CN103603555A

CN103603555A - Cabin door lock

Info

Publication number: CN103603555A
Application number: CN201310373461.9A
Authority: CN
Inventors: 李超; 赵书旺; 付涛; 赵楠; 雷兴涛
Original assignee: Xian Aircraft Design and Research Institute of AVIC
Current assignee: Xian Aircraft Design and Research Institute of AVIC
Priority date: 2013-08-23
Filing date: 2013-08-23
Publication date: 2014-02-26
Anticipated expiration: 2033-08-23
Also published as: CN103603555B

Abstract

The invention belongs to design technologies of door lock mechanisms of aircraft cabins and particularly relates to a novel cabin door lock. The current status of an existing cabin door lock mechanism is a combination of a planar four-bar linkage mechanism and a slider-crank mechanism, the structure of the cabin door lock mechanism is dispersed, and the occupied space is large; design is performed according to specific types as required so that the universality performance is poor; a lock handle protrudes from the surface of an aircraft body, and accordingly the attractiveness of the appearance is affected; other structures need to be designed for insurance and accordingly the reliability is affected. The novel cabin door lock is characterized by comprising a lock frame, an inner handle, an outer handle, a fastener, a sliding piece, a locking piece, a key lock, a gas spring and the like, an embedded handle is utilized in the novel cabin door lock, and the inner handle and the outer handle do not protrude from the surface of the cabinet door when the cabin door is locked; the structure is compact, the size is small, the weight is light, the structure is ingenious and reasonable, and the transmission efficiency is high; double insurance is utilized both in opening and locking, the operation is simple and labor-saving, and accidental opening of the cabin door can be prevented, and accordingly the reliability and the safety of the opening and the closing of the cabin door can be guaranteed; the novel cabin door lock is applicable to various small-sized aircrafts and high in universality and can greatly reduce the costs of the products through mass production.

Description

A kind of cabin door lock

Technical field

The invention belongs to aircraft door lock mechanism design technology, be specifically related to a kind of cabin door lock.

Background technology

This cabin door lock, for being installed on baby plane cockpit door or passenger's hatch door, is realized the unlatching of hatch door and the latch mechanism of locking function.For baby plane, because its overall structure is little, hatch door can be very not large, and baby plane is used for sightseeing tour use in addition, needs larger form, causes the design space of cabin door lock to be subject to great limitation.In order to ensure the reliability of hatch door locking, lock pin need to guarantee to have enough strokes on the other hand, and this causes the latch mechanism can not be too little on the one hand.

Existing cabin door lock mechanism As-Is is the combination of lanar four rod mechanism and slider-crank mechanism, and its structure is disperseed, and takes up room large; Need according to concrete type design, versatility is poor; Lock handle protrudes fuselage surface, affects good looking appearance; Need to design other structures and insure, reliability is affected.

Summary of the invention

The object of the invention is: cabin door lock meets to be opened and lock simultaneously inside and outside aircraft door; Meet and can be arranged in limited space; Meet and mate with hatch door existing structure, after use, meet the instructions for use of hatch door system; And cabin door lock is safe and reliable.

Technical scheme of the present invention is: a kind of cabin door lock, it is characterized in that, comprise lock frame 1, Internal handle 8, outer handle 43, hasp 5, slide plate 7, stop locking plate 28, key lock 4, air spring 48 etc., lock frame 1 is characterized as the box structure with two support arms, its structure comprises axis hole, the joint that connects air spring, chute and erection bolt hole; Internal handle 8 is characterized as shell type structure, comprises axis hole, joint 1 and the joint 2 of lock pin before and after indirectly or directly connecting, the joint 3 of connection air spring, hole 1 and the snap hole 2 of peace that latch is installed, the chute of an inner position-limiting action; Outer handle 43 is characterized as crank structure, comprises handle, linking arm and connecting axle; Stop locking plate 28 is characterized as disc structure, comprises gap, lightening hole, and axis hole and hammerlock are (as mistake! Do not find Reference source.); Key lock 4 is selected finished product, requires its feature to automatically reset.

