UAV hydrogen cylinder replacement mechanism and UAV hydrogen cylinder rapid gas replacement structure

Abstract

The present invention relates to the field of hydrogen energy and discloses a drone hydrogen cylinder replacement mechanism and a drone hydrogen cylinder rapid ventilation structure. The drone hydrogen cylinder replacement mechanism comprises: a base; a positioning assembly, which positions the drone on the base; a bottle delivery assembly, which receives and transfers a released gas cylinder from the drone downward; and a shift assembly, which receives a gas cylinder transferred by the bottle delivery assembly and transfers a new gas cylinder to the bottle delivery assembly. The drone hydrogen cylinder replacement mechanism is configured with a positioning assembly, a bottle delivery assembly, and a shift assembly. The positioning assembly realizes the positioning of the drone, thereby accurately positioning the drone's gas cylinder. Then, through the coordinated actions of the bottle delivery assembly and the shift assembly, the drone hydrogen cylinder can be replaced efficiently and conveniently.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen energy, and in particular to a replacement mechanism for a hydrogen cylinder of a drone and a quick ventilation structure for a hydrogen cylinder of a drone. Background Art

[0002] Fuel cells are a new type of chemical battery. The current mainstream method uses hydrogen as fuel to combine with oxygen to generate electricity. Fuel cells have the advantages of high energy density and environmental friendliness, and their application range is very wide. Currently, there are rotary-wing drones that use fuel cells as energy sources. When installing the fuel cell, the drone needs to place a hydrogen cylinder under the base to replenish hydrogen during operation. When replacing hydrogen cylinders, the ventilation action is usually performed manually or by a multi-axis robot that requires teaching settings. This has problems such as low efficiency and complex procedures. It can be seen that the current technology related to replacing hydrogen cylinders in drones still has considerable room for improvement. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] The present invention provides a hydrogen cylinder replacement mechanism for a drone, comprising:

[0005] base;

[0006] A positioning component, which positions the drone on the base;

[0007] A bottle delivery assembly, which is used to receive the loosened gas cylinders on the drone and transfer them downward;

[0008] The shifting assembly is used to receive the gas cylinder transferred by the bottle sending assembly and move the new gas cylinder to the bottle sending assembly.

[0009] The beneficial effects of the present invention are as follows: the drone hydrogen cylinder replacement mechanism is configured with a positioning component, a bottle feeding component and a shifting component. The positioning component realizes the positioning of the drone and thus accurately positions the drone's cylinder. Then, the bottle feeding component and the shifting component cooperate to efficiently and conveniently realize the replacement of the drone's hydrogen cylinder.

[0010] As some sub-solutions of the above technical solution, the positioning assembly includes a landing plate arranged above the base, the landing plate is provided with a first foot groove and a second foot groove for positioning the drone, and the middle of the landing plate is also provided with a gas cylinder through hole.

[0011] As some sub-solutions of the above technical solution, the bottle delivery assembly includes a first swing arm, a second swing arm, a first pinching wheel, a second pinching wheel, and a clamping driver. The first swing arm and the second swing arm are respectively located on both sides of the gas cylinder through hole. The first swing arm and the second swing arm are both rotatably connected to the landing plate. The first pinching wheel is rotatably connected to the first swing arm, and the second pinching wheel is rotatably connected to the second swing arm. A pinching groove for clamping and transporting the gas cylinder up and down is formed between the first pinching wheel and the second pinching wheel. The clamping driver is used to drive the first swing arm and the second swing arm to swing toward or away from each other.

[0012] As some sub-solutions of the above technical solution, a front baffle and a rear baffle are further provided on the first swing arm, and a positioning groove for positioning is formed between the front baffle and the rear baffle.

[0013] As some sub-solutions of the above technical solution, the clamping driver is a double-rod cylinder, and the clamping driver includes a first driving rod and a second driving rod, and the first driving rod and the second driving rod are hinged to the first swing arm and the second swing arm respectively.

[0014] As some sub-solutions of the above technical solution, the shifting assembly includes a rotary drive and a bottle seat, the rotary drive is located below the landing plate, the rotary drive is arranged on the base, the rotary drive drives the bottle seat connected to drive the bottle seat to fall down or stand up, and a bottle groove for positioning the gas cylinder is formed on the bottle seat.

[0015] As some sub-solutions of the above technical solution, a linear drive and a push plate are further provided at the bottom of the bottle trough, and the linear drive is drivably connected to the push plate to push the bottle body out of the bottle trough.

[0016] As some sub-solutions of the above technical solution, the linear drive is a cylinder.

