A UAV external hydrogen storage tank detachment device, UAV and detachment method

Abstract

The present invention discloses a detachment device for an external hydrogen storage tank of a drone, a drone and a detachment method. The detachment device for an external hydrogen storage tank of a drone comprises a mounting seat, a disconnection assembly and a pipeline lock subassembly; the disconnection assembly comprises the disconnection drive connected to the mounting seat and a disconnection piece connected to the output end of the disconnection drive, and the disconnection drive can drive the disconnection piece to connect and disconnect from the external hydrogen storage tank; the pipeline lock subassembly comprises a lock sub-drive connected to the mounting seat and a lock sub-device connected to the output end of the lock sub-drive, and the lock sub-drive can drive the lock sub-device to lock and separate the pipeline joint of the external hydrogen storage tank. The disconnection assembly and pipeline lock subassembly of the present invention thus realize the loosening of the freedom of the external hydrogen storage tank in the front and back and up and down directions, and the external hydrogen storage tank can be dropped in a free fall manner under the action of its own gravity, which greatly reduces the overall deadweight and flight resistance of the drone.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a device for detaching an external hydrogen storage tank of an unmanned aerial vehicle, an unmanned aerial vehicle and a detachment method. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and a self-contained program control device, or operated completely or intermittently autonomously by an onboard computer. A hydrogen fuel cell drone is a new energy drone powered by hydrogen fuel cells. Compared with lithium batteries, hydrogen fuel cells have a higher energy density. Under the same flight conditions, the flight time of a hydrogen fuel cell drone far exceeds that of a lithium battery drone. Hydrogen fuel cell drones have a wide range of applications due to their low noise, pollution-free, and long flight time.

[0003] The hydrogen storage tank is used to store hydrogen fuel, and the hydrogen storage tank is provided with a pipe joint and transmits hydrogen fuel to the hydrogen fuel cell through the pipe joint; at present, the requirements for flight time, ceiling, flight speed and range of drones are getting higher and higher, and the volume of the hydrogen storage tank and the number of loads on board determine the performance indicators of hydrogen fuel cell drones during flight. In the prior art, the installation and fixation of the hydrogen storage tank is achieved by loading inside the fuselage and lifting on the belly of the fuselage, wherein the external hydrogen storage tank is hoisted with the belly of the fuselage by connecting the lifting lugs; however, the hydrogen storage tank itself is large in volume and heavy in weight, and the externally suspended hydrogen storage tank increases the flight resistance of the drone during cruising; after the fuel of the externally hoisted tank is exhausted, it will affect the ceiling, flight speed and flight time of the drone performing high-altitude cruising missions. Summary of the invention

[0004] The purpose of the present invention is to provide a UAV external hydrogen storage tank detachment device, a UAV and a detachment method, so as to solve the problem that the externally suspended hydrogen storage tank increases the flight resistance of the UAV during cruising.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A device for disengaging an external hydrogen storage tank of an unmanned aerial vehicle comprises: a mounting seat for connecting to the belly of the unmanned aerial vehicle; a disconnection assembly, comprising a disconnection drive connected to the mounting seat and a disconnection piece connected to an output end of the disconnection drive, wherein the disconnection drive can drive the disconnection piece to connect to and disconnect from a connecting lug of an external hydrogen storage tank; a pipeline locking subassembly, comprising a locking sub-drive connected to the mounting seat and a locking sub-device connected to the output end of the locking sub-drive, wherein the locking sub-drive can drive the locking sub-device to lock and separate a pipeline joint of an external hydrogen storage tank.

[0007] Furthermore, the lock device includes a movable lock nut, which has a connecting hole for the pipe joint to pass through and can be connected to the pipe joint. The lock drive can drive the movable lock nut to approach the pipe joint and lock the pipe joint, and the lock drive can drive the movable lock nut away from the pipe joint and separate from the pipe joint.

[0008] Furthermore, the pipeline lock subassembly also includes a connecting support, a transmission seat, a connecting cylinder, and a valve installed on the lock sub-drive. The connecting support, the transmission seat, the movable lock nut, and the connecting cylinder are sequentially inserted from the outside to the inside, and the end portion of the transmission seat facing the pipeline joint protrudes from the connecting support. A clamping limit structure is formed between the inner wall of one end of the movable lock nut close to the connecting cylinder and the outer wall of one end of the connecting cylinder, and the valve is installed at the other end of the connecting cylinder; the lock sub-drive can drive the movable lock nut to rotate circumferentially through the transmission seat, and the movable lock nut can slide back and forth along the axial direction of the connecting cylinder to approach or move away from the pipeline joint.

