to be manually rotated before takeoff, and the cantilever is unfolded or folded, which cannot be directly applied to the vehicle-mounted unmanned aerial vehicle.

[0004] In order to adapt to the automatic start-stop requirement of the vehicle-mounted unmanned aerial vehicle, a technical solution of installing a driving component on the vehicle-mounted unmanned aerial vehicle is proposed to drive the cantilever of the vehicle-mounted unmanned aerial vehicle to automatically unfold or fold. However, after the driving component is installed on the vehicle-mounted unmanned aerial vehicle, the weight of the vehicle-mounted unmanned aerial vehicle is increased, which affects the endurance mileage.

[0005] Therefore, how to design a cantilever unfolding or folding mechanism to realize the automatic unfolding of the cantilever before takeoff of the vehicle-mounted unmanned aerial vehicle and the automatic folding of the cantilever after recovery, and not to affect the endurance mileage of the vehicle-mounted unmanned aerial vehicle, has become an important technical problem to be solved by the technical personnel in the field. SUMMARY

[0006] In order to solve the above problems, the present application proposes a vehicle-mounted unmanned aerial vehicle cantilever passive unfolding mechanism and an unfolding method thereof, which can realize the automatic unfolding or folding of the cantilever of the vehicle-mounted unmanned aerial vehicle and improve the endurance mileage of the vehicle-mounted unmanned aerial vehicle.

[0007] To achieve the above purpose, the present application adopts the following technical solutions:

[0008] In a first aspect, a vehicle-mounted unmanned aerial vehicle cantilever passive unfolding mechanism is provided, comprising a fuselage and two driving mechanisms;

[0009] A guide groove is provided on the fuselage, and the two ends of the fuselage are connected to two cantilevers respectively, and the two cantilevers at the same end are hinged through a pin shaft sleeve. The two pin shaft sleeves are slidably connected with the guide groove and can move towards or away from each other under the driving of the two driving mechanisms;

[0010] The driving mechanism comprises a telescopic rod, a driving head and an unfolding assembly. The unfolding assembly is connected with the pin shaft sleeve, the telescopic rod is connected with the runway, and the driving head is connected with the telescopic rod. When the telescopic rod is elongated, the driving head can be moved to be connected with the unfolding assembly;

[0011] When the two driving heads are connected with the two unfolding assemblies, the two telescopic rods retracting can drive the two unfolding assemblies to move in opposite directions, so that the included angle between the two articulated cantilevers increases, and the cantilevers are unfolded.

[0012] Further, the elastic component is connected between the two pin shaft sleeves, and in the cantilever unfolding state, the elastic component is in a tension state.

[0013] Further, the unfolding assembly comprises a pull rod and a traction head, the pin shaft sleeve is connected with the pull rod, and the pull rod is connected with the traction head.

[0014] The traction head comprises a connecting rod, a first circular table, a second circular table and a second compression spring, the connecting rod is connected with the pull rod, the first circular table is fixedly connected with the connecting rod, the second circular table is slidably connected with the connecting rod, the second circular table is located between the first circular table and the pull rod, the second compression spring is arranged between the second circular table and the first circular table, and the telescopic rod is elongated to drive the driving head to be connected with the traction head.

[0015] Further, the driving head comprises a clamping sleeve, a plurality of telescopic pins are connected with the clamping sleeve, the plurality of telescopic pins are arranged along the radial direction of the clamping sleeve, each telescopic pin can move along the radial direction of the clamping sleeve, one end of the telescopic pin towards the inside of the clamping sleeve is connected with a wedge-shaped block, a third compression spring is arranged between the telescopic pin and the clamping sleeve, the clamping sleeve is connected with the telescopic rod, and when the telescopic rod is elongated, the clamping sleeve can be sleeved outside the first circular table or the second circular table and slide along the outer wall of the first circular table and the second circular table.

[0016] Further, the machine body comprises a main frame and a sub-frame, the sub-frame is connected with the upper end of the main frame through a support rod, a long groove is arranged on the cantilever, and the cantilever is slidably connected with the support rod through the long groove.

