Unmanned aerial vehicle consignment device

Abstract

The invention relates to an unmanned aerial vehicle consignment device. According to the technical scheme, the device comprises a U-shaped frame, the left side arm and the right side arm of the U-shaped frame are of cavity structures, the front end and the rear end in each cavity structure are each rotationally provided with a gear, the two sides of each gear are each meshed with a rack slidably installed on the U-shaped frame, and the two sets of racks stretch out of the front end and the rear end of the U-shaped frame to form telescopic ends; the end of each second rack is rotationally provided with a first rotating wheel, and the left side and the right side of the U-shaped frame are each provided with two second rotating wheels. The consignment device is pushed to the position below the plant protection unmanned aerial vehicle through the U-shaped frame, and the unmanned aerial vehicle is supported through the supporting device of the four unmanned aerial vehicle supporting arms composed of the telescopic rods, the springs, the electric cylinders and the U-shaped supporting plates. And the supported unmanned aerial vehicle base is limited through the pressing plate, so that racking and damping installation of the unmanned aerial vehicle are achieved.

Description

Technical Field

[0001] The present invention relates to the field of unmanned aerial vehicle (UAV) supporting equipment, and in particular to a UAV consignment device. Background Art

[0002] Drones, especially large plant protection drones, must be equipped with a shipping rack when in use. The reasons are: First, plant protection drones are heavy, and medium and large drones usually weigh more than 50KG, making them difficult to carry by hand. Second, plant protection drones must be transported to the fields before work by a small truck. During the process of getting on and off the truck, it is difficult to get the drone on and off the truck without the assistance of a bracket. Third, plant protection drones are inevitably transported through potholes when being transported by a small truck. Without a bracket to fix and absorb shock, the drone is likely to be bumped and damaged during transportation. Therefore, a plant protection drone bracket is a necessary equipment.

[0003] The common drone brackets at present include the application number: 202121863872.2, and the patent name: A drone bracket, which fixes the base of the drone on a bracket with spring shock absorbers, and independently realizes the fixation and shock absorption of the drone during transportation. However, this type of bracket requires the drone to be lifted onto the bracket and locked first. In the process of single-person operation, it is also difficult for medium and large plant protection drones to be lifted onto the bracket. Therefore, for the plant protection drone bracket, the technical problems to be solved include: the mounting of the drone, the loading and unloading of the truck with the drone bracket, and how to achieve the shock absorption and fixation of the drone on the bracket, and the integration of the three technical problems on one bracket at one time. This is the difficulty that the plant protection drone bracket urgently needs to be upgraded and improved. For this reason, the present invention came into being and effectively solved the above problems. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a drone shipping device, which simultaneously realizes the mounting of the drone, the loading and unloading of the truck with the drone bracket, and the shock-absorbing fixation of the drone on the bracket.

[0005] The technical solution to the problem includes a U-shaped frame, wherein the left and right side arms of the U-shaped frame are cavity structures, and a gear is rotatably installed at the front and rear ends of each cavity structure, and the two gears in the cavity structure rotate synchronously, and two sides of the gear are respectively meshed with a rack slidably installed on the U-shaped frame, the rack placed on the outside is the first rack, and the ends of the two first racks pass through the bottom of the U-shaped frame and are fixed to form a whole through a rotating shaft, and a first rotating wheel is rotatably installed at each end of the rotating shaft, and the rack placed on the inside is the second rack, and the end of the second rack extends out from the open end of the U-shaped frame, and a first rotating wheel is rotatably installed at the end of each second rack, and two second rotating wheels are respectively installed on the left and right sides of the U-shaped frame, and the diameter of the second rotating wheel is greater than the diameter of the first rotating wheel.

[0006] A vertical telescopic rod is rotatably installed at each of the four corners of the upper end of the U-shaped frame. A spring is mounted on the telescopic rod. A vertical electric cylinder is installed on the upper end of the telescopic rod. The four electric cylinders are synchronously extended and retracted. An arc-shaped support plate is fixed to the upper end of the electric cylinder. A pressure plate is slidably installed on the side arm of the U-shaped frame.

[0007] In order to realize more convenient driving of the U-shaped frame, a push handle is fixed on the upper end of the bottom plate of the U-shaped frame.

[0008] In order to realize the synchronous rotation of the two gears in the cavity structure, a pulley corresponding to the gear is provided at the bottom of the U-shaped frame side arm, and the pulley is fixedly connected to the gear via the shaft, and the pulleys on the same U-shaped frame side arm are connected via a belt.