[0017] The present invention also provides a rapid ventilation structure for a hydrogen cylinder of a drone, comprising:

[0018] A hydrogen tank replacement mechanism for a drone according to any of the above technical solutions;

[0019] A rotary-wing UAV is provided with a fuel cell at the bottom of the rotary-wing UAV, a gas cylinder socket is provided at the bottom side of the fuel cell, and a solenoid valve is provided at the gas cylinder socket, and the solenoid valve is used to lock or release the gas cylinder.

[0020] The drone hydrogen cylinder replacement mechanism of the present invention includes the drone hydrogen cylinder replacement mechanism of any of the above technical solutions, so it also has corresponding beneficial effects.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a structural diagram of an embodiment of a hydrogen cylinder replacement mechanism for a drone;

[0024] Figure 2 This is a schematic diagram of the structure of the hydrogen cylinder replacement mechanism of the drone when the cylinder is delivered to the rotary-wing drone by the cylinder delivery assembly;

[0025] Figure 3 This is a structural diagram of the first swing arm and the second swing arm of the bottle feeding assembly.

[0026] In the attached figure: 1-base; 20-rotor drone; 30-gas cylinder;

[0027] 200 - positioning assembly; 210 - landing plate; 211 - first foot groove; 212 - second foot groove; 213 - gas cylinder through hole;

[0028] 300 - bottle feeding assembly; 310 - first swing arm; 311 - front baffle; 320 - second swing arm; 330 - first pinch wheel; 340 - second pinch wheel; 350 - clamping drive;

[0029] 400-shift assembly; 410-rotational drive; 420-bottle seat; 421-bottle slot; 430-linear drive; 440-push plate. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, "several" means an indefinite quantity, "multiple" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, and "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" is solely for the purpose of distinguishing technical features and should not be understood to indicate or imply relative importance, or to implicitly indicate the number or order of the technical features indicated. "And / or" throughout the text represents three parallel solutions. For example, "A and / or B" means a solution where A satisfies, a solution where B satisfies, or a solution where both A and B satisfy.

[0033] In the description of the present invention, if there is a short sentence containing multiple parallel features, the attributive defines the closest feature. For example, "B, C, and E are arranged on A, and E is connected to D" means that B is arranged on A and E is connected to D, and does not constitute a limitation on C. However, attributives that express the relationship between features, such as "spaced arrangement" and "circular arrangement", do not fall into this category. If the word "all" is preceded by an attributive, it means that all features in the short sentence are limited. For example, "B, C, and D are all arranged on A" means that B, C, and D are all arranged on A. In a sentence with an omitted subject, the omitted subject is the subject of the previous sentence, that is, "B is arranged on A, including C" means that B is arranged on A and A includes C.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] The following combination Figures 1 to 3 Embodiments of the present invention are described.

[0036] This embodiment provides a rapid ventilation structure for hydrogen cylinders of a drone, which is mainly used to unload the gas cylinder 30 of the rotary-wing drone 20.

[0037] The UAV hydrogen cylinder rapid ventilation structure includes: a UAV hydrogen cylinder replacement mechanism and a rotor UAV 20. The rotor UAV 20 is provided with a fuel cell at the lower part, and a gas cylinder socket is provided on the lower side of the fuel cell. The gas cylinder socket is provided with a solenoid valve, which is used to lock or release the gas cylinder.

[0038] Among them, reference Figure 1 ,The drone hydrogen bottle replacement mechanism includes: a base 1, a bottle delivery assembly 300, and a shift assembly;

[0039] The positioning assembly 200 positions the drone on the base 1;

[0040] The bottle delivery assembly 300 is used to receive the loosened gas cylinders on the drone and transfer them downwards;

[0041] The shifting assembly is used to receive the gas cylinder transferred by the bottle delivery assembly 300 and transfer the new gas cylinder to the bottle delivery assembly 300.

[0042] The drone hydrogen cylinder replacement mechanism is configured with a positioning component 200, a bottle delivery component 300 and a shift component. The positioning component 200 realizes the positioning of the drone and thus accurately locates the drone's cylinder. Then, the bottle delivery component 300 and the shift component cooperate to efficiently and conveniently replace the drone's hydrogen cylinder.

[0043] Specifically, the positioning assembly 200 includes a landing plate 210 disposed above the base 1. The landing plate 210 is provided with a first foot groove 211 and a second foot groove 212 for positioning the drone. A gas cylinder through hole 213 is also provided in the center of the landing plate 210. When landing a rotary-wing drone on a complex landing surface, turbulent recoil airflow can easily lead to an unstable landing. Therefore, the positioning assembly 200 in this embodiment is equipped with a landing plate 210. The landing plate 210 provides a flat and relatively wide landing surface for the rotary-wing drone, preventing unstable landing caused by excessive cargo on the landing surface. The first foot groove 211 and the second foot groove 212 on the landing plate 210 provide clearance for the drone's gas cylinder to extend downward into the gas cylinder through hole 213. Together, the first foot groove 211, the second foot groove 212, and the gas cylinder through hole 213 achieve the desired positioning of the gas cylinder and the drone.

