CN105667757B - A kind of blocking type cargo door of civil aircraft hyperbolic section half - Google Patents
A kind of blocking type cargo door of civil aircraft hyperbolic section half Download PDFInfo
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- CN105667757B CN105667757B CN201610199858.4A CN201610199858A CN105667757B CN 105667757 B CN105667757 B CN 105667757B CN 201610199858 A CN201610199858 A CN 201610199858A CN 105667757 B CN105667757 B CN 105667757B
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- door
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- axle
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Classifications
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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
Abstract
A kind of blocking type cargo door of civil aircraft hyperbolic section half, is consisted of：Right-hand side handle mechanism is connected with the Handle axis inside hatch door, ventilation mouth mechanism links with Handle axis, Handle axis left and right ends are provided with latch mechanism, the visual detection mechanism that can verify that Handle axis rotation position is provided with latch mechanism；Handle axis and door bolt axle linkage, bolt mechanism is provided at both ends with door bolt axle；Also linkage has opening mechanism in Handle axis, and the crank II being hinged with hatch door and the opening mechanism connecting rod being connected with suspension arm are included in opening mechanism, and linkage hatch door moves up and down with respect to airframe structure.The hatch door is in fuselage converging portion, is hyperbolic section hatch door, has the advantages of safe, navigability is strong, and versatility is high.
Description
Technical field
The present invention relates to a kind of civil aircraft cargo door, is specifically applied to for one kind on civil aircraft, in machine
The blocking type harm type cargo door of big opening half of body hyperbolic section.
Background technology
Civil aircraft hatch door can be divided into blocking type hatch door and non-blocking type hatch door two types by blocking form.It is wherein stifled
Plug hatch door is divided into full blocking type and half blocking type hatch door again.
Full blocking type cargo door initial motion direction is inside relative to draw pres planes, opens rear deck door and is in machine
Inside body, space in cabin is taken after opening completely and clear opening is had a great influence, in the design of current civil aircraft cargo door
Through seldom using.Non- blocking type hatch door initial motion direction is outside relative to average pressure plane, and reliability and security is not high,
If other hatch door is in fuselage hyperbolic fragment position, the convergence of cabin door structure bottom is serious, the arrangement of mechanism of non-blocking type scheme
It can not realize.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of blocking type cargo hold of civil aircraft hyperbolic section half
Door, the hatch door are in fuselage hyperbolic section, and right-hand side handle mechanism is connected with the Handle axis inside hatch door, divulge information mouth mechanism and handle
Axle is linked, and latch mechanism is provided with Handle axis, the visual inspection that can verify that Handle axis rotation position is provided with latch mechanism
Survey mechanism；Handle axis and door bolt axle linkage, bolt mechanism is provided at both ends with door bolt axle；Also linkage has opening mechanism in Handle axis.Solution
Determine present in prior art the technical problem that hatch door utility model is low, security performance is low.
To achieve these goals, the technical solution adopted by the present invention is：A kind of blocking type goods of civil aircraft hyperbolic section half
Hatch door, it is characterised in that：Right-hand side handle mechanism is connected with the Handle axis inside hatch door, ventilation mouth mechanism links with Handle axis,
Handle axis left and right ends are provided with latch mechanism, the visual detection that can verify that Handle axis rotation position is provided with latch mechanism
Mechanism；Handle axis and door bolt axle linkage, bolt mechanism is provided at both ends with door bolt axle；Also linkage has opening mechanism in Handle axis, opens
Include the crank II being hinged with hatch door and the opening mechanism connecting rod being connected with suspension arm in mechanism, linkage hatch door is with respect to fuselage knot
Structure moves up and down；
Handle axis and ventilation mouth mechanism, Handle axis and door bolt axle, between Handle axis and opening mechanism by cam link and
Four-bar mechanism is linked, so as to realize the transmission of rotational motion.
Described latch mechanism includes being enclosed on the lock shaft lock in Handle axis, and door bolt axle lock is fixed with door bolt axle.
Include spring in described visual detection mechanism, one end of spring is connected to lock shaft and locked, and the other end is connected to
On indication panel, the upper end of indication panel by roller compression in the roller groove that door bolt axle is locked, the position of indication panel and setting
The position of observation window in cabin door structure is corresponding.
