A multifunctional unmanned vehicle

Abstract

This invention belongs to the field of unmanned vehicle technology, and specifically relates to a multi-functional unmanned vehicle. The technical solution is as follows: A multi-functional unmanned vehicle includes a vehicle frame assembly, on which a steering system, a front suspension system, and a rear suspension system are respectively mounted. The output end of the steering system is connected to the front suspension system. A motion mechanism is also connected to the vehicle frame assembly, and the output end of the motion mechanism is connected to a landing pad. The motion mechanism extends or retracts onto the landing pad, where a drone is parked. The landing pad is equipped with charging contacts for charging the drone and a locking mechanism for locking and positioning the drone. This invention provides a multi-functional unmanned vehicle capable of ground-air collaborative operation, enabling rapid take-off and landing of drones and accurate locking and positioning.

Description

Technical Field

[0001] This invention belongs to the field of unmanned vehicle technology, and specifically relates to a multi-functional unmanned vehicle. Background Technology

[0002] With the development of autonomous driving technology, unmanned patrol vehicles have become the target of research and development for various technology companies. However, unmanned patrol vehicles have a simple structure, poor maneuverability, and limited application scenarios, making them unsuitable for unmanned patrol missions in various scenarios. There is an urgent need for a multi-range, air-ground integrated unmanned device.

[0003] However, existing large wheeled robots are limited in application scenarios due to their single built-in sensor; therefore, there is an urgent need for a multifunctional wheeled robot with strong mobility to enter people's lives. Summary of the Invention

[0004] In order to solve the above-mentioned problems in the existing technology, the purpose of this invention is to provide a multi-functional unmanned vehicle that can cooperate between ground and air, and can realize rapid take-off and landing and accurate locking and positioning of drones.

[0005] The technical solution adopted in this invention is as follows:

[0006] A multi-functional unmanned vehicle includes a vehicle frame assembly, on which a steering system, a front suspension system, and a rear suspension system are respectively installed. The output end of the steering system is connected to the front suspension system. The vehicle frame assembly is also connected to a motion mechanism, the output end of which is connected to a landing pad. The motion mechanism extends or retracts the landing pad, on which a drone is parked. The landing pad is equipped with charging contacts for charging the drone and a locking mechanism for locking and positioning the drone.

[0007] The steering system of this invention drives the front suspension system, while the rear suspension system provides forward propulsion for the unmanned vehicle. The unmanned vehicle of this invention carries a drone, enabling coordinated ground-air operations. The motion mechanism can extend and retract the landing pad, thus preventing other structures on the unmanned vehicle from obstructing the drone during takeoff and landing, allowing for rapid takeoff and landing. The locking mechanism can lock and accurately position the drone, ensuring reliable charging.

[0008] In a preferred embodiment of the present invention, a vehicle shell is connected to the vehicle frame assembly, and a binocular camera and a fisheye camera are respectively mounted on the vehicle shell; the vehicle frame assembly includes a vehicle frame, on which an antenna, a lidar, a loudspeaker, a screen, and a gyroscope are respectively mounted, and an integrated audio-visual monitoring device is also connected to the vehicle frame via a lifting rod. The unmanned vehicle of the present invention is equipped with multiple sensors and other devices, enabling it to cope with various complex environments.

[0009] In a preferred embodiment of the present invention, the steering system includes a bogie connected to a vehicle frame assembly, a steering drive shaft rotatably connected to the bogie, a steering fork connected to the steering drive shaft, and the steering fork rotatably connected to the front suspension system via a steering linkage; one end of the steering drive shaft is connected to an electronic power steering motor, the other end of the steering drive shaft is connected to a steering gear, the steering gear is driven by a cross steering knuckle, the cross steering knuckle is driven by a steering tie rod, the other end of the steering tie rod is connected to a throttle, and the cross steering knuckle and the steering tie rod are mounted on the bogie.

[0010] In manual driving mode, the driver operates the throttle, which rotates the steering tie rod. The tie rod, through the steering knuckle, drives the steering gear, which in turn drives the steering drive shaft to rotate the steering fork. The steering fork, via the steering linkage, tilts the front suspension system, enabling the unmanned vehicle to steer. In automatic or remote-controlled driving mode, the electronic power steering motor drives the steering drive shaft, thus enabling automatic, remote-controlled, or manual driving. This steering system is compact and offers flexible steering.

[0011] As a preferred embodiment of the present invention, the front suspension system includes a steering mechanism that is rotatably connected to the vehicle frame assembly and the steering system, respectively. A front suspension is connected between the steering mechanism and the vehicle frame assembly. A wheel hub drive shaft is rotatably connected to the steering mechanism. A front tire is rotatably connected to the wheel hub drive shaft. A front auxiliary drive mechanism is also installed on the steering mechanism. The front auxiliary drive mechanism includes a motor mounting bracket fixed to the steering mechanism. An auxiliary motor is installed on the motor mounting bracket. A one-way bearing is connected to the rotating shaft of the auxiliary motor. A transmission mechanism is connected between the one-way bearing and the wheel hub drive shaft.

