Hydrogen energy unmanned aerial vehicle

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to a hydrogen energy unmanned aerial vehicle. The unmanned aerial vehicle comprises a vehicle body and a power supply bin arranged on the vehicle body, wherein a hydrogen fuel cell comprising a cell body and a hydrogen production device is arranged in the power supply bin; the hydrogen production device comprises a storage tank, a storage bin, a reaction tank and a pipeline system, a plurality of storage grooves and a locking mechanism are arranged on the storage bin, the reaction tank is communicated with the pipeline system through a connector and a connector, the storage tank is communicated with the reaction tank through the pipeline system to convey reaction raw materials, and the reaction tank is connected with the hydrogen fuel cell through the pipeline system to convey hydrogen. By optimizing the design and layout of the reaction tank, the reliability and maintenance convenience of the hydrogen fuel cell are improved, and meanwhile the cruising ability and operation stability of the unmanned aerial vehicle are improved.

Description

Technical Field

[0001] The present application relates to the technical field of unmanned aerial vehicles, and in particular to a hydrogen-powered unmanned aerial vehicle. Background Art

[0002] At present, small and light rotary / fixed-wing drones are increasingly used in daily life, such as plant protection drones, inspection drones, rescue drones, etc., playing an important role in various fields. Due to their portability and flexibility, these drones can efficiently complete tasks in various complex environments, greatly improving work efficiency and safety. However, with the diversification of application scenarios and the continuous improvement of technical requirements, the endurance of drones has become one of the key factors restricting their performance.

[0003] In order to extend the flight time of drones, existing solutions mainly focus on improving the energy supply method. Common methods include increasing battery capacity, optimizing energy management systems, and adopting new energy sources. However, increasing battery capacity will inevitably occupy more space inside the drone and affect the load capacity. In addition, lithium batteries still have the problem of insufficient battery life under high energy consumption and long-term continuous operation.

[0004] In order to improve the endurance of drones, hydrogen fuel cells are currently used as an alternative to lithium batteries. For example, the patent with publication number CN116979108A ​​discloses a drone hydrogen fuel cell system, which has a control unit, a hydrogen supply unit, a fuel cell unit and a power management unit. The hydrogen supply unit includes a storage tank, a reactor and a purification cooler. The storage tank is used to store solid or liquid hydrogen production reactants, and the storage tank is connected to the reactor.

[0005] The above scheme uses sodium borohydride to decompose in a reaction tank to prepare hydrogen to ensure the normal operation of the fuel cell, effectively improve the endurance of the fuel cell, and can effectively replace lithium batteries.

[0006] However, in the above scheme, the reactor is an important part, and the sodium borohydride reaction raw material produces hydrogen and sodium borate in the reaction tank. As the working time increases, the sodium borate produced inside the reactor will gradually increase, which will occupy the internal space of the reactor on the one hand, and will also affect the production rate of hydrogen on the other hand. Summary of the invention

[0007] The present application provides a hydrogen-powered drone with an efficient hydrogen production device, which can effectively ensure the hydrogen production efficiency and thus ensure the stable operation of the fuel cell. The following technical solutions are adopted: A hydrogen-powered drone comprises a body and a power supply compartment arranged on the body, wherein a hydrogen fuel cell is arranged in the power supply compartment; The hydrogen fuel cell comprises a battery body and a hydrogen production device; the hydrogen production device comprises a storage tank, a storage bin, a reaction tank and a pipeline system; the storage bin is provided with a plurality of storage slots, the storage slots form an opening on the side wall of the storage bin, the reaction tank can be installed in the storage slots through the opening, and the reaction tanks are provided with a plurality of storage slots corresponding to the reaction tanks; the storage bin is also provided with a locking mechanism for fixing the reaction tanks; The pipeline system is provided with a connector, the reaction tank is provided with a connector head which is detachably connected to the connector, and the reaction tank is connected with the pipeline system through the connector and the connector head; the storage tank is connected with the reaction tank through the pipeline system to transport reaction raw materials; the reaction tank is connected with a hydrogen fuel cell through the pipeline system to transport hydrogen.

