Hydrogen energy unmanned aerial vehicle

Abstract

The utility model discloses a hydrogen energy unmanned aerial vehicle, belongs to the technical field of hydrogen energy unmanned aerial vehicles, and aims to solve the problems that in the prior art, the purpose of fixing is achieved by encircling a hydrogen storage bottle body with two bandages, but the bandages only act on the middle part of the bottle body and cannot effectively restrain the two ends of the hydrogen storage bottle, and in the flying process of the unmanned aerial vehicle, the bandages cannot effectively restrain the two ends of the hydrogen storage bottle. The problems that a hydrogen storage bottle is extremely prone to axial movement and radial deviation, especially when the hydrogen storage bottle encounters the conditions of airflow bumping, sharp turning and the like, relative sliding possibly occurs between a bandage and a bottle body, fixing failure is caused, and in addition, after being used for a long time, the bandage can be abraded and aged, the strength is reduced, and the risk of breakage exists are solved. Comprising an unmanned aerial vehicle body, a protection mounting frame is fixedly connected to the lower portion of the unmanned aerial vehicle body, an opening and closing mechanism is installed at the front end of the protection mounting frame, a limiting mechanism is installed in the protection mounting frame, the limiting mechanism comprises a first limiting assembly and a plurality of partition plates, and hydrogen storage bottles are installed on the inner sides of the multiple adjacent partition plates.

Description

Technical Field

[0001] This utility model belongs to the field of hydrogen-powered drone technology, and specifically relates to a hydrogen-powered drone. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and onboard program control devices, or operated autonomously by an onboard computer, either completely or intermittently. Currently, UAVs are equipped with hydrogen fuel cells and hydrogen cylinders. They rely on hydrogen fuel cells to provide electricity to the UAVs. Hydrogen gas is delivered to the anode plate (negative electrode) of the hydrogen fuel cell. Through the action of a catalyst, an electron is separated from a hydrogen atom, which generates an electric current.

[0003] Currently, hydrogen-powered drones typically rely on two straps wrapped around the hydrogen storage tank for fixation. However, while these straps only act on the middle of the tank, they cannot effectively restrain the ends of the tank. Furthermore, the hydrogen storage tank is prone to axial movement and radial displacement during drone flight, especially when encountering turbulent airflow or sharp turns. In such cases, the straps may slip relative to the tank, leading to fixation failure. In addition, the straps wear down and age over time, reducing their strength and posing a risk of breakage. Summary of the Invention

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a hydrogen-powered drone that solves the problem that existing technologies typically rely on two straps wrapped around the hydrogen storage tank for fixation. However, although the straps only act on the middle of the tank, they cannot effectively constrain the two ends of the tank. Furthermore, during drone flight, the hydrogen storage tank is prone to axial movement and radial displacement, especially when encountering turbulent airflow or sharp turns, where relative slippage may occur between the straps and the tank, leading to fixation failure. In addition, the straps will wear down and age after long-term use, reducing their strength and posing a risk of breakage.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides a hydrogen-powered drone, comprising a drone body, a protective frame fixedly connected to the lower part of the drone body, an opening and closing mechanism installed at the front end of the protective frame, a limiting mechanism installed inside the protective frame, the limiting mechanism comprising a first limiting component and multiple partitions therein, and hydrogen storage cylinders installed on the inner sides of multiple adjacent partitions, the first limiting component being installed inside the protective frame, and a second limiting component being installed in the upper part of the inner part of the protective frame.

[0008] Furthermore, the first limiting component includes partitions, which are disposed inside the protective frame. Each of the partitions has a second return spring on its opposite side, and a limiting frame is fixed inside the second return springs. One end of the protective frame is provided with three pairs of fixing blocks, and each of the three pairs of fixing blocks and the limiting frame has a first buffer pad on its inner side.

[0009] Furthermore, the inner dimensions of the limiting frame match the dimensions of the first buffer pad.

[0010] Furthermore, the second limiting component includes a transmission rod, which is installed in the upper section inside the protective frame. A motor is installed at one end of the transmission rod, and first bevel gears are distributed around the periphery of the transmission rod. A second bevel gear meshes with one side of a plurality of first bevel gears, and a transmission screw is fixed in the middle of the plurality of second bevel gears. A screw sleeve is screwed around one side of the plurality of transmission screws, and a special-shaped frame is fixed below the plurality of screw sleeves. A rotating rod is installed in the middle of one side of the special-shaped frame, and three pressure plates are movable around the periphery of the rotating rod. A second buffer pad is provided on the inner side of the three pressure plates.

[0011] Furthermore, the pressure plate is rotatably connected by a rotating rod.