[0017] Further, the lower end of the main frame is connected with a battery cabin, a limiting guide groove is arranged at the upper end of the battery cabin, the limiting guide groove corresponds to the guide groove, a locking hole is arranged at the bottom of the limiting guide groove, and a through hole is formed at the lower end of the locking hole.

[0018] A first compression spring and a locking pin are arranged in the pin shaft sleeve, the locking pin is slidably connected with the pin shaft sleeve, one end of the locking pin extends out of the pin shaft sleeve and is slidably connected with the limiting guide groove, and when the cantilever is unfolded, the end of the locking pin extending out of the pin shaft sleeve extends into the locking hole.

[0019] Further, the lower end of the battery cabin is connected with a magnetic seat.

[0020] Further, a magnetic component is arranged at the bottom of the locking hole.

[0021] In a second aspect, an unfolding method of the unmanned aerial vehicle cantilever passive unfolding mechanism disclosed in the first aspect is provided, and the method comprises the following steps.

[0022] The two telescopic rods are elongated, the two driving heads are connected with the two unfolding assemblies, then the telescopic rods are retracted, the two pin shaft sleeves are driven by the two unfolding assemblies to move in opposite directions, the included angle between the two hinged cantilevers is increased, and the cantilevers are unfolded.

[0023] Further, the locking pin is separated from the locking hole, and under the elastic force of the elastic component, the two pin shaft sleeves move towards each other along the guide groove, the included angle between the two hinged cantilevers is reduced, and the cantilevers are folded.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] 1、The two cantilevers located at the same end are hinged through the pin shaft sleeve, and the pin shaft sleeve can move in opposite directions along the fuselage guide groove under the driving of the driving mechanism, so that the cantilevers are unfolded and folded, the unfolding and folding of the cantilevers of the vehicle-mounted unmanned aerial vehicle are realized, the driving mechanism is arranged on the landing apron instead of the fuselage, the overall weight of the vehicle-mounted unmanned aerial vehicle is reduced, and the endurance mileage of the vehicle-mounted unmanned aerial vehicle is effectively improved.

[0026] 2、The elastic component is connected between the two pin shaft sleeves, in the unfolded state of the cantilevers, the elastic component is in a tension state, when the cantilevers need to be folded, the elastic component in tension can drive the cantilevers to fold, and the automatic folding function of the vehicle-mounted unmanned aerial vehicle is realized.

[0027] 3、The locking hole is arranged at the bottom of the limiting guide groove, the magnetic component is arranged at the bottom of the locking hole, the through hole is arranged at the lower end of the locking hole, the locking pin capable of being retracted is arranged in the pin shaft sleeve, when the cantilevers are unfolded, one end of the locking pin protruding from the pin shaft sleeve is inserted into the locking hole, the unfolded cantilevers are fixed through the locking hole, the cantilevers are prevented from being retracted, and the stability of the unfolded cantilevers is ensured; when the cantilevers need to be folded, the locking pin can be pushed out of the locking hole by the thimble in the landing apron, and the operation is convenient.

[0028] 4、The long slot is further arranged on the cantilever, the cantilever is slidably connected with the supporting rod through the long slot, the movement of the cantilever is guided and limited during the unfolding and folding of the cantilever, and the stability of the unfolding and folding of the cantilever is ensured.

[0029] 5、The end of the telescopic pin in the driving head is provided with a wedge-shaped block, the traction head is provided with two circular tables, through the telescopic movement of the telescopic rod and the telescopic movement of the telescopic pin, the wedge-shaped block can be conveniently clamped on the traction head, and the wedge-shaped block can be smoothly separated from the traction head, so that the connection and disconnection between the driving head and the traction head are realized, and when the driving mechanism is arranged on the landing apron, the vehicle-mounted unmanned aerial vehicle can also be driven to unfold.

[0030] Advantages of the present application additional aspects will be given in part in the following description, part will become apparent from the following description, or by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, are included to provide a further understanding of the application, and together with the description, serve to explain the application.

