CN111891341A - Unmanned aerial vehicle undercarriage and cabin door linkage structure and unmanned aerial vehicle - Google Patents
Unmanned aerial vehicle undercarriage and cabin door linkage structure and unmanned aerial vehicle Download PDFInfo
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- CN111891341A CN111891341A CN202010944751.4A CN202010944751A CN111891341A CN 111891341 A CN111891341 A CN 111891341A CN 202010944751 A CN202010944751 A CN 202010944751A CN 111891341 A CN111891341 A CN 111891341A
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- cabin door
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- cabin
- rotating shaft
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- 238000000034 method Methods 0.000 abstract description 16
- 230000007246 mechanism Effects 0.000 abstract description 12
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- 230000005540 biological transmission Effects 0.000 description 3
- 206010040007 Sense of oppression Diseases 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
- B64C25/18—Operating mechanisms
- B64C25/26—Control or locking systems therefor
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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
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- Aviation & Aerospace Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
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Abstract
The embodiment of the invention discloses an unmanned aerial vehicle undercarriage and cabin door linkage structure and an unmanned aerial vehicle, wherein the linkage structure comprises a cabin door assembly, an undercarriage assembly and a cabin door opening and closing rotating shaft; the door assembly comprises a door plate body and a landing gear door; the cabin door opening and closing rotating shaft is connected to the cabin door plate body, and a plurality of cabin door hinges are sleeved on the cabin door opening and closing rotating shaft and are connected with the cabin door of the undercarriage; the landing gear component is provided with a cabin door driving cam, the cabin door opening and closing rotating shaft is further sleeved with a cabin door driven protruding shaft, when the landing gear component is driven to put down, the cabin door driving cam can be abutted against the cabin door driven protruding shaft and drives the cabin door opening and closing rotating shaft to pivot, and the landing gear cabin door is synchronously opened along with the landing gear component. According to the cabin door driving mechanism, the cabin door driving cam is in linkage fit with the cabin door driven convex shaft, so that the cabin door can be synchronously opened along with the lowering process of the landing gear assembly, a driving mechanism for opening the cabin door is not required to be independently designed, the cabin door structure is simplified, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of design of doors of landing gears of unmanned aerial vehicles, in particular to a landing gear and door linkage structure of an unmanned aerial vehicle and an unmanned aerial vehicle.
Background
At present, (small) unmanned aerial vehicle undercarriage hatch door is opened and undercarriage receive and releases and use two sets of independent structures and servo motor drive unit to realize usually, and it has following shortcoming:
1. the undercarriage folding and unfolding structure and the cabin door structure are not provided with a linkage mechanism, and two sets of driving structures and locking structures are needed, so that the structural weight is increased, and the design requirement of light weight requirement of the small unmanned aerial vehicle is not met;
2. the locking mechanism of the landing gear cannot be linked with the door locking mechanism, and a set of limiting mechanism and locking mechanism is required to be added to the door, so that the design of the door of the landing gear is complicated and the corresponding cost is increased;
3. the retraction mechanism of the undercarriage cannot be linked with the cabin door retraction mechanism, and 2 sets of retraction driving servo motors are required to be arranged for the undercarriage and the cabin door, so that the undercarriage is inconvenient to arrange in a cabin with a narrow space.
The present invention has been made to solve, at least in part, the above-mentioned disadvantages in actual production.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a landing gear and cabin door linkage structure of an unmanned aerial vehicle and the unmanned aerial vehicle.
In order to achieve the above object, the present invention provides an unmanned aerial vehicle undercarriage and cabin door linkage structure, including: the cabin door assembly, the landing gear assembly and the cabin door opening and closing rotating shaft are arranged on the cabin door;
the cabin door assembly comprises a cabin door plate body with an undercarriage retraction through hole and an undercarriage cabin door capable of opening or closing the undercarriage retraction through hole;
wherein the landing gear assembly can be lowered or stored via the landing gear retraction and extension passing space;
the cabin door opening and closing rotating shaft is pivotally connected to the cabin door plate body through a rotating shaft mounting seat, and the plurality of cabin door hinges are sleeved on the cabin door opening and closing rotating shaft and connected with the cabin door of the undercarriage;
the landing gear component is provided with a cabin door driving cam, the cabin door opening and closing rotating shaft is further sleeved with a cabin door driven protruding shaft, when the landing gear component is driven to put down, the cabin door driving cam can be abutted against the cabin door driven protruding shaft and drives the cabin door opening and closing rotating shaft to pivot, and the landing gear cabin door is opened along with the landing gear component synchronously.
