CN104443350B - Passenger plane hatch door pressure locking mechanism - Google Patents

Passenger plane hatch door pressure locking mechanism Download PDF

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Publication number
CN104443350B
CN104443350B CN201410638880.5A CN201410638880A CN104443350B CN 104443350 B CN104443350 B CN 104443350B CN 201410638880 A CN201410638880 A CN 201410638880A CN 104443350 B CN104443350 B CN 104443350B
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China
Prior art keywords
cam
vent assemblies
torsion spring
hatch door
roller
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Application number
CN201410638880.5A
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Chinese (zh)
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CN104443350A (en
Inventor
陶金库
马岩
由振华
马超
郑维娟
郭晓庆
Original Assignee
中航沈飞民用飞机有限责任公司
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Priority to CN201410638880.5A priority Critical patent/CN104443350B/en
Publication of CN104443350A publication Critical patent/CN104443350A/en
Application granted granted Critical
Publication of CN104443350B publication Critical patent/CN104443350B/en

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Abstract

The present invention relates to a kind of passenger plane hatch door pressure locking mechanism, the Y-piece being hinged with the vent assemblies being hinged with cabin door structure, connecting rod, with cabin door structure collectively forms four-bar mechanism in conjunction with cabin door structure;Upper roller and bottom roller are respectively equipped with the forked ends of Y-piece, and cam swing mechanism is constituted with cam, cam and hatch door handle are coaxially connected;Ventilating opening rotating shaft on vent assemblies 1 is provided with torsion spring, and one end is acted on vent assemblies, and the other end is acted in cabin door structure, and its torsion spring power makes vent assemblies have the trend opened.The ventilating opening pressure latch mechanism that the locking mechanism is used on passenger plane hatch door, the mechanism has security good, and versatility is high, occupies little space, and part utilization rate is high, lightweight advantage.

Description

Passenger plane hatch door pressure locking mechanism

Technical field

The present invention relates to a kind of passenger plane hatch door pressure locking mechanism, specifically it is applied to for one kind on passenger plane hatch door, The hatch door transmission mechanism of ventilating opening locking is opened and realized under given conditions for linkage complete air port.

Background technology

For passenger plane hatch door, air worthiness regulation AC25.783 regulations:Should have prevents from opening hatch door under uneasy total pressure Measure.At present, generally realize that this is required using flight latch mechanism.Flight latch mechanism space-consuming is big, cost is high, weight is big, grinds Zhi Shixu suppliers participate in, and the lead time is long.A small number of advanced type door designs ventilating opening pressure latch mechanism, locks instead of flight Function, but the design of Prssure lock is usually relatively complex, and part is more, and space-consuming is big, weight weight.

The content of the invention

The technical problem to be solved in the present invention is to provide a kind of passenger plane hatch door pressure locking mechanism, the locking mechanism is used for visitor Ventilating opening pressure latch mechanism on cabin door, the mechanism has security good, and versatility is high, occupies little space, part utilization rate Height, lightweight advantage.

To solve problem above, concrete technical scheme of the invention is as follows:A kind of passenger plane hatch door pressure locking mechanism, has The vent assemblies that are hinged with cabin door structure, connecting rod, with the Y-piece that cabin door structure is hinged collectively form four in conjunction with cabin door structure Linkage;Upper roller and bottom roller are respectively equipped with the forked ends of Y-piece, and cam-swing-bar mechanism is constituted with cam, it is convex Wheel is coaxially connected with hatch door handle;Ventilating opening rotating shaft on vent assemblies 1 is provided with torsion spring, and one end acts on ventilation On mouth component, the other end is acted in cabin door structure, and its torsion spring power makes vent assemblies have the trend opened.

When normally-open, described torsion spring driving vent assemblies are opened, upper roller and cam contact.

When realizing pressure lock function, described torsion spring torsion does not work, roller and cam contact.

By adjusting the torque magnitude of torsion spring, the pressure value of control control vent assemblies Opening pressure locking.