[0032] Figure 1 The vehicle-mounted unmanned aerial vehicle cantilever passive deployment mechanism disclosed by the embodiment and the airport position schematic diagram;

[0033] Figure 2 The overall structure of the vehicle-mounted unmanned aerial vehicle disclosed by the embodiment is shown in Figure 1 ;

[0034] Figure 3 The overall structure of the vehicle-mounted unmanned aerial vehicle disclosed by the embodiment is shown in Figure 2 ;

[0035] Figure 4 The structure schematic diagram of the deployment assembly disclosed by the embodiment is shown in

[0036] Figure 5 The Figure 4 A position partial enlarged view in

[0037] Figure 6 The Figure 1 B position partial enlarged view in

[0038] Figure 7 The spring pin assembly sectional view is shown in

[0039] Figure 8 The battery cabin structure schematic diagram is shown in

[0040] Wherein: 1, main frame; 2, sub-frame; 3, battery cabin; 4, magnetic seat; 5, spring pin assembly; 6, cantilever; 7, motor rotor assembly; 8, support foot; 9, deployment assembly;

[0041] 1-1, telescopic rod; 1-2, clamping sleeve; 1-3, telescopic pin; 1-4, wedge block; 1-5, third compression spring; 1-6, limit cap;

[0042] 10, guide groove; 11, elastic component; 12, support rod;

[0043] 30, limit guide groove; 30-1, locking hole; 30-2, magnetic component; 30-3, through hole;

[0044] 50, pin shaft sleeve; 51, lock pin; 52, first compression spring; 53, limit nut; 54, nut;

[0045] 60, long slot;

[0046] 90, pull rod; 91, connecting rod; 92, first circular table; 93, second circular table; 94, second compression spring. DETAILED DESCRIPTION

[0047] The application will be further described below in conjunction with the drawings and embodiments.

[0048] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0049] In the present application, terms such as "fixedly connected", "connected", "connected" and the like should be broadly understood, which can be fixedly connected, integrally connected or detachably connected; can be directly connected, or indirectly connected through an intermediate medium. For related researchers or technicians in the art, the specific meaning of the above terms in the present application can be determined according to the specific circumstances, and cannot be understood as a limitation on the present application.

[0050] In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0051] Embodiment 1

[0052] In this embodiment, a vehicle-mounted unmanned aerial vehicle cantilever passive deployment mechanism is disclosed, as shown in Figures 1-8 including a fuselage and two driving mechanisms;

[0053] A guide slot 10 is provided on the fuselage, and two cantilevers 6 are connected to the two ends of the fuselage, respectively, and the two cantilevers 6 at the same end are hinged through a pin shaft sleeve 50, both pin shaft sleeves 50 are in sliding connection with the guide slot 10, and can move towards each other and away from each other along the guide slot 10 under the drive of the two driving mechanisms;

[0054] The driving mechanism includes a telescopic rod 1-1, a driving head and a deployment assembly 9, the deployment assembly 9 is connected with the pin shaft sleeve 50, the telescopic rod 1-1 is connected with the apron, the driving head is connected with the telescopic rod 1-1, and when the telescopic rod 1-1 is extended, the driving head can be moved to be connected with the deployment assembly 9;

[0055] When the two driving heads are connected with the two deployment assemblies 9, the two telescopic rods 1-1 can drive the two deployment assemblies 9 to move in opposite directions, so that the included angle between the two hinged cantilevers 6 increases, and the cantilever 6 is deployed.

[0056] Among them, the fuselage is the fuselage of the vehicle-mounted unmanned aerial vehicle, as shown in Figure 2As shown, the fuselage includes a main frame 1 and a sub-frame 2, the sub-frame 2 is connected with the upper end of the main frame 1 through a support rod 12, a long slot 60 is arranged on the cantilever 6, the cantilever 6 is slidably connected with the support rod 12 through the long slot 60, the sliding connection of the long slot with the support rod 12 provides a guide for the unfolding and folding of the cantilever 6, and ensures the stability of the cantilever 6 after unfolding.