[0008] By adopting the above technical solution, multiple reaction tanks are set up, and each reaction tank can be independently installed on the storage bin and connected to the storage tank and the fuel cell through a pipeline system to avoid the failure of a single reaction tank or excessive waste inside the reaction tank affecting the preparation of hydrogen, thereby ensuring the normal operation of the fuel cell and effectively improving the endurance and multi-scenario application capabilities of the drone.

[0009] Preferably, a retaining frame is provided in the storage bin, a containing space is provided inside the retaining frame, and the reaction tank is inserted into the containing space; the locking mechanism includes a baffle rod provided on the retaining frame, the baffle rod is rotatably connected to the retaining frame and abuts against the reaction tank to limit the movement of the reaction tank.

[0010] By adopting the above technical solution, the reactor tank can be stably fixed in the storage bin, preventing the reactor tank from shifting or falling off due to vibration during the flight of the drone, thereby improving the safety and reliability of the system. At the same time, the design of the fixing groove makes the installation and removal of the reactor tank more convenient, and is easy to maintain and replace. The rotating connection design of the blocking rod and the retaining frame makes the locking mechanism easy to operate and improves the convenience of use.

[0011] Preferably, the locking mechanism further comprises a tensioning rod rotatably connected to the retaining frame, the tensioning rod is provided with a tensioning spring, the tensioning rod is provided with an abutment joint, and the abutment joint abuts against the blocking rod under the action of the tensioning spring.

[0012] By adopting the above technical solution, it is possible to ensure that the blocking rod is always in contact with the reaction tank under the action of the tension spring, thereby more firmly fixing the reaction tank and preventing it from loosening or falling off due to vibration during the flight of the drone, thereby improving the stability and reliability of the system.

[0013] Preferably, a sliding mechanism is provided on the peripheral side of the retaining frame, and the retaining frame is slidably connected with the storage bin through the sliding mechanism, so that the retaining frame moves to the outside of the storage slot; The storage bin is provided with a spring hook, and the retaining frame is provided with a connecting buckle, and the connecting buckle cooperates with the spring hook to fix the retaining frame inside the storage bin.

[0014] By adopting the above technical solution, the reaction tank can be easily replaced. Specifically, the sliding mechanism arranged on the periphery of the retaining frame allows the retaining frame to slide along the storage bin, making it convenient for the operator to take the reaction tank out of or put it in the storage slot. At the same time, the spring hook on the storage bin cooperates with the connecting buckle on the retaining frame to ensure that the retaining frame is firmly fixed inside the storage bin, preventing it from loosening or falling off during the flight of the drone, thereby improving the stability and reliability of the system.

[0015] Preferably, a detection sensor for detecting the size of the internal space of the reaction tank is provided in the storage bin; a driving mechanism is also provided in the storage bin, the driving mechanism has a telescopic push rod, and the spring hook is provided with an abutment plate for abutting the push rod; the telescopic push rod is used to push the abutment plate so that the spring hook swings and the spring hook is disengaged from the connecting buckle.

[0016] By adopting the above technical solution, the detection sensor can monitor the size of the space inside the reaction tank in real time to ensure the hydrogen generation efficiency inside the reaction tank. When the internal space of the reaction tank is reduced to a certain extent, the telescopic push rod of the drive mechanism drives the abutment plate of the spring hook, causing the spring hook to swing and disengage from the connecting buckle, thereby unlocking the retaining frame so that it can slide out of the storage slot, making it easier to replace or clean the reaction tank, thereby improving the maintenance convenience and operational reliability of the drone.

[0017] Preferably, the driving mechanism further comprises a fixing sleeve, one end of the telescopic top rod is inserted into the fixing sleeve, an electromagnet and a driving spring are further arranged inside the fixing sleeve, and the driving spring is arranged between the telescopic top rod and the electromagnet.

[0018] By adopting the above technical solution, the electromagnet and the drive spring in the fixed sleeve work together to enable the telescopic top rod to be quickly extended when needed, and the drive spring ensures the stability and reliability of the telescopic top rod. This design not only simplifies the operation process, but also realizes automatic control and improves the efficiency of reactor replacement.

