An amphibious unmanned aerial vehicle

Abstract

The utility model relates to an amphibious unmanned plane, including the organism, the outer edge of organism is equipped with a plurality of rotor mechanism, the bottom of organism is equipped with the support, the support is connected with the buoyancy tank made of non - metallic material, its characterized in that, the bottom of buoyancy tank is fixed with the total pipe through the connecting pipe, and the total pipe communicates with the internal space of buoyancy tank, and the bottom of total pipe is equipped with a plurality of outlets, and the connecting pipe is equipped with the on - off valve, and the inside of organism is equipped with the injection port, and the injection port is connected with buoyancy tank through the filling pipe, and the injection port extends to the top surface of organism, and the top surface of organism is hinged with one end of the protective cover, and the first locking part is arranged between the other end of protective cover and organism, the utility model discloses the unmanned plane has saved the liquid container, and the volume and weight have been reduced.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to an amphibious UAV. Background Technology

[0002] Drones have a wide range of applications, covering multiple fields such as military, civilian and commercial. For example, drones can be used for aerial photography, agricultural monitoring, logistics delivery, and emergency rescue.

[0003] Currently, there are amphibious drones that can effectively meet the needs of drones to take off and land on land and at sea. For example, patent CN114571931B discloses an amphibious drone that includes a drone component and a buoyancy component located below the drone component. The buoyancy component enables the drone component to land and take off at sea.

[0004] However, the buoyancy components of the aforementioned drones use floats that are only used for buoyancy. When these drones are used in fields such as agricultural irrigation or firefighting, additional pesticide or fire extinguishing agent tanks and corresponding pumps need to be installed on the drone components, which increases the size of the drone and places higher demands on the drone's lift power, increasing the requirements for the drone's rotor drive mechanism and thus increasing the manufacturing cost of the drone. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an amphibious drone that eliminates the need for pumps, pesticide tanks, or fire extinguishing agent tanks when used for agricultural irrigation or firefighting, thereby reducing the size of the drone, lowering the requirements for the drone's rotor drive mechanism, and reducing the manufacturing cost of the drone.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An embodiment of this utility model provides an amphibious unmanned aerial vehicle (UAV) including a body, multiple rotor mechanisms on the outer edge of the body, a support frame at the bottom of the body, a buoyancy box made of non-metallic material connected to the support frame, a main pipe fixed to the bottom of the buoyancy box via a connecting pipe, the main pipe communicating with the internal space of the buoyancy box, multiple outlets at the bottom of the main pipe, a switch valve on the connecting pipe, an injection port inside the body, the injection port connected to the buoyancy box via a filling pipe, the injection port extending to the top surface of the body, the top surface of the body hinged to one end of a protective cover, and a first locking component between the other end of the protective cover and the body.

[0008] Optionally, the main pipe is an annular pipe, which is coaxially arranged with the buoyancy box. The annular pipe is connected to the bottom wall of the buoyancy box through a connecting pipe, and the lower part of the annular pipe wall is provided with multiple outlets along the circumferential direction.

[0009] Optionally, multiple outlets are distributed at equal intervals along the circumferential direction of the annular pipe.

[0010] Optionally, the bottom wall of the buoyancy tank is connected to an annular pipe via a connecting pipe, and the annular pipe is also provided with multiple connecting seats, which are fixedly connected to the bottom wall of the buoyancy tank.

[0011] Optionally, both the main pipe and the connecting pipe are made of PVC pipe; the top and bottom ends of the connecting pipe are provided with flanges, and the connecting pipe is fixedly connected to the bottom wall of the buoyancy box and the main pipe through the flanges.

[0012] or,

[0013] Both the main pipe and the connecting pipe are made of PVC pipe. The bottom wall of the buoyancy box is provided with a plug pipe, and the connecting pipe is inserted into the plug pipe and a sealing ring is provided between the connecting pipe and the plug pipe.

[0014] Optionally, the switching valve is an electrically controlled valve, which is connected to the control system installed on the machine body and can operate by receiving instructions from the control system.