[0009] In order to achieve the connection of the end of the second rack, a connecting rod is rotatably installed below the end of one of the second racks, a torsion spring is installed at the hinge position of the connecting rod, and a U-shaped slot that can be engaged with the connecting rod is provided below the end of the other second rack, and a positioning ring is provided at the bottom of the side wall of the U-shaped frame hinged to one side of the connecting rod.

[0010] In order to facilitate the installation of the first rotating wheel and the second rotating wheel, the axes of the first rotating wheel and the second rotating wheel are at the same horizontal height, and the first rotating wheel does not contact or interfere with the second rotating wheel after approaching the second rotating wheel.

[0011] In order to realize the adjustable rotation of the telescopic rod, a positioning protrusion is fixed to the bottom of the telescopic rod, and a positioning bolt is screwed on the positioning protrusion.

[0012] In order to achieve outward expansion of the support point, a cross bar is fixed to the upper end of the telescopic rod, the electric cylinder is fixed above the free end of the cross bar, a slide groove is provided on the telescopic rod, an inclined support rod is fixed at the free end of the cross bar, a slider is fixed at the free end of the support rod, and the slider is slidably installed in the slide groove.

[0013] In order to achieve the installation and fixation of the pressure plate, each of the side arms is provided with two sleeves arranged at intervals, the sleeve cross-section is rectangular, a pressure plate is slidably installed in each sleeve, and the outer ends of the two pressure plates on the same U-shaped frame side arm are fixed into a whole through a connecting plate.

[0014] Advantages of the present invention: 1. The present invention pushes the transport device to the bottom of the plant protection UAV through a U-shaped frame, and supports the UAV through a supporting device of the UAV support arm composed of four telescopic rods, springs, electric cylinders and U-shaped supporting plates. The supported UAV base is limited by a pressure plate, thereby realizing the mounting and shock-absorbing installation of the UAV.

[0015] 2. Through the driving cooperation of the first rack and the second rack-gear and pulley group, when one set of racks is pulled out and retracted, the other set of racks can be synchronously controlled. This structure upgrades the extension and retraction of the bracket from the traditional two-sided operation to a single-sided operation, making its operation more convenient and efficient.

[0016] 3. The connecting rod on the second rack does not contact the card slot during the process of loading the drone, which can facilitate the rapid placement of the drone. After the placement is completed, the connecting rod is manually engaged with the card slot during the loading process, so that the two racks can form a whole, avoiding uneven force during the loading process and causing the drone to tip over.

[0017] 4. The present invention solves the problems of mounting, loading, shock-absorbing and fixing large-scale plant protection UAVs through a set of equipment, which not only greatly improves the efficiency of UAV consignment, but also improves the safety of UAV consignment. In addition, the device has a simple and efficient structure and is suitable for wide promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the rack of the present invention when it is extended.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the rack of the present invention when it is retracted.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure displayed at the bottom of the U-shaped frame of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure displayed inside the U-shaped frame cavity structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the support arm supporting device of the present invention.

[0023] In the figure: U-shaped frame -1, gear -2, first rack -3, first rotating wheel -4, second rack -5, second rotating wheel -6, telescopic rod -7, spring -8, electric cylinder -9, arc support plate -10, pressure plate -11, push handle -12, connecting rod -13, torsion spring -14, slot -15, positioning collar -16, positioning protrusion -17, positioning bolt -18, cross bar -19, slide groove -20, support rod -21, sleeve -22. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Example

[0026] Depend on Figures 1 to 5 It can be seen that the present invention includes a U-shaped frame 1, two second rotating wheels 6 are respectively installed on the left and right sides of the U-shaped frame 1, and a push handle 12 is fixed to the upper end of the bottom plate of the U-shaped frame 1. The left and right side arms of the U-shaped frame 1 are cavity structures, and a gear 2 is rotatably installed at the front and rear ends of each cavity structure. The bottom of the side arm of the U-shaped frame 1 is provided with a pulley corresponding to the gear 2 one by one, and the pulley is fixedly connected to the gear 2 via an axis. The pulleys on the same side arm of the U-shaped frame 1 are connected via a belt to realize the synchronous rotation of the two gears 2 in the cavity structure.

[0027] The two sides of the gear 2 are respectively meshed with a rack slidably mounted on the U-shaped frame 1, the rack placed on the outside is the first rack 3, the ends of the two first racks 3 pass through the bottom of the U-shaped frame 1 and are fixed as a whole through the rotating shaft, and a first rotating wheel 4 is rotatably mounted on each end of the rotating shaft, the rack placed on the inside is the second rack 5, the end of the second rack 5 extends from the open end of the U-shaped frame 1, and a first rotating wheel 4 is rotatably mounted on the end of each second rack 5, and the diameter of the second rotating wheel 6 is larger than that of the first rotating wheel 4. The axes of the first rotating wheel 4 and the second rotating wheel 6 are at the same horizontal height, and the first rotating wheel 4 does not contact or interfere with the second rotating wheel 6 after approaching the second rotating wheel 6.

