CN116080888A - Freight unmanned aerial vehicle and cargo compartment door device - Google Patents
Freight unmanned aerial vehicle and cargo compartment door device Download PDFInfo
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- CN116080888A CN116080888A CN202211633883.0A CN202211633883A CN116080888A CN 116080888 A CN116080888 A CN 116080888A CN 202211633883 A CN202211633883 A CN 202211633883A CN 116080888 A CN116080888 A CN 116080888A
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- support
- rod
- cargo
- door
- locking device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
- B64C1/1407—Doors; surrounding frames
- B64C1/1415—Cargo doors, e.g. incorporating ramps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention discloses a freight unmanned aerial vehicle and a cargo compartment door device, which belong to the field of cargo unmanned aerial vehicle compartment door design, wherein a compartment door locking device and a gust locking device are arranged on a cargo compartment door, the compartment door locking device is realized by arranging a handle, a driving rod, a driven rod and other structures on the compartment door, the gust locking device is realized by arranging a supporting rod support, a supporting rod component, a limiting hole and other structures on the compartment door, the compartment door locking device and the gust locking device have the characteristics of simple structure and high locking reliability, the compartment door locking device is arranged to enable the compartment door locking and opening process to be simpler and more convenient and labor-saving, and the compartment door can be rapidly positioned at different opening angles by arranging the gust locking device, so that different loading and unloading demands can be met, and the cargo compartment door locking device has important practical application significance.
Description
Technical Field
The invention belongs to the field of design of freight unmanned aerial vehicles, and particularly relates to a freight unmanned aerial vehicle and a cargo compartment door device.
Background
At present, a large-sized freight unmanned aerial vehicle is in a research and development trial-manufacturing stage in China, but is in a great hot direction in the civil field of unmanned aerial vehicles, from a small multi-axis unmanned aerial vehicle to a point-to-point fixed wing unmanned aerial vehicle, and then to the large-sized freight unmanned aerial vehicle, the unmanned aerial vehicle design technology is mature.
With the enlargement of cargo unmanned aerial vehicles, the cargo capacity of the cargo unmanned aerial vehicle is improved, a more perfect cargo loading and unloading system is adopted, and with the increase of the sizes of the cargo loading and unloading system, cargo containers and cargo loads, higher requirements are also put on the opening and locking structure of cargo doors.
In application scenarios such as logistics, the cabin of an aircraft such as an unmanned aerial vehicle is typically provided with an opening. The opening is used for detecting the internal equipment or loading and unloading goods. At present, a cabin door locking device and a gust locking device arranged at an opening of a large-sized aircraft are generally complex in design structure, troublesome to operate and low in automation degree. Therefore, the cargo door device of the cargo unmanned aerial vehicle, which is simpler and more reliable in structure and more convenient to operate, is designed particularly for a large cargo unmanned aerial vehicle, can be opened and locked by a single person quickly, and meanwhile has the advantages of easy opening angle adjustment, simple and reliable structure, and has important practical significance.
Disclosure of Invention
The invention discloses a freight unmanned aerial vehicle and a cargo compartment door device aiming at the problems, and adopts the following technical scheme:
a cargo hold door assembly for a cargo unmanned aerial vehicle, the cargo hold door assembly comprising a main cargo hold door, a door frame and a door hinge, the main cargo hold door being connected to an upper rim of the door frame by the door hinge, the cargo hold door assembly being characterized in that: the cargo compartment door device is also provided with a compartment door locking device and a gust locking device;
the hatch locking device comprises: the device comprises a handle, a driving rod, a driven rod and a side longitudinal framework of a cabin door reinforced enclosing frame, wherein the handle is connected with the driving rod, rocker arms are arranged at the vertical cross connection parts of the driving rod and the driven rod, the tail ends of driven rod connecting rods at two sides of the driven rod penetrate through limiting holes in the side longitudinal framework to be positioned, and the tail ends of the driven rod connecting rods can stretch out and draw back in the limiting holes through the driving rod when the handle is rotated;
the main part symmetry of gust locking device is located on the longitudinal skeleton of side of main part cargo compartment door both sides, gust locking device includes: the support rod support is connected with the side longitudinal framework, the support rod assembly is connected with the support rod support, and the support rod after connection can transversely and longitudinally swing relative to the side longitudinal framework by taking the support rod support as an origin; the support rod head can be clamped with the support hole to realize support.