[0012] Furthermore, the opening and closing mechanism includes a fixed edge, which is fixedly disposed below the front end of the protective frame. A hinge is installed on the outer side of the fixed edge, and a protective door is connected to one side of the hinge. Preset slots are provided on both sides of the front end of the protective door, and a first return spring is installed in the middle of the two preset slots. A handheld guide is connected above the two first return springs. Guide slots are provided on both sides of the middle of the two preset slots, and a limiting rod is fixed above both sides of the handheld guide.

[0013] Furthermore, the handheld guide and the guide groove are connected by a movable guide, and the end dimensions of the limiting rods on both sides above the handheld guide match the dimensions of the limiting slots that are aligned and separated above the front end of the protective device.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention involves inserting multiple prepared hydrogen storage cylinders into the space between adjacent partitions, one against the outer side of a movable pressure plate. During this process, the operator must ensure that the limiting brackets and inner first buffer pads on the inner sides of the adjacent partitions are elastically and stably pressed against the sides of the hydrogen storage cylinders by multiple second return springs. Once the multiple hydrogen storage cylinders are aligned and pushed to their innermost position, the branch pipes of the cylinders will be exposed outside the protective frame. These are then connected to a commercially available hydrogen main channel and various valves, such as shut-off valves and pressure reducing valves, to supply hydrogen to the fuel cell. The operator then starts the motor to drive the transmission rod and multiple first cones... When the bevel gear rotates, the second bevel gear meshing with multiple gears can rotate its respective transmission screw. As a result, the screw sleeves interacting with the multiple screws can move along the grooves on both sides of the inner end of the protective frame and limit the movement of the screws to the end of the corresponding hydrogen storage tank. Due to the special shape of the bevel frame, the pressure plates can only rotate inward. Therefore, in this state, the first limiting component can be used to achieve stable limiting of the hydrogen storage tank. It is worth mentioning that the electricity that can be used for the motor mentioned above can be supplied to this part when the hydrogen fuel cell is turned on, or it can be the battery equipped in the drone itself.

[0017] Before the drone body of this utility model is put into use, personnel need to install a hydrogen storage cylinder in the protective frame set below the drone body. In this way, during use, the hydrogen in the storage cylinder can be sent to the negative electrode of the anode plate of the hydrogen fuel cell. After the action of the catalyst, an electron in the hydrogen atom is separated to generate an electric current to power the drone body for flight. During the installation of the hydrogen storage cylinder, personnel can hold the hand-held guide frame. At this time, the two ends of the hand-held guide frame are compressed by the guide groove under the guidance of the guide groove. In this state, the limiting rods on both sides above the hand-held guide frame will disengage from the limiting groove hole set above the front end of the protective frame, thereby opening the protective door. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0021] Figure 3 A top-down view of the internal structure of the protective frame;

[0022] Figure 4 This is a partial structural diagram of the second limiting component.

[0023] The labels in the attached diagram are as follows: 1. UAV body; 2. Protective frame; 3. Opening and closing mechanism; 31. Fixed edge; 32. Hinge; 33. Protective door; 34. Preset groove; 35. First return spring; 36. Handheld guide; 37. Guide groove; 38. Limiting rod; 4. Limiting mechanism; 41. First limiting component; 411. Partition; 412. Second return spring; 413. Limiting frame; 414. Fixing block; 415. First buffer pad; 42. Second limiting component; 421. Transmission rod; 422. Motor; 423. First bevel gear; 424. Second bevel gear; 425. Transmission screw; 426. Screw sleeve; 427. Irregular frame; 428. Rotating rod; 429. Pressure plate; 4210. Second buffer pad; 5. Hydrogen storage cylinder. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This specific embodiment is a hydrogen-powered drone, and its structural schematic diagram is as follows: Figures 1 to 4As shown, the device includes a drone body 1, a protective frame 2 fixedly connected to the lower part of the drone body 1, and an opening and closing mechanism 3 installed at the front end of the protective frame 2. A limiting mechanism 4 is installed inside the protective frame 2, the limiting mechanism 4 including a first limiting component 41 and multiple partitions 411 therein, with hydrogen storage cylinders 5 installed on the inner sides of the multiple adjacent partitions 411. The opening and closing mechanism 3 includes a fixed edge 31, which is fixedly located below the front end of the protective frame 2. A hinge 32 is installed on the outer side of the fixed edge 31, and a protective door 33 is connected to one side of the hinge 32. Preset slots 34 are opened on both sides of the front end of the protective door 33, and a first return spring 35 is installed in the middle of the two preset slots 34. A handheld guide 36 is connected above the two first return springs 35. Guide grooves 37 are opened on both sides of the middle of the two preset slots 34, and limiting rods 38 are fixedly installed above both sides of the handheld guide 36. The handheld guide 36 and the guide groove 37 are connected by a movable guide. The end dimensions of the limiting rods 38 on both sides above the handheld guide 36 match the dimensions of the limiting slots on the front end of the protective frame 2. Before the UAV body 1 is put into use, the personnel need to install the hydrogen storage bottle 5 in the protective frame 2 below the UAV body 1. During use, the hydrogen in the hydrogen storage bottle 5 can be sent to the negative electrode of the anode plate of the hydrogen fuel cell. After the action of the catalyst, an electron in the hydrogen atom is separated to generate an electric current to supply the UAV body 1 for flight. During the installation of the hydrogen storage bottle 5, the personnel can hold the handheld guide 36. At this time, the two ends of the handheld guide 36 are compressed by the guide groove 37. In this state, the limiting rods 38 on both sides above the handheld guide 36 will disengage from the limiting slots on the front end of the protective frame 2, thereby opening the protective door 33.