[0015] Optionally, a protective cover is provided on the outer periphery of the switching valve, and the protective cover is detachably and fixedly connected to the connecting pipe.

[0016] Optionally, the bottom outer perimeter of the buoyancy box is provided with a crash cone. The crash cone is made of the same material as the buoyancy box and is integrally connected to the buoyancy box. A wheel frame is connected to the bottom surface of the crash cone, and the wheel frame is equipped with a traveling wheel.

[0017] Optionally, the rotor mechanism includes a support arm connected to the fuselage, one end of which is connected to the fuselage, and the other end is provided with a rotation drive component, which is connected to the rotor to drive the rotor to rotate.

[0018] Optionally, the support arm is rotatably connected to the machine body, and a second locking component is provided between the support arm and the machine body.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model relates to an amphibious drone. The bottom wall of the buoyancy tank is connected to the main pipe via a connecting pipe. The bottom of the main pipe has multiple outlets. The top of the buoyancy tank is connected to the filling port on the drone body via a filling pipe. The buoyancy tank can be used as a buoyancy component for landing and taking off on the water surface, or it can be used to hold liquids such as water, plant protection liquid, or fire extinguishing agent for agricultural irrigation, plant protection, or fire extinguishing. The outlet is located at the bottom of the main pipe. The liquid contained in the buoyancy tank can be sprayed out by its own weight, eliminating the need for a corresponding liquid tank and pump body, reducing the size and weight of the drone, simplifying the structure of the drone, reducing the requirements for the drone's rotor system drive equipment, and thus reducing the manufacturing cost of the drone.

[0021] 2. In this utility model of an amphibious drone, the annular tube is connected to the bottom of the buoyancy box via a connecting pipe. The bottom of the buoyancy box is also connected to the annular tube via multiple connecting seats. By setting the connecting seats, on the one hand, it can ensure that the annular tube can be stably connected to the buoyancy box via the connecting pipe, and on the other hand, it can also play a role in balancing the center of gravity of the drone, so that the center of gravity of the drone will not be off-center.

[0022] 3. The amphibious drone of this utility model has a buoyancy box connected to a filling port at the top via a filling pipe. The filling port extends to the top surface of the drone body, making it convenient for users to add water, plant protection liquid, fire extinguishing agent, or other liquids into the buoyancy box. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0024] Figure 1 This is a front view of the overall structure of Embodiment 1 of this utility model;

[0025] Figure 2 This is a bottom view of the buoyancy box and annular tube assembly of Embodiment 1 of this utility model;

[0026] Figure 3 This is a utility model Figure 1 A magnified view of part A;

[0027] The components are as follows: 1. Body, 2. Support frame, 3. Buoyancy box, 4. Connecting pipe, 5. Switch valve, 6. Ring pipe, 7. Insertion pipe, 8. Rubber sealing ring, 9. Outlet, 10. Connecting seat, 11. Filling port, 12. Filling pipe, 13. Protective cover, 14. Anti-collision cone, 15. Wheel frame, 16. Traveling wheel, 17. Support arm, 18. Motor, 19. Rotor, 20. Support arm base. Detailed Implementation

[0028] Example 1

[0029] This embodiment provides an amphibious unmanned aerial vehicle (UAV), such as... Figures 1-3 As shown, it includes a body 1, and multiple rotor mechanisms are arranged circumferentially along the edge of the body 1. The rotor mechanisms are used for the take-off, landing and flight of the UAV.

[0030] The bottom surface of the body 1 is fixedly connected to the support 2, the support 2 is fixedly connected to the buoyancy box 3, and the buoyancy box 3 is coaxially arranged with the body 1. Specifically, the buoyancy box 3 is fixedly connected to the bottom end of a plurality of supports 2 arranged along the circumference, and the top end of the supports is fixedly connected to the body. Preferably, the buoyancy box is fixedly connected to the support 2 by bolts.

[0031] The buoyancy box 3 is made of non-metallic materials, such as plastic. The bottom area of ​​the buoyancy box is larger than the top area. After being placed on the water surface, it can float on the water surface, thereby using buoyancy to support the entire drone and realize the drone's horizontal landing and take-off.