The passenger plane hatch door pressure locking mechanism has the following advantages that:

1st, the mechanism integrated level is high, saves a set of flight latch mechanism.The present invention can be directly integrated into ventilating opening and open machine On structure, without unnecessary mechanism is added, compared to using scheme of the flight latch mechanism as pressure locking mechanism, it can design less A set of mechanism, this greatlys save space and weight, reduces design difficulty and design cost, and these are designed for civil aircraft It is particularly important;

2nd, number of parts is few, and utilization rate is high.In the present invention, Prssure lock latch hook and matched roller are all integrated into On ventilating opening opening mechanism, without individually designed part.The transmission of pressure locking mechanism, it is also ingenious to make use of ventilating opening to open machine Structure is realized, part utilization rate is substantially increased, so as to further save space and weight;

3rd, mechanism is simple, applied widely.Mechanism driving relation of the present invention is simple, use be all conventional and very into Ripe typical mechanism, two kinds of functions are realized by ingenious combination.The present invention can be widely applied on various types of hatch doors;

4th, the pressure value of Opening pressure lock function can accurately be controlled.The present invention can be by adjusting the big of torsion spring torsion It is small, the corresponding hatch door boost values of Opening pressure lock function are accurately controlled, and can be easily according to different Type is adjusted.

Brief description of the drawings

Fig. 1 is the axonometric drawing of passenger plane hatch door pressure locking mechanism.

Fig. 2 is hatch door ventilating opening normally open state schematic diagram.

Fig. 3 is that hatch door ventilating opening pressure locks view.

Embodiment

As shown in figure 1, a kind of passenger plane hatch door pressure locking mechanism, with the vent assemblies 1 being hinged with cabin door structure, even The Y-piece 7 that bar 2 and cabin door structure are hinged collectively forms four-bar mechanism in conjunction with cabin door structure;In the forked ends of Y-piece 7 Upper roller 3 and bottom roller 8 are respectively equipped with, and cam-swing-bar mechanism is constituted with cam 4, cam 4 and hatch door handle are coaxially connected; Ventilating opening rotating shaft 5 on vent assemblies 1 is provided with torsion spring 6, and the one end of torsion spring 6 is acted on vent assemblies 1, and the other end is made For cabin door structure, its torsion spring power makes vent assemblies 1 have the trend opened.

As shown in Fig. 2 when normally-open, the described driving vent assemblies 1 of torsion spring 6 are opened, and upper roller 3 connects with cam 4 Touch.

As shown in figure 3, when realizing pressure lock function, the described torsion of torsion spring 6 does not work, and roller 8 connects with cam 4 Touch.

By adjusting the torque magnitude of torsion spring 6, the pressure value of control vent assemblies 1 Opening pressure locking.

This passenger plane hatch door pressure locking mechanism is comprising ventilating opening is normally-open and pressure locks two kinds of functions.In this set mechanism The spring force of torsion spring 6 make the trend that ventilating opening has the supercharging load in opening trend, cabin to make ventilating opening have closing.Work as cabin When the torque that interior supercharging load is produced is less than spring torque, the inwardly rotation under spring force of vent assemblies 1 causes Roller 3 is pressed on the surface of cam 4.In initial position, cam 4 is in arc section, and roller 3 passes through cam to the pressure of cam 4 Axle center, mechanism driving angle is zero, and cam 4 is in situ motionless.When moving the band rotation of moving cam 4 of hatch door handle, roller 3 continues The surface of cam 4 is compressed under spring force.Trajectory of the roller 3 along cam 4 is moved, so that link by Y-piece 7, The four-bar mechanism of connecting rod 2, ventilating opening 1 and cabin door structure composition is rotated, and realizes the normally-open of ventilating opening.Ventilating opening is normal Open mode is as shown in Figure 2.

When the torque that the supercharging load in cabin is acted on ventilating opening is more than the torque that torsion spring 6 is produced, ventilating opening group Part 1 will be pressed in cabin door structure by supercharging load.Now, move handle band moving cam 4 to rotate, Y-piece 7 keeps in situ, rolling Wheel 3 is separated with cam 4.It is rotated further handle band moving cam 4 to rotate, the lower rail trace of cam 4 starts to contact with roller 8.It is convex The similar latch hook of lower rail trace profile of wheel 4, so " cam-swing rod " mechanism that cam 4 is constituted with roller 8 and Y-piece 7 Drive line angle very little with very big power driving cam 4, it is necessary to could drive Y-piece 7 to rotate, so as to drive ventilating opening 1 to open. By the latch hook of the bottom of cam 4, the pressure lock function of hatch door is realized.Ventilating opening pressure lock-out state is as shown in Figure 3.