[0044] The bottle delivery assembly 300 includes a first swing arm 310, a second swing arm 320, a first pinching wheel 330, a second pinching wheel 340, and a clamping driver 350. The first swing arm 310 and the second swing arm 320 are respectively located on both sides of the gas cylinder through hole 213. The first swing arm 310 and the second swing arm 320 are both rotatably connected to the landing plate 210. The first pinching wheel 330 is rotatably connected to the first swing arm 310, and the second pinching wheel 340 is rotatably connected to the second swing arm 320. A pinching groove for clamping and transporting the gas cylinder up and down is formed between the first pinching wheel 330 and the second pinching wheel 340. The clamping driver 350 is used to drive the first swing arm 310 and the second swing arm 320 to swing toward or away from each other. The bottle delivery assembly 300 is used to clamp the gas cylinder in the pinching groove, and then drive the gas cylinder up and down through the rotation of the first pinching wheel 330 and the second pinching wheel 340, thereby removing the gas cylinder from the drone or delivering a new gas cylinder to the drone. Specifically, when the bottle delivery assembly 300 is transporting the gas cylinder, the clamping driver 350 is activated to drive the first swing arm 310 and the second swing arm 320 to rotate, thereby shrinking the pinching groove, so that the first pinching wheel 330 and the second pinching wheel 340 abut against the gas cylinder, allowing the first pinching wheel 330 and the second pinching wheel 340 to drive the gas cylinder to move up and down during rotation. When the gas cylinder needs to be released, the clamping driver 350 is activated in the reverse direction to release the gas cylinder. In this embodiment, after the gas cylinder is mounted on the rotary-wing drone 20 and the drone 20 lands on the landing plate 210, the drone 20's feet are respectively positioned in the first foot slot 211 and the second foot slot 212. The feet can still move within the first foot slot 211 and the second foot slot 212. A gap is left between the gas cylinder and the through-hole 213, ensuring that there is no interference between the drone and the landing plate 210 when the clamping actuator 350 drives the first swing arm 310 and the second swing arm 320 to clamp the gas cylinder for positioning. Thus, when the bottle delivery assembly 300 of this embodiment is in operation, the first swing arm 310 and the second swing arm 320 clamp inwardly, which also serves to position the gas cylinder and the drone as a whole. This reduces the accuracy requirements for landing the rotary-wing drone 20 and reduces the difficulty of operation and control. The bottle delivery assembly 300 of this embodiment simultaneously serves to position the rotary-wing drone 20 and the gas cylinder, as well as to quickly remove and release the gas cylinder. This streamlined structure efficiently achieves multiple functions, greatly improving the efficiency of gas cylinder replacement.

[0045] Furthermore, the first swing arm 310 is provided with a front baffle 311 and a rear baffle, with a positioning slot formed between the front baffle 311 and the rear baffle for positioning. The front baffle 311 and the rear baffle on the first swing arm 310 also restrict the position of the gas cylinder in the fore-aft direction, thereby ensuring greater stability during the transport of the gas cylinder and better ensuring stable transportation of the gas cylinder. The configuration of the front baffle 311 and the rear baffle enables the fore-aft positioning of the gas cylinder, further improving the positioning accuracy of the gas cylinder.

[0046] Furthermore, the clamping actuator 350 is a dual-rod cylinder comprising a first drive rod and a second drive rod, each hingedly connected to the first swing arm 310 and the second swing arm 320. The dual-rod cylinder design allows the clamping actuator 350 to conveniently swing the first and second swing arms 310 and 320 during operation. The dual-rod cylinder configuration of the clamping actuator 350 offers the advantages of readily available materials and low cost.

[0047] Furthermore, the displacement assembly includes a rotary actuator 410 and a bottle holder 420. The rotary actuator 410 is located below the landing plate 210 and is disposed on the base 1. The rotary actuator 410 drives the bottle holder 420 to fall down or stand up. The bottle holder 420 is formed with a bottle groove 421 for positioning the gas cylinder. In this embodiment, the setting direction of the rotary actuator 410 is the same as the swing direction of the first swing arm 310 and the second swing arm 320, that is, both are in the left-right direction. In this way, when the rotary actuator 410 drives the gas cylinder on the bottle holder 420 to stand up, if the gas cylinder interferes with the first swing arm 310 or the second swing arm 320, the first swing arm 310 and the second swing arm 320 only need to be slightly opened to allow the first swing arm 310 and the second swing arm 320 to avoid sufficient space.