[0057] One end of each cantilever 6 is connected with the motor rotor assembly 7, the other end of the cantilever 6 is hingedly connected with the cantilever 6 at the same end of the fuselage through a pin shaft sleeve 50, the support foot 8 is hingedly connected with one end of the motor rotor assembly 7 connected with the cantilever 6, and can provide support for the parked vehicle-mounted unmanned aerial vehicle through the support foot 8.

[0058] The lower end of the main frame 1 is connected with the battery cabin 3, and the lower end of the battery cabin 3 is connected with the magnetic seat 4. Through the arrangement of the magnetic seat 4, the vehicle-mounted unmanned aerial vehicle is stably parked in the parking apron.

[0059] Specifically, the embodiment further provides a limiting guide slot 30 at the upper end of the battery cabin 3, the limiting guide slot 30 corresponds to the guide slot 10, the bottom of the limiting guide slot 30 is provided with a locking hole 30-1, a through hole 30-3 is formed at the lower end of the locking hole 30-1, two cantilevers 6 at the same end are hingedly connected through a spring pin assembly 5, the spring pin assembly 5 includes a pin shaft sleeve 50, a first compression spring 52 and a locking pin 51 are arranged in the pin shaft sleeve 50, the first compression spring 52 is in the pin shaft sleeve 50, the locking pin 51 is slidably connected with the pin shaft sleeve 50, and one end of the locking pin 51 extends out of the pin shaft sleeve 50 and is slidably connected with the limiting guide slot 30, when the cantilever 6 is unfolded, the one end of the locking pin 51 extending out of the pin shaft sleeve 50 extends into the locking hole 30-1.

[0060] In order to make the locking pin 51 smoothly enter the locking hole 30-1, the embodiment further provides a magnetic component 30-2 at the bottom of the locking hole 30-1, the magnetic component 30-2 provides an attractive force to the locking pin 51, so that the locking pin 51 is smoothly inserted into the locking hole 30-1, and the locking pin 51 can be stably locked.

[0061] As shown in the figure, Figure 7 The one end of the pin shaft sleeve 50 is provided with a limiting nut 53, the other end is provided with a nut 54, and the locking pin 51 extends out of the one end of the pin shaft sleeve 50 where the nut 54 is installed. The first compression spring 52 is between the limiting nut 53 and the locking pin 51, when the pin shaft sleeve 50 moves to the position of the locking hole 30-1, under the action of the first compression spring 52 and the magnetic component 30-2, the locking pin 51 extends into the locking hole 30-1, the locking pin 51 is locked through the locking hole 30-1, and the stability of the cantilever 6 in the unfolded state is ensured.

[0062] As shown in the figure, Figure 4As shown, the embodiment also connects the elastic component 11 between the two pin shaft sleeves 50, and the elastic component 11 is in tension when the cantilever arm 6 is unfolded. The top pin is arranged on the parking apron, and when the vehicle-mounted unmanned aerial vehicle is parked on the parking apron, the top pin is aligned with the through hole 30-3. When the cantilever arm 6 needs to be folded, the top pin in the parking apron passes through the through hole 30-3 to lift the locking pin 51, so that the locking pin 51 is lifted out of the locking hole 30-1. Under the tension of the elastic component 11, the two pin shaft sleeves 50 move towards each other along the guide groove 10, the included angle between the two hinged cantilever arms 6 becomes smaller, and the folding of the cantilever arm 6 is realized.

[0063] In specific implementation, the magnetic component 30-2 can be a button magnet, the elastic component 11 can be an elastic rope, the limiting nut 53 can be screwed on the upper end of the pin shaft sleeve 50, and the nut 54 can be screwed on the outer wall of the lower end of the pin shaft sleeve 50.

