CN107060553B

CN107060553B - Opening handle structure inside and outside a kind of aircraft emergency hatch

Info

Publication number: CN107060553B
Application number: CN201710179068.4A
Authority: CN
Inventors: 郑永罡; 李君强; 刘少鹏
Original assignee: Xian Aircraft Industry Group Co Ltd
Current assignee: Xian Aircraft Industry Group Co Ltd
Priority date: 2017-03-23
Filing date: 2017-03-23
Publication date: 2018-07-06
Anticipated expiration: 2037-03-23
Also published as: CN107060553A

Abstract

Opening handle structure inside and outside a kind of aircraft emergency hatch, contain hatch door, outdoor handle, inner handle, first connecting rod, second connecting rod, first rocking arm, second rocking arm, third rocking arm, lock pin, inner handle is fixed on the inside of hatch door, with tongue linked, outdoor handle is located at the outside of hatch door, the outdoor handle is hinged on by being located at the short axle of one side middle and upper part in the groove on the outside of hatch door, handle is using short axle as center of rotation, the outer end of short axle is connected with the first rocking arm, first rocking arm is interlocked by first connecting rod and the second rocking arm, second rocking arm and third rocking arm are fixed on the both ends of a universal driving shaft in the same direction, it is hinged in the middle part of the universal driving shaft on hatch door body, third rocking arm is connected by the tail end of second connecting rod and lock pin, lock pin is constrained by hatch door pilot hole.

Description

Opening handle structure inside and outside a kind of aircraft emergency hatch

Technical field

This application involves airplane structural design technologies, are further the field of structural design of aircraft door, specifically aircraft Opening handle structure inside and outside emergency hatch.

Background technology

MA60 aircrafts emergency hatch opener form is to have applied the older unlatching form of decades at present, this Kind of mechanism form is fairly simple, and due to seal request during practical application, hatch door must compress and compress band, institute when closed It is bigger to open and close power, when this opener is opened from inside, opened by the structural member of larger arm of force and Hatch door is closed to open.But under case of emergency, when needing external opening hatch door, due to aircraft configuration requirement and hatch door door body knot Structure limits, and the space for installing handle mechanism is too small, so being designed as a push type opening ways, inner handle extends outward one A small boss, boss are flushed with covering.Boss is pressed with hand, rotates inner handle opened door.This boss is equivalent to the right-hand side Handle.This pressing plate can only press opening inwards by thumb.Firstly, since space limits, when this pressing plate presses, away from The arm of force of rotary shaft is smaller, so it is larger to open the power needed.Secondly the power provided using thumb press is smaller.Third, cabin Door open position is higher away from ground, and personnel need padded auxiliary tool, and aircraft exterior is smooth, the place that hand is not grabbed, from aircraft During the pressure handle of outside, be not easy to make power very much, these factors determine this operating method when actually emergent substantially from it is external not It can open.Decades ago, escape door does not use this emergency door release mode under normal circumstances yet, so airworthiness requirement is not It is very stringent, aircraft is allowed to be run under this form always.But with the development of aircraft industry, Flight Safety is increasingly As an important operating index or even as primary index, airworthiness requirement is naturally for the factor of influence aircraft safety It is required that higher and higher, at this moment, smooth, reliable, rapid unlatching of the escape door when meeting an urgent need just becomes a critically important safety It ensures, this emergency door release is difficult for that, the form often do not opened even, just has to improved mechanism shape as one Formula.

Invention content

The purpose of the application is that for this emergent handle apparatus that uses at present be difficult from external manpower when emergent It opens, is unsatisfactory for the present situation of the requirement of present civilian airworthiness standard completely, propose a kind of reduction opening force, operation easily makes power, Have no effect on opening structure inside and outside the aircraft emergency hatch of aircraft configuration.

A kind of inside and outside opening structure of aircraft emergency hatch connects containing hatch door, outdoor handle, inner handle, first connecting rod, second Bar, the first rocking arm, the second rocking arm, third rocking arm, lock pin, inner handle are fixed on the inside of hatch door, link with lock pin, outdoor handle position In the outside of hatch door, which is characterized in that the outdoor handle is hinged on by being located at the short axle of one side middle and upper part on the outside of hatch door Groove in, for handle using short axle as center of rotation, the outer end of short axle is connected with the first rocking arm, the first rocking arm by first connecting rod with The gearing of second rocking arm, the second rocking arm and third rocking arm are fixed on the both ends of a universal driving shaft in the same direction, and the middle part of the universal driving shaft is hinged On hatch door body, third rocking arm is connected by the tail end of second connecting rod and lock pin, and lock pin is constrained by hatch door pilot hole.