[0032] In this embodiment, the buoyancy box 3 is used as a container that can hold liquids. When the drone is used for fire extinguishing, the buoyancy box is used to hold fire extinguishing agents. When the drone is used for crop irrigation, the buoyancy box is used to hold irrigation water. When the drone is used for agricultural plant protection, the buoyancy box is used to hold plant protection liquid.

[0033] Using the buoyancy box 3 as a container eliminates the need for additional containers on the amphibious drone when it is used for land-based firefighting, crop irrigation, or agricultural plant protection. This reduces the weight and size of the drone and lowers the requirements for the rotor drive mechanism.

[0034] In order to spray out the liquid in the buoyancy box 3, a main pipe is provided at the bottom of the buoyancy box. The main pipe is located inside the groove set in the bottom wall of the buoyancy box. One end of the main pipe is connected to the connecting pipe 4, and the other end of the connecting pipe 4 is fixedly connected to the bottom wall of the buoyancy box 3. The internal space of the buoyancy box 3 and the internal space of the main pipe are connected through the connecting pipe 4.

[0035] The bottom of the main pipe has multiple outlets. After the liquid in the buoyancy box 3 enters the main pipe, it can be sprayed out through the outlets under its own gravity, thus realizing the spraying of the liquid.

[0036] A switching valve 5 is provided on the connecting pipe. The switching valve 5 is used to control the opening and closing of the connecting pipe 4. Preferably, the switching valve 5 is an electrically controlled valve, such as an electrically controlled ball valve or an electrically controlled butterfly valve. Those skilled in the art can choose according to actual needs, and will not be described in detail here. The electrically controlled valve is connected to the control system installed on the machine body and can receive instructions from the control system to work.

[0037] When the control system controls the switch valve 5 to open, the liquid in the buoyancy tank 3 can enter the main pipe and then be sprayed out through the outlet. When the control system controls the switch valve 5 to close, the liquid in the buoyancy tank 3 cannot enter the main pipe, and the liquid cannot be sprayed out through the outlet of the main pipe.

[0038] In this embodiment, the main pipe is an annular pipe 6, which is coaxially arranged with the buoyancy box 3 and the body 1. One end of the annular pipe 6 is connected to the connecting pipe 4, and the other end of the connecting pipe 4 is fixedly connected to the bottom wall of the buoyancy box 3.

[0039] In one real-time configuration, flanges are provided at both ends of the connecting pipe 4. The top end of the connecting pipe 4 is fixedly connected to the bottom wall of the buoyancy box 3 by means of flanges and bolts. The bottom end of the connecting pipe 4 is fixedly connected to the flange at the inlet of the annular pipe 6 by means of flanges and bolts to realize the connection between the connecting pipe and the annular pipe.

[0040] In another real-time configuration, the bottom wall of the buoyancy tank 3 is provided with a connector 7, the top end of the connecting pipe 4 is inserted into the connector 7, and a rubber sealing ring 8 is provided between the connecting pipe 4 and the connector 7. The bottom end of the connecting pipe 4 is integrally connected to the annular pipe 6.

[0041] Furthermore, in order to facilitate the buoyancy box 3 to float on the water surface, the annular pipe 6, the connecting pipe 4, and the insertion pipe 7 are all made of PVC pipe, which has good corrosion resistance and can float on the water surface.

[0042] The bottom of the annular pipe 6 is provided with multiple outlets 9, which are distributed along the circumference of the annular pipe 6. Preferably, the multiple outlets 9 are distributed at equal intervals along the circumference of the annular pipe 6.

[0043] In one embodiment, the switching valve 5 is an existing waterproof electrically controlled ball valve. In another real-time mode, the switching valve 5 is a common electrically controlled ball valve. In this mode, in order to prevent the electrical control part of the electrically controlled valve from being submerged in water and damaged when the buoyancy box 3 floats on the water surface, a protective cover is provided on the outer periphery of the electrically controlled valve. The protective cover is detachably and fixedly connected to the connecting pipe 4.