Its type of attachment is characterised in that: the outer handle 43 of Internal handle 8 is fixed together by axle 42, the form of cutting with scissors by cylinder with lock frame 1 is connected, stop locking plate 28, by axle 42, under the state of closing at lock, can not be rotated (as mistake by slide plate 7 and the constraint that is fixed on the latch 31 on Internal handle 8! Do not find Reference source.), under the state of opening at lock, can be around axle 42 rotations; Slide plate 7 one end are connected with hasp 5, and the other end is arranged in the chute of Internal handle 8, and hasp 5 is connected with the form that Internal handle 8 cuts with scissors by cylinder.The joint 1 of Internal handle 8 connects together by jaw connecting rod 33 with lock pin 38, first the joint 2 of Internal handle 8 is connected with slide bar 17 one end, the motion of slide bar 17 other ends is subject to locking the chute constraint on frame 1, and connect together by jaw connecting rod 11 with lock pin 12, above-mentioned type of attachment is cylinder hinge.

Its functional character is:

(1) hasp 5 is opened form with Internal handle 8 combinations and key lock 4 with the dual fail-safe of outer handle 43 combinations;

(2) that opening of cabin door lock closed is more laborsaving for the ingenious use of air spring 48.

The operating principle of this cabin door lock is as follows:

(1) in passenger cabin, open locking hatch door:

Outwards pluck out hasp 5, overcome the active force of torsionspring 20, hasp 5 is rotated around connecting bolt 9, drive slide plate 7 to slide along the chute of Internal handle 8 simultaneously, guarantee that Internal handle 8 can not interfere with stop locking plate 28 when axle 42 rotation, continue to apply outside active force, hasp 5 is around the extreme position that rotatablely moves of connecting bolt 9, thereby drive Internal handle 8 to rotate around axle 42, Internal handle 6 joints 1 of double lever form drive jaw connecting rod 33, and then band pendulum lock pin 38 motion indentation hatch doors, meanwhile the joint 2 of Internal handle 6 with moving slide-bar 17 along lock frame 1 runner movement, drive jaw connecting rod 11, and then band pendulum lock pin 12 motion indentation hatch doors.The air spring 48 that rotarily drives of Internal handle 8 rotates around connecting bolt 44 on the one hand, force on the other hand air spring 48 along the axis compression of self, when air spring 48 rotates through after horizontal critical localisation, latch mechanism is under air spring self-acting power, be opened to maximum rating, now two lock pin detachment machines spacing hole with it, outwards promotes hatch door, and hatch door is opened.In like manner, close after hatch door, promote inwards Internal handle 8, crossed after critical localisation, Internal handle automatically restores to initial position, realizes hatch door locking operation, and hasp 3, under the effect of torsionspring 20, also automatically restores to initial position.Here, under the state of only opening at snap close 5, Internal handle 8 just can be opened hatch door, and therefore, this cabin door lock has double insurance, can effectively prevent the hidden danger that hatch door is surprisingly opened.

(2) the present locking hatch door of opening out of my cabin

Use key to open key lock 4, make the hammerlock of key lock depart from stop locking plate 28, outwards pluck out outer handle 43, outer handle 43 is connected with axle 42, together with being affixed to Internal handle 8 by pin 30 again, the cause in addition Internal handle 8 that rotarily drives of handle is rotated together with stop locking plate 28, thereby realizes the unlatching of hatch door.In like manner, close after hatch door, promote inwards outer handle 43 to initial position, the hammerlock of stop locking plate 28 could be pushed the hammerlock of key lock 4 open, and when passing through completely, the hammerlock of key lock 4 returns upper lock position (as mistake! Do not find Reference source.), realize hatch door locking operation.Key lock and outer handle have formed the dual fail-safe form of opening at hatch door outward herein.

The invention has the beneficial effects as follows: this cabin door lock adopts flush type handle, hatch door is the not outstanding hatch door of inside and outside handle surface under locking state; More compact structure, volume is little, lightweight, and it is ingenious reasonable to build, and transmission efficiency is high; Open locking and all adopt double insurance, simple to operate laborsaving and can prevent that hatch door from surprisingly opening, thus guaranteed reliability and the safety of hatch door open and close; Be applicable to all kinds of baby planes, highly versatile, by batch production, reduces the cost of product greatly.