[0012] A one-way bearing connects the auxiliary motor's rotating shaft to the transmission mechanism, allowing the auxiliary motor's shaft to transmit power to the transmission mechanism via the one-way bearing, while the transmission mechanism cannot transmit power to the auxiliary motor. When high torque output is required, such as during hill climbing or obstacle crossing, the ratchet of the one-way bearing engages, allowing the auxiliary motor's rotating shaft to transmit power to the transmission mechanism. The transmission mechanism then drives the wheel hub drive shaft and front tires, thus enhancing the vehicle's overall power characteristics by adding an auxiliary motor. On flat roads, the ratchet of the one-way bearing does not engage, preventing the transmission mechanism from transmitting power to the auxiliary motor via the one-way bearing, reducing rolling resistance.

[0013] As a preferred embodiment of the present invention, the rear suspension system includes a rear wheel bracket rotatably connected to the vehicle frame assembly, a rear suspension connecting the rear wheel bracket and the vehicle frame assembly, a main motor mounted on the vehicle frame assembly, a drive shaft connected to the output end of the main motor, the drive shaft rotatably connected to the rear wheel bracket, and a rear small sprocket connected to the drive shaft; it also includes a spindle, a rotating flange assembly rotatably connected to the spindle, a rear tire and a rear large sprocket mounted on the rotating flange assembly, and the rear small sprocket and the rear large sprocket connected by chain drive.

[0014] When the main motor drives the drive shaft to rotate, the small rear sprocket on the drive shaft drives the large rear sprocket to rotate via a chain, thereby rotating the flange assembly and driving the rear tire to rotate. This invention drives the rear tire through rear chain transmission, thus enabling the unmanned vehicle to move. It can transmit a large torque and has a relatively simple structure.

[0015] As a preferred embodiment of the present invention, the motion mechanism includes a mounting platform on which a lifting mechanism is mounted; the lifting mechanism includes an electric push rod rotatably connected to the mounting platform, an intermediate shaft rotatably connected to the piston rod of the electric push rod, transverse connecting rods hinged to both ends of the intermediate shaft, longitudinal connecting rods hinged to both ends of the transverse connecting rods, one end of the longitudinal connecting rods hinged to the mounting platform, and the other end of the longitudinal connecting rods hinged to the helipad.

[0016] The helipad, mounting platform, and two longitudinal connecting rods on the same side form a quadrilateral structure, resulting in a quadrilateral structure on each side of the central axis. These two quadrilateral structures provide stable support for the helipad. An electric push rod controls the deformation of these two quadrilateral structures via the central axis, allowing the helipad to be extended or retracted at an angle. When extended, the helipad avoids other structures on the unmanned vehicle, facilitating drone takeoff and landing and reducing takeoff and landing time. When retracted, the helipad and drone can approach other structures on the unmanned vehicle, resulting in a compact vehicle structure.

[0017] As a preferred embodiment of the present invention, the locking mechanism is provided on two lateral moving rods and two longitudinal moving rods on the helipad. The two lateral moving rods and two longitudinal moving rods synchronously converge toward the center or synchronously disperse outward. The two lateral moving rods and two longitudinal moving rods are connected to a locking drive mechanism. The helipad is provided with a plurality of laterally arranged and a plurality of longitudinally arranged limiting grooves. One end of the lateral moving rod connected to the lateral transmission nut passes through the laterally arranged limiting groove, and the longitudinal transmission rod passes through the longitudinally arranged limiting groove.

[0018] The locking drive mechanism drives two lateral and two longitudinal moving rods to move synchronously. When the two lateral and two longitudinal moving rods converge towards the center simultaneously, the bottom of the drone is locked from four directions. Laterally arranged limiting grooves limit the lateral moving rods, and longitudinally arranged limiting grooves limit the longitudinal moving rods. When the two lateral and two longitudinal moving rods are driven by a single locking drive mechanism, they can be set to reach their locking limit positions simultaneously. Thus, the two lateral and two longitudinal moving rods accurately limit the bottom of the drone from four directions. Within the space defined by the locking limit positions of the two lateral and two longitudinal moving rods, charging contacts are provided for each charging head of the drone, ensuring reliable charging of each charging head when the drone is precisely locked and positioned.

[0019] In a preferred embodiment of the present invention, a charging head is installed on the landing gear of the drone. The charging head includes a charging mounting base, a spring is connected to the lower side of the charging mounting base, and a charging copper plate is connected to the other end of the spring. Charging contacts on the landing pad are matched with the charging copper plate, and a top plate for pressing the charging head is also provided on the landing pad.

[0020] The top plate presses the charging mount firmly, compressing the spring and pressing the charging copper plate against the charging contacts on the landing pad, ensuring reliable charging. When the drone takes off, the top plate moves away, allowing the charging copper plate to easily separate from the charging contacts, preventing the charging device from affecting the drone's takeoff and landing.

