Lifting mechanism of outward opening cabin door

An outward-opening, cabin door technology, applied in aircraft accessories and other directions, can solve the problems of high cost, high manufacturing precision requirements of cam mechanisms, difficult manufacturing and installation, etc., and achieves the effects of reliable performance, simple mechanism and easy manufacturing.

Inactive Publication Date: 2009-11-04
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cam mechanism has high requirements for manufacturing precision,

Method used

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  • Lifting mechanism of outward opening cabin door
  • Lifting mechanism of outward opening cabin door

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Embodiment Construction

[0010] Below the present invention is described in further detail, see figure 1 , figure 2 .

[0011] The lifting mechanism of the present invention is made up of a lifting rocker arm 2, a lifting rod 3, an upper lifting arm 4 and a lower lifting arm 5. The mechanism mounting seat 8 is fixedly connected with the cabin door 7, and one end of the lifting rocker arm 2 is fixedly connected with the handle shaft 1. The rod end joint 11 of the lower end of the rod 3 is hinged with the middle part of the upper lifting arm 4 , and the left end of the upper lifting arm 4 is installed on the mechanism mount 8 . Lifting rocker arm 2, lifting bar 3, upper lifting arm 4, and mechanism mounting support 8 form a four-bar linkage mechanism with double rockers, which will drive the upper lifting arm to move when the handle handle rotating shaft rotates. The other end of the upper lifting arm 4 is hinged with the stop block 12 on the guide shaft 9; one end of the lower lift arm 5 is install...

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Abstract

The invention belongs to the cabin door mechanism technology of civil aircraft, and relates to a lifting mechanism of an outward opening cabin door. A mounting seat of the lifting mechanism is fixedly connected with the cabin door, one end of a lifting rocker arm is fixedly connected with a handle rotating shaft, the other end is articulated with the upper end of a lifting rod, a rod end joint of the lower end of the lifting rod is articulated with the middle part of an upper lifting arm, one end of the upper lifting arm is arranged in the mounting seat of the lifting mechanism, the other end is articulated with a stop block on a guiding shaft; an outer end of a main hinge is provided with an upper double ear and a lower double ear, the guiding shaft is arranged in through holes of the upper double ear and the lower double ear of the main hinge, and the guide shaft between the upper double ear and the lower double ear is equipped with the stop block, the main hinge is articulated with the cabin door frame, one end of a lower lifting arm is arranged on the mounting seat of the lifting mechanism, the other end is articulated with the stop block on the guiding shaft. The mechanism is simple, has safe and reliable performance, low production and installation cost, and is applicable to cabin doors of the civil aircrafts.

Description

technical field [0001] The invention belongs to the mechanism technology of a passenger cabin door of a civil aircraft, and relates to a lifting mechanism of an outwardly opening cabin door. Background technique [0002] The locking reliability and safety of the civil aircraft cabin door during flight are the key to the door design. The accidental opening of the cabin door during flight will cause the cabin to suddenly depressurize, often leading to accidents involving aircraft crashes and fatalities. According to the opening direction, the hatch can be divided into an inward opening hatch and an outward opening hatch. The inward-opening door is a "blocking" door, which is simple and reliable in force transmission, and is easy to meet the safety requirements of door locking. However, because the inward-opening door occupies the cabin space during opening and closing, the civil Most of the cabin doors are outward opening doors. In order to realize the force transmission cha...

Claims

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Application Information

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IPC IPC(8): B64C1/14
Inventor 高明亮柳洪芬
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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