Preferably, the landing gear assembly comprises a landing gear main support arm and a landing gear mounting seat for fixing one end of the landing gear main support arm, and the door drive cam is arranged on the landing gear mounting seat.
Preferably, the cabin door driven protruding shaft is provided with a first shaft sleeve sleeved with the cabin door opening and closing rotating shaft and a rocker connected with the first shaft sleeve, and the free end of the rocker is of a spherical structure.
Preferably, the door driving cam comprises a second collar connected to the landing gear mount and a cam connected to the second collar, the cam being in a sector ring shape, when the landing gear assembly is in the stowed state, a free end of the rocker is in contact with a radial side surface of the sector ring facing the outside of the door, and when the landing gear assembly is in the lowered state, the free end of the rocker is in contact with a radial side surface of the sector ring facing one side of the door opening and closing rotation shaft.
Preferably, the door opening and closing rotating shaft is further sleeved with a hinge limiting block for limiting the opening angle of the landing gear door.
Preferably, the hinge limiting block is provided with a limiting bulge, the rotating shaft supporting seat adjacent to the hinge limiting block is provided with a blocking rod, and when the landing gear assembly is put down to reach the preset position, the limiting bulge is in contact with the blocking rod.
Preferably, the cabin door opening and closing rotating shaft is further sleeved with a cabin door closing rocker arm, the cabin door closing rocker arm is provided with a protruding rod, the protruding rod is in the state that the landing gear component is stored, the landing gear component can be in butt connection with one side, facing the inside of the cabin door, of the landing gear main supporting arm, and when the landing gear component is in the down state, the landing gear component is separated from the landing gear main supporting arm.
Preferably, the switching of the landing gear assembly between the stowed and deployed conditions is achieved by any one of a synchronous belt drive, a synchronous chain drive, a multi-link transmission drive.
Preferably, the door panel has a door opening therein.
On the other hand of this application provides an unmanned aerial vehicle, including foretell unmanned aerial vehicle undercarriage and hatch door linkage.
Has the advantages that:
the cabin door can be synchronously opened along with the putting down process of the landing gear assembly through the linkage matching of the cabin door driving cam arranged on the landing gear assembly and the cabin door driven convex shaft arranged on the cabin door, a driving mechanism for opening the cabin door is not required to be independently designed, the cabin door structure is simplified, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a landing gear and door linkage structure of an unmanned aerial vehicle according to an embodiment of the invention.
Figure 2 is a schematic view of the landing gear assembly of figure 1 in a lowered condition.
Figure 3 is a schematic view of the landing gear assembly of figure 1 in a lowered position to a predetermined position (lowered into position).
Fig. 4 is a partial schematic structural view of the hatch driving cam and the hatch driven protruding shaft in fig. 1.
Figure 5 is a schematic view of a portion of the door drive cam and door driven stub shaft of the landing gear door of figure 4 in the process of opening.
Figure 6 is a partial schematic view of the door drive cam and door driven stub shaft of the landing gear door of figure 4 in a fully open condition.
Figure 7 is a schematic view of the interface of the door drive cam with the door follower cam shaft corresponding to the landing gear door opening procedure.
Figure 8 is a schematic view of the interface of the door drive cam with the door follower cam shaft corresponding to the landing gear door fully open.
Figure 9 is a schematic view of the landing gear assembly in the stowed condition.
Fig. 10 is a partial schematic structure corresponding to fig. 9.
Description of reference numerals:
1. a rotating shaft supporting seat; 2. a hinge stopper; 3. a hatch door drive cam; 4. a cabin door driven convex shaft; 5. a landing gear main support arm; 6. a hatch door closing locking rocker arm; 7. a cabin door opening and closing rotating shaft; 8. a landing gear bay door; 9. a hatch door opening; 10. a landing gear assembly; 11. landing gear mount.
Detailed Description
The technical scheme of the invention is described in detail in the following with reference to the accompanying drawings.