[0021] In a preferred embodiment of the present invention, the bottom surface of the top plate is inclined, and one side of the top of the charging mounting base is inclined; when locking the drone, the inclined surface of the charging mounting base presses against the inclined surface of the top plate. When both the bottom surface of the top plate and one side of the charging head are inclined, as the top plate moves toward the charging head, the inclined surface of the top plate gradually presses against the inclined surface of the charging head, further improving the contact effect between the charging copper sheet and the charging contacts.

[0022] As a preferred embodiment of the present invention, the vehicle frame assembly is further provided with a battery quick-release mechanism. The battery quick-release mechanism includes a mounting base, a mounting frame connected to the mounting base, an inlet base connected to the mounting base, a limit block installed on the side of the mounting base away from the inlet base, and a fixing component for clamping the battery detachably connected to the inlet base. The battery is installed between the mounting base, the mounting frame, the limit block and the fixing component.

[0023] The guide frame smoothly guides the battery into the space defined by the mounting base, mounting frame, and limiting blocks, where it is secured by the fixing components. The quick-release structure is simple, making battery installation and removal convenient. The fixing components are detachably connected to the guide frame; to accommodate batteries of different sizes, the corresponding size fixing components can be replaced, ensuring reliable securing of batteries of various sizes and enabling quick installation and removal.

[0024] The beneficial effects of this invention are as follows:

[0025] The steering system of this invention drives the front suspension system, while the rear suspension system provides forward propulsion for the unmanned vehicle. The unmanned vehicle of this invention carries a drone, enabling coordinated ground-air operations. The motion mechanism can extend and retract the landing pad, thus preventing other structures on the unmanned vehicle from obstructing the drone during takeoff and landing, allowing for rapid takeoff and landing. The locking mechanism can lock and accurately position the drone, ensuring reliable charging. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2This is a structural diagram of the car's outer shell;

[0028] Figure 3 This is a partial structural diagram of the present invention;

[0029] Figure 4 This is a structural schematic diagram of the vehicle frame assembly;

[0030] Figure 5 This is a schematic diagram of the steering system;

[0031] Figure 6 This is a structural diagram of the front suspension system;

[0032] Figure 7 This is a partial structural diagram of the front suspension system;

[0033] Figure 8 This is a sectional view of the front suspension system;

[0034] Figure 9 This is a sectional view of the front auxiliary drive mechanism;

[0035] Figure 10 yes Figure 9 A magnified view of a section at point A in the middle;

[0036] Figure 11 This is a structural diagram of the rear suspension system;

[0037] Figure 12 This is a sectional view of the rear suspension system;

[0038] Figure 13 This is a schematic diagram of the motion mechanism in the first direction;

[0039] Figure 14 This is a schematic diagram of the second direction of the motion mechanism;

[0040] Figure 15 This is a structural diagram of the helipad and the drone;

[0041] Figure 16 This is a schematic diagram of the locking drive mechanism;

[0042] Figure 17 It is a cross-sectional view of the helipad and the drone;

[0043] Figure 18 yes Figure 7 A magnified view of a section at point B in the middle;

[0044] Figure 19 This is a structural diagram of a drone;

[0045] Figure 20 yes Figure 19 A magnified view of a section at point C;

[0046] Figure 21 This is a schematic diagram of the quick-release mechanism for the battery when it is installed.

[0047] Figure 22 This is a schematic diagram of the quick-release mechanism for removing the battery.

[0048] In the diagram: 1-Vehicle frame assembly; 2-Steering system; 3-Front suspension system; 4-Rear suspension system; 5-Motion mechanism; 6-Helipad; 7-UAV; 8-Locking mechanism; 9-Battery quick-release mechanism; 11-Vehicle shell; 12-Binocular camera; 13-Fisheye camera; 14-Vehicle frame; 15-Antenna; 16-LiDAR; 17-Sound amplifier; 18-Screen; 19-Gyroscope; 21-Bogie; 22-Steering drive shaft; 23-Steering fork; 24-Steering linkage; 25-Electronic power steering motor; 26-Steering gear 27-Wheel; 28-Cross-shaped steering knuckle; 29-Steering tie rod; 31-Thrust handle; 32-Steering mechanism; 33-Front suspension; 34-Wheel hub drive shaft; 35-Front tire; 36-Transmission mechanism; 37-Front brake disc; 41-Rear wheel bracket; 42-Rear suspension; 43-Drive shaft; 44-Rear small sprocket; 45-Spindle; 46-Rotating flange assembly; 47-Rear tire; 48-Rear large sprocket; 49-Rear brake disc; 51-Mounting platform; 52-Pushing mechanism; 61-Limit groove; 62-Charging contact 71-Motion component; 72-UAV body; 73-Landing gear; 74-Charging head; 81-Horizontal movement rod; 82-Longitudinal movement rod; 83-Locking drive mechanism; 91-Mounting base; 92-Mounting frame; 93-Inlet base; 94-Limit block; 95-Fixing component; 141-Lifting rod; 142-Integrated audio-visual monitoring equipment; 311-Steering knuckle; 312-Center rod; 313-Fisheye bearing; 314-A-type support arm; 351-Motor mounting base; 352-Auxiliary motor; 353-One-way bearing ; 361-Front small sprocket; 362-Front large sprocket; 363-Front chain; 411-Rear horizontal fork; 412-Tensioning mechanism; 521-Electric push rod; 522-Intermediate shaft; 523-Transverse connecting rod; 524-Longitudinal connecting rod; 741-Charging mounting base; 742-Spring; 743-Charging copper sheet; 744-Plug screw; 745-End cap; 821-Top plate; 831-Locking motor; 832-Lead screw; 833-Transverse transmission nut; 834-Synchronous pulley; 835-Synchronous belt; 836-Longitudinal transmission rod. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the invention can be combined with each other.