Further, the driving rod comprises a handle shaft, a connecting piece and a driving rod connecting rod; the follower lever includes: the device comprises a single-lug connector, a double-lug connector, a driven rod connecting rod and a bolt; the cabin door reinforcing surrounding frame is of a frame structure surrounding the periphery of the cabin door, and the side longitudinal frameworks are provided with limiting holes; the connecting piece is composed of a cross joint with universal joints connected at two ends; the handle is connected with the handle shaft through the bolt, the handle shaft with the driving lever connecting rod passes through the connecting piece is connected, driving lever and driven lever junction are equipped with the rocking arm, the rocking arm passes through the connecting piece with the driving lever connecting rod is connected, the rocking arm passes through the monaural joint with the driven lever connecting rod is connected, the driven lever connecting rod with the bolt passes through the binaural joint is connected, the bolt passes spacing hole location.
Further, the stay bar support is connected to the side longitudinal frames of the frame of the cargo door of the main body, the stay bar assembly comprises stay bar joints, stay bars and stay bar heads, the stay bar joints and the stay bar heads are respectively positioned at two ends of the stay bars, and the support holes are arranged on the frames at two sides of the frame of the cargo door at intervals; the brace rod connector is movably connected with the brace rod support, and the connected brace rod can transversely and longitudinally swing relative to the longitudinal skeleton direction of the side edge by taking the brace rod support as an origin; the support rod head can be clamped with the support hole to realize support.
Further, a pressure spring structure is arranged at the position of the handle, the pressure spring structure comprises a spring and fixing brackets, the two fixing brackets are respectively connected and fixed with driven rod connecting rods at two sides of the rocker arm, the spring is connected between the two fixing brackets, the handle is rotated, when the cabin door is opened, along with the shrinkage of the driven rod connecting rods, the spring is in a compressed state, when the cabin door is closed by reversely rotating the handle, along with the extension of the driven rod connecting rods, the spring is still in a compressed state, and the elasticity of the spring can assist the locking of the cabin door.
Further, the supporting holes are bolt holes used for closing the cargo door of the main body at the edge positions of two sides of the outer frame of the cabin door.
Further, a clamping hook is arranged at the position of the supporting rod head, and when the cabin door is opened, the supporting rod head can be clamped in the supporting hole through the clamping hook to realize supporting.
Further, a spring clip is provided on the main cargo door in a position corresponding to the spreader support, the spring clip being adapted to secure the spreader assembly to the inside of the main cargo door when the main cargo door is closed.
Further, the support rod support seat is sleeved in a groove on the side longitudinal framework, the support rod support seat can rotate around the side longitudinal framework in the groove, and the support rod connector is movably connected with the support rod support seat through a pin shaft.
Further, the stay bar connector and the stay bar are assembled together in an interference fit mode, and the stay bar connector is clamped into the support hole through rotation to achieve support.
A cargo drone comprising the cargo door arrangement of a cargo drone described above.
The invention has the following beneficial effects:
the cargo compartment door of the freight unmanned plane is provided with the compartment door locking device and the gust locking device, and the compartment door locking device changes the rotary motion of the compartment door handle into the linear motion of a plurality of bolts, so that the locking state of the compartment door is ensured; the cabin door reinforcing surrounding frame is designed at the periphery of the cabin door, and the cabin door integrally maintains the aerodynamic shape of the flying platform and does not participate in the overall force transmission; the gust lock arranged on the cabin door is simple and reliable in structure, the spring clamp structure is arranged, the cabin door stay bar can be fast fixed at a required position when the aircraft platform flies, the flight safety of the platform cannot be influenced, the cabin door can be rapidly positioned at different opening angles through the stay bar supporting at different limiting holes, so that different loading and unloading demands are met, the loading efficiency is improved, and the device has important practical application significance. The cabin door locking device and the air lock device have the characteristics of simple structure and high reliability, are simple and labor-saving in locking and unlocking operation, and have good application prospects.