Accompanying drawing explanation

Fig. 1 cabin door lock mechanism forms;

Fig. 2 cabin door lock internal construction;

Fig. 3 cabin door lock closed condition structural representation;

Fig. 4 cabin door lock open mode structural representation;

The process of locking between Fig. 5 stop locking plate and key lock;

Fig. 6 locks frame schematic diagram;

Fig. 7 Internal handle schematic diagram;

The outer handle schematic diagram of Fig. 8;

Fig. 9 stop locking plate schematic diagram

Table 1 cabin door lock part name

1	Lock frame	2	Countersunk bolt	3	Scotch	4	Key lock	5	Hasp
										6	Connecting bolt	7	Slide plate	8	Internal handle	9	Connecting bolt	10	Pad
11	Jaw connecting rod	12	Lock pin	13	Pin	14	Cotter bolt	15	Pod
										16	Clip	17	Slide bar	18	Connecting bolt	19	Pod	20	Torsionspring
21	Clip	22	Pad	23	Lining	24	Connecting bolt	25	Lining
										26	Pod	27	Pad	28	Stop locking plate	29	Pad	30	Pin
31	Latch	32	Pad	33	Jaw connecting rod	34	Pin	35	Cotter bolt
										36	Cotter bolt	37	Pin	38	Lock pin	39	Pad	40	Pod
41	Lining	42	Axle	43	Outer handle	44	Connecting bolt	45	Clip
										46	Clip	47	Pad	48	Air spring	49	Lining	50	Pin

The specific embodiment

Below in conjunction with accompanying drawing, the present invention is described in further detail:

(1) in passenger cabin, open locking hatch door:

Outwards pluck out hasp 5, pull out Internal handle 8, outwards promote hatch door, hatch door is opened;

Close after hatch door, inwardly promote Internal handle 8, hatch door locking.

(2) the present locking hatch door of opening out of my cabin

Use key to open key lock 4, outwards pluck out outer handle 43, outside pull-up hatch door, hatch door is opened; Close after hatch door, inwardly promote outer handle 28, hatch door locking.

Claims

1. a cabin door lock, it is characterized in that, comprise lock frame (1), the outer handle of Internal handle (8) (43), hasp (5), slide plate (7), stop locking plate (28), key lock (4), air spring (48) etc., lock frame (1) is characterized as the box structure with two support arms, its structure comprises axis hole, the joint that connects air spring, chute and erection bolt hole; Internal handle (8) is characterized as shell type structure, comprise axis hole, joint (1) and the joint (2) of lock pin before and after indirectly or directly connecting, the joint (3) of connection air spring, hole (1) and the peace snap hole (2) of latch are installed, the inner chute that plays position-limiting action; Outer handle (43) is characterized as crank structure, comprises handle, linking arm and connecting axle; Stop locking plate (28) is characterized as disc structure, comprises gap, lightening hole, axis hole and hammerlock; Key lock (4) is selected finished product, requires its feature to automatically reset;

The outer handle of Internal handle (8) (43) is fixed together by axle (42), the form of cutting with scissors by cylinder with lock frame (1) is connected, stop locking plate (28) is by axle (42), under the state of closing at lock, the constraint that is subject to slide plate (7) and is fixed on the latch (31) on Internal handle (8) can not be rotated, under the state of opening at lock, can rotate around axle (42); Slide plate (7) one end is connected with hasp (5), and the other end is arranged in the chute of Internal handle (8), and hasp (5) is connected with the form that Internal handle (8) cuts with scissors by cylinder; The joint (1) of Internal handle (8) connects together by jaw connecting rod (33) with lock pin (38), the joint (2) of Internal handle (8) is first connected with slide bar (17) one end, the motion of slide bar (17) other end is subject to locking the chute constraint on frame (1), and connect together by jaw connecting rod (11) with lock pin (12), above-mentioned type of attachment is cylinder hinge.