[0019] Preferably, the sliding mechanism comprises a guide rod and a guide sleeve, the guide rod is arranged on the storage bin, the guide sleeve is fixed on the retaining frame, and the guide sleeve is slidably connected to the guide rod; The retaining frame is also provided with a damping wheel, and the guide rod is provided with an abutting portion, and the damping wheel abuts against the abutting portion to provide sliding damping for the retaining frame.

[0020] By adopting the above technical solution, the sliding connection structure of the guide rod and the guide sleeve enables the retainer to slide stably in the storage bin, ensuring the smooth installation and removal of the reaction tank. The damping wheel abuts against the abutment portion on the guide rod, which can provide appropriate sliding damping to prevent the retainer from accidentally sliding out due to external vibrations, thereby improving the reliability and safety of the system.

[0021] Preferably, the guide rod is further provided with a disengagement portion, the damping wheel can be moved to one side of the disengagement portion and there is a gap between the damping wheel and the disengagement portion; the disengagement portion is located on the side of the abutment portion facing away from the opening of the receiving slot; when the retaining frame is located inside the receiving slot, the damping wheel is located at the disengagement portion; A driving spring is also provided inside the storage bin, and the driving spring is arranged along the moving direction of the retaining frame, and the end of the driving spring abuts against the retaining frame; the driving spring is used to push the retaining frame to move outside the storage slot and move the damping wheel from the disengagement portion to the abutment portion.

[0022] By adopting the above technical solution, it can be ensured that when the reaction tank needs to be replaced, the retaining frame can be quickly and smoothly moved out of the storage slot, which is convenient for the operator to replace. Specifically, the design of the disengagement portion on the guide rod can facilitate the rapid sliding of the retaining frame, and under the action of the driving spring, the end of the retaining frame is moved out of the storage bin, thereby prompting the staff that the reaction tank needs to be replaced or cleaned. The setting of the abutment portion can prevent the retaining frame from completely popping out of the storage bin and ensure the stability of the retaining frame. When the staff pulls the retaining frame, the damping wheel can abut against the abutment portion and provide a certain sliding damping, thereby improving the stability of the movement of the reaction tank and avoiding excessive impact. At the same time, it can also ensure that the retaining frame has high stability when the staff replaces the reaction tank, which is easy to operate.

[0023] Preferably, the connector includes an air inlet and a material delivery port, the connecting head includes an air delivery joint and a material receiving joint, a one-way valve is provided at the air inlet, and a one-way valve is provided at the material receiving joint.

[0024] By adopting the above technical solutions, the design of the connector and the connector makes the transmission of hydrogen safer and more reliable. The gas inlet and the feed port are used to receive and deliver gas respectively, and the setting of the one-way valve can prevent hydrogen backflow, ensure the stability and safety of the hydrogen supply system, and avoid safety hazards caused by gas backflow. At the same time, the one-way valve can also effectively reduce the risk of hydrogen leakage and improve the sealing and reliability of the system.

[0025] In summary, the present invention includes at least one of the following beneficial technical effects: 1. By setting up multiple storage tanks and corresponding reaction tanks, multi-stage hydrogen production can be achieved, which improves the stability and sustainability of hydrogen supply and solves the problem of reduced hydrogen production efficiency due to internal waste accumulation in traditional single reaction tanks; 2. The design of the locking mechanism ensures the stable installation of the reaction tank in the storage tank, avoids the impact of the vibration of the drone during flight on the reaction tank, and improves the reliability and safety of the system; 3. The connectors on the piping system and the connectors on the reaction tanks enable quick and detachable connections, making it easy to maintain and replace the reaction tanks, simplifying the operating process and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the hydrogen production device in the embodiment of the present application; Figure 2 is a cross-sectional view of a hydrogen production device in an embodiment of the present application; Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A; Figure 4 It is a schematic diagram for showing the specific connection structure of the retaining frame, reaction tank, and storage bin.