[0064] As shown in the drawings, Figure 8 The guide groove 10 is arranged at the middle position of the main rack 1, the limiting guide groove 30 is arranged on the battery cabin 3, the guide groove 10 corresponds to the limiting guide groove 30, and the locking hole 30-1 is arranged in the limiting guide groove 30. The locking pin 51 is slidably connected with the limiting guide groove 30, and when the pin shaft sleeve 50 moves along the guide groove 10, the locking pin 51 moves along the limiting guide groove 30, and the limiting guide groove 30 provides guidance and support for the locking pin 51.

[0065] The long groove 60 is arranged along the length direction of the cantilever arm 6, the long groove 60 is arranged on each cantilever arm 6, the auxiliary rack 2 is connected with the main rack 1 through the four supporting rods 12, and the four cantilever arms 6 are slidably connected with the four supporting rods 12 one by one through the long grooves 60.

[0066] In order to facilitate the connection and separation of the driving head of the driving mechanism and the pin shaft sleeve 50, the embodiment connects the pin shaft sleeve 50 with the unfolding assembly 9, as shown in the drawings, Figure 4 , Figure 5 The pin shaft sleeve 50 is connected with the pull rod 90, the pull rod 90 is connected with the traction head, the traction head includes a connecting rod 91, a first circular table 92, a second circular table 93 and a second compression spring 94, the connecting rod 91 is connected with the pull rod 90, the first circular table 92 is fixedly connected with the connecting rod 91, the second circular table 93 is slidably connected with the connecting rod 91, the second circular table 93 is located between the first circular table 92 and the pull rod 90, the second compression spring 94 is arranged between the second circular table 93 and the first circular table 92, and the extension of the telescopic rod 1-1 can drive the driving head to be connected with the traction head.

[0067] In specific implementation, the first circular table 92 and the second circular table 93 are both conical bosses, and the large-diameter end of the first circular table 92 is arranged opposite to the large-diameter end of the second circular table 93.

[0068] The pull rod 90 is sleeved on the lower end of the pin shaft sleeve 50 and locked by the nut 54. The pull rod 90 is in sliding connection with the limiting guide groove 30, and the movement of the pull rod 90 is guided by the limiting guide groove 30. The first circular table 92 is fixedly connected with the end of the connecting rod 91, and the second circular table 93 is in sliding connection with the connecting rod 91. The connecting rod 91 can be a screw rod, so as to facilitate the connection of the connecting rod 91 with the first circular table 92 and the pull rod 90.

[0069] As shown in Figure 6 The driving head comprises a clamping sleeve 1-2 connected with a plurality of telescopic pins 1-3 arranged along the radial direction of the clamping sleeve 1-2 and each capable of moving along the radial direction of the clamping sleeve 1-2. The telescopic pin 1-3 is connected with a wedge-shaped block 1-4 at one end thereof towards the inside of the clamping sleeve 1-2. A third compression spring 1-5 is arranged between the telescopic pin 1-3 and the clamping sleeve 1-2. The clamping sleeve 1-2 is connected with a telescopic rod 1-1. When the telescopic rod 1-1 is extended, the clamping sleeve 1-2 can be sleeved outside the first circular table 92 or the second circular table 93 and slide along the outer wall of the first circular table 92 and the second circular table 93, so as to clamp the traction head by the plurality of wedge-shaped blocks 1-4.