[0051] like Figures 1-4 As shown, the multi-functional unmanned vehicle of this embodiment includes a vehicle frame assembly 1, on which a steering system 2, a front suspension system 3, and a rear suspension system 4 are respectively installed. The output end of the steering system 2 is connected to the front suspension system 3. The vehicle frame assembly 1 is also connected to a motion mechanism 5. The output end of the motion mechanism 5 is connected to a landing pad 6. The motion mechanism 5 extends or retracts the landing pad 6. The landing pad 6 holds a drone 7. The landing pad 6 is equipped with a charging contact 62 for charging the drone 7 and a locking mechanism 8 for locking and positioning the drone 7.

[0052] The steering system 2 of this invention drives the front suspension system 3, and the rear suspension system 4 provides forward propulsion for the unmanned vehicle. The unmanned vehicle of this invention carries a drone 7, enabling coordinated ground-air operations. The motion mechanism 5 can extend and retract the landing pad 6, thereby preventing other structures of the unmanned vehicle from obstructing the drone 7 during takeoff and landing, allowing for rapid takeoff and landing of the drone 7. The locking mechanism 8 can lock and accurately position the drone 7, ensuring reliable charging of the drone 7.

[0053] Among them, such as Figure 4 As shown, the vehicle frame assembly 1 is connected to a vehicle shell 11, on which a binocular camera 12 and a fisheye camera 13 are respectively mounted. The vehicle frame assembly 1 includes a vehicle frame 14, on which an antenna 15, a lidar 16, a loudspeaker 17, a screen 18, and a gyroscope 19 are respectively mounted. An integrated audio-visual monitoring device 142 is also connected to the vehicle frame 14 via a lifting rod 141. The unmanned vehicle of this invention is equipped with multiple sensors and other devices, enabling it to cope with various complex environments.

[0054] Specifically, such as Figure 5As shown, the steering system 2 includes a bogie 21 connected to the vehicle frame assembly 1. A steering drive shaft 22 is rotatably connected to the bogie 21, and a steering fork 23 is connected to the steering drive shaft 22. The steering fork 23 is rotatably connected to the front suspension system 3 via a steering linkage 24. One end of the steering drive shaft 22 is connected to an electronic power steering motor 25, and the other end of the steering drive shaft 22 is connected to a steering gear 26. The steering gear 26 is driven by a cross steering knuckle 27, and the cross steering knuckle 27 is driven by a steering tie rod 28. The other end of the steering tie rod 28 is connected to a throttle 29. The cross steering knuckle 27 and the steering tie rod 28 are mounted on the bogie 21.

[0055] In manual driving mode, the driver operates the throttle 29, which rotates the steering tie rod 28. The steering tie rod 28 drives the steering gear 26 through the cross steering knuckle 27, thereby rotating the steering drive shaft 22 and the steering fork 23. The steering fork 23 tilts the front suspension system 3 through the steering linkage 24, achieving steering of the unmanned vehicle. In automatic or remote-controlled driving mode, the electronic power steering motor 25 drives the steering drive shaft 22 to rotate, thus enabling automatic, remote-controlled, or manual driving. This steering system 2 has a compact structure and flexible steering.

[0056] Specifically, such as Figures 6-10 As shown, the front suspension system 3 includes a steering mechanism 31 that is rotatably connected to the vehicle frame assembly 1 and the steering system 2 respectively. A front suspension 32 is connected between the steering mechanism 31 and the vehicle frame assembly 1. A wheel hub drive shaft 33 is rotatably connected to the steering mechanism 31. A front tire 34 is rotatably connected to the wheel hub drive shaft 33. A front auxiliary drive mechanism 35 is also installed on the steering mechanism 31. The front auxiliary drive mechanism 35 includes a motor mounting bracket 351 fixed to the steering mechanism 31. An auxiliary motor 352 is installed on the motor mounting bracket 351. A one-way bearing 353 is connected to the rotating shaft of the auxiliary motor 352. A transmission mechanism 36 is connected between the one-way bearing 353 and the wheel hub drive shaft 33. The transmission mechanism 36 includes a front small sprocket 361, a front large sprocket 362 and a front chain 363. The front small sprocket 361 is mounted on a one-way bearing 353, and the front large sprocket 362 is mounted on a hub drive shaft 33. The front large sprocket 362 and the front small sprocket 361 are connected by the front chain 363.