[0027] Markings in the accompanying drawings: 1. Storage bin; 11. Storage slot; 12. Spring hook; 121. Handle; 13. Push spring; 2. Reaction tank; 21. Air supply connector; 22. Material receiving connector; 3. Retaining frame; 31. Straight rod; 32. Ring; 33. Connecting buckle; 34. Damping wheel; 4. Locking mechanism; 41. Baffle rod; 42. Tensioning rod; 43. Abutment joint; 5. Sliding mechanism; 51. Guide rod; 511. Disengagement portion; 512. Abutment portion; 52. Guide sleeve; 6. Driving mechanism; 7. Connector; 71. Air inlet; 72. Material feeding port. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 The present invention is described in further detail.

[0029] The present application embodiment provides a hydrogen powered drone, referring to Figure 1 and Figure 2, which includes a body and a power supply compartment arranged on the body, and a hydrogen fuel cell is arranged in the power supply compartment. The hydrogen fuel cell includes a battery body and a hydrogen production device; the hydrogen production device includes a storage tank, a storage bin 1, a reaction tank 2 and a pipeline system. The storage bin 1 is provided with a plurality of storage slots 11, and the storage slots 11 form an opening on the side wall of the storage bin 1. The reaction tank 2 can be installed in the storage slots 11 through the openings, and the reaction tank 2 is provided with a plurality of storage slots 11 correspondingly; the storage bin 1 is also provided with a locking mechanism 4 for fixing the reaction tank 2. A connector 7 is provided on the pipeline system, and a connector head detachably connected to the connector 7 is provided on the reaction tank 2, and the reaction tank 2 is connected to the pipeline system through the connector 7 and the connector head. The storage tank is connected to the reaction tank 2 through the pipeline system to transport the reaction raw materials; the reaction tank 2 is connected to the hydrogen fuel cell through the pipeline system to transport hydrogen.

[0030] Further, see Figure 3 and Figure 4 , a retaining frame 3 is arranged in the storage bin 1. In the present application, the retaining frame 3 is composed of a plurality of straight rods 31 and a ring 32 arranged at both ends of the straight rod 31, and the ring 32 is fixedly connected to the straight rod 31. A holding space is arranged inside the retaining frame 3, and the reaction tank 2 can be inserted into the holding space. The locking mechanism 4 includes a baffle 41 arranged on the retaining frame 3, and the baffle 41 is rotatably connected with the retaining frame 3 and abuts against the reaction tank 2 to limit the movement of the reaction tank 2. The retaining frame 3 can be made of aluminum alloy material with good strength and corrosion resistance, and the fixing groove can be round or square to adapt to reaction tanks 2 of different shapes. The baffle 41 can be made of stainless steel material with high hardness and wear resistance to ensure that it is not easily damaged during long-term use. The rotational connection between the baffle 41 and the retaining frame 3 can be achieved by a pin to reduce friction and improve the smoothness of rotation.

[0031] Reference Figure 3 and Figure 4 The locking mechanism 4 further includes a tension rod 42 rotatably connected to the retaining frame 3, a tension spring is provided on the tension rod 42, and an abutment joint 43 is provided on the tension rod 42. The abutment joint 43 abuts against the blocking rod 41 under the action of the tension spring. The tension rod 42 can be made of high-strength steel material with good tensile strength and toughness, the tension spring can be a compression spring to ensure that the tension rod 42 is always in a tensioned state, and the abutment joint 43 can be made of rubber material with a certain elasticity, which can provide a buffering effect when contacting the blocking rod 41 to avoid damage caused by hard collision.

[0032] A sliding mechanism 5 is provided around the retainer 3, and the retainer 3 is slidably connected to the storage bin 1 through the sliding mechanism 5, so that the retainer 3 moves to the outside of the storage tank 11. The length of the storage tank 11 is greater than the length of the retainer 3 and the reaction tank 2. Therefore, when the retainer 3 and the reaction tank 2 can be completely stored in the storage tank 11, the reaction tank 2 can be provided with a certain degree of protection.