According to an aspect of the invention, there is provided an unmanned aerial vehicle undercarriage and cabin door linkage structure, comprising: the cabin door assembly, the landing gear assembly and the cabin door opening and closing rotating shaft are arranged on the cabin door;
the cabin door assembly comprises a cabin door plate body with an undercarriage retraction through hole and an undercarriage cabin door capable of opening or closing the undercarriage retraction through hole;
wherein the landing gear assembly can be lowered or stored via the landing gear retraction and extension passing space;
the cabin door opening and closing rotating shaft is pivotally connected to the cabin door plate body through a rotating shaft mounting seat, and the plurality of cabin door hinges are sleeved on the cabin door opening and closing rotating shaft and connected with the cabin door of the undercarriage;
the landing gear component is provided with a cabin door driving cam, the cabin door opening and closing rotating shaft is further sleeved with a cabin door driven protruding shaft, when the landing gear component is driven to put down, the cabin door driving cam can be abutted against the cabin door driven protruding shaft and drives the cabin door opening and closing rotating shaft to pivot, and the landing gear cabin door is opened along with the landing gear component synchronously.
In the technical scheme, the cabin door can be synchronously opened along with the putting-down process of the landing gear assembly through the linkage matching of the cabin door driving cam arranged on the landing gear assembly and the cabin door driven convex shaft arranged on the cabin door, a driving mechanism for opening the cabin door is not required to be independently designed, the cabin door structure is simplified, and the cost is reduced.
Specifically, the undercarriage assembly includes undercarriage main support arm and is used for fixing the undercarriage mount pad of undercarriage main support arm one end, the hatch door drive cam is located on the undercarriage mount pad.
In this technical scheme, work as the undercarriage subassembly is accomodate or will be driven when putting down and produce the motion, the undercarriage mount pad then drives along with aforementioned motion the hatch door drive cam rotates to the oppression is in the epaxial driven protruding axle that rotates that opens and shuts of hatch door drives the hatch door pivot rotation that opens and shuts, and pivoted hatch door open and shut the pivot and drive rather than fixed connection cabin door hinge as an organic whole and rotate, because the one end of hatch door hinge with undercarriage hatch door fixed connection, consequently finally realize adopting the motion of undercarriage subassembly makes the linkage that the undercarriage hatch door was opened in step need not to corresponding opening device is set up alone in opening of undercarriage hatch door, retrencies structure, reduce cost, is particularly useful for the higher operating mode of space requirement such as unmanned aerial vehicle.
Preferably, the cabin door driven protruding shaft is provided with a first shaft sleeve sleeved with the cabin door opening and closing rotating shaft and a rocker connected with the first shaft sleeve, and the free end of the rocker is of a spherical structure.
In the technical scheme, the free end of the rocker is designed to be of a spherical structure, so that the contact surface of the cabin door driven convex shaft and the cabin door driving cam is small, the contact friction force between the cabin door driven convex shaft and the cabin door driving cam is reduced, and the driving process is smoother.
Further, the door driving cam comprises a second shaft sleeve connected with the landing gear mounting seat and a cam connected with the second shaft sleeve, the cam is in a sector ring shape, when the landing gear assembly is in a storage state, the free end of the rocker is in contact with the radial side face of the sector ring towards the outer side of the door, and when the landing gear assembly is in a laying down state, the free end of the rocker is in contact with the radial side face of one side of the sector ring towards the door opening and closing rotating shaft.
In this technical scheme, two sides of the door drive cam are always in contact with the door driven protruding shaft, and specifically the storage state and the put-down state of the landing gear assembly correspond to different contact surfaces, so that the requirement for the continuous increase of the opening angle of the landing gear door in the putting-down process and the retaining effect on the opening angle of the opened landing gear door after putting down in place are ensured.
Preferably, the door opening and closing rotating shaft is further sleeved with a hinge limiting block for limiting the opening angle of the landing gear door. Specifically, the hinge limiting block is provided with a limiting protrusion, the rotating shaft supporting seat adjacent to the hinge limiting block is provided with a blocking rod, and when the landing gear assembly is put down to reach a preset position, the limiting protrusion is in contact with the blocking rod.
In the technical scheme, the hinge limiting blocks limit the maximum opening angle of the landing gear door, and when the landing gear door is opened at the maximum angle, the maximum opening angle does not interfere with the lowering process of the landing gear assembly.
The cabin door opening and closing rotating shaft is further sleeved with a cabin door closing rocker arm, the cabin door closing rocker arm is provided with a projecting rod, the projecting rod is in a state that the landing gear component is stored, the landing gear component can be in butt connection with one side, facing the inside of the cabin door, of the landing gear main supporting arm, and when the landing gear component is in a down state, the landing gear component is separated from the landing gear main supporting arm.