[0009] Furthermore, a first gear ring is arranged on the outer periphery of the transmission seat, and a second gear ring is arranged on the output end of the lock drive, and the first gear ring is meshed with the second gear ring.

[0010] Furthermore, the mounting seat is provided with at least one connecting seat, which has a receiving groove capable of accommodating a connecting ear of an external hydrogen storage tank, and a first connecting hole and a second connecting hole respectively penetrating the two groove walls of the receiving groove; the disconnecting member includes a rotating rod connected to the output end of the disconnecting drive, and at least one connecting rod hinged to the rotating rod, the connecting rod includes a rocker arm hinged to the rotating rod and a connecting arm hinged to the other end of the rocker arm, and the connecting arm can sequentially penetrate the first connecting hole, the connecting ear and the second connecting hole to connect to the external hydrogen storage tank.

[0011] Furthermore, the mounting seat is a hollow structure, the connecting seat and the disconnecting assembly are both arranged inside the mounting seat, and a through groove for the connecting ear of the external hydrogen storage tank to pass through is provided at the bottom of the mounting seat at the position of the connecting seat, and the through groove is connected to the accommodating groove.

[0012] Furthermore, a receiving groove is provided at the bottom of the mounting seat, and the receiving groove is communicated with the hollow structure; the UAV external hydrogen storage tank detachment device also includes a folding mechanism, and the folding mechanism includes a folding drive installed in the mounting seat, and the output end of the folding drive is connected to the pipeline lock subassembly, and the folding drive can drive the pipeline lock subassembly to enter or protrude from the receiving groove of the mounting seat.

[0013] Furthermore, the folding mechanism also includes a lifting and fixing plate installed on the mounting seat, a lifting seat installed on the pipeline lock subassembly, and two scissor-type lifting arms arranged at intervals, one end of the lifting and fixing plate is provided with two parallel and spaced first slide grooves, one end of the lifting seat is provided with two parallel and spaced second slide grooves, one end of the upper part of the two scissor-type lifting arms is slidably connected to the two first slide grooves through a first sliding rod, and the other end is connected to the lifting and fixing plate through a first connecting shaft; one end of the lower part of the two scissor-type lifting arms is slidably connected to the two second slide grooves through a second sliding rod, and the other end is connected to the lifting seat through a second connecting shaft, and the first sliding rod is connected to the output end of the folding drive.

[0014] Another object of the present invention is to provide a drone, comprising a drone body, an internal hydrogen storage tank arranged inside the drone body, a hydrogen storage tank detachment device installed on the belly of the drone body, and an external hydrogen storage tank connected to the hydrogen storage tank detachment device; the drone body has an airborne delivery controller, the drone body or the lock and release device of the hydrogen storage tank detachment device is provided with a detection unit capable of detecting the fuel consumption in the external storage tank, the airborne delivery controller is respectively connected to the detection unit, the disconnection drive and the lock and release drive of the hydrogen storage tank detachment device; the hydrogen storage tank detachment device is any one of the above-mentioned drone external hydrogen storage tank detachment devices.

[0015] Another object of the present invention is to provide a detachment method, which is applied to the above-mentioned UAV, including: a fuel consumption detection step: the detection unit obtains the fuel consumption information in the external storage tank, and transmits a signal to the airborne delivery controller when the fuel consumption in the external storage tank is completed; a pipeline separation step: the airborne delivery controller sends a pipeline separation movement instruction after determining that the fuel has been consumed, and the lock drive drives the lock to separate from the pipeline joint of the external hydrogen storage tank; an external hydrogen storage tank separation step: the airborne delivery controller sends a movement instruction for separating the external hydrogen storage tank after determining that the fuel has been consumed, and the disconnection drive drives the disconnection component to disconnect from the connecting ear of the external hydrogen storage tank.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: when installing the external hydrogen storage tank, the connection of the external hydrogen storage tank is achieved through the disconnection component, and the locking of the pipe joint of the external hydrogen storage tank is achieved by setting the pipeline lock subassembly; after the hydrogen fuel in the external hydrogen storage tank is consumed, the disconnection drive can drive the disconnection component to separate from the connecting ear of the external hydrogen storage tank, so as to achieve the free movement of the external hydrogen storage tank in the up and down directions, and the lock sub-drive can drive the lock sub-device to separate from the pipe joint of the external hydrogen storage tank, so as to achieve the free movement of the external hydrogen storage tank in the front and back directions, thereby achieving the loosening of the freedom of the external hydrogen storage tank in the front and back and up and down directions, and the external hydrogen storage tank can be dropped in a free fall manner under the action of its own gravity, which greatly reduces the overall weight and flight resistance of the drone, thereby achieving the improvement of the flight altitude, speed and flight time of the drone, which helps to improve the efficiency of the drone in performing tasks.