Claims (2)

1. a kind of passenger plane hatch door pressure locking mechanism, it is characterised in that:With the vent assemblies being hinged with cabin door structure(1)、 Connecting rod(2)And the Y-piece that cabin door structure is hinged(7)Four-bar mechanism is collectively formed in conjunction with cabin door structure;In Y-piece(7)'s Forked ends are respectively equipped with upper roller(3)And bottom roller(8), and and cam(4)Constitute cam-swing-bar mechanism, cam(4)With cabin Door handle is coaxially connected;Vent assemblies(1 )On ventilating opening rotating shaft(5)It is provided with torsion spring(6), torsion spring(6)One end is acted on Vent assemblies(1)On, the other end is acted in cabin door structure, and its torsion spring power makes vent assemblies(1)Trend with opening; When normally-open, described torsion spring(6)Drive vent assemblies(1)Open, upper roller(3)With cam(4)Contact;Realize pressure During lock function, described torsion spring(6)Torsion does not work, bottom roller(8)With cam(4)Contact.
2. according to the hatch door pressure locking mechanism described in claim 1, it is characterised in that:By adjusting torsion spring(6)Torsion it is big It is small, control vent assemblies(1)The pressure value of Opening pressure locking.
CN201410638880.5A 2014-11-13 2014-11-13 Passenger plane hatch door pressure locking mechanism CN104443350B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410638880.5A CN104443350B (en) 2014-11-13 2014-11-13 Passenger plane hatch door pressure locking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410638880.5A CN104443350B (en) 2014-11-13 2014-11-13 Passenger plane hatch door pressure locking mechanism

Publications (2)

Publication Number Publication Date
CN104443350A CN104443350A (en) 2015-03-25
CN104443350B true CN104443350B (en) 2017-10-13

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Application Number Title Priority Date Filing Date
CN201410638880.5A CN104443350B (en) 2014-11-13 2014-11-13 Passenger plane hatch door pressure locking mechanism

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105129070A (en) * 2015-08-14 2015-12-09 中国航空工业集团公司西安飞机设计研究所 Pressure relief covering cap mechanism with overpressure protection function
CN105059527B (en) * 2015-08-14 2017-04-19 中国航空工业集团公司西安飞机设计研究所 Auxiliary lifting assembly, airplane hatch adopting auxiliary lifting assembly, and airplane
CN106150243B (en) * 2016-08-30 2018-01-05 中航沈飞民用飞机有限责任公司 A kind of lifting locking mechanism of civil aircraft hatch door bolt axle
CN106314756B (en) * 2016-08-30 2018-10-16 中航沈飞民用飞机有限责任公司 A kind of promotion locking mechanism of civil aircraft hatch door locking Handle axis
CN107060553B (en) * 2017-03-23 2018-07-06 西安飞机工业(集团)有限责任公司 Opening handle structure inside and outside a kind of aircraft emergency hatch
CN108583844A (en) * 2018-04-19 2018-09-28 中国商用飞机有限责任公司 Anti-misoperation apparatus for aircraft passengers hatch door
CN109488131A (en) * 2018-12-14 2019-03-19 中航沈飞民用飞机有限责任公司 A kind of hatch door handle latch mechanism

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823473A (en) * 1995-05-15 1998-10-20 The Boeing Company Latch-lock mechanism for load carrying airplane cargo doors
US8047583B2 (en) * 2007-10-04 2011-11-01 B/E Aerospace, Inc. Split handle for aircraft door
CN101570248A (en) * 2009-06-04 2009-11-04 中国航空工业集团公司西安飞机设计研究所 Lifting mechanism of outward opening cabin door
CN102030101A (en) * 2010-11-24 2011-04-27 西安飞机工业(集团)有限责任公司 Aircraft hatch flexible pressure release mechanism
CN202138535U (en) * 2011-02-17 2012-02-08 中国航空工业集团公司西安飞机设计研究所 Outward open type pressurizing cabin door
CN103395490B (en) * 2013-08-18 2015-05-20 中航沈飞民用飞机有限责任公司 Lifting-opening linkage structure for turn-over airliner cabin door
CN103879545B (en) * 2014-03-20 2017-06-09 中国商用飞机有限责任公司 For the hatch door flight lock system of aircraft

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