[0033] Reference Figure 3 and Figure 4 The sliding mechanism 5 specifically includes a guide rod 51 and a guide sleeve 52. The guide rod 51 is fixed on the storage bin 1, and the guide sleeve 52 is fixed on the retaining frame 3. The guide sleeve 52 is slidably connected to the guide rod 51. The guide rod 51 can be made of stainless steel, which has high strength and corrosion resistance, and the guide sleeve 52 can be made of copper alloy, which has good wear resistance and lubricity. Through the cooperation of the guide sleeve 52 and the guide rod 51, the retaining frame 3 can be stably moved along the guide rod 51, so that the retaining frame 3 can be pushed into or moved out of the storage slot 11.

[0034] In order to stably fix the holder 3 inside the storage slot 11, the storage bin 1 is provided with a spring hook 12, and the holder 3 is provided with a connecting buckle 33, and the connecting buckle 33 cooperates with the spring hook 12 to fix the holder 3 inside the storage bin 1. The connecting buckle 33 can be made of plastic material, which has good elasticity and durability, and the spring hook 12 can be made of spring steel material, which has high elasticity and durability.

[0035] Reference Figure 3 and Figure 4 The spring hook 12 is also provided with a handle 121 , which extends to the outside of the storage bin 1 . The staff can unlock the spring hook 12 by turning the handle 121 .

[0036] A detection sensor for detecting the size of the internal space of the reaction tank 2 is arranged in the storage bin 1. The detection sensor can be an inductive sensor or an ultrasonic sensor, which has high accuracy and response speed. The inductive sensor uses the principle of inductance to detect metal. Since the reaction tank 2 is a metal tank, when its internal space changes, such as when an object moves or the liquid water level changes, these changes will affect the electric field in the inductor coil, thereby inducing an electromotive force. By measuring this electromotive force, the changes in the space inside the metal bottle can be indirectly judged. The ultrasonic sensor judges the changes in the space inside the reaction tank 2 by the ultrasonic echo.

[0037] Reference Figure 3 and Figure 4 A driving mechanism 6 is also provided in the storage bin 1. The driving mechanism 6 has a telescopic top rod and a fixed sleeve. One end of the telescopic top rod is inserted in the fixed sleeve. An electromagnet and a driving spring are also provided inside the fixed sleeve. The driving spring is provided between the telescopic top rod and the electromagnet. The fixed sleeve can be made of aluminum alloy material with good strength and corrosion resistance. The electromagnet has high magnetic force and response speed. The driving spring can be a compression spring to ensure that the telescopic top rod is always in a pre-tightened state, thereby improving the reliability of the drive.

[0038] The spring hook 12 is provided with an abutment plate for abutting against the telescopic push rod. In the embodiment of the present application, the handle 121 is the abutment plate. The telescopic push rod is used to push the handle 121 to swing the spring hook 12 and disengage the spring hook 12 from the connecting buckle 33. The telescopic push rod can be a hydraulic cylinder or an electric push rod, which has a large thrust and stability. The abutment plate on the spring hook 12 can be made of metal material, which has high hardness and wear resistance.

[0039] Therefore, when the detection sensor detects that the space in the reaction tank 2 is insufficient, the driving mechanism 6 will drive the spring hook 12 to disengage from the connecting buckle 33, so that the retaining frame 3 is automatically ejected.

[0040] Reference Figure 4 The retainer 3 is also provided with a damping wheel 34, and the guide rod 51 is provided with an abutting portion 512. The damping wheel 34 abuts against the abutting portion 512 to provide sliding damping for the retainer 3. The damping wheel 34 can be made of rubber material, which has a certain elasticity and can provide a buffering effect when contacting the guide rod 51 to avoid damage caused by hard collision. The abutting portion 512 can be made of metal material, which has high hardness and wear resistance.

[0041] Reference Figure 4 , a disengagement portion 511 is also provided on the guide rod 51, and the damping wheel 34 can move to one side of the disengagement portion 511 and there is a gap between the damping wheel 34 and the disengagement portion 511. The disengagement portion 511 is located on the side of the abutment portion 512 facing away from the opening of the storage slot 11. When the retaining frame 3 is located inside the storage slot 11, the damping wheel 34 is located at the disengagement portion 511. A push spring 13 is also provided inside the storage bin 1, and the push spring 13 is arranged along the moving direction of the retaining frame 3, and the end of the push spring 13 abuts against the retaining frame 3. The push spring 13 is used to push the retaining frame 3 to move to the outside of the storage slot 11, and to move the damping wheel 34 from the disengagement portion 511 to the abutment portion 512. The push spring 13 can be a compression spring with high elasticity and restoring force, so that the retaining frame 3 can be smoothly reset.