[0017] The drone provided by the present invention includes the aforementioned drone external hydrogen storage tank detachment device, and thus has the same function as the drone external hydrogen storage tank detachment device.

[0018] The detachment method provided by the present invention is applied to the aforementioned UAV, and thus has the same function as the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a device for detaching an external hydrogen storage tank of a UAV disclosed in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0021] Figure 3 for Figure 1 Another structural diagram of the UAV's external hydrogen tank detachment device from another perspective;

[0022] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0023] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part B;

[0024] Figure 6 A schematic diagram of the structure in which the disconnection assembly, the pipeline lock subassembly, and the folding mechanism disclosed in the embodiment of the present invention are installed on the top plate of the mounting seat;

[0025] Figure 7 for Figure 1 Another perspective structural diagram of the UAV's external hydrogen tank detachment device;

[0026] Figure 8A schematic diagram of the structure of a UAV external hydrogen storage tank detachment device connected to an external hydrogen storage tank disclosed in an embodiment of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of an external hydrogen storage tank disclosed in an embodiment of the present invention;

[0028] Fig.10 The present invention is a schematic structural diagram of a drone disclosed in an embodiment of the present invention.

[0029] In the figure: 1, mounting seat; 11, connecting seat; 111, receiving groove; 112, first connecting hole; 113, second connecting hole; 12, top plate; 13, through groove; 14, receiving groove; 2, disconnection assembly; 21, disconnection drive; 22, disconnection member; 221, rotating rod; 222, rocker arm; 223, connecting arm; 3, pipeline lock subassembly; 31, lock subdrive; 32, movable lock nut; 321, connecting hole; 33, connecting support; 34, transmission seat; 341, first gear ring; 342, contour hole ; 35. Connecting tube; 36. Valve; 37. Second gear ring; 38. Card-connecting limit structure; 39. Bearing; 4. Folding mechanism; 41. Folding drive; 42. Lifting and fixing plate; 43. Lifting seat; 44. Scissor-type lifting arm; 45. First slide groove; 46. Second slide groove; 47. First slide rod; 48. First connecting shaft; 49. Second slide rod; 410. Second connecting shaft; 10. External hydrogen storage tank; 20. Pipe joint; 30. Connecting ear; 301. Docking hole; 40. UAV body. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] In this article, the terms "upper, lower, inside, outside" and the like are established based on the positional relationships shown in the drawings. The corresponding positional relationships may also change depending on the drawings, and therefore cannot be understood as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second" and the like are merely used to distinguish one component from another with the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0032] Embodiment 1

[0033] like Figure 1-8As shown, the present embodiment discloses a device for disengaging an external hydrogen storage tank of a UAV, which includes a mounting seat 1, a disconnecting assembly 2, and a pipeline locking subassembly 3. The mounting seat 1 is used to connect to the belly of the UAV, and the disconnecting assembly 2 includes a disconnecting drive 21 connected to the mounting seat 1, and a disconnecting member 22 connected to the output end of the disconnecting drive 21, and the disconnecting drive 21 can drive the disconnecting member 22 to connect and disconnect from the connecting ear 30 of the external hydrogen storage tank 10; the pipeline locking subassembly 3 includes a locking sub-drive 31 connected to the mounting seat 1, and a locking sub-device connected to the output end of the locking sub-drive 31, and the locking sub-drive 31 can drive the locking sub-device to lock and separate with the pipeline joint 20 of the external hydrogen storage tank 10.

[0034] Specifically, the drone external hydrogen storage tank detachment device is installed on the belly of the drone through the mounting seat 1, so that the drone external hydrogen storage tank detachment device and the drone form a whole; when the external hydrogen storage tank 10 is installed, the connection of the external hydrogen storage tank 10 is realized by the disconnection component 2, and the locking of the pipeline joint 20 of the external hydrogen storage tank 10 is realized by setting the pipeline lock subassembly 3; after the hydrogen fuel in the external hydrogen storage tank 10 is consumed, the disconnection drive 21 can drive the disconnection member 22 to disconnect from the connection ear 30 of the external hydrogen storage tank 10, so as to realize the external hydrogen storage The tank 10 can move freely in the up and down directions, and the lock drive 31 can drive the lock to separate from the pipe joint 20 of the external hydrogen storage tank 10, so as to realize the free movement of the external hydrogen storage tank 10 in the front and back directions, thereby realizing the loosening of the freedom of the external hydrogen storage tank 10 in the front and back and up and down directions. The external hydrogen storage tank 10 can be dropped in a free fall manner under the action of its own gravity, which greatly reduces the overall weight and flight resistance of the drone, and thus can realize the improvement of the flight altitude, speed and flight time of the drone, which helps to improve the efficiency of the drone in performing tasks.