Description of the drawings:
FIG. 1 is a schematic view of a cargo door locking device of a cargo aircraft and cargo door assembly of the present invention;
FIG. 2 is a schematic view of a cargo door locking device second of the cargo unmanned aerial vehicle and cargo door device of the present invention;
FIG. 3 is a schematic view of a gust lock device of a cargo UAV and cargo door assembly according to the present invention;
FIG. 4 is a schematic view of a gust lock mechanism of a cargo UAV and cargo door assembly according to the present invention;
fig. 5 is an overall schematic view of a cargo door arrangement of a cargo unmanned aerial vehicle and cargo door arrangement according to the invention.
The reference numerals in the figures are: the novel door comprises a handle-1, a driving rod connecting rod-2, a driven rod connecting rod-3, a bolt-4, a limiting hole-5, a side longitudinal framework-6, a bolt-7, a handle shaft-8, a cross joint-9, a universal joint-10, a rocker arm-11, a single-lug joint-12, a double-lug joint-13, a driving rod-14, a driven rod-15, a spring-16, a fixed bracket-17, a cabin door hinge-18, a main cargo door-19, a stay bar assembly-20, a cabin door frame-21, a supporting hole-22, a stay bar support-23, a stay bar joint-24, a stay bar-25, a stay bar head-26, a pin roll-27 and a spring clip-28.
The specific embodiment is as follows:
for a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.
As shown in the drawings, fig. 1 is a schematic view of a cargo door locking device of a cargo unmanned aerial vehicle and a cargo door device of the present invention; FIG. 2 is a schematic view of a cargo door locking device second of the cargo unmanned aerial vehicle and cargo door device of the present invention; FIG. 3 is a schematic view of a gust lock device of a cargo UAV and cargo door assembly according to the present invention; FIG. 4 is a schematic view of a gust lock mechanism of a cargo UAV and cargo door assembly according to the present invention; fig. 5 is an overall schematic view of a cargo door arrangement of a cargo unmanned aerial vehicle and cargo door arrangement according to the invention.
As shown in the figures, the cargo door arrangement comprises a main cargo door 19, a door frame 21 and a door hinge 18, wherein the main cargo door 19 is connected to the upper rim of the door frame 21 by the door hinge 18, characterized in that: the cargo compartment door device is also provided with a compartment door locking device and a gust locking device; the hatch locking device comprises: the handle 1 is connected with the driving rod 14, rocker arms 11 are arranged at the vertical cross connection parts of the driving rod 14 and the driven rod 15, the tail ends of driven rod connecting rods 3 on two sides of the driven rod 15 penetrate through limiting holes in the side longitudinal frame 6 to be positioned, and the tail ends of the driven rod connecting rods 3 can stretch out and draw back in the limiting holes through the driving rod when the handle is rotated; the main body part of the gust locking device is symmetrically arranged on the side longitudinal skeletons 6 at two sides of the main body cargo door 19, and the gust locking device comprises: the support rod support 23, the support rod assembly 20 and the support hole 22, wherein the support rod support 23 is connected with the side longitudinal skeleton 6, the support rod assembly 20 is connected with the support rod support 23, and the support rod 25 after connection can transversely and longitudinally swing relative to the direction of the side longitudinal skeleton 6 by taking the support rod support 23 as an origin; the stay bar head 26 can be clamped in the support hole 22 to realize support.
The driving rod 14 comprises a handle shaft 8, a connecting piece and a driving rod connecting rod 2; the driven lever 15 includes: the single-lug connector 12, the double-lug connector 13, the driven rod connecting rod 3 and the bolt 4; the cabin door reinforcing surrounding frame is of a frame structure surrounding the periphery of the cabin door, and the side longitudinal frameworks 6 are provided with limiting holes 5; the connecting piece is composed of a cross joint 9 with universal joints 10 connected at two ends; the handle 1 is connected with the handle shaft 8 through the bolt 7, the handle shaft 8 with the driving lever connecting rod 2 passes through the connecting piece is connected, driving lever 14 and driven lever 15 junction is equipped with rocking arm 11, rocking arm 11 passes through the connecting piece with the driving lever connecting rod 2 is connected, rocking arm 11 passes through the monaural joint 12 with the driven lever connecting rod 3 is connected, the driven lever connecting rod 3 with the bolt 4 passes through the binaural joint 13 is connected, the bolt 4 passes spacing hole 5 location.