[0057] A one-way bearing 353 connects the rotating shaft of the auxiliary motor 352 to the transmission mechanism 36, allowing the auxiliary motor 352 to transmit power to the transmission mechanism 36 via the one-way bearing 353, while the transmission mechanism 36 cannot transmit power to the auxiliary motor 352. When high torque output is required for tasks such as climbing hills or overcoming obstacles, the ratchet of the one-way bearing 353 engages, driving the one-way bearing 353 to rotate. The one-way bearing 353 then drives the front small sprocket 361 to rotate, which in turn drives the front large sprocket 362 via the front chain 363, thus rotating the wheel hub drive shaft 33 and the front tire 34. The addition of the front auxiliary motor 352 enhances the vehicle's overall power characteristics. When operating on flat roads, the ratchet of the one-way bearing 353 is not engaged, and the front tire 34 drives the wheel hub drive shaft 33 to rotate. The wheel hub drive shaft 33 then drives the front large sprocket 362, which in turn drives the front small sprocket 361 via the chain. At this time, the ratchet of the one-way bearing 353 is not engaged, so the one-way bearing 353 spins freely, avoiding driving the auxiliary motor 352 to rotate, which can reduce the driving resistance of the unmanned vehicle.

[0058] The steering mechanism 31 includes a steering knuckle 311, a motor mounting base 351 fixed to the steering knuckle 311, a central rod 312 in the middle of the steering knuckle 311, a wheel hub drive shaft 33 rotatably connected to the central rod 312, and spherical bearings 313 mounted at both the upper and lower ends of the steering knuckle 311. An A-type support arm 314 is connected to the upper spherical bearing 313. The front suspension 32 is connected between the A-type support arm 314 and the vehicle frame assembly 1. One connector of the A-type support arm 314 is rotatably connected to the vehicle frame assembly 1, and the other connector is rotatably connected to the output end of the steering system 2 of the unmanned vehicle. A brake disc is mounted on the wheel hub drive shaft 33, and a brake caliper is connected to the brake disc. When the steering system 2 of the unmanned vehicle pulls the A-type support arm 314 to rotate, the steering knuckle 311 drives the wheel hub drive shaft 33 to rotate via the central rod 312, thereby tilting the front tires 34 and achieving steering of the unmanned vehicle. The point where the type A support arm 314 rotates to connect with the vehicle frame assembly 1 is the rotation center during steering.

[0059] Specifically, such as Figure 11 and Figure 12 As shown, the rear suspension system 4 includes a rear wheel bracket 41 rotatably connected to the vehicle frame assembly 1, a rear suspension 42 connected between the rear wheel bracket 41 and the vehicle frame assembly 1, a main motor mounted on the vehicle frame assembly 1, a drive shaft 43 connected to the output end of the main motor, the drive shaft 43 rotatably connected to the rear wheel bracket 41, and a rear small sprocket 44 connected to the drive shaft 43; it also includes a spindle 45, a rotating flange assembly 46 rotatably connected to the spindle 45, a rear tire 47 and a rear large sprocket 48 mounted on the rotating flange assembly 46, and the rear small sprocket 44 and the rear large sprocket 48 connected by a chain drive.

[0060] When the main motor drives the drive shaft 43 to rotate, the small rear sprocket 44 on the drive shaft 43 drives the large rear sprocket 48 to rotate via the rear chain, thereby rotating the flange assembly 46 and driving the rear tire 47 to rotate. This invention drives the rear tire 47 through rear chain transmission, thus enabling the unmanned vehicle to move. It can transmit a large torque and has a relatively simple structure.

[0061] The rear wheel bracket 41 includes a rear swingarm 411, which is rotatably connected to the vehicle frame assembly 1. A drive shaft 43 is rotatably connected to the rear swingarm 411. Two tensioning mechanisms 412 are mounted on the rear swingarm 411, and a spindle 45 is installed between the two tensioning mechanisms 412. The tensioning mechanisms 412 can adjust the distance between the spindle 45 and the drive shaft 43, thereby ensuring the rear chain is tensioned and preventing it from loosening or falling off, thus guaranteeing reliable transmission.

[0062] A rear brake disc 49 is also installed on the rear sprocket 48. The rear brake disc 49 can brake the rear tire 47.