[0035] More specifically, Fig. 9 As shown, the external hydrogen storage tank 10 is provided with a connecting ear 30 with a docking hole 301, and the disconnecting piece 22 can be connected to or disconnected from the docking hole 301 under the drive of the disconnecting drive 21. It can be understood that the specific forms of the disconnecting piece 22 and the disconnecting drive 21 are not limited, as long as they can be connected to or disconnected from the docking hole 301; of course, the specific forms of the lock and the lock drive 31 are also not limited, as long as they can achieve locking, sealing or separation with the pipe joint 20 of the external hydrogen storage tank 10.

[0036] Embodiment 2

[0037] The same parts in this embodiment as those in the first embodiment are given the same figure marks, and the same text descriptions are omitted.

[0038] Compared with the first embodiment, the external hydrogen storage tank detachment device of the drone provided in this embodiment has the following different structural designs: Figure 2 and Figure 5As shown, the lock separator includes a movable lock nut 32, which has a connection hole 321 for the pipe joint 20 to pass through and can be connected to the pipe joint 20. The lock separator drive 31 can drive the movable lock nut 32 to approach the pipe joint 20 and lock the pipe joint 20, and the lock separator drive 31 can drive the movable lock nut 32 away from the pipe joint 20 and separate from the pipe joint 20. The movable lock nut 32 and the pipe joint 20 can be connected by threads, such as Figure 2 As shown, at this time, the lock drive 31 is a rotation drive, which drives the mobile lock nut 32 to rotate forward to realize the threaded connection between the mobile lock nut 32 and the pipe connector 20, or the lock drive 31 drives the mobile lock nut 32 to rotate in the opposite direction to move away from the pipe connector 20, so as to realize the separation of the mobile lock nut 32 from the pipe connector 20; of course, the mobile lock nut 32 and the pipe connector 20 can also adopt other connection forms, for example: the lock drive 31 is a telescopic drive, which drives the mobile lock nut 32 to move axially to approach the pipe connector 20 and insert it into the pipe connector 20 or the pipe connector 20 is inserted into the mobile lock nut 32, so as to realize the connection between the mobile lock nut 32 and the pipe connector 20, or the lock drive 31 drives the mobile lock nut 32 to move axially in another direction to move away from the pipe connector 20, so as to realize the separation of the mobile lock nut 32 from the pipe connector 20, and the specific connection form between the mobile lock nut 32 and the pipe connector 20 is not limited. It can be understood that the reverse rotation and reverse rotation of the mobile lock nut 32 are relative concepts without specific direction restrictions.

[0039] Furthermore, if Figure 2 , Figure 4 and Figure 5 As shown, the pipeline lock subassembly 3 also includes a connecting support 33, a transmission seat 34, a connecting cylinder 35, and a valve 36 installed on the lock sub-drive 31. The connecting support 33, the transmission seat 34, the movable lock nut 32, and the connecting cylinder 35 are sequentially mounted from the outside to the inside. The end portion of the transmission seat 34 facing the pipeline joint 20 protrudes from the connecting support 33, and a clamping limit structure 38 is formed between the inner wall of the end of the movable lock nut 32 close to the connecting cylinder 35 and the outer wall of the end of the connecting cylinder 35. The valve 36 is installed at the other end of the connecting cylinder 35; the lock sub-drive 31 can drive the movable lock nut 32 to rotate circumferentially through the transmission seat 34, and the movable lock nut 32 can slide back and forth along the axial direction of the connecting cylinder 35 to approach or move away from the pipeline joint 20. In order to ensure that the transmission seat 34 can rotate circumferentially, a bearing 39 is provided between the transmission seat 34 and the connecting support 33. In order to facilitate the installation of the bearing 39, the connecting support 33 is a split structure.