[0026] The first limiting component 41 is installed inside the protective frame 2. The first limiting component 41 includes partitions 411, which are distributed inside the protective frame 2. Second return springs 412 are provided on opposite sides of the partitions 411, and limiting frames 413 are fixed inside the second return springs 412. Three pairs of fixing blocks 414 are provided at one end inside the protective frame 2, and first buffer pads 415 are provided on the inner sides of the three pairs of fixing blocks 414 and the limiting frames 413. The inner dimensions of the limiting frames 413 match the dimensions of the first buffer pads 415. A second limiting component 42 is installed in the upper part of the protective frame 2. The second limiting component 42 includes a transmission rod 421, which is installed on the protective frame 2. Inside the upper section of the mounting frame 2, a motor 422 is installed at one end of the transmission rod 421, and first bevel gears 423 are distributed around the periphery of the transmission rod 421. Second bevel gears 424 mesh with one side of the multiple first bevel gears 423, and a transmission screw 425 is fixed in the middle of the multiple second bevel gears 424. A screw sleeve 426 is screwed around one side of the multiple transmission screws 425, and a special-shaped frame 427 is fixed below the multiple screw sleeves 426. A rotating rod 428 is installed in the middle of one side of the special-shaped frame 427, and three pressure plates 429 are movably distributed around the periphery of the rotating rod 428. Second buffer pads 4210 are provided on the inner side of the three pressure plates 429, and the pressure plates 429 are rotatably connected by the rotating rod 428. Personnel sequentially insert multiple prepared hydrogen storage cylinders 5 against the outside of the movable pressure plate 429 along the central space of multiple adjacent partition plates 411. In this state, personnel must ensure that the limiting brackets 413 and the inner first buffer pads 415 on the inner sides of the adjacent partition plates 411 are elastically and stably pressed against the sides of the hydrogen storage cylinders 5 by multiple second return springs 412. When the multiple hydrogen storage cylinders 5 are aligned and pushed to the innermost end, the branch pipes of multiple cylinders will be exposed outside the protective frame 2. These are then combined and installed with commercially available hydrogen main channels and various valves, such as shut-off valves and pressure reducing valves, to supply hydrogen to the fuel cell. Subsequently, personnel start the motor 422, which drives the transmission rod 421 and multiple first bevel gears 42. 3. When rotating, the second bevel gear 424, which meshes with multiple gears, can rotate with its respective transmission screw 425. As a result, the screw sleeve 426, which interacts with multiple screws, can move along the grooves on both sides of the inner end of the protective frame 2 and limit the movement of the screw sleeve 426 to the end of the corresponding hydrogen storage cylinder 5. Since the special shape of the irregular frame 427 is such that the pressure plate 429 can only rotate inward, the first limiting component 41 can achieve stable limiting of the hydrogen storage cylinder 5 in this state. It is worth mentioning that the electricity that can be used in this part of the motor 422 can be supplied when the hydrogen fuel cell is turned on, or it can be the battery equipped in the UAV body 1 itself.