In use, when inner handle cannot be opened for some reason, first outdoor handle is pressed with hand and beat markd position, make handle outside It rotates a low-angle and produces outside the groove on the outside of aircraft door, at this moment can grasp handle rotates power, and handle turns Locked groove that is dynamic hatch door lock pin finally to be pulled to move down by universal driving shaft, rocking arm, connecting rod, being detached from doorframe, so as to opened door.

The advantageous effect of the application is：It is rational in infrastructure, simple, convenient, easily make power, while personnel's opened door When can hold handle, make power outward, while after hatch door is opened, can continue to catch hatch door, will not generate after pushing inward hatch door, Hatch door is swung in cabin, injures the passenger for waiting for and fleeing from cabin.The rocking arm size of handle transmission shaft can be adjusted during design, be made out It is suitable to open handle power size, is easily opened hatch door, while sealing structure is simple when urgent, sealed reliable.

The application is described in further detail with reference to embodiments：

Description of the drawings

Fig. 1 handles are illustrated at whole hatch door position.

Fig. 2 handles are closed, and handle mechanism is illustrated in the case of hatch door locking.

Fig. 3 handles are opened, and hatch door can open the signal of situation handle mechanism.

Fig. 4 mechanisms connection signal

Explanation is numbered in figure：1 hatch door, 2 outdoor handles, 3 handle boxes, 4 first rocking arms, 5 first connecting rods, 6 second rocking arms, 7 Three rocking arms, 8 second connecting rods, 9 lock pins, 10 back-moving springs, 11 inner handles, 12 locked grooves, 13 red circulars label, 14 torsional springs, 15 Moving axis, 16 short axles

Specific embodiment

Specific embodiment contains hatch door 1, outdoor handle 2, interior as shown in the figure, the inside and outside opening structure of aircraft emergency hatch Handle 11, first connecting rod 5, second connecting rod 8, the first Rocker arm 4, the second rocking arm 6, third rocking arm 7, lock pin 9, inner handle 11 are fixed on The inside of hatch door 1 is linked with lock pin 9, and outdoor handle 2 is located at the outside of hatch door 1, which is characterized in that the outdoor handle 2 passes through position Short axle 16 in one side middle and upper part is hinged in the groove in 1 outside of hatch door, and in implementation, which is one and is formed with sheet metal component One handle box 3, handle box make to keep apart in outdoor handle and cabin, be sealed between handle box 3 and short axle 16 with sealing ring, in this way Handle mechanism just meets aircraft sealing requirements, while outdoor handle 2 is imbedded in handle box 3 during 1 closed state of emergency hatch, with Aircraft door shape flushes, and it is pneumatic not interfere with aircraft.Outdoor handle 2 is center of rotation with short axle 16, and the outer end of short axle 16 connects There is the first Rocker arm 4, the first Rocker arm 4 is interlocked by first connecting rod 5 and the second rocking arm 6, and the second rocking arm 6 and third rocking arm 7 are solid in the same direction The both ends of a universal driving shaft 15 are scheduled on, the middle part of the universal driving shaft 15 is hinged on the door body structure of hatch door 1, and third rocking arm 7 passes through Second connecting rod 8 is connect with the tail end of lock pin 9, and lock pin 9 is constrained by pilot hole on hatch door 1, forms outdoor handle transmission chain.

In embodiment, a back-moving spring 10, the other end connection of the back-moving spring 10 are connected simultaneously on third rocking arm 7 In hatch door door body, third rocking arm 7 is made to be in a kind of state of tension, this enables 9 auto lock of lock pin and keeps lock pin will not It is skidded off from the locked groove 12 of doorframe, this is that Flight Safety is necessarily required.Usually hatch door is not needed to from external opening, cabin The internal inner handle 11 there are one with outdoor handle linkage of door is normally opened hatch door and is all opened by inner handle 11.In addition exist A torsional spring 14 is additionally provided in the short axle of outdoor handle 1, when acting as hatch door closing, the torsion of torsional spring 14 makes handle be maintained at handle In box 3, it will not shake.And when in use since torsion is small, it can be pressed with finger at fixed handle upper end red circular label 13, Make handle to go out rotation one low-angle.At this moment handle is grasped again and is rotated up.