[0042] The design of the disengagement portion 511 on the guide rod 51 can facilitate the quick sliding of the retaining frame 3, and under the action of the driving spring, the end of the retaining frame 3 is moved out of the storage bin 1, thereby prompting the staff that the reaction tank 2 needs to be replaced or cleaned. The setting of the abutment portion 512 can prevent the retaining frame 3 from completely popping out of the storage bin 1 and ensure the stability of the retaining frame 3. When the staff pulls the retaining frame 3, the damping wheel 34 can abut against the abutment portion 512 and provide a certain sliding damping, thereby improving the stability of the movement of the reaction tank 2 and avoiding excessive impact. At the same time, it can also ensure that the retaining frame 3 has high stability when the staff replaces the reaction tank 2, which is easy to operate.

[0043] In addition, when the reaction tank 2 is pushed into or removed from the storage tank 11, the connection between the reaction tank 2 and the pipeline system needs to be considered. In order to ensure that the reaction tank 2 is automatically connected to the pipeline system when it is pushed into the storage tank 11 and that the reaction tank 2 is automatically separated from the pipeline system when it is removed from the storage tank 11, a connector is provided on the reaction tank 2, and the pipeline system has a connector 7.

[0044] Reference Figure 4 Specifically, the connector includes a gas supply connector 21 for delivering hydrogen and a material receiving connector 22 for receiving the reaction material. The connector 7 includes a gas inlet 71 plugged with the gas supply connector 21 and a material delivery port 72 plugged with the material receiving connector 22. Both the gas inlet 71 and the material delivery port 72 are fixed on the storage bin 1.

[0045] A one-way valve is also provided at the gas inlet 71 to ensure that hydrogen can only be discharged from the reaction tank 2, and a one-way valve is also provided at the material receiving joint 22 to ensure that the reaction material can only flow into the reaction tank 2. The gas inlet 71 and the material feeding port 72 can use quick connectors for easy connection and disconnection, and the one-way valve can be made of rubber material with good sealing and durability to ensure that gas and liquid will not flow back.

[0046] The implementation principle of this embodiment is as follows: by providing a storage bin 1, a reaction tank 2 and a locking mechanism 4, the reaction tank 2 can be easily replaced, solving the problem of byproduct accumulation in the reaction tank 2 in the traditional hydrogen fuel cell system. The design of the retaining frame 3 and the sliding mechanism 5 makes the replacement of the reaction tank 2 more convenient, and the introduction of the driving mechanism 6 and the detection sensor realizes automatic replacement, improving the reliability and maintainability of the system. The setting of the push spring 13 and the damping wheel 34 ensures the stability of the retaining frame 3 and the smoothness of the sliding, and the use of the connector 7 and the one-way valve ensures the safe transmission of gas and liquid, improving the safety and efficiency of the system.

[0047] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen-powered drone, characterized by: It comprises a machine body and a power supply compartment arranged on the machine body, wherein a hydrogen fuel cell is arranged in the power supply compartment; The hydrogen fuel cell comprises a battery body and a hydrogen production device; the hydrogen production device comprises a storage tank, a storage bin (1), a reaction tank (2) and a pipeline system; the storage bin (1) is provided with a plurality of storage slots (11), the storage slots (11) forming openings on the side walls of the storage bin (1), the reaction tank (2) can be installed in the storage slots (11) through the openings, and a plurality of reaction tanks (2) and storage slots (11) are provided correspondingly; the storage bin (1) is also provided with a locking mechanism (4) for fixing the reaction tank (2); The pipeline system is provided with a connector (7), the reaction tank (2) is provided with a connector head detachably connected to the connector (7), and the reaction tank (2) is connected to the pipeline system via the connector (7) and the connector head; the storage tank is connected to the reaction tank (2) via the pipeline system to transport reaction raw materials; and the reaction tank (2) is connected to a hydrogen fuel cell via the pipeline system to transport hydrogen.

