CN111021829A

CN111021829A - Civil aircraft cabin door handle clutch

Info

Publication number: CN111021829A
Application number: CN201911248170.0A
Authority: CN
Inventors: 马岩; 李忠霖; 陶金库; 赵小龙; 毛磊凯; 王健
Original assignee: AVIC Sac Commercial Aircraft Co Ltd
Current assignee: AVIC Sac Commercial Aircraft Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-04-17

Abstract

The invention relates to a civil aircraft cabin door handle clutch device which is provided with a handle box fixedly connected with a cabin door structure, wherein a flange bushing is arranged on the handle box, and an inner handle shaft is matched with the flange bushing. The tail end of the inner handle shaft is fixedly connected with a cover plate. Be designed with recess and outer baffle on the sleeve, the design has boss and inner baffle on the spline rod, the recess can mesh with the boss, inside the sleeve was packed into to the spline rod, the spline rod passed through bottom surface and apron fixed connection, the spline rod passes through the spline and cooperates with the epaxial keyway of inner handle, sliding bush is installed to inner handle axle inboard, sliding bush and sleeve cooperation, sleeve and outer handle fixed connection, compression spring arranges in the inner hole of spline rod, one end and bottom surface contact, one end and outer handle contact. When the inner handle is operated, the device can ensure that the outer handle is in a static state; when the outer handle is operated, the device can realize the automatic ejection of the outer handle, and simultaneously, the outer handle can drive the inner handle shaft to realize the two-way movement of opening and closing the door.

Description

Civil aircraft cabin door handle clutch

Technical Field

The invention relates to the field of design of doors of civil airplanes, in particular to a handle clutch device of a door of a civil airplane.

Background

The operating handle of the civil aircraft cabin door is divided into an inner handle and an outer handle. An external handle is mounted on the outer surface of the aircraft fuselage, flush with the aerodynamic surface of the fuselage, for opening or closing the door from outside the aircraft. An inner handle is mounted inside the cabin for opening or closing the door from inside the cabin.

The outer handle of the cabin door is positioned on the outer surface of the machine body, so that the conditions of icing and the like are easy to occur, and if the inner handle and the outer handle of the cabin door are linked, the condition that the cabin door cannot be opened from the inner side due to icing of the outer handle can occur. For reducing the unable normally probability of opening of hatch door, avoid simultaneously when opening the hatch door from inside that the outer handle rotates and causes unexpected such as outside personnel injury, the inside and outside handle of advanced model hatch door adopts the technical scheme who does not link more, and when operating the inner handle promptly, the outer handle is motionless, and when operating the outer handle, the inner handle follow-up. The technical scheme is realized by an inner handle clutch device and an outer handle clutch device.

Disclosure of Invention

The invention aims to provide a civil aircraft cabin door handle clutch device. When the inner handle is operated, the device can ensure that the outer handle is in a static state; when the outer handle is operated, the device can realize the automatic ejection of the outer handle, and simultaneously, the outer handle can drive the inner handle shaft to realize the two-way movement of opening and closing the door.

In order to solve the above problems, the specific technical scheme of the invention is as follows: the utility model provides a civil aircraft hatch door handle clutch, has with hatch door structure fixed connection's handle box, is equipped with the flange bush on the handle box, interior handle axle and the cooperation of flange bush, key-type connection sleeve structure passes through flange bush and interior handle hub connection, the terminal fixedly connected with apron of interior handle axle, the key-type connection sleeve other end is connected with the outer handle.

The key-type connection sleeve by the spline pole of cavity structure, sleeve and compression spring constitute, be equipped with the outer baffle that extends to inside circumference central direction on the sleeve, the circumference distributes on the outer baffle has a plurality of recess, spline pole one end is equipped with boss and the inner baffle that extends to outside circumference direction, the recess is connected with the boss meshing, the spline pole is packed into inside the sleeve, the spline pole passes through bottom surface and apron fixed connection, the spline pole passes through the spline and cooperates with the epaxial keyway of inner handle, the inboard cover of inner handle axle is equipped with sliding bush, sliding bush is connected with the sleeve cooperation, the sleeve other end and outer handle fixed connection, compression spring arranges in the hole of spline pole in, one end and bottom surface contact, one end and outer handle contact.

The number of the bosses is consistent with that of the grooves, and the bosses and the grooves are meshed and connected.

When opening the door from inside, the drive inner handle axle rotates, and the inner handle axle passes through the cooperation of flange bush, and relative handle box rotates, and the spline pole passes through apron and spline and inner handle axle fixed connection, and boss and recess are not meshed this moment, and the spline pole is at the inboard idle running of sleeve, and the relative sleeve of inner handle axle through sliding bush rotates, and sleeve and outer handle keep static.

When opening the door from the outside, remove the position lock back of outer handle, outer handle outwards bounces under compression spring's drive, and the sleeve outwards moves along sliding bush, and outer baffle on the sleeve contacts with the interior baffle on the spline bar, and the meshing is also accomplished with the recess to the boss this moment, rotates outer handle, and the sleeve drives spline bar, inner handle axle and rotates, realizes the linkage of interior outer handle.

The invention has the following advantages:

1. the occupied space is small. The invention has compact layout, integrates all structures in the handle box, and is particularly suitable for small hatches with tense layout. The invention obviously reduces the occupied space of the clutch device and reduces the design difficulty and the design cost of other mechanisms.

2. The automatic ejection device is simple to operate and multifunctional, and can realize automatic ejection of the outer handle of the cabin door. When the cabin door is operated from the outside, the outer handle can drive the inner handle shaft in two directions to realize the opening and closing of the cabin door without operations such as resetting and the like.