In this technical scheme, the extension bar of the closed rocking arm of hatch door acts as the locking device that closes of undercarriage hatch door when landing gear subassembly is in the state of accomodating, it is set up in the inboard of undercarriage main tributary support arm to in-process is packed up at the landing gear subassembly, undercarriage main tributary support arm can drive the extension bar and then drive the hatch door pivot rotation that opens and shuts finally drives the undercarriage hatch door is closed and reliably is locked, and the structure is ingenious, novel, and also need not to set up corresponding drive or locking device to the locking of undercarriage hatch door alone, simplifies the structure, reduce cost.
The landing gear assembly is switched between the storage state and the laying down state through any one of synchronous belt driving, synchronous chain driving and multi-connecting-rod transmission structure driving, so that the installation requirements of landing gear cabins of different sizes are met. The cabin door plate body can be provided with a cabin door opening.
On the other hand of this application provides an unmanned aerial vehicle, including foretell unmanned aerial vehicle undercarriage and hatch door linkage.
Example 1
Fig. 1 is a schematic structural diagram of a landing gear and door linkage structure of an unmanned aerial vehicle according to an embodiment of the invention. Figure 2 is a schematic view of the landing gear assembly of figure 1 in a lowered condition. Figure 3 is a schematic view of the landing gear assembly of figure 1 in a lowered position to a predetermined position (lowered into position). Fig. 4 is a partial schematic structural view of the hatch driving cam and the hatch driven protruding shaft in fig. 1. Figure 5 is a schematic view of a portion of the door drive cam and door driven stub shaft of the landing gear door of figure 4 in the process of opening. Figure 6 is a partial schematic view of the door drive cam and door driven stub shaft of the landing gear door of figure 4 in a fully open condition. Figure 7 is a schematic view of the interface of the door drive cam with the door follower cam shaft corresponding to the landing gear door opening procedure. Figure 8 is a schematic view of the interface of the door drive cam with the door follower cam shaft corresponding to the landing gear door fully open. Figure 9 is a schematic view of the landing gear assembly in the stowed condition. Fig. 10 is a partial schematic structure corresponding to fig. 9.
As shown in fig. 1 to 10, there is provided an unmanned aerial vehicle landing gear and door linkage structure, comprising: the cabin door assembly, the landing gear assembly 10 and the cabin door opening and closing rotating shaft 7;
the cabin door assembly comprises a cabin door plate body with an undercarriage retraction through hole and an undercarriage cabin door 8 capable of opening or closing the undercarriage retraction through hole;
wherein the landing gear assembly 10 is capable of being lowered or stowed via the landing gear retraction pass-through space;
the cabin door opening and closing rotating shaft 7 is pivotally connected to the cabin door plate body through a rotating shaft mounting seat, and a plurality of cabin door hinges are sleeved on the cabin door opening and closing rotating shaft 7 and connected with the landing gear cabin door 8;
be equipped with cabin door drive cam 3 on the undercarriage subassembly 10, still the cover is equipped with the driven protruding axle 4 of hatch door on the pivot 7 that opens and shuts of hatch door, work as when the undercarriage subassembly 10 is driven and is put down, hatch door drive cam 3 can with the driven protruding axle 4 of hatch door is contradicted, and drives the pivot of pivot 7 that opens and shuts of hatch door, undercarriage hatch door 8 accompanies the undercarriage subassembly 10 is opened in step.
In the technical scheme, the cabin door can be synchronously opened along with the putting-down process of the landing gear assembly 10 through the linkage matching of the cabin door driving cam 3 arranged on the landing gear assembly 10 and the cabin door driven convex shaft 4 arranged on the cabin door, a driving mechanism for opening the cabin door is not required to be independently designed, the cabin door structure is simplified, and the cost is reduced.
Specifically, the landing gear assembly 10 includes a landing gear main support arm 5 and a landing gear mounting seat 11 for fixing one end of the landing gear main support arm 5, and the door driving cam 3 is provided on the landing gear mounting seat 11.
In this technical scheme, work as when landing gear subassembly 10 is accomodate or will be driven when putting down and produce the motion, undercarriage mount pad 11 then drives along with aforementioned motion hatch door drive cam 3 rotates to the oppression is in driven protruding axle in the hatch door pivot 7 that opens and shuts drives the hatch door pivot 7 that opens and shuts is rotatory, and pivoted hatch door pivot 7 that opens and shuts drives the hatch door hinge as an organic whole rather than fixed connection and rotates, because the one end of hatch door hinge with 8 fixed connection of undercarriage hatch door, consequently finally realize adopting the motion of landing gear subassembly 10 makes the linkage that 8 synchronous openings of undercarriage hatch door need not to be directed against the corresponding opening device is set up alone in opening of undercarriage hatch door 8, retrencies structure, reduce cost, is particularly useful for the higher operating mode of space requirement such as unmanned aerial vehicle.