[0063] Specifically, such as Figure 13 and Figure 14 As shown, the motion mechanism 5 includes a mounting platform 51, on which a lifting mechanism 52 is mounted; the lifting mechanism 52 includes an electric push rod 521 rotatably connected to the mounting platform 51, an intermediate shaft 522 rotatably connected to the piston rod of the electric push rod 521, both ends of the intermediate shaft 522 are hinged to transverse connecting rods 523, both ends of the transverse connecting rods 523 are hinged to longitudinal connecting rods 524, one end of the longitudinal connecting rod 524 is hinged to the mounting platform 51, and the other end of the longitudinal connecting rod 524 is hinged to the helipad 6.

[0064] The helipad 6, mounting platform 51, and two longitudinal connecting rods 524 on the same side form a quadrilateral structure, thus providing stable support for the helipad 6 on both sides of the intermediate shaft 522. The electric push rod 521 controls the deformation of the two quadrilateral structures via the intermediate shaft 522, allowing the helipad 6 to be pushed out or retracted at an angle. When the helipad 6 is pushed out, it avoids other structures of the unmanned vehicle, facilitating the takeoff and landing of the drone 7 and reducing takeoff and landing time. When the helipad 6 is retracted, it and the drone 7 can approach other structures of the unmanned vehicle, making the unmanned vehicle structure more compact.

[0065] Specifically, such as Figure 15 and Figure 16As shown, the locking mechanism 8 is provided on the helipad 6 with two lateral moving rods 81 and two longitudinal moving rods 82. The two lateral moving rods 81 and the two longitudinal moving rods 82 synchronously converge towards the center or synchronously disperse outward. The two lateral moving rods 81 and the two longitudinal moving rods 82 are connected to a locking drive mechanism 83. The helipad 6 is provided with several laterally arranged and several longitudinally arranged limiting grooves 61. One end of the lateral moving rod 81 connected to the lateral transmission nut 833 passes through the laterally arranged limiting groove 61, and the longitudinal transmission rod 836 passes through the longitudinally arranged limiting groove 61.

[0066] The locking drive mechanism 83 drives two lateral movement rods 81 and two longitudinal movement rods 82 to move synchronously. When the two lateral movement rods 81 and two longitudinal movement rods 82 converge towards the center simultaneously, the bottom of the drone 7 is locked from four directions. A laterally arranged limiting groove 61 limits the lateral movement rods 81, and a longitudinally arranged limiting groove 61 limits the longitudinal movement rods 82. When the two lateral movement rods 81 and two longitudinal movement rods 82 are driven by a single locking drive mechanism 83, they can be set to reach their locking limit positions simultaneously. Thus, the two lateral movement rods 81 and two longitudinal movement rods 82 accurately limit the bottom of the drone 7 from four directions. Within the space defined by the locking limit positions of the two lateral movement rods 81 and two longitudinal movement rods 82, a charging contact 62 is provided for each charging head 74 of the drone 7, so that each charging head 74 is reliably charged when the drone 7 is precisely locked and positioned.

[0067] The present invention uses two horizontal moving rods 81 and two vertical moving rods 82 to push the four charging devices of the drone 7 to the charging contact 62 position, so that the initial positioning accuracy of the drone 7 is not high, and the drone 7 can land quickly.

[0068] The locking drive mechanism 83 includes a locking motor 831 installed on one side of the helipad 6. Screws 832 are rotatably installed on both the front and rear sides of the helipad 6. One end of one screw 832 is connected to the output end of the locking motor 831. The two helical sections of the screw 832 are opposite in direction. A transverse transmission nut 833 is connected to both helical sections of the screw 832. A transverse movement rod 81 is connected between the transverse transmission nut 833 on the front screw 832 and the transverse transmission nut 833 on the rear screw 832. Both ends of the lead screw 832 are equipped with synchronous belt pulleys 834. The synchronous belt pulleys 834 on the front lead screw 832 and the synchronous belt pulleys 834 on the rear lead screw 832 are connected by a synchronous belt 835. The upper and lower sides of the synchronous belt 835 are connected with longitudinal transmission rods 836. The longitudinal movement rod 82 is connected between the longitudinal transmission rod 836 on the left synchronous belt 835 and the longitudinal transmission rod 836 on the right synchronous belt 835.

[0069] Because the two helical sections of the lead screw 832 are in opposite directions, the locking motor 831 drives the lead screw 832 to rotate. The two transverse transmission nuts 833 on the same lead screw 832 move in opposite directions, causing the two transverse motion rods 81 to move in opposite directions, thus locking or releasing the bottom of the drone 7 laterally. When the two lead screws 832 rotate, the synchronous belt 835 moves under the drive of the synchronous belt pulley 834, thereby driving the two longitudinal transmission rods 836 to move. Since the two longitudinal transmission rods 836 are connected to the upper and lower sides of the synchronous belt 835 respectively, the two longitudinal transmission rods on the same synchronous belt 835 move in opposite directions, and consequently, the two longitudinal motion rods 82 move in opposite directions, thus locking or releasing the bottom of the drone 7 laterally.