[0044] Specifically, the protective cover includes a first protective part and a second protective part. The two opposite edges of the first and second protective parts are provided with flanges, and fixing holes are provided on the flanges. The first and second protective parts are fixedly connected through the fixing holes on the flanges and with bolts and nuts. After the first and second protective parts are connected, they form a space for accommodating the electrically controlled part of the electrically controlled valve. The portions of the first and second protective parts for the connecting pipe to pass through are provided with grooves. After the first and second protective parts are spliced ​​together, the grooves of the first and second protective parts form a hole for the connecting pipe to pass through. A rubber sealing ring is provided on the groove surface. After the first and second protective parts are spliced ​​and fixed, the rubber sealing ring compresses the connecting pipe, which serves both a sealing function and fixes the protective cover to the connecting pipe.

[0045] In this embodiment, the annular tube 6 is connected to the bottom wall of the buoyancy box 3 through a connecting tube 4. In order to ensure the stability of the annular tube 6 and the bottom wall of the buoyancy box 3, multiple connecting seats 10 are provided on the inner ring surface of the annular tube 6. The connecting seats 10 are fixedly connected to the bottom wall of the buoyancy box 3 by bolts. The connecting tube 4 and multiple connecting seats 10 together fix the annular tube.

[0046] In this embodiment, the connecting seat 10 serves two purposes: firstly, it reinforces the connection stability between the annular pipe 6 and the buoyancy box 3; secondly, it balances the overall center of gravity of the drone. Since the connecting pipe 4 and the switch valve 5 are off-center from the drone, the connecting seat 10 helps to adjust the overall center of gravity of the drone to the center. The specific location of the connecting seat can be determined according to the actual situation and will not be described in detail here.

[0047] Since only one connecting pipe 4 is installed, only one switching valve 5 is needed, which reduces the overall cost of the drone.

[0048] To facilitate the addition of the required liquid into the buoyancy tank 3, a filling port 11 is provided on the body. The top end of the filling port 11 extends to the top surface of the body 1, and the bottom end extends to the bottom surface of the body 1. The filling port 11 is connected to one end of the filling pipe 12, and the other end of the filling pipe 12 is connected to the top liquid inlet of the buoyancy tank 3.

[0049] Users can add the required liquid into the buoyancy tank 3 through the filling port 11, which is convenient and quick to operate.

[0050] Furthermore, the top surface of the body 1 is provided with a protective cover 13. One end of the protective cover 13 is hinged to the body 1 via a hinge or hinge joint, and the other end is provided with a first locking component between it and the body 1. When the buoyancy tank is not being filled, the protective cover is fastened to the top surface of the body, and the filling port is located inside the protective cover, which can prevent external impurities and debris from entering the buoyancy tank. When liquid needs to be added, simply loosen the first locking component, flip open the protective cover, expose the filling port, and the user can use the filling port to add the required liquid into the buoyancy tank.

[0051] In this embodiment, the first locking component is a buckle set at the end of the protective cover. Correspondingly, the top surface of the machine body is provided with a slot that matches the buckle. The buckle can engage with the slot to lock and fix the protective cover to the machine body.

[0052] In another embodiment, the first locking component is a locking plate fixed to the end of the protective cover 13. The top surface of the machine body is provided with a locking groove that matches the locking plate. The bottom groove surfaces of the locking plate and the locking groove are provided with matching fixing holes. Locking bolts can pass through the fixing holes, and the locking bolts are threadedly connected to the fixing holes opened in the locking groove, thereby realizing the fixed connection between the protective cover and the machine body.

[0053] Furthermore, the bottom edge of the buoyancy box 3 is provided with multiple anti-collision cones 14. The anti-collision cones 14 are made of the same material as the buoyancy box and are integrally connected with the buoyancy box 3. The anti-collision cones 14 adopt a cone-shaped structure, with the area of ​​one end being larger than the area of ​​the other end. The end with the larger area is integrally connected with the buoyancy box 3.

