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Seaplane cabin door locking device

A seaplane and cabin door lock technology, which is applied in the direction of seaplanes, aircraft accessories, aircraft, etc., can solve problems such as structural layout and connection design problems, cabin door stoppers, etc., to reduce processing costs, reduce precision requirements, reduce The effect of assembly difficulty

Active Publication Date: 2021-12-21
中航通飞华南飞机工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to meet the access requirements of the equipment, the highest position of the latch device needs to be lower than the floor plane of the cabin after the door is opened. To solve the problems of airtightness and watertightness and the stop of the hatch, it brings many difficulties to the structural layout and connection design.

Method used

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  • Seaplane cabin door locking device
  • Seaplane cabin door locking device
  • Seaplane cabin door locking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1. A seaplane cabin door locking device, constituted as Figure 1-7 As shown, it includes a door sill beam 2, and more than one latch device 1 is distributed on the door sill beam 2 along the aircraft course; the described latch device 1 includes a latch support 3, and a coaxial The front fork ear 27 and the rear fork ear 28, the front bush 7 and the rear bush 8 are correspondingly installed in the coaxial holes of the front and rear fork ears, and the shoulders of the front and rear bushes are oppositely arranged and located in the front and rear forks. Between the ears, the rear bush 8 also wears a compression bush 9, and the compression bush 9 passes through the rear bush 8 and then pushes against the shoulder of the front bush 7; the compression bush 9 also wears a latch shaft 11. The latch shaft 11 passes through the compression bush 9 and the front bush 7 in turn and is connected with the lock nut 13; the compression bush 9 between the front and rear fork...

Embodiment 2

[0042] Example 2. A seaplane cabin door locking device, constituted as Figure 1-7As shown, it includes: latch device 1, door sill beam 2, latch support 3, adjustment tooth plate 4, height adjustment backing plate 5, connecting ring 6, front bushing 7, rear bushing 8, compression bushing 9, pad Plate 10, latch shaft 11, adjusting washer 12, lock nut 13, cotter pin 14, concentric adjusting pad 15, fixing bolt 16, flat washer 17, fixing nut 18, stop plane 19, reinforcing rib 20, lap joint Step 21, skin mounting surface 22, sealing rib 23, positioning hole 24, connecting end surface 25, reinforcing rib 26; wherein,

[0043] The latch device 1 is arranged on the body sill beam 2, and there are 4 groups of the latch device 1, which are used to realize the locking between the hatch and the body structure and the stop of the hatch, and to transfer the hoop and directional loads on the hatch. pass to said sill beam 2;

[0044] The upper part of the threshold beam 2 is connected to ...

Embodiment 3

[0059] Example 3. A seaplane cabin door locking device, constituted as Figure 1-7 As shown, it includes: latch device 1, door sill beam 2, latch support 3, adjustment tooth plate 4, height adjustment backing plate 5, connecting ring 6, front bushing 7, rear bushing 8, compression bushing 9, pad Plate 10, latch shaft 11, adjusting washer 12, lock nut 13, cotter pin 14, concentric adjusting pad 15, fixing bolt 16, flat washer 17, fixing nut 18, stop plane 19, reinforcing rib 20, lap joint Step 21, skin mounting surface 22, sealing rib 23, positioning hole 24, connecting end surface 25, reinforcing rib 26 and so on.

[0060] The latch device 1 is arranged on the body sill beam 2, and there are 4 groups of the latch device 1, which are used to realize the locking between the hatch and the body structure and the stop of the hatch, and to transfer the hoop and directional loads on the hatch. pass to said sill beam 2;

[0061] Further, the threshold beam 2 is connected and fixed ...

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Abstract

The invention discloses a seaplane cabin door locking device. The device comprises a doorsill beam, wherein more than one latch device is distributed on the doorsill beam along the course of an airplane; the latch device comprises a latch support, a front fork lug and a rear fork lug which are coaxial are arranged on the latch support along the course of an airplane, a front bush and a rear bush are correspondingly installed in coaxial holes of the front fork lug and the rear fork lug, shoulders of the front bush and the rear bush are oppositely arranged and located between the front fork lug and the rear fork lug, a pressing bush is further arranged in the rear bush in a penetrating mode, the pressing bush penetrates through the rear bush and then abuts against a protruding shoulder of the front bush, a latch shaft is arranged in the pressing bush in a penetrating manner, and the latch shaft sequentially penetrates through the pressing bush and the front bush and then is connected with a locking nut; and a connecting ring is also sleeved on the compression bushing between the front fork lug and the rear fork lug. The device solves problems of cabin door sealing, load transmission, cabin door locking and the like, and has advantages of being simple in structure, convenient to install, easy to maintain and the like.

Description

technical field [0001] The invention belongs to the technical field of aircraft structure design, and in particular relates to a locking device for a cabin door of a seaplane. Background technique [0002] Aircraft doors are usually divided into three types: blocking type, semi-blocking type and non-blocking type. Depending on the type of hatch, the way it is connected to the body is also different. For large seaplane rescue hatches, it is not only necessary to meet special equipment and personnel access requirements, but also to meet airtight and watertight requirements. Rescue hatch doors are often opened outward and upward. It is connected with the body, and the door is connected with the body through the lock mechanism arranged on the door and the latch device fixed on the sill beam of the body below. [0003] In order to meet the access requirements of the equipment, the highest position of the latch device needs to be lower than the floor plane of the cabin after the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C1/14B64C35/00
CPCB64C1/14B64C35/008Y02T50/40
Inventor 丁厚安张浩闫平
Owner 中航通飞华南飞机工业有限公司