Preferably, the cabin door driven protruding shaft 4 has a first shaft sleeve sleeved with the cabin door opening and closing rotating shaft 7 and a rocker connected with the first shaft sleeve, and a free end of the rocker is of a spherical structure.
In the technical scheme, the free end of the rocker is designed to be in a spherical structure, so that the contact surface between the cabin door driven convex shaft 4 and the cabin door driving cam 3 is smaller, the contact friction force between the cabin door driven convex shaft and the cabin door driving cam is further reduced, and the driving process is smoother.
Further, the door driving cam 3 includes a second collar connected to the landing gear mount 11 and a cam connected to the second collar, the cam is in a sector ring shape, when the landing gear assembly 10 is in the storage state, a free end of the rocker is in contact with a radial side surface of the sector ring facing the outside of the door, and when the landing gear assembly 10 is in the lowering state, the free end of the rocker is in contact with a radial side surface of the sector ring facing one side of the door opening and closing rotation shaft 7.
In this technical solution, two side faces of the door driving cam 3 are always in contact with the door driven protruding shaft 4, and specifically, the storage state and the lowering state of the landing gear assembly 10 correspond to different contact surfaces, respectively, so as to ensure the continuously increased demand for the opening angle of the landing gear door 8 in the lowering process and the maintenance effect on the opening angle of the opened landing gear door 8 after being lowered to the right position.
Preferably, the door opening and closing rotating shaft 7 is further sleeved with a hinge limiting block 2 for limiting the opening angle of the landing gear door 8. Specifically, hinge stopper 2 is last to have spacing arch, with hinge stopper 2 is close to and has the pole that blocks on the pivot supporting seat 1 that sets up, works as when landing gear subassembly 10 puts down and reaches the preset position, spacing arch with block the pole contact.
In the technical scheme, the hinge limiting block 2 limits the maximum opening angle of the landing gear door 8, and when the landing gear door 8 is opened at the maximum angle, the maximum opening angle should not interfere with the lowering process of the landing gear assembly 10.
The cabin door opening and closing rotating shaft 7 is further sleeved with a cabin door closing rocker arm, the cabin door closing rocker arm is provided with a projecting rod, the projecting rod is in the state that the landing gear assembly 10 is stored, the landing gear assembly 10 can be in butt connection with one side, facing the inside of the cabin door, of the landing gear main supporting arm 5, and when the landing gear assembly 10 is in the state of being put down, the landing gear assembly 10 is separated from the landing gear main supporting arm 5.
In this technical scheme, the extension bar of the closed rocking arm of hatch door acts as the locking device that closes of undercarriage hatch door 8 when landing gear subassembly 10 is in the state of accomodating, it is set up in the inboard of undercarriage main tributary support arm 5 to in-process is packed up at landing gear subassembly 10, undercarriage main tributary support arm 5 can drive the extension bar and then drive the hatch door pivot 7 that opens and shuts is rotatory, finally drives undercarriage hatch door 8 is closed and reliable locking, and the structure is ingenious, novel, and also need not to set up corresponding drive or locking device to the locking of undercarriage hatch door 8 alone, simplifies the structure, reduce cost.
The undercarriage component 10 is switched between the storage state and the laying-down state through any one of synchronous belt driving, synchronous chain driving and multi-connecting-rod transmission structure driving, so that the installation requirements of undercarriage cabins of different sizes are met. The hatch plate body can also be provided with a hatch opening 9.
On the other hand of this application provides an unmanned aerial vehicle, including foretell unmanned aerial vehicle undercarriage and hatch door linkage.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an unmanned aerial vehicle undercarriage and hatch door linkage structure which characterized in that includes: the cabin door assembly, the landing gear assembly and the cabin door opening and closing rotating shaft are arranged on the cabin door;
the cabin door assembly comprises a cabin door plate body with an undercarriage retraction through hole and an undercarriage cabin door capable of opening or closing the undercarriage retraction through hole;
wherein the landing gear assembly can be lowered or stored via the landing gear retraction and extension passing space;
the cabin door opening and closing rotating shaft is pivotally connected to the cabin door plate body through a rotating shaft mounting seat, and the plurality of cabin door hinges are sleeved on the cabin door opening and closing rotating shaft and connected with the cabin door of the undercarriage;
the landing gear component is provided with a cabin door driving cam, the cabin door opening and closing rotating shaft is further sleeved with a cabin door driven protruding shaft, when the landing gear component is driven to put down, the cabin door driving cam can be abutted against the cabin door driven protruding shaft and drives the cabin door opening and closing rotating shaft to pivot, and the landing gear cabin door is opened along with the landing gear component synchronously.