The strut support 23 is connected to the side longitudinal frame 6 of the main cargo door frame, the strut assembly 20 includes strut connectors 24, struts 25 and strut heads 26, the strut connectors 24 and strut heads 26 are respectively located at two ends of the struts 25, and the support holes 22 are arranged at intervals on two side frames of the door frame 21; the stay bar connector 24 is movably connected with the stay bar support 23, and the connected stay bar 25 can transversely and longitudinally swing relative to the direction of the side longitudinal framework 6 by taking the stay bar support 23 as an origin; the stay bar head 26 can be clamped in the support hole 22 to realize support.
The position of the handle is provided with a pressure spring structure, the pressure spring structure comprises a spring 16 and a fixed support 17, the two fixed supports 17 are respectively connected and fixed with the driven rod connecting rods 3 on two sides of the rocker arm, the spring 16 is connected between the two fixed supports 17, the handle 1 is rotated, when the cabin door is opened, the spring 16 is in a compressed state along with the shrinkage of the driven rod connecting rods 3, when the handle 1 is reversely rotated to close the cabin door, the spring 16 is still in a compressed state along with the extension of the driven rod connecting rods 3, and the elasticity of the spring 16 can assist in locking the cabin door.
The supporting holes 22 are bolt holes at the edges of the two sides of the outer frame 21 for closing the cargo hold of the main body. The strut head 26 is provided with a hook, and when the cabin door is opened, the strut head 26 can be clamped in the supporting hole 22 through the hook to realize supporting. A spring clip 28 is provided on the main cargo door 19 in a position corresponding to the stay bracket 23, which spring clip 28 can secure the stay assembly 20 inside the main cargo door 2 when the main cargo door is closed. The support rod support 23 is sleeved in a groove on the side longitudinal skeleton 6, the support rod support 23 can rotate around the side longitudinal skeleton in the groove, and the support rod connector 24 is movably connected with the support rod support 23 through a pin shaft 27. The stay bar joint 24 and the stay bar 25 are assembled together by interference fit, and the stay bar head 26 is clamped into the support hole 22 by rotation, so that support is realized.
The cargo door device of the freight unmanned aerial vehicle comprises a main cargo door 19, a door frame 21 and a door hinge 18, wherein the main cargo door 19 is connected with the upper frame of the door frame 21 through the door hinge 18, and the cargo door device is also provided with a door locking device and a gust locking device; the hatch locking device comprises: the handle 1, the driving rod 14, the driven rod 15 and the side longitudinal framework 6 of the cabin door reinforcing surrounding frame; the driving rod 14 comprises a handle shaft 8, a connecting piece and a driving rod connecting rod 2; the driven lever 15 includes: the single-lug connector 12, the double-lug connector 13, the driven rod connecting rod 3 and the bolt 4; the number of the driven rods 15 is more than two. The cabin door reinforcing surrounding frame is of a frame structure surrounding the periphery of the cabin door and is made of light hard materials, and the light hard materials are alloy materials or high-strength fiber and resin composite materials. The side longitudinal frameworks 6 are provided with limiting holes 5; the connecting piece is composed of a cross joint 9 with universal joints 10 connected at two ends; the handle 1 is connected with the handle shaft 8 through a bolt 7, the handle shaft 8 is connected with the driving rod connecting rod 2 through a connecting piece, a rocker arm 11 is arranged at the joint of the driving rod 14 and the driven rod 15, the rocker arm 11 is connected with the driving rod connecting rod 2 through the connecting piece, the rocker arm 11 is connected with the driven rod connecting rod 3 through the single-lug connector 12, the driven rod connecting rod 3 is connected with the plug pin 4 through the double-lug connector 13, and the plug pin 4 is positioned through the limiting hole 5; the main body part of the gust locking device is symmetrically arranged on the side longitudinal skeletons 6 at two sides of the main body cargo door 19, and the gust locking device comprises: a stay support 23, a stay assembly 20, and a support hole 22; the strut support 23 is connected