Described bolt mechanism includes door bolt rocking arm and door bolt groove, wherein door bolt rocking arm is connected on door bolt axle, door bolt groove is arranged on both sides
Hatch door on, by fasten with a bolt or latch axle drive door bolt rocking arm away from or into door bolt groove, realize solution door bolt or lock bolt.
Crank II in described opening mechanism is connected on the four-bar mechanism driven by Handle axis, the other end and hatch door knot
Structure is hinged, and crank II middle part and opening mechanism connecting rod are hinged, and connecting rod is connected with the suspension arm of both sides, suspension arm while and fuselage
Structure is hinged.
It is also associated with internal latch mechanism in described Handle axis, the lock shaft block in internal latch mechanism is connected with Handle axis,
Inner lock shaft is connected with hatch door, and roller rock arm is connected with inner lock shaft, and roller rock arm is arranged on the interior of stopper slot, internally locked
Internal lock block is additionally provided with axle, after hatch door pull-up departs from mouth frame, roller rock arm departs from stopper slot, and inner lock shaft drives internal
Stopper block coordinates with lock shaft stop location, the rotation position of lock handle axle.
The beneficial effect of the invention is：
1st, it is safe.What the present invention selected is the form of half blocking type hatch door, the initial motion direction phase of opened door
It is inwardly upward for average pressure plane.Load and hatch door weight itself are pressurized all without the trend for making hatch door have opening, this
The security of hatch door is greatly ensured.The other present invention have selected the design for endangering door, provided with supercharging disease-prevention institutions etc.
Release mechanism, it is possible to prevente effectively from hatch door is opened in the air.
2nd, it is not take up space in cabin.The half blocking type scheme selected compared to blocking type hatch door, the present invention, hatch door are complete
External fuselage is in during opening, this is effectively saved engine room inside space, and this point is even more important for cargo door.
3rd, versatility is high.Present invention can apply to fuselage hyperbolic section, the particularly more serious region of convergence ratio, compared to non-
Blocking type hatch door, there is the wider scope of application.
Brief description of the drawings
Fig. 1：For hatch door front view of the present invention.
Fig. 2：For structural scheme of mechanism of the present invention.
Fig. 3：For outdoor handle structural scheme of mechanism of the present invention.
Fig. 4：For ventilating opening structural scheme of mechanism of the present invention.
Fig. 5：For latch mechanism schematic diagram of the present invention.
Fig. 6：For visual detection structural scheme of mechanism of the present invention.
Fig. 7：For bolt mechanism schematic diagram of the present invention.
Fig. 8：For Handle axis of the present invention and door bolt axis connection view.
Fig. 9：For opening mechanism schematic diagram of the present invention.
Figure 10：For guiding mechanism schematic diagram of the present invention.
Figure 11：For opening mechanism power-assisted partial schematic diagram of the present invention.
Figure 12：For internal lock structural scheme of mechanism of the present invention.
Figure 13：For full open position schematic diagram of the present invention.
Figure 14：Schematic diagram is locked for fitful wind of the present invention.
1st, block；2nd, sealing strip；3rd, frame is indulged；4th, auxiliary beam；5th, crossbeam；6th, pneumatic seal；7th, exterior skin；8th, cornual plate；9、
Outdoor handle box；10th, fitful wind is locked；11st, drive mechanism；12nd, opening mechanism；13rd, hoisting mechanism；14th, latch mechanism；15th, visual detection
Mechanism；16th, bolt mechanism；17th, right-hand side handle mechanism；18th, ventilation mouth mechanism；19th, internal latch mechanism；20th, Handle axis；21st, axle is fastened with a bolt or latch；
22nd, safety spring；23rd, power assistant spring is lifted；24th, handle cover plate；25th, outdoor handle；26th, ventilating opening cover plate；27th, lock shaft is locked；28、
Fasten axle lock with a bolt or latch；33rd, observation window；29th, roller is driven；30th, indication panel；31st, spring；32nd, crank I；34th, rocking arm is fastened with a bolt or latch；35th, groove is fastened with a bolt or latch；
36th, crank II；37th, guiding mechanism；38th, guide wheel；39th, guide groove；40th, opening mechanism connecting rod；41st, suspension arm；42nd, stopper slot；
43rd, roller rock arm；44th, internal lock block；45th, lock shaft block；46th, compression spring assembly；47th, inner lock shaft；48th, gas spring；
49th, strut；50th, fuselage bearing.