2. A linkage according to claim 1, wherein the landing gear assembly includes a landing gear main support arm and a landing gear mount for securing an end of the landing gear main support arm, the door drive cam being provided on the landing gear mount.
3. The linkage structure according to claim 2, wherein the cabin door driven protruding shaft is provided with a first shaft sleeve sleeved with the cabin door opening and closing rotating shaft and a rocker connected with the first shaft sleeve, and the free end of the rocker is of a spherical structure.
4. A linkage according to claim 3, wherein the door actuation cam comprises a second collar connected to the landing gear mount and a cam connected to the second collar, the cam being in the form of a sector ring, the free end of the rocker being in contact with the radial side of the sector ring facing the outside of the door when the landing gear assembly is in the stowed condition and in contact with the radial side of the sector ring facing the side of the door opening and closing pivot when the landing gear assembly is in the lowered condition.
5. The linkage structure according to claim 2, wherein the door opening and closing rotating shaft is further sleeved with a hinge limiting block for limiting the opening angle of the landing gear door.
6. The linkage structure according to claim 5, wherein the hinge stopper has a stopper protrusion thereon, and the shaft support seat disposed adjacent to the hinge stopper has a stopper rod thereon, and the stopper protrusion contacts the stopper rod when the landing gear assembly is lowered to a predetermined position.
7. The linkage structure according to claim 2, wherein a door closing rocker is further sleeved on the door opening and closing rotating shaft, the door closing rocker is provided with a protruding rod, the protruding rod can be in interference connection with one side of the landing gear main supporting arm facing the inside of the door when the landing gear assembly is in the storage state, and the protruding rod is separated from the contact with the landing gear main supporting arm when the landing gear assembly is in the down state.
8. A linkage according to claim 7, wherein the landing gear assembly is switched between the stowed and the lowered conditions by any one of a synchronous belt drive, a synchronous chain drive, a multi-link drive arrangement drive.
9. The linkage structure according to claim 1, wherein the door panel has a door opening therein.
10. An unmanned aerial vehicle comprising an unmanned aerial vehicle landing gear and door linkage according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944751.4A CN111891341B (en) | 2020-09-10 | 2020-09-10 | Unmanned aerial vehicle undercarriage and cabin door linkage structure and unmanned aerial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944751.4A CN111891341B (en) | 2020-09-10 | 2020-09-10 | Unmanned aerial vehicle undercarriage and cabin door linkage structure and unmanned aerial vehicle |
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| Publication Number | Publication Date |
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| CN111891341A true CN111891341A (en) | 2020-11-06 |
| CN111891341B CN111891341B (en) | 2024-06-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415426A (en) * | 2021-07-30 | 2021-09-21 | 中国人民解放军总医院第二医学中心 | Overhead wounded person transports nacelle |
| CN113602484A (en) * | 2021-08-26 | 2021-11-05 | 中国商用飞机有限责任公司 | Undercarriage retraction system and aircraft comprising same |
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| CN102232038A (en) * | 2008-12-05 | 2011-11-02 | 梅西埃-道蒂公司 | Landing gear bay door with roller slot mechanism |
| CN102431644A (en) * | 2011-11-22 | 2012-05-02 | 中航飞机起落架有限责任公司 | Plane main undercarriage space retraction/extension mechanism and retraction/extension method |
| CN204078066U (en) * | 2014-09-17 | 2015-01-07 | 江西洪都航空工业集团有限责任公司 | A kind of landing gear compartment door linkage draw off gear |
| CN208630836U (en) * | 2018-07-23 | 2019-03-22 | 四川垚磊科技有限公司 | A kind of small drone MLG Door mechanism |
| CN212448054U (en) * | 2020-09-10 | 2021-02-02 | 四川跃纳科技有限公司 | Unmanned aerial vehicle undercarriage and cabin door linkage structure and unmanned aerial vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415426A (en) * | 2021-07-30 | 2021-09-21 | 中国人民解放军总医院第二医学中心 | Overhead wounded person transports nacelle |
| CN113602484A (en) * | 2021-08-26 | 2021-11-05 | 中国商用飞机有限责任公司 | Undercarriage retraction system and aircraft comprising same |
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| Publication number | Publication date |
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| CN111891341B (en) | 2024-06-18 |
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