2. The hydrogen-powered UAV according to claim 1, characterized in that: A retaining frame (3) is provided in the storage bin (1), a storage space is provided inside the retaining frame (3), and the reaction tank (2) is inserted into the storage space; the locking mechanism (4) comprises a blocking rod (41) provided on the retaining frame (3), the blocking rod (41) is rotatably connected to the retaining frame (3) and abuts against the reaction tank (2) to limit the movement of the reaction tank (2).

3. The hydrogen-powered UAV according to claim 2, characterized in that: The locking mechanism (4) further comprises a tensioning rod (42) rotatably connected to the retaining frame (3), the tensioning rod (42) being provided with a tensioning spring, the tensioning rod (42) being provided with an abutment joint (43), the abutment joint (43) abutting against the blocking rod (41) under the action of the tensioning spring.

4. The hydrogen-powered UAV according to claim 2, characterized in that: A sliding mechanism (5) is provided on the peripheral side of the retaining frame (3), and the retaining frame (3) is slidably connected to the storage bin (1) via the sliding mechanism (5), so that the retaining frame (3) moves to the outside of the storage slot (11); The storage bin (1) is provided with a spring hook (12), the retaining frame (3) is provided with a connecting buckle (33), and the connecting buckle (33) cooperates with the spring hook (12) to fix the retaining frame (3) inside the storage bin (1).

5. The hydrogen-powered UAV according to claim 4, characterized in that: A detection sensor for detecting the size of the internal space of the reaction tank (2) is arranged in the storage bin (1); a driving mechanism (6) is also arranged in the storage bin (1); the driving mechanism (6) has a telescopic push rod (), and the spring hook (12) is provided with an abutment plate for abutting against the push rod; the telescopic push rod () is used to push the abutment plate so that the spring hook (12) swings and the spring hook (12) is disengaged from the connection buckle (33).

6. The hydrogen-powered UAV according to claim 5, characterized in that: The driving mechanism (6) further comprises a fixing sleeve, one end of the telescopic top rod () is inserted into the fixing sleeve, an electromagnet and a driving spring are also arranged inside the fixing sleeve, and the driving spring is arranged between the telescopic top rod () and the electromagnet.

7. The hydrogen-powered UAV according to claim 5, characterized in that: The sliding mechanism (5) comprises a guide rod (51) and a guide sleeve (52), wherein the guide rod (51) is arranged on the storage bin (1), the guide sleeve (52) is fixed on the retaining frame (3), and the guide sleeve (52) is slidably connected to the guide rod (51); The retaining frame (3) is further provided with a damping wheel (34), and the guide rod (51) is provided with an abutment portion (512), and the damping wheel (34) abuts against the abutment portion (512) to provide sliding damping for the retaining frame (3).

8. The hydrogen-powered UAV according to claim 7, characterized in that: The guide rod (51) is also provided with a disengagement portion (511); the damping wheel (34) can move to one side of the disengagement portion (511) and a gap is provided between the damping wheel (34) and the disengagement portion (511); the disengagement portion (511) is located on a side of the abutment portion (512) facing away from the opening of the receiving groove (11); when the retaining frame (3) is located inside the receiving groove (11), the damping wheel (34) is located at the disengagement portion (511); A driving spring is also provided inside the storage bin (1), the driving spring being arranged along the moving direction of the retaining frame (3), and the end of the driving spring being in contact with the retaining frame (3); the driving spring is used to push the retaining frame (3) to move toward the outside of the storage slot (11), and to move the damping wheel (34) from the disengaging portion (511) to the contacting portion (512).

9. The hydrogen-powered UAV according to claim 8, characterized in that: The connector (7) comprises an air inlet (71) and a material delivery port (72), the connector comprises an air delivery joint (21) and a material receiving joint (22), a one-way valve is provided at the air inlet (71), and a one-way valve is provided at the material receiving joint (22).

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