[0070] In the specific implementation, the clamping sleeve 1-2 is provided with a cavity for accommodating the traction head, and the opening of the cavity faces the traction head. A plurality of telescopic pins 1-3 are circumferentially arranged on the clamping sleeve 1-2, one end of the telescopic pin 1-3 is located outside the clamping sleeve 1-2, the other end of the telescopic pin 1-3 extends into the clamping sleeve 1-2, and the end of the telescopic pin 1-3 located outside the clamping sleeve 1-2 is connected with a limiting cap 1-6, which can prevent the telescopic pin 1-3 from completely entering the clamping sleeve 1-2 and limit the telescopic stroke of the telescopic pin 1-3. A third compression spring 1-5 is sleeved on the telescopic pin 1-3, and the inclined surface of the wedge-shaped block 1-4 faces the traction head. When the telescopic rod 1-1 is extended by a distance, a plurality of wedge-shaped blocks 1-4 are in contact with the conical surface of the first circular table 92, at this time, the third compression spring 1-5 is compressed, and the telescopic rod 1-1 continues to be extended, and the plurality of wedge-shaped blocks 1-4 continue to move along the conical surface of the first circular table 92 until they are separated from the conical surface of the first circular table 92. The wedge-shaped block 1-4 is restored to the initial position under the elastic force of the third compression spring 1-5, and is hung on the first circular table 92. At this time, if the telescopic rod 1-1 is retracted, it will drive the first circular table 92 to move, and in turn drive the pin shaft sleeve 50 to move along the guide groove 10. When the plurality of wedge-shaped blocks 1-4 are between the first circular table 92 and the second circular table 93, if the telescopic rod 1-1 continues to be extended, the inclined surface of the plurality of wedge-shaped blocks 1-4 will be in contact with the second circular table 93, and the telescopic rod 1-1 will continue to be extended, so that the plurality of wedge-shaped blocks 1-4 are in contact with the conical surface of the second circular table 93. At this time, the third compression spring 1-5 is compressed, so that the plurality of wedge-shaped blocks 1-4 can clamp the second circular table 93. At this time, if the telescopic rod 1-1 is retracted, it will drive the second circular table 93 to move along the connecting rod 91, and further compress the second compression spring 94 through the movement of the second circular table 93, until the second circular table 93 is in contact with the first circular table 92. After that, the telescopic rod 1-1 continues to be retracted, which will drive the wedge-shaped block 1-4 to pass through the second circular table 93 and the first circular table 92 in turn, and finally separate from the traction head.

[0071] The number of wedge-shaped blocks 1-4 in the embodiment can be set according to specific use requirements, and is at least two.

[0072] The telescopic rod 1-1 is a micro electric push rod, the fixed end of the micro electric push rod is connected with the parking apron, and the movable end of the micro electric push rod is connected with the clamping sleeve 1-2.

[0073] When the vehicle-mounted unmanned aerial vehicle flies back to the parking apron, the vehicle-mounted unmanned aerial vehicle body is between the two driving mechanisms, and the two pin shaft sleeves 50 are arranged opposite to the two driving heads. When the vehicle-mounted unmanned aerial vehicle needs to take off, the driving mechanism drives the two pin shaft sleeves 50 to move in opposite directions along the guide groove 10, so as to unfold the cantilever 6. The unfolding process is as follows: the telescopic rod 1-1 is elongated, the driving clamping sleeve 1-4, the telescopic pin 1-3, the wedge block 1-4, the third compression spring 1-5 and the limiting cap 1-6 are moved to the first circular table 92, until the wedge block 1-4 is in contact with the conical surface of the first circular table 92, the telescopic rod 1-1 is continuously elongated, then passes through the conical surface of the first circular table 92, and under the elastic restoring force of the third compression spring 1-5, the telescopic pin 1-3 is hung with the wedge block 1-4 on the first circular table 92, the telescopic rod 1-1 is retracted, the connecting rod 91 is pulled out by the first circular table 92, the pull rod 90 is slid outward in the limiting guide groove 30, then the pull rod 90 is slid along the guide groove 10 with the pin shaft sleeve 50, until the locking pin 51 is inserted into the locking hole 30-1 under the joint action of the first compression spring 52 and the magnetic component 30-2. In the process, under the constraint of the supporting rod 12, the included angle between the two hinged cantilevers 6 becomes larger, and the four cantilevers 6 are simultaneously and actively unfolded. Then, the telescopic rod 1-1 is elongated again, the driving clamping sleeve 1-4, the telescopic pin 1-3, the wedge block 1-4, the third compression spring 1-5 and the limiting cap 1-6 are moved to the second circular table 93, until the wedge block 1-4 is in contact with the conical surface of the second circular table 93, then the telescopic pin 1-3 is clamped with the wedge block 1-4 on the second circular table 93 under the elastic restoring force of the third compression spring 1-5, then the telescopic rod 1-1 is retracted again, the second compression spring 94 is further compressed by the movement of the second circular table 93, until the second circular table 93 is in contact with the first circular table 92, and as the telescopic rod 1-1 continues to retract, the wedge block 1-4 is separated from the first circular table 92 and the second circular table 93.