to the side longitudinal frame 6 of the main cargo door frame, the strut assembly 20 includes strut connectors 24, struts 25 and strut heads 26, the strut connectors 24 and strut heads 26 are respectively located at two ends of the struts 25, and the support holes 22 are arranged at intervals on two side frames of the door frame 21; the stay bar connector 24 is movably connected with the stay bar support 23, and the connected stay bar 25 can transversely and longitudinally swing relative to the direction of the side longitudinal framework 6 by taking the stay bar support 23 as an origin; the supporting rod support 23 can be sleeved in a groove on the side longitudinal skeleton 6, the supporting rod support 23 can rotate around the side longitudinal skeleton in the groove, the supporting rod connector 24 is movably connected with the supporting rod support 23 through a pin shaft 27, and the connected supporting rod 25 can transversely and longitudinally swing relative to the direction of the side longitudinal skeleton 6 by taking the supporting rod support 23 as an origin. The stay bar head 26 can be clamped in the support hole 22 to realize support. The support holes 22 may be bolt holes formed at both side edges of the door frame 21 for closing the cargo door of the main body.
The position of the handle is provided with a pressure spring structure, the pressure spring structure comprises a spring 16 and a fixed support 17, the two fixed supports 17 are respectively connected and fixed with the driven rod connecting rods 3 on two sides of the rocker arm, the spring 16 is connected between the two fixed supports 17, the handle 1 is rotated, when the cabin door is opened, the spring 16 is in a compressed state along with the shrinkage of the driven rod connecting rods 3, when the handle 1 is reversely rotated to close the cabin door, the spring 16 is still in a compressed state along with the extension of the driven rod connecting rods 3, and the elasticity of the spring 16 can assist in locking the cabin door.
And a clamping hook is arranged at the position of the stay bar head 26, and when the cabin door is opened, the stay bar head 26 can be clamped in the supporting hole 22 through the clamping hook to realize supporting. The stay bar joint 24 and the stay bar 25 can also be assembled together by adopting interference fit, and the stay bar head 26 assembled in a matched manner is clamped into the support hole 22 by rotation, so that support is realized.
A spring clip 28 is provided on the main cargo door 19 in a position corresponding to the stay bracket 23, which spring clip 28 can secure the stay assembly 20 inside the main cargo door 2 when the main cargo door is closed.
A cargo unmanned aerial vehicle provided with the cargo door device of the cargo unmanned aerial vehicle.
Embodiments of the present invention are further described above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.
Claims (10)
1. A cargo hold door assembly for a cargo unmanned aerial vehicle, the cargo hold door assembly comprising a main cargo hold door, a door frame and a door hinge, the main cargo hold door being connected to an upper rim of the door frame by the door hinge, the cargo hold door assembly being characterized in that: the cargo compartment door device is also provided with a compartment door locking device and a gust locking device;
the hatch locking device comprises: the device comprises a handle, a driving rod, a driven rod and a side longitudinal framework of a cabin door reinforced enclosing frame, wherein the handle is connected with the driving rod, rocker arms are arranged at the vertical cross connection parts of the driving rod and the driven rod, the tail ends of driven rod connecting rods at two sides of the driven rod penetrate through limiting holes in the side longitudinal framework to be positioned, and the tail ends of the driven rod connecting rods can stretch out and draw back in the limiting holes through the driving rod when the handle is rotated;
the main part symmetry of gust locking device is located on the longitudinal skeleton of side of main part cargo compartment door both sides, gust locking device includes: the support rod support is connected with the side longitudinal framework, the support rod assembly is connected with the support rod support, and the support rod after connection can transversely and longitudinally swing relative to the side longitudinal framework by taking the support rod support as an origin; the support rod head can be clamped with the support hole to realize support.