[0048] Furthermore, the bottom of the bottle trough 421 is provided with a linear actuator 430 and a push plate 440. The linear actuator 430 and the push plate 440 are operatively connected to each other to push the bottle out of the trough 421. This configuration allows for the convenient removal of gas cylinders removed from the drone. The linear actuator 430 can be replaced with a pneumatic cylinder, which offers the advantages of low cost and clean energy.

[0049] In this embodiment, the shift assembly also includes a gas cylinder storage rack extending in the up-down direction. The gas cylinder storage rack is located at the front side of the bottle holder 420. The lower end of the gas cylinder storage rack is provided with a gas cylinder gap that can only accommodate one gas cylinder. A bottle-pushing cylinder is provided on the side of the gas cylinder gap facing away from the bottle holder 420. When the bottle holder 420 needs to be loaded with gas cylinders, the rotary driver 410 drives the bottle holder 420 to rotate toward one side of the gas cylinder storage rack, and then the bottle-pushing cylinder pushes a gas cylinder into the bottle holder 420 and positions it in the bottle groove 421 of the bottle holder 420. After that, the rotary driver 410 drives the bottle holder 420 to rotate to a vertical state, thus completing the loading of the gas cylinder. After loading the gas cylinder, it is transported to the rotor drone 20 by the bottle delivery assembly 300 and locked by the solenoid valve to complete the replacement of the gas cylinder. The use of this shift assembly has the advantages of simple structure and reliable operation.

[0050] The above specifically describes the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. UAV hydrogen tank replacement mechanism, characterized by: include: Base (1); A positioning assembly (200), wherein the positioning assembly (200) positions the drone on the base (1), the positioning assembly (200) comprising a landing plate (210) disposed above the base (1), the landing plate (210) being provided with a first foot groove (211) and a second foot groove (212) for positioning the drone, and a gas cylinder through hole (213) being further provided in the middle of the landing plate (210); The bottle delivery assembly (300) is used to receive the loosened gas cylinder on the drone and transfer it downward. The bottle delivery assembly (300) includes a first swing arm (310), a second swing arm (320), a first pinching wheel (330), a second pinching wheel (340), and a clamping driver (350). The first swing arm (310) and the second swing arm (320) are respectively located on both sides of the gas cylinder through hole (213). The first swing arm (310) and the second swing arm (320) are respectively located on both sides of the gas cylinder through hole (213). 20) are both rotatably connected to the landing plate (210), the first pinching wheel (330) is rotatably connected to the first swing arm (310), and the second pinching wheel (340) is rotatably connected to the second swing arm (320), a pinching groove for clamping and transporting the gas cylinder up and down is formed between the first pinching wheel (330) and the second pinching wheel (340), and the clamping driver (350) is used to drive the first swing arm (310) and the second swing arm (320) to swing toward or away from each other; A shifting assembly is provided, wherein the shifting assembly is used to receive the gas cylinder transferred by the bottle delivery assembly (300) and to transfer the new gas cylinder to the bottle delivery assembly (300).

2. The drone hydrogen cylinder replacement mechanism according to claim 1, characterized in that: The first swing arm (310) is further provided with a front baffle (311) and a rear baffle, and a positioning groove for positioning is formed between the front baffle (311) and the rear baffle.

3. The drone hydrogen cylinder replacement mechanism according to claim 1, characterized in that: The clamping driver (350) is a double-rod cylinder, comprising a first driving rod and a second driving rod, wherein the first driving rod and the second driving rod are hinged to the first swing arm (310) and the second swing arm (320) respectively.

4. The drone hydrogen cylinder replacement mechanism according to claim 1, characterized in that: The shift assembly comprises a rotary driver (410) and a bottle seat (420), wherein the rotary driver (410) is located below the landing plate (210), and the rotary driver (410) is provided on the base (1). The rotary driver (410) drives the bottle seat (420) to fall down or stand up, and a bottle groove (421) for positioning a gas cylinder is formed on the bottle seat (420).

5. The drone hydrogen cylinder replacement mechanism according to claim 4, characterized in that: The bottom of the bottle trough (421) is further provided with a linear driver (430) and a push plate (440), wherein the linear driver (430) is drivingly connected to the push plate (440) and is used to push the bottle out of the bottle trough (421).

6. The drone hydrogen cylinder replacement mechanism according to claim 5, characterized in that: The linear drive (430) is a cylinder.

7. UAV hydrogen tank rapid ventilation structure, characterized by: include: The drone hydrogen cylinder replacement mechanism according to any one of claims 1 to 6; A rotary wing unmanned aerial vehicle (20) is provided with a fuel cell at the bottom of the rotary wing unmanned aerial vehicle (20), a gas cylinder socket is provided at the bottom side of the fuel cell, and a solenoid valve is provided at the gas cylinder socket, and the solenoid valve is used to lock or release the gas cylinder.

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