[0054] By setting up anti-collision cones 14, it is possible to prevent the buoyancy box of the entire drone from colliding and being damaged by surrounding structures during ground transportation.

[0055] Furthermore, to facilitate the movement of the entire drone on land, the bottom surface of the crash cone 14 is equipped with a wheel frame 15, and the wheel frame is rotatably connected to the walking wheels 16 via axles, allowing users to easily move the entire drone on the ground using the walking wheels 16.

[0056] The wheel frame 15, axle, and wheels 16 are coated with an anti-rust coating to prevent corrosion when immersed in water. The anti-rust coating can be applied using existing materials and will not be described in detail here.

[0057] A rotor mechanism is provided at the bottom edge of the body 1. The rotor mechanism is used to provide lift for the UAV. There are four, six or more rotor mechanisms. Those skilled in the art can set them according to actual needs. In this embodiment, four rotor mechanisms are provided. The rotor mechanism includes a support arm 17. One end of the support arm 17 is connected to the body 1, and the other end is provided with a rotation drive. In this embodiment, the rotation drive is a motor 18. The motor 18 is connected to the support arm 17, and the output shaft of the motor 18 is connected to the rotor 19.

[0058] The structure and connection method of the outrigger 17, motor 18 and rotor 19 can be achieved using existing UAV technology, and further technical details will not be described in detail here.

[0059] Furthermore, to facilitate the transportation of the entire drone, the support arm 17 is rotatably connected to the support arm seat 20 provided on the bottom surface of the body 1, and a second locking component is provided between the support arm and the support arm seat 20.

[0060] Specifically, the support arm base 20 is provided with a rotating shaft, and the support arm 17 is rotatably connected to the rotating shaft. The second locking component is a locking nut, which is threadedly connected to the rotating shaft. When the locking nut is rotated, the locking nut can press the support arm 17 onto the support arm base 20, thereby achieving the locking and fixing of the support arm 17 and the support arm base 20.

[0061] In another embodiment, the support arm 17 can also be locked and fixed to the rotating shaft by friction. Only when the external load received by the support arm 17 is greater than the set value can it overcome the friction and rotate.

[0062] The control system is installed inside the body 1. The installation position of the control system inside the body 1 should meet the position requirements of the center of gravity of the entire UAV. This will not be described in detail here. The control system is connected to the switching valve and the motor, and can control the operation of the switching valve and the motor. At the same time, the control system is equipped with a wireless transmission module. The control system works with the remote controller through the wireless transmission module, and the user can send commands to the control system through the remote controller.

[0063] Furthermore, when the drone is equipped with radar, the radar is used to detect the ground conditions. In this case, a channel for installing the radar is set in the middle of the drone body. Correspondingly, the buoyancy box 3 adopts an annular box with a channel for radar operation in the middle.

[0064] When firefighting is required, the amphibious drone of this embodiment can add fire extinguishing agent into the buoyancy tank 3 through the filling port 11. After reaching the fire extinguishing position, it sends a command to the control system via remote control. The control system controls the opening of the switch valve, and the fire extinguishing agent in the buoyancy tank enters the annular pipe and is sprayed out from the outlet to extinguish the fire.

[0065] When irrigation is needed, irrigation water can be added to the buoyancy box 3 through the filling port 11. After reaching the irrigation position, a command is sent to the control system via remote control. The control system controls the switch valve to open, and the irrigation water in the buoyancy box enters the ring pipe and is sprayed out from the outlet to irrigate the crops.

[0066] When crop protection is needed, plant protection solution can be added into the buoyancy box 3 through the filling port 11. After reaching the location of the crop, a command is sent to the control system via remote control. The control system controls the opening of the switch valve, and the plant protection solution in the buoyancy box enters the ring pipe and is sprayed out from the outlet to protect the crop.

[0067] The entire drone can also land and take off horizontally via the buoyancy box 3. When the drone needs to land on the water, the switch valve 5 needs to be opened to discharge the liquid in the buoyancy box 3 to prevent the buoyancy box 3 from sinking after it lands on the water. After the buoyancy box 3 lands on the water, even if water can enter the annular pipe 6 through the outlet, the buoyancy generated by the buoyancy box 3 can still ensure that the drone floats on the water and does not sink.