3. The application range is wide. The invention adopts a common and mature typical structure connecting form, and can be widely applied to various types of hatches.

Drawings

Fig. 1 is an isometric view of a civil aircraft door handle clutch.

Fig. 2 is an exploded view of the assembly of a door handle clutch device for civil aircraft.

Fig. 3 is a schematic view of the engaging state of the clutch structure of the civil aircraft cabin door handle clutch device.

Fig. 4 is a schematic structural view of a handle shaft and a spline rod in a civil aircraft cabin door handle clutch device.

Fig. 5 is a schematic view of the opening state of the external handle of the civil aircraft cabin door handle clutch device.

Detailed Description

As shown in fig. 1 to 5, the civil aircraft cabin door handle clutch device comprises a handle box 1 fixedly connected with a cabin door structure, wherein a flange bush 4 is arranged on the handle box 1, an inner handle shaft 3 is arranged in the flange bush 4, a key connection sleeve structure is connected with the inner handle shaft 3 through the flange bush 4, the tail end of the inner handle shaft 3 is fixedly connected with a cover plate 2, and the other end of the key connection sleeve is connected with an outer handle 8.

Key-type connection sleeve by the spline pole 5 of cavity structure, sleeve 6 and compression spring 7 are constituteed, be equipped with the outer baffle 11 that extends to inside circumference center direction on the sleeve 6, circumference distribution has a plurality of recess 10 on the outer baffle 11, spline pole 5 one end is equipped with boss 9 and the inner baffle 12 that outside circumference direction extends, recess 10 is connected with the meshing of boss 9, spline pole 5 is packed into inside sleeve 6, spline pole 5 is through bottom surface and 2 fixed connection of apron, spline pole 5 passes through the keyway cooperation on spline and the inner handle axle 3, the inboard cover of inner handle axle 3 is equipped with sliding bush 15, sliding bush 15 is connected with sleeve 6 cooperation, the sleeve 6 other end and outer handle 8 fixed connection, compression spring 7 is arranged in spline pole 5's hole, one end and bottom surface contact, one end and the contact of outer handle 8.

When the door is opened from the inside, the inner handle shaft 3 is driven to rotate, and the inner handle shaft 3 is matched with the flange bushing 4 to rotate relative to the handle box 1. The spline rod 5 is fixedly connected with the inner handle shaft 3 through the cover plate 2 and the spline 14, at the moment, the boss 9 is not meshed with the groove 10, the spline rod 5 idles on the inner side of the sleeve 6, the inner handle shaft 3 rotates relative to the sleeve 6 through the sliding bush 15, and the sleeve 6 and the outer handle 8 are kept static.

When the door is opened from the outside, after the position lock of the outer handle 8 is released, the outer handle 8 is driven by the compression spring 7 to bounce outwards, the sleeve 6 moves outwards along the sliding bush 15 until the outer baffle 11 on the sleeve 6 is contacted with the inner baffle 12 on the spline rod 5, and at this time, the boss 9 is meshed with the groove 10. The outer handle 8 is rotated, and the sleeve 6 drives the spline rod 5 and the inner handle shaft 3 to rotate.

Claims

1. The utility model provides a civil aircraft hatch door handle clutch which characterized in that: have with hatch door structure fixed connection's handle box, be equipped with the flange bush on the handle box, interior handle axle and the cooperation of flange bush, key-type connection sleeve structure passes through flange bush and interior handle hub connection, the terminal fixedly connected with apron of interior handle axle, the key-type connection sleeve other end is connected with the outer handle.

2. The civil aircraft door handle clutching device of claim 1, wherein: the key-type connection sleeve by the spline pole of cavity structure, sleeve and compression spring constitute, be equipped with the outer baffle that extends to inside circumference central direction on the sleeve, the circumference distributes on the outer baffle has a plurality of recess, spline pole one end is equipped with boss and the inner baffle that extends to outside circumference direction, the recess is connected with the boss meshing, the spline pole is packed into inside the sleeve, the spline pole passes through bottom surface and apron fixed connection, the spline pole passes through the spline and cooperates with the epaxial keyway of inner handle, the inboard cover of inner handle axle is equipped with sliding bush, sliding bush is connected with the sleeve cooperation, the sleeve other end and outer handle fixed connection, compression spring arranges in the hole of spline pole in, one end and bottom surface contact, one end and outer handle contact.

3. The civil aircraft door handle clutching device of claim 1, wherein: the number of the bosses is consistent with that of the grooves, and the bosses and the grooves are meshed and connected.

4. The use of a civil aircraft door handle clutching device as claimed in claim 1, wherein: when opening the door from inside, the drive inner handle axle rotates, and the inner handle axle passes through the cooperation of flange bush, and relative handle box rotates, and the spline pole passes through apron and spline and inner handle axle fixed connection, and boss and recess are not meshed this moment, and the spline pole is at the inboard idle running of sleeve, and the relative sleeve of inner handle axle through sliding bush rotates, and sleeve and outer handle keep static.

5. The use of a civil aircraft door handle clutching device as claimed in claim 1, wherein: when opening the door from the outside, remove the position lock back of outer handle, outer handle outwards bounces under compression spring's drive, and the sleeve outwards moves along sliding bush, and outer baffle on the sleeve contacts with the interior baffle on the spline bar, and the meshing is also accomplished with the recess to the boss this moment, rotates outer handle, and the sleeve drives spline bar, inner handle axle and rotates, realizes the linkage of interior outer handle.