Embodiment
A kind of blocking type cargo door of civil aircraft hyperbolic section half, it is characterised in that：Connect in Handle axis 20 inside hatch door
Right-hand side handle mechanism 17 is connected to, ventilation mouth mechanism 18 links with Handle axis 20, and the left and right ends of Handle axis 20 are provided with latch mechanism 14,
The visual detection mechanism 15 that can verify that rotation position is provided with latch mechanism 14；Handle axis 20 links with door bolt axle 21, is fastening with a bolt or latch
Axle 21 is provided at both ends with bolt mechanism 16；Also linkage has opening mechanism 12 in Handle axis 20, includes in opening mechanism 12 and cabin
The be hinged crank II36 of door and the opening mechanism connecting rod 40 being connected with suspension arm 41, the hatch door that links with respect to airframe structure above and below
Motion；
It is logical between Handle axis 20 and ventilation mouth mechanism 18, Handle axis 20 and door bolt axle 21, Handle axis 20 and opening mechanism 12
Cross cam link and four-bar mechanism is linked, so as to realize the transmission of rotational motion.
Described latch mechanism 14 includes the lock shaft lock 27 being enclosed in Handle axis 20, and door bolt axle lock fixed on door bolt axle 21
28。
Include spring 31 in described visual detection mechanism 15, one end of spring 31 is connected on lock shaft lock 27, another
End is connected on indication panel 30, and the upper end of indication panel 30 is pressed on by roller 29 in the roller groove of door bolt axle lock 28, instruction
The position of observation window 33 of the position of panel 30 with being arranged on hatch door is corresponding.
Described bolt mechanism 16 includes door bolt rocking arm 34 and door bolt groove 35, wherein door bolt rocking arm 34 is connected on door bolt axle 21, fastens groove with a bolt or latch
35 are arranged on fuselage mouth mount structure, drive door bolt rocking arm 34 to realize solution door bolt away from or into door bolt groove 35 or fasten with a bolt by fastening axle 21 with a bolt or latch.
Crank II36 in described opening mechanism 12 is connected on the four-bar mechanism driven by Handle axis 20, the other end with
Cabin door structure is articulated and connected, and crank II36 middle part and opening mechanism connecting rod 40 are be hinged, connecting rod 40 and the phase of suspension arm 41 of both sides
Even, suspension arm 41 is articulated and connected with airframe structure simultaneously.
It is also associated with internal latch mechanism 19 in described Handle axis 20, lock shaft block 45 and handle in internal latch mechanism 19
Axle 20 is connected, and inner lock shaft 47 is connected with cabin door structure, and roller rock arm 43 is connected with inner lock shaft 47, and roller rock arm 43 is set
In stopper slot 42, internal lock block 44 is internally additionally provided with lock shaft 47, after hatch door pull-up departs from mouth frame, roller rock arm 43
Depart from stopper slot 42, inner lock shaft 47 drives internal lock block 44 to coordinate with the position of lock shaft block 45, the rotation of lock handle axle 20
Indexing is put.
When specifically used：
As shown in figure 1, cabin door structure of the present invention includes：The exterior skin 7 to match with fuselage appearance, support the crossbeam of covering
5, auxiliary beam 4 and vertical frame 3, the cornual plate 8 of grid beam, support module door sealing performance sealing strip 2 and its fit structure are connected, ensure hatch door gas
The pneumatic seal 6 of dynamic profile, undertake five groups of blocks 1 of supercharging load and ensure the outdoor handle box 9 of outdoor handle sealing.
The unlatching of hatch door is divided into two steps：
First step lifts hatch door to hide block.This stage needs manpower to open, and passes through outdoor handle machine by enabling personnel
Structure 17 drives hatch door to be lifted up.The lifting process of hatch door, which is further divided into, opens air port, unblock, solution door bolt, lifts four steps.