[0068] In this embodiment, the buoyancy box 3 of the drone can be used as a buoyancy component for landing and taking off on the water surface, or it can be used to hold liquids such as water, plant protection liquid, or fire extinguishing agent for agricultural irrigation, plant protection, or fire extinguishing. The outlet is located at the bottom of the main pipe, and the liquid contained in the buoyancy box can be sprayed out by its own gravity, eliminating the need for a corresponding liquid tank and pump body, reducing the size and weight of the drone, simplifying the structure of the drone, reducing the requirements for the drone rotor system drive equipment, and thus reducing the manufacturing cost of the drone.

[0069] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. An amphibious unmanned aerial vehicle (UAV), comprising a fuselage, a plurality of rotor mechanisms disposed on the outer edge of the fuselage, and a support frame disposed at the bottom of the fuselage, the support frame being connected to a buoyancy box made of non-metallic material, characterized in that, The bottom of the buoyancy tank is fixed with a main pipe through a connecting pipe. The main pipe is connected to the internal space of the buoyancy tank. The bottom of the main pipe has multiple outlets. A switch valve is provided on the connecting pipe. An injection port is provided inside the machine body. The injection port is connected to the buoyancy tank through a filling pipe. The injection port extends to the top surface of the machine body. The top surface of the machine body is hinged to one end of the protective cover. The other end of the protective cover is provided with a first locking component between it and the machine body.

2. The amphibious unmanned aerial vehicle as described in claim 1, characterized in that, The main pipe is an annular pipe, which is coaxially arranged with the buoyancy box. The annular pipe is connected to the bottom wall of the buoyancy box through a connecting pipe. The lower part of the annular pipe wall has multiple outlets along the circumferential direction.

3. The amphibious unmanned aerial vehicle as described in claim 2, characterized in that, Multiple outlets are evenly spaced along the circumferential direction of the annular pipe.

4. The amphibious unmanned aerial vehicle as described in claim 2, characterized in that, The bottom wall of the buoyancy tank is connected to the annular pipe via a connecting pipe. The annular pipe is also provided with multiple connecting seats, which are fixedly connected to the bottom wall of the buoyancy tank.

5. The amphibious unmanned aerial vehicle as described in claim 1, characterized in that, Both the main pipe and the connecting pipe are made of PVC pipe; the top and bottom ends of the connecting pipe are equipped with flanges, and the connecting pipe is fixedly connected to the bottom wall of the buoyancy box and the main pipe through the flanges. or, Both the main pipe and the connecting pipe are made of PVC pipe. The bottom wall of the buoyancy box is provided with a plug pipe, and the connecting pipe is inserted into the plug pipe and a sealing ring is provided between the connecting pipe and the plug pipe.

6. The amphibious unmanned aerial vehicle as described in claim 1, characterized in that, The switching valve is an electrically controlled valve, which is connected to the control system installed on the machine body and can operate by receiving instructions from the control system.

7. The amphibious unmanned aerial vehicle as described in claim 1, characterized in that, The outer periphery of the switching valve is equipped with a protective cover, which is detachably and fixedly connected to the connecting pipe.

8. An amphibious unmanned aerial vehicle as described in claim 1, characterized in that, The bottom outer perimeter of the buoyancy box is provided with a crash cone. The crash cone is made of the same material as the buoyancy box and is integrally connected to the buoyancy box. A wheel frame is connected to the bottom surface of the crash cone, and the wheel frame is equipped with a traveling wheel.

9. An amphibious unmanned aerial vehicle as described in claim 1, characterized in that, The rotor mechanism includes a support arm connected to the fuselage. One end of the support arm is connected to the fuselage, and the other end is provided with a rotation drive component. The rotation drive component is connected to the rotor to drive the rotor to rotate.

10. An amphibious unmanned aerial vehicle as described in claim 9, characterized in that, The support arm is rotatably connected to the machine body, and a second locking component is provided between the support arm and the machine body.

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