[0070] like Figures 17-20 As shown, the drone 7 includes a motion component 71, a drone body 7, and a landing gear 73. The landing gear 73 includes two base poles, each with a charging head 74 mounted at both ends. The charging head 74 includes a charging mounting base 741, with a spring 742 connected to the underside of the mounting base 741, and a charging copper plate 743 connected to the other end of the spring 742. Charging contacts 62 on the helipad 6 match the charging copper plate 743, and a top plate 821 is also provided on the helipad 6 to press the charging head 74 firmly.

[0071] The top plate 821 presses the charging mounting base 741 firmly, thereby compressing the spring 742 and pressing the charging copper sheet 743 against the charging contact 62 on the landing pad 6, ensuring reliable charging. When the drone 7 takes off, the top plate 821 is removed, and the charging copper sheet 743 can be smoothly separated from the charging contact 62, avoiding any impact on the take-off and landing of the drone 7 caused by the charging device.

[0072] A threaded screw 744 is threaded onto the charging copper plate 743. The head of the threaded screw 744 is fitted inside the charging mounting base 741, and the shaft of the threaded screw 744 is fitted inside the spring 742. The threaded screw 744 guides the spring 742, ensuring that the charging copper plate 743 is smoothly pressed against the charging contact 62, preventing the charging copper plate 743 from shifting during the pressing process. The charging copper plate 743 has a downwardly convex curved surface. When the charging copper plate 743 has a curved surface, the convex part of the charging copper plate 743 can make smooth contact with the charging contact 62, avoiding poor contact problems. The charging mounting base 741 has a curved surface with an opening at the bottom. The charging copper plate 743 is fitted inside the charging mounting base 741. An end cap 745 is connected to the charging mounting base 741. The end cap 745 and the charging mounting base 741 protect the charging copper plate 743.

[0073] The top plate 821 is located on top of the longitudinal motion rod 82. When the longitudinal motion rod 82 locks the charging head 74 of the drone 7, the top plate 821 on the longitudinal motion rod 82 moves above the charging head 74, thereby restricting the charging head 74 between the top plate 821 and the landing pad 6, thus achieving reliable locking of the drone 7.

[0074] The bottom surface of the top plate 821 is inclined, and one side of the top of the charging mounting base 741 is also inclined. When the drone 7 is locked, the inclined surface of the charging mounting base 741 presses against the inclined surface of the top plate 821. When both the bottom surface of the top plate 821 and one side of the charging head 74 are inclined, as the top plate 821 moves toward the charging head 74, the inclined surface of the top plate 821 gradually presses against the inclined surface of the charging head 74, further improving the contact effect between the charging copper sheet 743 and the charging contact 62.

[0075] like Figure 20 and Figure 21 As shown, the vehicle frame assembly 1 is also provided with a battery quick-release mechanism 9. The battery quick-release mechanism 9 includes a mounting base 91, a mounting frame 92 connected to the mounting base 91, an inlet base 93 connected to the inlet side of the mounting base 91, a limiting block 94 installed on the side of the mounting base 91 away from the inlet base 93, and a fixing component 95 for clamping the battery detachably connected to the inlet base 93. The battery is installed between the mounting base 91, the mounting frame 92, the limiting block 94 and the fixing component 95.

[0076] The guide frame 93 smoothly guides the battery into the space defined by the mounting frame 91, mounting frame 92, and limiting block 94, and it is then secured by the fixing component 95. The quick-release structure is simple, making battery installation and removal convenient. The fixing component 95 is detachably connected to the guide frame 93. When different battery sizes are needed, the corresponding size fixing component 95 can be replaced, ensuring that batteries of different sizes can be reliably secured and allowing for quick installation and removal.

[0077] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.