It is emphasized that the torsion of outdoor handle short axle position installation torsional spring is smaller, there are two this torsional spring 14 tools acts on, First, increase this torsional spring, outdoor handle 2 to the negative direction of unlatching can be compressed, outdoor handle 2 is kept to be stuck in handle box.Such as Fruit protrudes the theoretical shape of aircraft because handle does not compress, and aircraft will seriously affect Aerodynamic Configuration of Aireraft in flight, by It is bigger in air-flow, it is possible to outdoor handle be blown off or surprisingly open emergency hatch, and aberdeen cutlet occur.Secondly, The strength of back-moving spring 10 that lock pin 9 tenses upwards to be compared inside handle mechanism larger, while between lock pin 9 and lock Have frictional force, so to overcome these power, need bigger torque (handle opening force originally is big, it is difficult to unlatching be exactly because For this reason), so, in design, handle joint gap makes handle have certain reserved stroke, is not fully rotated into Position, and the torsional spring 14 small by increasing this torsion, make outdoor handle be tightened in handle box, flush aircraft configuration holding.This Kind design first can make outdoor handle rotate a certain angle outward, be held convenient for hand when just opening hatch door with smaller power The easy further opened door of handle.

Here say that, the pulling force of back-moving spring cannot reduce again, because this pulling force will ensure that lock pin 9 is seated, and is had There is certain reliability, hatch door is prevented to be opened accidentally, so opening for handle cannot be reduced by reducing the pulling force of back-moving spring Qi Li.

When emergent, if hatch door 1 cannot be opened from inside, it is necessary to rapidly from external opening, at this moment be pressed with hand Lower 2 red circular label of outdoor handle, 13 position makes handle screw out a part, then grasps outdoor handle 2 and rotate up, connecting rod Mechanism makes lock pin 9 overcome the pulling force of back-moving spring 10, skids off locked groove 12, and opens hatch door 1.At this moment operating personnel's hand catches the right-hand side Handle 2, hand steered 1 lower part of habitation door of another, can also facilitate and hatch door 1 is moved away from otherwise, to withdraw channel cleanup barrier Hinder, personnel is made smoothly to withdraw.

Claims

1. a kind of inside and outside opening structure of aircraft emergency hatch connects containing hatch door, outdoor handle, inner handle, first connecting rod, second Bar, the first rocking arm, the second rocking arm, third rocking arm, lock pin, inner handle are fixed on the inside of hatch door, link with lock pin, outdoor handle position In the outside of hatch door, which is characterized in that the outdoor handle is hinged on by being located at the short axle of one side middle and upper part on the outside of hatch door Groove in, outdoor handle is using short axle as center of rotation, and the outer end of short axle is connected with the first rocking arm, and the first rocking arm passes through first connecting rod It is interlocked with the second rocking arm, the second rocking arm and third rocking arm are fixed on the both ends of a universal driving shaft, the middle part hinge of the universal driving shaft in the same direction It is connected in hatch door door body, third rocking arm is connected by the tail end of second connecting rod and lock pin, and lock pin is constrained by hatch door pilot hole.

2. the inside and outside opening structure of aircraft emergency hatch as described in claim 1, which is characterized in that outdoor handle is located at outside hatch door In the groove of side, which is one and forms a handle box with sheet metal component, with sealing between handle box and the short axle of outdoor handle Circle sealing.

3. the inside and outside opening structure of aircraft emergency hatch as claimed in claim 1 or 2, which is characterized in that in the outdoor handle Short axle on set there are one torsional spring.

4. the inside and outside opening structure of aircraft emergency hatch as claimed in claim 3, which is characterized in that connected on third rocking arm One back-moving spring, the other end of the back-moving spring are connected in hatch door door body, and third rocking arm is made to be in a kind of state of tension.