Right-hand side handle mechanism 17（As shown in Figure 3）It is made up of handle cover plate 24 and the outdoor handle 25 being fixedly connected in Handle axis 20.Operation
Person presses lower handle cover plate 24, moves outdoor handle 25 upwards, and outdoor handle 25 drives Handle axis 20 to rotate.Handle axis 20 passes through a set of convex
Take turns linkage and the upset of a set of four-bar mechanism linkage aeration velar plate 26 is opened." cam-connecting rod " mechanism, four-bar mechanism with
And ventilating opening cover plate collectively forms ventilation mouth mechanism 18（As shown in Figure 4）.
Lock shaft lock 27 is fixedly connected with Handle axis 20, door bolt axle lock 28, their common structures are fixedly connected with door bolt axle 21
Into latch mechanism 14（As shown in Figure 5）.Totally two sets of latch mechanism 14, it is arranged at left and right sides of hatch door.Driving outdoor handle 25 is opened
While ventilating opening cover plate 26, lock shaft lock 27 rotates under the drive of Handle axis 20, and now door bolt axle lock 28 is static, which achieves
Unblock operation.Visual detection mechanism 15 is attached on latch mechanism 14, by driving roller 29, indication panel 30, spring 31, crank
I32 and observation window 33 collectively constitute.In the presence of spring 31, driving roller 29 is pressed on the roller groove designed on door bolt axle lock 28
In.When Handle axis 20 drives lock shaft 27 rotation of lock, indication panel 30 produces one under the drive of spring 31, with respect to lock shaft lock 27
Fixed rotation, by driving roller 29 and fastening the cooperation of axle 28 upper idler wheel channels of lock with a bolt or latch, control the anglec of rotation of indication panel 30.Hatch door
When being closed, through the astrodome door state of observation window 33 in cabin door structure, window shows indication panel 30
Color, for green；When handle rotates 8 °, indication panel 30 is rotated away from observation window 33, sees observation window through observation window 33
Itself background color, it is shown in red.Continue control crank, driving roller depart from door bolt axle lock 28, indication panel 30 rotation to and crank
I32 joints, visual detection mechanism 15 no longer produce relative motion with Handle axis 20.
As shown in Fig. 2 door bolt axle 21 both ends are respectively disposed with bolt mechanism 16.Bolt mechanism 16 includes door bolt rocking arm 34 and 35 liang of groove of door bolt
Part（As shown in Figure 7）.Outdoor handle 25 is driven, Handle axis 20 passes through a set of cam link mechanism and a set of four-bar mechanism linkage door bolt
Axle 21（As shown in Figure 8）, so as to drive door bolt rocking arm 34 to rotate, door bolt rocking arm is realized solution door bolt operation away from door bolt groove 35.In door bolt axle 21
Be respectively disposed with Handle axis 20 two pairs of safety springs 22 and lifting power assistant spring 23.Safety spring 22 be arranged on door bolt axle 21 with
Between cabin door structure, Center was used, when hatch door is in the completely closed state, safety spring 22 will fasten shaft compression with a bolt or latch complete
Full position of fastening with a bolt, correct position is in be fastened with a bolt or latch when ensuring hatch door closing.Lifting power assistant spring 23 is arranged on Handle axis 20 and cabin
Between door, for controlling the handle power in hatch door lifting process.Lifting power assistant spring 23 equally used Center,
Control crank opened door initial stage, lifting power assistant spring 23 plays a part of to increase handle power, after center is crossed by mechanism, spring force auxiliary
Hatch door is lifted, and to reduce door open knob power, most the handle power control of enabling overall process within the specific limits, does not produce prominent at last
Become.
As shown in figs. 9-11, Handle axis 20 passes through a set of cam link mechanism and three sets of four-bar mechanisms and the phase of opening mechanism 12
Even, they form the hoisting mechanism 13 of hatch door.Outdoor handle 25 is driven, the double-linked cam linkage of Handle axis 20 rotates, further
Drive three sets of four-bar mechanism rotations.The crank II36 other ends on the four-bar mechanism of the top are hinged with cabin door structure, interlude with
Opening mechanism connecting rod 40 is be hinged.Connecting rod 40 is relatively fixed with suspension arm 41 in lifting process, and suspension arm 41 is cut with scissors with airframe structure
Connect.Linked by outdoor handle 25 and lift four-bar mechanism rotation, crank II36 rotation drives cabin door structure relative to opening mechanism
Suspension arm 41 moves, and so as to link, whole hatch door moves upwards relative to airframe structure.The track that cabin door structure is moved upwards by
Crank II36 rotation and the co- controlling of guiding mechanism 37, guiding mechanism 37 is as shown in Figure 10, by guide wheel 38 and the structure of guide groove 39
Into guide wheel 38 is arranged in guide groove 39, and when cabin door structure is moved upwards, guide wheel 38 moves in guide groove 39, so as to limit
Determine the movement locus of hatch door.Four guiding mechanisms 37 are distributed at left and right sides of hatch door, are arranged in pairs up and down.Wherein guide wheel 38 and cabin
Door is connected, and guide groove 39 is connected with mouth mount structure.