[0074] When the vehicle-mounted unmanned aerial vehicle flies back to the parking apron, the cantilever 6 needs to be folded and retracted, so that the entire vehicle-mounted unmanned aerial vehicle can adapt to the size space of the parking apron. The folding and retracting process of the cantilever 6 of the passive unfolding mechanism of the vehicle-mounted unmanned aerial vehicle disclosed in the embodiment is as follows: the top pin passes through the through hole 30-3, and the locking pin 51 is upwardly locked to make the locking pin 51 separate from the locking effect of the locking hole 30-1, the pin shaft sleeves 50 on both sides move to the middle along the guide groove 10 under the elastic force of the elastic component 11, at the same time, under the constraint of the supporting rod 12, the included angle between the two hinged cantilevers 6 becomes smaller, and the four cantilevers 6 are simultaneously folded and retracted, the size in the X coordinate axis and Y coordinate axis directions is reduced, and the parking on the parking apron is suitable.

[0075] When it is needed to carry the vehicle-mounted unmanned aerial vehicle by the off-road SUV vehicle, the upper end of the spare tire box of the off-road SUV vehicle's external spare tire can be used as a parking apron to park the vehicle-mounted unmanned aerial vehicle disclosed in the embodiment.

[0076] The cantilever passive unfolding mechanism of the vehicle-mounted unmanned aerial vehicle disclosed in the embodiment is hinged to two cantilevers 6 at the same end through a pin shaft sleeve 50, and the pin shaft sleeve 50 can move in opposite directions along a body guide groove 10 under the driving of a driving mechanism, so as to unfold and fold the cantilevers 6, thereby realizing automatic unfolding and folding of the vehicle-mounted unmanned aerial vehicle. Meanwhile, the driving mechanism is arranged on the landing apron instead of the body of the vehicle-mounted unmanned aerial vehicle, thereby reducing the overall weight of the vehicle-mounted unmanned aerial vehicle and effectively improving the endurance mileage of the vehicle-mounted unmanned aerial vehicle.

[0077] Embodiment 2

[0078] In this embodiment, an unfolding method of the cantilever passive unfolding mechanism of the vehicle-mounted unmanned aerial vehicle disclosed in embodiment 1 is disclosed, which comprises the following steps.

[0079] The two telescopic rods 1-1 are elongated to drive the two driving heads to be connected with the two unfolding assemblies 9, then the telescopic rods 1-1 are retracted to drive the two pin shaft sleeves 50 to move in opposite directions through the two unfolding assemblies 9, thereby increasing the included angle between the two hinged cantilevers 6 and unfolding the cantilevers 6.

[0080] Further, the locking pin 51 is disengaged from the locking hole 30-1, and under the elastic force of the elastic member 11, the two pin shaft sleeves 50 move in opposite directions along the guide groove 10, thereby reducing the included angle between the two hinged cantilevers 6 and folding the cantilevers 6.

[0081] Although the specific embodiments of the present application are described above with reference to the accompanying drawings, the description is not a limitation on the scope of protection of the present application, and those skilled in the art should understand that various modifications or changes made by those skilled in the art on the basis of the technical solutions of the present application without creative labor are still within the scope of protection of the present application.