Claims

1. A multi-functional unmanned vehicle, characterized in that: The vehicle includes a frame assembly (1), on which a steering system (2), a front suspension system (3), and a rear suspension system (4) are respectively installed. The output end of the steering system (2) is connected to the front suspension system (3). The frame assembly (1) is also connected to a motion mechanism (5). The output end of the motion mechanism (5) is connected to a landing pad (6). The motion mechanism (5) pushes out or retracts the landing pad (6). The landing pad (6) is used to park a drone (7). The landing pad (6) is equipped with a charging contact (62) for charging the drone (7) and a locking mechanism (8) for locking and positioning the drone (7). The steering system (2) includes a bogie (21) connected to the vehicle frame assembly (1), a steering drive shaft (22) rotatably connected to the bogie (21), a steering fork (23) connected to the steering drive shaft (22), and the steering fork (23) rotatably connected to the front suspension system (3) via a steering linkage (24); one end of the steering drive shaft (22) is connected to an electronic power steering motor (25), the other end of the steering drive shaft (22) is connected to a steering gear (26), the steering gear (26) is driven by a cross steering knuckle (27), the cross steering knuckle (27) is driven by a steering tie rod (28), the other end of the steering tie rod (28) is connected to a throttle (29), and the cross steering knuckle (27) and the steering tie rod (28) are mounted on the bogie (21); The locking mechanism (8) is provided on the helipad (6) with two lateral moving rods (81) and two longitudinal moving rods (82). The two lateral moving rods (81) and two longitudinal moving rods (82) move towards the center or move outwards simultaneously. The two lateral moving rods (81) and two longitudinal moving rods (82) are connected to a locking drive mechanism (83). The helipad (6) is provided with several lateral and longitudinally arranged limiting grooves (61). One end of the lateral moving rod (81) connected to the lateral transmission nut (833) passes through the laterally arranged limiting groove (61), and the longitudinal transmission rod (836) passes through the longitudinally arranged limiting groove (61). The landing gear (73) of the UAV (7) is equipped with a charging head (74), which includes a charging mounting base (741). A spring (742) is connected to the lower side of the charging mounting base (741), and a charging copper plate (743) is connected to the other end of the spring (742). The charging contacts (62) on the landing pad (6) are matched with the charging copper plate (743). The landing pad (6) is also equipped with a top plate (821) for pressing the charging head (74). The bottom surface of the top plate (821) is inclined, and one side of the top of the charging mounting base (741) is inclined; when locking the drone (7), the inclined surface of the charging mounting base (741) is pressed against the inclined surface of the top plate (821).

2. The multi-functional unmanned vehicle according to claim 1, characterized in that: The vehicle frame assembly (1) is connected to the vehicle shell (11), and the vehicle shell (11) is equipped with a binocular camera (12) and a fisheye camera (13); the vehicle frame assembly (1) includes a frame (14), and the frame (14) is equipped with an antenna (15), a lidar (16), a loudspeaker (17), a screen (18) and a gyroscope (19), and the frame (14) is also connected to an integrated audio-visual monitoring device (142) via a lifting rod (141).

3. The multi-functional unmanned vehicle according to claim 1, characterized in that: The front suspension system (3) includes a steering mechanism (31) that is rotatably connected to the vehicle frame assembly (1) and the steering system (2) respectively. A front suspension (32) is connected between the steering mechanism (31) and the vehicle frame assembly (1). A wheel hub drive shaft (33) is rotatably connected to the steering mechanism (31). A front tire (34) is rotatably connected to the wheel hub drive shaft (33). A front auxiliary drive mechanism (35) is also installed on the steering mechanism (31). The front auxiliary drive mechanism (35) includes a motor mounting bracket (351) fixed on the steering mechanism (31). An auxiliary motor (352) is installed on the motor mounting bracket (351). A one-way bearing (353) is connected to the rotating shaft of the auxiliary motor (352). A transmission mechanism (36) is connected between the one-way bearing (353) and the wheel hub drive shaft (33).

4. The multi-functional unmanned vehicle according to claim 1, characterized in that: The rear suspension system (4) includes a rear wheel bracket (41) rotatably connected to the vehicle frame assembly (1), a rear suspension (42) connected between the rear wheel bracket (41) and the vehicle frame assembly (1), a main motor mounted on the vehicle frame assembly (1), a drive shaft (43) connected to the output end of the main motor, the drive shaft (43) rotatably connected to the rear wheel bracket (41), and a rear small sprocket (44) connected to the drive shaft (43); it also includes a spindle (45), a rotating flange assembly (46) rotatably connected to the spindle (45), a rear tire (47) and a large sprocket mounted on the rotating flange assembly (46), and the rear small sprocket (44) and the rear large sprocket (48) connected by a rear chain drive.

5. A multi-functional unmanned vehicle according to claim 1, characterized in that: The motion mechanism (5) includes an installation platform (51), on which a lifting mechanism (52) is installed; the lifting mechanism (52) includes an electric push rod (521) rotatably connected to the installation platform (51), an intermediate shaft (522) rotatably connected to the piston rod of the electric push rod (521), both ends of the intermediate shaft (522) are hinged to a transverse connecting rod (523), both ends of the transverse connecting rod (523) are hinged to a longitudinal connecting rod (524), one end of the longitudinal connecting rod (524) is hinged to the installation platform (51), and the other end of the longitudinal connecting rod (524) is hinged to the helipad (6).

6. A multi-functional unmanned vehicle according to any one of claims 1 to 5, characterized in that: The vehicle frame assembly (1) is also provided with a battery quick-release mechanism (9). The battery quick-release mechanism (9) includes a mounting base (91), a mounting frame (92) is connected to the mounting base (91), an inlet base (93) is connected to the inlet side of the mounting base (91), a limit block (94) is installed on the side of the mounting base (91) away from the inlet base (93), and a fixing component (95) for clamping the battery is detachably connected to the inlet base (93). The battery is installed between the mounting base (91), the mounting frame (92), the limit block (94) and the fixing component (95).

Images