Opened door second step is to flip over opening hatch door.After hatch door lifting terminates, outdoor handle 25 is manipulated extremely
Extreme position, the position of outdoor handle 25 is locked by internal latch mechanism 19.
Inside latch mechanism 19 as shown in figure 12 is by stopper slot 42, roller rock arm 43, internal lock block 44, with Handle axis 20
The lock shaft block 45 being fixedly connected, compression spring assembly 46 and the inner lock shaft 47 being hinged with cabin door structure collectively form.Compression
The one end of spring assembly 46 is connected in inner lock shaft 47, and the other end is connected in cabin door structure.Outside pull-up hatch door, when hatch door takes off
During from mouth frame, roller rock arm 43 departs from stopper slot 42, and inner lock shaft 47 rotates in the presence of spring assembly 46, drives solid thereon
Surely the internal lock block 44 connected, internal lock block 44 coordinate with lock shaft block 45, the rotation of common lock handle axle 20, that is, lock
Determine the position of outdoor handle 25.
Continue outside pull-up hatch door, after certain position, drive hatch door to automatically open up by drive mechanism 11, mechanism end
End is articulated and connected with airframe structure.The opening mechanism 12 of hatch door is formed using double four-bar mechanisms are be hinged, and drive mechanism 11 is by four
Gas spring 48 and a set of four-bar mechanism are formed.When hatch door is opened, gas spring 48 drives the outstanding of opening mechanism 12 by four-bar mechanism
Upper arm 41 rotates, so as to realize that the upset of hatch door is opened.After hatch door is opened to extreme position, operator, which unties, is fixed on hatch door knot
Fitful wind lock 10 on structure, fitful wind lock 10 are made up of strut 49, fuselage bearing 50.Bearing is inserted in the end of strut 49 by operating personnel
In 50, that is, the process of locking is completed, hatch door, which is opened, to be completed.
Claims (6)
- A kind of 1. blocking type cargo door of civil aircraft hyperbolic section half, it is characterised in that：Handle axis inside hatch door（20）Upper company It is connected to right-hand side handle mechanism（17）, mouth mechanism of divulging information（18）With Handle axis（20）Linkage, in Handle axis（20）Left and right ends are provided with Latch mechanism（14）, in latch mechanism（14）On be provided with the visual detection mechanism that can verify that Handle axis rotation position（15）；Handle Axle（20）With fastening axle with a bolt or latch（21）Linkage, in door bolt axle（21）Be provided at both ends with bolt mechanism（16）；Handle axis（20）On also linkage have beat Opening mechanism（12）, opening mechanism（12）In include with hatch door be hinged crank II（36）With with suspension arm（41）Connected opening Mechanism rod（40）, linkage hatch door is with respect to airframe structure up and down motion；Handle axis（20）With mouth mechanism of divulging information（18）, Handle axis（20）With fastening axle with a bolt or latch（21）, Handle axis（20）With opening mechanism（12） Between linked by cam link and four-bar mechanism, so as to realize the transmission of rotational motion.
- A kind of 2. blocking type cargo door of civil aircraft hyperbolic section half according to claim 1, it is characterised in that：Described lock Mechanism（14）Include being enclosed on Handle axis（20）On lock shaft lock（27）, and door bolt axle（21）On be fixed with door bolt axle lock（28）.