[0027] Working principle: Before the drone body 1 is put into use, personnel need to install the hydrogen storage cylinder 5 in the protective frame 2 set below the drone body 1. During use, the hydrogen in the storage cylinder 5 can be sent to the negative electrode of the anode plate of the hydrogen fuel cell. Then, through the action of the catalyst, an electron from a hydrogen atom is separated to generate an electric current to power the drone body 1 for flight. During the installation of the hydrogen storage cylinder 5, personnel can hold the hand-held guide frame 36. At this time, the two ends of the hand-held guide frame 36 are guided by the guide groove 37 to compress the two first return springs 35. In this state, the hand... The limiting rods 38 on both sides above the guide frame 36 will disengage from the limiting slots provided above the front end of the protective frame 2, thereby opening the protective door 33. Next, personnel will sequentially insert multiple prepared hydrogen storage cylinders 5 against the outside of the movable pressure plate 429 along the central space of multiple adjacent partition plates 411. In this state, personnel must ensure that the limiting frames 413 and the inner first buffer pads 415 on the inner sides of the adjacent partition plates 411 are elastically and stably pressed against the sides of the hydrogen storage cylinders 5 by multiple second return springs 412. After bottle 5 is pushed to its innermost position, the branch pipes of its multiple bottle bodies will be exposed outside the protective frame 2. These are assembled with commercially available hydrogen main channels and various valves, such as shut-off valves and pressure reducing valves, to supply hydrogen to the fuel cell. Then, the operator starts the motor 422, causing the transmission rod 421 and multiple first bevel gears 423 to rotate. At this time, the second bevel gears 424, meshing with these gears, can drive their respective transmission screws 425 to rotate. This, in turn, causes the screw sleeves 426, which interact with these screws, to rotate... The irregular frame 427 and multiple movable pressure plates 429 move along the sliding grooves on both sides of the inner end of the protective frame 2 and are positioned at the end of the corresponding hydrogen storage cylinder 5. Due to the special shape of the irregular frame 427, the pressure plates 429 can only rotate inward. Therefore, in this state, the first limiting component 41 can achieve a stable limit on the hydrogen storage cylinder 5. It is worth mentioning that the electricity that can be used in this position for the motor 422 mentioned above can be supplied to this part when the hydrogen fuel cell is turned on, or it can be the battery equipped in the UAV body 1 itself.

[0028] All technical features in this embodiment can be freely combined according to actual needs.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydrogen-powered unmanned aerial vehicle (UAV), comprising a UAV body (1), characterized in that, A protective frame (2) is fixedly connected to the lower part of the UAV body (1), and an opening and closing mechanism (3) is installed at the front end of the protective frame (2). A limiting mechanism (4) is installed inside the protective frame (2). The limiting mechanism (4) includes a first limiting component (41) and multiple partitions (411) therein. A hydrogen storage bottle (5) is installed on the inner side of multiple adjacent partitions (411). The first limiting component (41) is installed inside the protective frame (2), and a second limiting component (42) is installed in the upper part of the inner part of the protective frame (2).

2. The hydrogen-powered drone according to claim 1, characterized in that, The first limiting component (41) includes a partition (411), and the partition (411) is disposed inside the protective frame (2). Each of the partitions (411) has a second return spring (412) on its opposite side, and a limiting frame (413) is fixed inside the second return spring (412). One end of the protective frame (2) is provided with three pairs of fixing blocks (414), and each of the three pairs of fixing blocks (414) and the limiting frame (413) has a first buffer pad (415) on its inner side.

3. A hydrogen-powered drone according to claim 2, characterized in that, The inner dimensions of the limiting frame (413) match the dimensions of the first buffer pad (415).

4. A hydrogen-powered drone according to claim 1, characterized in that, The second limiting component (42) includes a transmission rod (421), and the transmission rod (421) is installed in the upper part inside the protective frame (2). A motor (422) is installed at one end of the transmission rod (421), and a first bevel gear (423) is provided around the transmission rod (421). A second bevel gear (424) meshes with one side of a plurality of first bevel gears (423), and a transmission screw (425) is fixed in the middle of the plurality of second bevel gears (424). A screw sleeve (426) is screwed around one side of the plurality of transmission screws (425), and a special-shaped frame (427) is fixed below the plurality of screw sleeves (426). A rotating rod (428) is installed in the middle of one side of the special-shaped frame (427), and three pressure plates (429) are movably provided around the rotating rod (428). A second buffer pad (4210) is provided on the inner side of the three pressure plates (429).

5. A hydrogen-powered drone according to claim 4, characterized in that, The pressure plate (429) is rotatably connected by a rotating rod (428).

6. A hydrogen-powered drone according to claim 1, characterized in that, The opening and closing mechanism (3) includes a fixed mounting edge (31), which is fixedly mounted below the front end of the protective frame (2). A hinge (32) is installed on the outer side of the fixed mounting edge (31), and a protective door (33) is connected to one side of the hinge (32). A preset groove (34) is provided on both sides of the front end of the protective door (33), and a first reset spring (35) is installed in the middle of the two preset grooves (34). A handheld guide (36) is connected above the two first reset springs (35). A guide groove (37) is provided on both sides of the middle of the two preset grooves (34), and a limit rod (38) is fixed above both sides of the handheld guide (36).

7. A hydrogen-powered drone according to claim 6, characterized in that, The handheld guide (36) and the guide groove (37) are connected by a movable guide, and the end dimensions of the limiting rods (38) on both sides above the handheld guide (36) match the dimensions of the limiting grooves that are aligned and separated above the front end of the protective frame (2).

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