[0028] A connecting rod 13 is rotatably installed below the end of one of the second racks 5, and a torsion spring 14 is installed at the hinge position of the connecting rod 13. A U-shaped slot 15 that can be engaged with the connecting rod 13 is provided below the end of the other second rack 5, and a positioning ring 16 is provided at the bottom of the side wall of the U-shaped frame 1 to which one side of the connecting rod 13 is hinged.

[0029] A vertical telescopic rod 7 is rotatably mounted at each of the four corners of the upper end of the U-shaped frame 1. A positioning protrusion 17 is fixed to the bottom of the telescopic rod 7, and a positioning bolt 18 is screwed onto the positioning protrusion 17. A spring 8 is mounted on the telescopic rod 7. A cross bar 19 is fixed to the upper end of the telescopic rod 7. The electric cylinder 9 is fixed above the free end of the cross bar 19. A slide 20 is provided on the telescopic rod 7. An inclined support rod 21 is fixed to the free end of the cross bar 19. A slider is fixed to the free end of the support rod 21. The slider is slidably mounted in the slide 20. The four electric cylinders 9 are synchronously extended and retracted. The electric cylinders 9 are powered by batteries and controlled to extend and retract by synchronous switches. An arc-shaped support plate 10 is fixed to the upper end of the electric cylinders 9.

[0030] A pressure plate 11 is slidably mounted on the side arm of the U-shaped frame 1, and each of the side arms is provided with two sleeves 22 arranged at intervals, the cross-section of the sleeve 22 is rectangular, and a pressure plate 11 is slidably mounted in each sleeve 22. The outer ends of the two pressure plates 11 on the side arm of the same U-shaped frame 1 are fixed into a whole through a connecting plate.

[0031] The working process and principle of the present invention are shown as follows: The process of placing the drone on the ground: first, retract the first rack 3 and the second rack 5 into the cavity structure of the side arm of the U-shaped frame 1. In this process, the rack on one side can be driven, that is, the first rack 3 is driven alone or the second rack 5 is driven alone. In this process, it is preferred to drive the second rack 5 alone. In the specific operation, when the rack is extended, the connecting rod 13 is rotated and driven to be parallel to the second rack 5. At this time, the second rack 5 is pushed inward to achieve the retraction of the second rack 5. In this process, the connecting rod 13 is inserted into the positioning ring 16 and is limited. When the second rack 5 retracts, the first rack 3 is driven through the gear 2 and the pulley group, and the other second rack 5 is retracted. The retracted first runner 4 is close to the second runner 6 but does not contact the second runner 6. Since the diameter of the first runner 4 is smaller than that of the second runner 6, the first runner 4 does not touch the ground.

[0032] At this time, the worker pushes the push handle 12 so that the U-shaped frame 1 half surrounds the drone. During this process, the pressure plate 11 must be retracted so as not to interfere with the drone. After completion, the position of the arc-shaped support plate 10 is adjusted to correspond to the four drone arms, and the drone is lifted as a whole by driving the electric cylinder 9 to extend. After lifting, the pressure plate 11 is driven to be inserted above the drone base, and the electric cylinder 9 is driven to extend again until the pressure plate 11 presses the drone base. At the same time, the spring 8 is compressed, and the drone is put on the shelf.

[0033] The angle adjustment of the telescopic rod 7 is achieved by rotating the telescopic rod 7 after tightening the positioning screw. The telescopic rod 7 can only be extended and retracted and the sleeves cannot rotate relative to each other. A rectangular cross-section telescopic rod 7 is preferred. The support rod 21 provides auxiliary support for the electric cylinder 9 extending outward, and the stability of the entire device is greatly improved.

[0034] UAV boarding: In the above state, the UAV is transported to the side of the transport vehicle via the consignment device, and the second rack 5 is pulled out. The second rack 5 and the first rack 3 are stretched synchronously under the linkage of the gear 2 and the pulley group. After the second rack 5 is pulled out, under the action of the torsion spring 14, the connecting rod 13 is reset and rotated to be placed in the slot 15. At this time, the two ends of the second rack 5 are fixedly connected. The bottom rod of the U-shaped frame 1 is facing the transport vehicle, and the end of the first rack 3 is lifted and placed on the transport vehicle. At this time, the entire bracket is tilted, and then the end of the second rack 5 is lifted to the level of the consignment device and continues until the end lifted by hand is higher than the end placed on the transport vehicle. Then, the consignment device is pushed into the carriage so that the second rotating wheel 6 contacts the carriage and provides support. After completion, the second rack 5 is pushed back until the racks on both sides are retracted. At this time, the consignment device is mechanically fixed in the carriage.