[0040] Specifically, the transmission seat 34 has a contoured hole 342 that is adapted to the outer wall of the movable lock nut 32. The axial projection of the contoured hole 342 is polygonal. The setting of the contoured hole 342 realizes the restriction of the movable lock nut 32. At this time, the movable lock nut 32 can rotate circumferentially with the transmission seat 34 and the movable lock nut 32 can slide axially relative to the transmission seat 34. In the actual use of the pipeline lock subassembly 3, the threaded connection between the movable lock nut 32 and the pipeline connector 20 is taken as an example for detailed description. The lock subassembly 31 is a rotation drive, and the rotation drive can drive the transmission seat 34 to rotate in the positive circumferential direction to drive the internal thread of the movable lock nut 32 to cooperate with the external thread of the pipeline connector 20, so that the movable lock nut 32 slides axially along the connecting tube 35 and gradually connects with the pipeline connector 20. After the movable lock nut 32 moves to the maximum stroke, the effective connection between the movable lock nut 32 and the pipeline connector 20 is realized; when the external hydrogen storage tank 10 needs to be dismantled, the rotation drive can drive the transmission seat 34 to rotate in the reverse circumferential direction to drive the internal thread of the movable lock nut 32 to withdraw from the cooperation with the external thread of the pipeline connector 20, so that the movable lock nut 32 slides axially along the connecting tube 35 and gradually separates from the pipeline connector 20 until the movable lock nut 32 moves to be completely separated from the pipeline connector 20.

[0041] Furthermore, a first gear ring 341 is provided on the outer periphery of the transmission seat 34, and a second gear ring 37 is provided on the output end of the lock drive 31, and the first gear ring 341 is meshed with the second gear ring 37; through the meshing cooperation between the first gear ring 341 and the second gear ring 37, the stability of the transmission of the lock drive 31 to the movable lock nut 32 via the transmission seat 34 is improved. Of course, other transmission methods can also be used between the lock drive 31 and the movable lock nut 32, and there is no limitation here, as long as effective transmission can be achieved.

[0042] Furthermore, the mounting base 1 is provided with at least one connecting base 11, the connecting base 11 having a receiving groove 111 capable of accommodating a connecting ear 30 of an external hydrogen storage tank 10, and a first connecting hole 112 and a second connecting hole 113 respectively penetrating the two groove walls of the receiving groove 111; the disconnecting member 22 comprises a rotating rod 221 connected to the output end of the disconnecting drive 21, and at least one connecting rod hinged to the rotating rod 221, the connecting rod comprising a rocker arm 222 hinged to the rotating rod 221 and a connecting arm 223 hinged to the other end of the rocker arm 222, the connecting arm 223 being capable of penetrating the first connecting hole 112 and the second connecting hole 113 to connect the connecting ear 30 and the connecting base 11.

[0043] Specifically, Figure 4 and Figure 6As shown, in order to improve the stability and balance of the installation of the external hydrogen storage tank 10, the top plate 12 of the mounting seat 1 is provided with two connecting seats 11 at intervals along the installation direction of the external hydrogen storage tank 10, and correspondingly, the disconnecting member 22 includes two connecting rods hinged to the rotating rod 221, and the connecting rods correspond to the connecting seats 11 one by one; wherein, when the disconnecting member 22 is not connected to the external hydrogen storage tank 10, it is in an initial state, in which one of the rocker arms 222 is swung down and the other rocker arm 222 is swung up, and the end of the connecting arm 223 away from the rocker arm 222 is located in the first connecting hole 112, so as to prevent the connecting arm 223 from interfering with the connecting ear 30 entering the receiving groove 111, and at the same time prevent the connecting arm 223 from being separated from the first connecting hole 112; more specifically, when the disconnecting member 22 is connected to the external hydrogen storage tank 10, the connecting ear 30 of the external hydrogen storage tank 10 enters the receiving groove 111, so that the connecting ear 30 on the connecting ear 30 The docking hole 301 is coaxial with the first connecting hole 112 and the second connecting hole 113. At this time, the disconnecting drive 21 can drive the rotating rod 221 to rotate in one direction, and the rotating rod 221 pulls the downward swinging rocker arm 222 to swing up to approximately horizontal, and the upward swinging rocker arm 222 to swing down to approximately horizontal, thereby pushing the connecting arm 223 to sequentially penetrate the first connecting hole 112, the docking hole 301 of the connecting ear 30 and the second connecting hole 113 to connect the external hydrogen storage tank 10; when the disconnecting member 22 is disconnected from the external hydrogen storage tank 10, the disconnecting drive 21 can drive the rotating rod 221 to rotate in another direction or the same direction, and the rotating rod 221 pulls one rocker arm 222 to swing down and the other rocker arm 222 to swing up, thereby pulling the connecting arm 223 to sequentially exit the second connecting hole 113 and the docking hole 301 of the connecting ear 30, and the disconnecting member 22 returns to the initial state and is disconnected from the external hydrogen storage tank 10.