Claims

1. A vehicle-mounted unmanned aerial vehicle cantilever passive deployment mechanism, characterized in that, The body and two driving mechanisms are included; The body is provided with a guide groove, and two ends of the body are respectively connected with two cantilever arms, and the two cantilever arms at the same end are hingedly connected through pin shaft sleeves, the two pin shaft sleeves are slidably connected with the guide groove, and can move towards each other and away from each other along the guide groove under the driving of the two driving mechanisms; The driving mechanism includes a telescopic rod, a driving head and an unfolding assembly, the unfolding assembly is connected with the pin shaft sleeve, the telescopic rod is connected with the apron, the driving head is connected with the telescopic rod, and when the telescopic rod is elongated, the driving head can be moved to be connected with the unfolding assembly; The unfolding assembly includes a pull rod and a traction head, the pull rod is connected with the pin shaft sleeve, and the pull rod is connected with the traction head; The traction head includes a connecting rod, a first circular table, a second circular table and a second compression spring, the connecting rod is connected with the pull rod, the first circular table is fixedly connected with the connecting rod, the second circular table is slidably connected with the connecting rod, the second circular table is located between the first circular table and the pull rod, the second compression spring is arranged between the second circular table and the first circular table, and the telescopic rod is elongated to enable the driving head to be connected with the traction head; When the two driving heads are connected with the two unfolding assemblies, the two telescopic rods are retracted to drive the two unfolding assemblies to move away from each other, so that the included angle between the two hingedly connected cantilever arms is increased, and the cantilever arms are unfolded.

2. The vehicle-mounted unmanned aerial vehicle cantilever passive unfolding mechanism according to claim 1, wherein, The elastic component is connected between the two pin shaft sleeves, and in the unfolded state of the cantilever arms, the elastic component is in a tension state.

3. The vehicle-mounted unmanned aerial vehicle cantilever passive unfolding mechanism according to claim 1, wherein, The driving head includes a clamping sleeve, a plurality of telescopic pins are connected with the clamping sleeve, the plurality of telescopic pins are arranged in the radial direction of the clamping sleeve, each telescopic pin can move in the radial direction of the clamping sleeve, one end of the telescopic pin towards the inside of the clamping sleeve is connected with a wedge-shaped block, a third compression spring is arranged between the telescopic pin and the clamping sleeve, the clamping sleeve is connected with the telescopic rod, and when the telescopic rod is elongated, the clamping sleeve can be sleeved outside the first circular table or the second circular table and slide along the outer wall of the first circular table and the second circular table.

4. The vehicle-mounted unmanned aerial vehicle cantilever passive unfolding mechanism according to claim 1, wherein, The body includes a main frame and a secondary frame, the secondary frame is connected with the upper end of the main frame through a support rod, a long groove is arranged on the cantilever arm, and the cantilever arm is slidably connected with the support rod through the long groove.

5. The vehicle-mounted unmanned aerial vehicle cantilever passive unfolding mechanism according to claim 4, characterized in that, The lower end of the main frame is connected with a battery cabin, a limiting guide groove is arranged at the upper end of the battery cabin, the limiting guide groove corresponds to the guide groove, a locking hole is arranged at the bottom of the limiting guide groove, and a through hole is formed at the lower end of the locking hole; A first compression spring and a locking pin are arranged in the pin shaft sleeve, the locking pin is slidably connected with the pin shaft sleeve, one end of the locking pin extends out of the pin shaft sleeve and is slidably connected with the limiting guide groove, and when the cantilever arm is unfolded, the end of the locking pin extending out of the pin shaft sleeve extends into the locking hole.

6. The vehicle-mounted unmanned aerial vehicle cantilever passive unfolding mechanism according to claim 5, characterized in that, The lower end of the battery cabin is connected with a magnetic seat.

7. The vehicle-mounted unmanned aerial vehicle cantilever passive unfolding mechanism according to claim 5, characterized in that, A magnetic component is arranged at the bottom of the locking hole.

8. The method of claim 1-7, wherein, The two telescopic rods are elongated to drive the two driving heads to be connected with the two unfolding assemblies, then the telescopic rods are retracted to drive the two pin shaft sleeves to move away from each other through the two unfolding assemblies, so that the included angle between the two hingedly connected cantilever arms is increased, and the cantilever arms are unfolded. The locking pin is separated from the locking hole, and under the elastic force of the elastic component, the two pin shaft sleeves move towards each other along the guide groove, so that the included angle between the two hingedly connected cantilever arms is reduced, and the cantilever arms are folded.

9. The method of claim 8, wherein, ​

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