[0035] The drone gets off the vehicle and takes the opposite steps of getting on the vehicle, unfastens the mechanical fixation of the consignment device, pulls out the second rack 5, and the first rack 3 is also pulled out in conjunction. After completion, lift the consignment device to tilt it until the first runner 4 at the end of the first rack 3 touches the car, and after the consignment device is pulled out of the car as a whole, slowly lower the second rack 5 until the first runner 4 at its end touches the ground. It is worth noting that the rack has a small pull-out resistance in the horizontal state and a large resistance when tilted. Therefore, the rack will not retract by itself in the tilted state. At this time, remove the end of the first rack 3 from the car. After the device is horizontal, retract the first rack 3 and the second rack 5. During the retraction process, remove the connecting rod 13 from the slot 15 and limit it with the positioning collar 16.

[0036] To remove the UAV, after the electric cylinder 9 is controlled to retract, the UAV bracket touches the ground, and after the pressing plate 11 is retracted, the U-shaped frame 1 can be removed from the UAV, and the plant protection operation can be carried out at this time.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drone consignment device, characterized in that: It comprises a U-shaped frame, the left and right side arms of the U-shaped frame are cavity structures, the front and rear ends of each cavity structure are rotatably installed with a gear, the two gears in the cavity structure rotate synchronously, and the two sides of the gear are respectively meshed with a rack slidably installed on the U-shaped frame, the rack placed on the outside is the first rack, the ends of the two first racks pass through the bottom of the U-shaped frame and are fixed to form a whole through the rotating shaft, the two ends of the rotating shaft are rotatably installed with a first rotating wheel, the rack placed on the inside is the second rack, the end of the second rack extends from the open end of the U-shaped frame, and the end of each second rack is rotatably installed with a first rotating wheel, and two second rotating wheels are respectively installed on the left and right sides of the U-shaped frame, and the diameter of the second rotating wheel is larger than the diameter of the first rotating wheel; A vertical telescopic rod is rotatably installed at each of the four corners of the upper end of the U-shaped frame. A spring is mounted on the telescopic rod. A vertical electric cylinder is installed on the upper end of the telescopic rod. The four electric cylinders are synchronously extended and retracted. An arc-shaped support plate is fixed to the upper end of the electric cylinder. A pressure plate is slidably installed on the side arm of the U-shaped frame.

2. The drone consignment device according to claim 1, characterized in that: A push handle is fixed on the upper end of the bottom plate of the U-shaped frame.

3. The drone consignment device according to claim 1, characterized in that: The bottom of the U-shaped frame side arm is provided with a pulley corresponding to the gear one by one, the pulley is fixedly connected with the gear through the shaft, and the pulleys on the same U-shaped frame side arm are connected through a belt.

4. The drone shipping device according to claim 1, characterized in that: A connecting rod is rotatably installed below the end of one of the second racks, and a torsion spring is installed at the hinge position of the connecting rod. A U-shaped slot that can be engaged with the connecting rod is provided below the end of the other second rack, and a positioning ring is provided at the bottom of the side wall of the U-shaped frame hinged to one side of the connecting rod.

5. The drone shipping device according to claim 1, characterized in that: The axes of the first rotating wheel and the second rotating wheel are at the same horizontal height, and the first rotating wheel does not contact or interfere with the second rotating wheel after approaching the second rotating wheel.

6. The drone shipping device according to claim 1, characterized in that: A positioning protrusion is fixed on the bottom of the telescopic rod, and a positioning bolt is screwed on the positioning protrusion.

7. The drone shipping device according to claim 1, characterized in that: A cross bar is fixed on the upper end of the telescopic rod, the electric cylinder is fixed above the free end of the cross bar, a slide groove is provided on the telescopic rod, an inclined support rod is fixed at the free end of the cross bar, a slider is fixed at the free end of the support rod, and the slider is slidably installed in the slide groove.

8. The drone shipping device according to claim 1, characterized in that: Each of the side arms is provided with two sleeves arranged at intervals, the sleeve cross-section is rectangular, a pressing plate is slidably installed in each sleeve, and the outer ends of the two pressing plates on the same U-shaped frame side arm are fixed into a whole through a connecting plate.

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