[0044] More specifically, the sequence of the separation operation of the disconnection assembly 2 and the external hydrogen storage tank 10 and the separation operation of the pipeline lock subassembly 3 and the pipeline connector 20 of the external hydrogen storage tank 10 is not limited and can be performed simultaneously or in steps.

[0045] Furthermore, if Figure 4 As shown, the mounting base 1 is a hollow structure, the connecting base 11 and the disconnecting assembly 2 are both arranged inside the mounting base 1, and a through groove 13 for the connecting ear 30 of the external hydrogen storage tank 10 to pass through is provided at the bottom of the mounting base 1 at the position of the connecting base 11, and the through groove 13 is connected to the accommodating groove 111; in order to increase the service life of the disconnecting assembly 2, the mounting base 1 is set as a hollow structure to protect the disconnecting assembly 2, and at the same time, the weight of the mounting base 1 is reduced, thereby reducing the flight resistance of the mounting base 1.

[0046] Embodiment 3

[0047] The same parts as those in the first and second embodiments of the present embodiment are given the same reference numerals, and the same text descriptions are omitted.

[0048] Compared with the second embodiment, the external hydrogen storage tank detachment device of the drone provided in this embodiment has the following different structural design: Figure 7 As shown, a receiving groove 14 is also provided at the bottom of the mounting seat 1, and the receiving groove 14 is connected to the hollow structure; the UAV external hydrogen storage tank detachment device also includes a folding mechanism 4, and the folding mechanism 4 includes a folding drive 41 installed in the mounting seat 1, and the output end of the folding drive 41 is connected to the pipeline lock subassembly 3, and the folding drive 41 can drive the pipeline lock subassembly 3 to enter or protrude from the receiving groove 14 of the mounting seat 1.

[0049] Specifically, when it is necessary to connect to the external hydrogen storage tank 10, the folding drive 41 drives the pipeline lock subassembly 3 to protrude from the receiving groove 14 of the mounting seat 1, so as to facilitate the connection between the pipeline lock subassembly 3 and the management connector 20 of the external hydrogen storage tank 10; after the external hydrogen storage tank 10 is separated from the pipeline lock subassembly 3, in order to reduce the flight resistance of the pipeline lock subassembly 3, the pipeline lock subassembly 3 is driven by the folding drive 41 to enter the receiving groove 14 of the mounting seat 1 to ensure the flight height and speed of the UAV.

[0050] Furthermore, if Figure 4 and Figure 6 As shown, the folding mechanism 4 also includes a lifting and fixing plate 42 installed on the mounting seat 1, a lifting seat 43 installed on the pipeline lock subassembly 3, and two scissor-type lifting arms 44 arranged at intervals. One end of the lifting and fixing plate 42 is provided with two parallel and spaced first slide grooves 45, and one end of the lifting seat 43 is provided with two parallel and spaced second slide grooves 46. The upper ends of the two scissor-type lifting arms 44 are slidably connected to the two first slide grooves 45 through a first slide bar 47, and the other ends are connected to the lifting and fixing plate 42 through a first connecting shaft 48; the lower ends of the two scissor-type lifting arms 44 are slidably connected to the two second slide grooves 46 through a second slide bar 49, and the other ends are connected to the lifting seat 43 through a second connecting shaft 410, and the first slide bar 47 is connected to the output end of the folding drive 41.

[0051] Specifically, when the pipeline lock subassembly 3 is located in the mounting seat 1, the folding mechanism 4 is in an initial state. At this time, the first slide bar 47 is in the first slide groove 45 close to one end of the folding drive 41, the second slide bar 49 is in the second slide groove 46 close to one end of the folding drive 41, and the scissors-type lifting arm 44 is in a retracted state; when the folding mechanism 4 pushes the pipeline lock subassembly 3 out of the mounting seat 1, the folding drive 41 extends and pushes the first slide bar 47 to slide along the first slide groove 45, and the scissors-type lifting arm 44 gradually unfolds to a specific position, realizing the change of the position of the pipeline lock subassembly 3; when the folding mechanism 4 retracts the pipeline lock subassembly 3 into the mounting seat 1, the folding drive 41 contracts and pulls the first slide bar 47 to slide in the other direction of the first slide groove 45, and the scissors-type lifting arm 44 gradually contracts to the initial state.

[0052] Embodiment 4

[0053] In this embodiment, the same parts as those in Embodiments 1, 2, and 3 are given the same figure marks, and the same text descriptions are omitted.