2. A cargo aircraft cargo door assembly according to claim 1, wherein: the driving rod comprises a handle shaft, a connecting piece and a driving rod connecting rod; the follower lever includes: the device comprises a single-lug connector, a double-lug connector, a driven rod connecting rod and a bolt; the cabin door reinforcing surrounding frame is of a frame structure surrounding the periphery of the cabin door, and the side longitudinal frameworks are provided with limiting holes; the connecting piece is composed of a cross joint with universal joints connected at two ends; the handle is connected with the handle shaft through the bolt, the handle shaft with the driving lever connecting rod passes through the connecting piece is connected, driving lever and driven lever junction are equipped with the rocking arm, the rocking arm passes through the connecting piece with the driving lever connecting rod is connected, the rocking arm passes through the monaural joint with the driven lever connecting rod is connected, the driven lever connecting rod with the bolt passes through the binaural joint is connected, the bolt passes spacing hole location.
3. A cargo aircraft cargo door assembly according to claim 1, wherein: the support rod support is connected to the side longitudinal framework of the main cargo door frame, the support rod assembly comprises support rod joints, support rods and support rod heads, the support rod joints and the support rod heads are respectively positioned at two ends of the support rods, and the support holes are formed in the side frames of the door frame at intervals; the brace rod connector is movably connected with the brace rod support, and the connected brace rod can transversely and longitudinally swing relative to the longitudinal skeleton direction of the side edge by taking the brace rod support as an origin; the support rod head can be clamped with the support hole to realize support.
4. A cargo aircraft cargo door assembly according to claim 1, wherein: the position of the handle is provided with a pressure spring structure, the pressure spring structure comprises a spring and a fixed support, the two fixed supports are respectively connected and fixed with driven rod connecting rods on two sides of the rocker arm, the spring is connected between the two fixed supports, the handle is rotated, when the cabin door is opened, along with the shrinkage of the driven rod connecting rods, the spring is in a compressed state, when the cabin door is closed by reversely rotating the handle, along with the extension of the driven rod connecting rods, the spring is still in a compressed state, and the elastic force of the spring can assist the locking of the cabin door.
5. A cargo aircraft cargo door assembly according to claim 1, wherein: the supporting holes are bolt holes which are arranged at the edges of two sides of the outer frame of the cabin door and used for closing the cabin door of the main cargo cabin.
6. A cargo aircraft cargo door assembly according to claim 1, wherein: the position of the supporting rod head is provided with a clamping hook, and when the cabin door is opened, the supporting rod head can be clamped in the supporting hole through the clamping hook to realize supporting.
7. A cargo aircraft cargo door assembly according to claim 1, wherein: and a spring clip is arranged on the main cargo door at a position corresponding to the stay bar support, and can fix the stay bar assembly on the inner side of the main cargo door when the main cargo door is closed.
8. A cargo UAV cargo door arrangement according to claim 3, wherein: the support rod support is sleeved in the groove on the side longitudinal framework, the support rod support can rotate around the side longitudinal framework in the groove, and the support rod connector is movably connected with the support rod support through a pin shaft.
9. A cargo UAV cargo door arrangement according to claim 3, wherein: the stay bar connector is assembled with the stay bar in an interference fit mode, and the stay bar connector is clamped into the support hole through rotation to achieve support.
10. A freight unmanned aerial vehicle, characterized in that: the unmanned aerial vehicle comprising a cargo hold door arrangement of a cargo unmanned aerial vehicle according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211633883.0A CN116080888A (en) | 2022-12-19 | 2022-12-19 | Freight unmanned aerial vehicle and cargo compartment door device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211633883.0A CN116080888A (en) | 2022-12-19 | 2022-12-19 | Freight unmanned aerial vehicle and cargo compartment door device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116080888A true CN116080888A (en) | 2023-05-09 |
Family
ID=86203577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211633883.0A Pending CN116080888A (en) | 2022-12-19 | 2022-12-19 | Freight unmanned aerial vehicle and cargo compartment door device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116080888A (en) |
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2022
- 2022-12-19 CN CN202211633883.0A patent/CN116080888A/en active Pending
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