- A kind of 3. blocking type cargo door of civil aircraft hyperbolic section half according to claim 2, it is characterised in that：Described mesh Depending on testing agency（15）In include spring（31）, spring（31）One end be connected to lock shaft lock（27）On, the other end is connected to Indication panel（30）On, indication panel（30）Upper end pass through roller（29）It is pressed on door bolt axle lock（28）Roller groove in, instruction Panel（30）Position and the observation window that is arranged in cabin door structure（33）Position it is corresponding.
- A kind of 4. blocking type cargo door of civil aircraft hyperbolic section half according to claim 1, it is characterised in that：Described door bolt Mechanism（16）Include door bolt rocking arm（34）With door bolt groove（35）, wherein fastening rocking arm with a bolt or latch（34）It is connected to door bolt axle（21）On, fasten groove with a bolt or latch（35）If Put on fuselage mouth mount structure, by fastening axle with a bolt or latch（21）Drive door bolt rocking arm（34）Away from or into door bolt groove（35）, realize solution door bolt or lock Door bolt.
- A kind of 5. blocking type cargo door of civil aircraft hyperbolic section half according to claim 1, it is characterised in that：Described beats Opening mechanism（12）In crank II（36）It is connected to by Handle axis（20）On the four-bar mechanism of drive, crank II（36）The other end with Cabin door structure is hinged, crank II（36）Middle part and opening mechanism connecting rod（40）It is hinged, opening mechanism connecting rod（40）With both sides Suspension arm（41）It is connected, suspension arm（41）It is hinged simultaneously with airframe structure.
- A kind of 6. blocking type cargo door of civil aircraft hyperbolic section half according to claim 1, it is characterised in that：Described hand Arbor（20）On be also associated with internal latch mechanism（19）, internal latch mechanism（19）In lock shaft block（45）With Handle axis（20）Phase Even, inner lock shaft（47）It is hinged with cabin door structure, inner lock shaft（47）On be connected with roller rock arm（43）, roller rock arm（43）If Put in stopper slot（42）Interior, internally lock shaft（47）On be additionally provided with internal lock block（44）, after hatch door pull-up departs from mouth frame, Roller rock arm（43）Depart from stopper slot（42）, inner lock shaft（47）Drive internal lock block（44）With lock shaft block（45）Match somebody with somebody position Close, lock handle axle（20）Rotation position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199858.4A CN105667757B (en) | 2016-04-05 | 2016-04-05 | A kind of blocking type cargo door of civil aircraft hyperbolic section half |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199858.4A CN105667757B (en) | 2016-04-05 | 2016-04-05 | A kind of blocking type cargo door of civil aircraft hyperbolic section half |
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| Publication Number | Publication Date |
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| CN105667757A CN105667757A (en) | 2016-06-15 |
| CN105667757B true CN105667757B (en) | 2017-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610199858.4A Active CN105667757B (en) | 2016-04-05 | 2016-04-05 | A kind of blocking type cargo door of civil aircraft hyperbolic section half |
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| CN106697253B (en) * | 2017-01-05 | 2023-09-01 | 江苏美龙振华科技有限公司 | Lifting mechanism for aircraft cabin door |
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| CN108118999B (en) * | 2017-12-21 | 2019-08-02 | 中航沈飞民用飞机有限责任公司 | A kind of cargo door opening mechanism of integrated motor pressurized strut |
| CN108583844B (en) * | 2018-04-19 | 2021-08-13 | 中国商用飞机有限责任公司 | Anti-misoperation device for passenger cabin door of airplane |
| CN109229333B (en) * | 2018-09-25 | 2021-11-02 | 陕西飞机工业（集团）有限公司 | Pull rod structure of aircraft freight cabin door |
| CN109552594B (en) * | 2018-12-11 | 2021-11-02 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Actuating mechanism of crank floating type cabin door |
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| CN111021865B (en) * | 2019-12-09 | 2021-07-09 | 中航沈飞民用飞机有限责任公司 | Blocking type cabin door opening position lock mechanism |
| CN112550661B (en) * | 2020-12-17 | 2022-04-08 | 中航沈飞民用飞机有限责任公司 | Civil aircraft semi-plugging type wing upper emergency cabin door |
| CN112627653B (en) * | 2020-12-17 | 2022-03-18 | 中航沈飞民用飞机有限责任公司 | Door lock device of passenger plane |
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| CN105667757A (en) | 2016-06-15 |
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