[0054] The present invention also discloses a drone, such as Fig.10 As shown, it includes a drone body 40, an internal hydrogen storage tank (not shown in the figure) arranged inside the drone body 40, a hydrogen storage tank detachment device installed on the belly of the drone body 40, and an external hydrogen storage tank 10 connected to the hydrogen storage tank detachment device; the drone body 40 has an airborne delivery controller, and the drone body 40 or the lock separator of the hydrogen storage tank detachment device is provided with a detection unit capable of detecting the fuel consumption in the external storage tank, and the airborne delivery controller is respectively connected to the detection unit, the disconnection drive 21 and the lock separator drive 31 of the hydrogen storage tank detachment device by telecommunication; the hydrogen storage tank detachment device is a drone external hydrogen storage tank 10 detachment device of any of the above embodiments. It can be understood that the airborne delivery controller can also be connected to the folding mechanism 41 by telecommunication.

[0055] Specifically, the detection unit can be arranged in the lock distributor to detect the air pressure in the external hydrogen storage tank 10. When the air pressure in the external hydrogen storage tank 10 reaches or is lower than the set value, the fuel in the external hydrogen storage tank 10 is consumed. At this time, the airborne delivery controller controls the switching of the internal tank body for fuel supply; or, the detection unit can be arranged in the drone body 40 to detect the voltage data. When the fuel in the external hydrogen storage tank 10 is consumed, the voltage drops sharply. At this time, the airborne delivery controller controls the switching of the internal tank body for fuel supply; wherein, the switching of the internal and external hydrogen storage tanks to supply fuel belongs to the prior art, and its switching structure and principle belong to the prior art, which will not be repeated here. In addition, in order to ensure the normal operation of the drone, the specific actions of the drone's external hydrogen storage tank detachment device are all performed after the switching of the internal and external hydrogen storage tanks to supply fuel. The overall deadweight and flight resistance of the drone provided by the present invention are greatly reduced, thereby being able to achieve the improvement of the drone's flight altitude, speed and flight time, which helps to improve the efficiency of the drone in performing tasks.

[0056] Embodiment 5

[0057] In this embodiment, the same parts as those in Embodiments 1, 2, 3 and 4 are given the same figure marks, and the same text descriptions are omitted.

[0058] The present invention also discloses a separation method, which is applied to the above-mentioned UAV, and includes: a fuel consumption detection step, a pipeline separation step, and an external hydrogen storage tank 10 separation step; a fuel consumption detection step: the detection unit obtains the fuel consumption information in the external storage tank, and transmits a signal to the airborne delivery controller when the fuel consumption in the external storage tank is completed; a pipeline separation step: the airborne delivery controller sends a pipeline separation movement instruction after determining that the fuel has been consumed, and the lock separation drive 31 drives the lock separation device to separate from the pipeline connector 20 of the external hydrogen storage tank 10; an external hydrogen storage tank 10 separation step: the airborne delivery controller sends a movement instruction for separating the external hydrogen storage tank 10 after determining that the fuel has been consumed, and the disconnection drive 21 drives the disconnection component 22 to disconnect from the connecting ear 30 of the external hydrogen storage tank 10.

[0059] Through the detachment method provided by the present invention, the UAV can automatically detach from the external hydrogen storage tank 10 during flight according to actual conditions, and the overall weight and flight resistance of the UAV are greatly reduced.

[0060] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A device for separating an external hydrogen storage tank of a drone, characterized in that: include: A mounting base for connecting to the belly of the drone; A disconnect assembly, comprising a disconnect drive connected to a mounting seat, and a disconnect member connected to an output end of the disconnect drive, wherein the disconnect drive can drive the disconnect member to connect to and disconnect from a connection lug of an external hydrogen storage tank; The pipeline lock subassembly includes a lock sub-drive connected to a mounting seat, a lock sub-device connected to an output end of the lock sub-drive, the lock sub-drive can drive the lock sub-device to lock and separate with the pipeline joint of an external hydrogen storage tank, the lock sub-device includes a movable lock nut, the movable lock nut has a connecting hole for the pipeline joint to pass through and can be connected with the pipeline joint, the lock sub-drive can drive the movable lock nut to approach the pipeline joint and lock the pipeline joint, and the lock sub-drive can drive the movable lock nut away from the pipeline joint and separate from the pipeline joint; the pipeline lock subassembly also includes an installation The connecting support, transmission seat, connecting cylinder and valve are installed on the lock drive, and the connecting support, transmission seat, movable lock nut and connecting cylinder are sequentially inserted from the outside to the inside. The end portion of the transmission seat facing the pipe joint protrudes from the connecting support, and a clamping limit structure is formed between the inner wall of one end of the movable lock nut close to the connecting cylinder and the outer wall of one end of the connecting cylinder. The valve is installed at the other end of the connecting cylinder; the lock drive can drive the movable lock nut to rotate circumferentially through the transmission seat, and the movable lock nut can slide back and forth along the axial direction of the connecting cylinder to approach or move away from the pipe joint.

2. The UAV external hydrogen storage tank detachment device according to claim 1 is characterized in that: A first gear ring is arranged on the outer periphery of the transmission seat, and a second gear ring is arranged on the output end of the lock drive, and the first gear ring is meshed with the second gear ring.

3. The UAV external hydrogen storage tank detachment device according to any one of claims 1-2, characterized in that: The mounting seat is provided with at least one connecting seat, wherein the connecting seat has a receiving groove capable of receiving a connecting ear of an external hydrogen storage tank, and a first connecting hole and a second connecting hole respectively penetrating two groove walls of the receiving groove; The disconnecting member includes a rotating rod connected to the output end of the disconnecting drive, at least one connecting rod hinged to the rotating rod, the connecting rod includes a rocker arm hinged to the rotating rod and a connecting arm hinged to the other end of the rocker arm, and the connecting arm can pass through the first connecting hole, the connecting ear and the second connecting hole in sequence to connect to an external hydrogen storage tank.

4. The UAV external hydrogen storage tank detachment device according to claim 3 is characterized in that: The mounting seat is a hollow structure, the connecting seat and the disconnecting assembly are both arranged inside the mounting seat, and a through groove for the connecting ear of the external hydrogen storage tank to pass through is arranged at the bottom of the mounting seat at the position of the connecting seat, and the through groove is connected to the accommodating groove.

5. The UAV external hydrogen storage tank detachment device according to claim 4, characterized in that: The bottom of the mounting seat is also provided with a receiving groove, and the receiving groove is connected with the hollow structure; The external hydrogen storage tank detachment device of the drone also includes a folding mechanism, which includes a folding drive installed in the mounting seat, and the output end of the folding drive is connected to the pipeline lock subassembly. The folding drive can drive the pipeline lock subassembly to enter or protrude from the receiving groove of the mounting seat.

6. The drone external hydrogen tank detachment device according to claim 5, characterized in that: The folding mechanism also includes a lifting and fixing plate installed on the mounting seat, a lifting seat installed on the pipeline lock subassembly, and two scissor-type lifting arms arranged at intervals, one end of the lifting and fixing plate is provided with two parallel and spaced first slide grooves, one end of the lifting seat is provided with two parallel and spaced second slide grooves, one end of the upper part of the two scissor-type lifting arms is slidably connected with the two first slide grooves through a first sliding rod, and the other end is connected to the lifting and fixing plate through a first connecting shaft; one end of the lower part of the two scissor-type lifting arms is slidably connected with the two second slide grooves through a second sliding rod, and the other end is connected to the lifting seat through a second connecting shaft, and the first sliding rod is connected to the output end of the folding drive.

7. A drone, characterized in that: It includes an unmanned aerial vehicle body, an internal hydrogen storage tank arranged inside the unmanned aerial vehicle body, a hydrogen storage tank detachment device installed on the belly of the unmanned aerial vehicle body, and an external hydrogen storage tank connected to the hydrogen storage tank detachment device; the unmanned aerial vehicle body has an airborne delivery controller, and the lock and release device of the unmanned aerial vehicle body or the hydrogen storage tank detachment device is provided with a detection unit capable of detecting the fuel consumption in the external storage tank, and the airborne delivery controller is respectively connected to the detection unit and the disconnection drive and lock and release drive of the hydrogen storage tank detachment device; the hydrogen storage tank detachment device is the unmanned aerial vehicle external hydrogen storage tank detachment device as described in any one of claims 1 to 6.

8. A method of disengagement, characterized in that: The method is applied to the drone described in claim 7, comprising: Fuel consumption detection step: the detection unit obtains fuel consumption information in the external hydrogen storage tank and transmits a signal to the onboard delivery controller when the fuel consumption in the external hydrogen storage tank is completed; Pipeline separation step: the onboard delivery controller sends a pipeline separation movement instruction after determining that the fuel has been consumed, and the lock drive drives the lock to separate the pipeline joint of the external hydrogen storage tank; External hydrogen storage tank separation step: the onboard delivery controller sends a motion instruction for separating the external hydrogen storage tank after determining that the fuel has been consumed, and the disconnection drive drives the disconnection part to separate from the connection ear of the external hydrogen storage tank.

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