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Cabin door air vent mechanism directly driven by handle and driving method thereof

A vent and hatch technology, applied in the field of hatch vent mechanism and its drive, can solve the problems of increased processing, assembly and maintenance costs, complicated mechanism form, and large space occupation

Active Publication Date: 2019-03-19
AVIC SAC COMML AIRCRAFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of mechanism is complicated, which not only increases the cost of processing, assembly and maintenance, but also has low transmission accuracy and takes up a lot of space

Method used

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  • Cabin door air vent mechanism directly driven by handle and driving method thereof
  • Cabin door air vent mechanism directly driven by handle and driving method thereof
  • Cabin door air vent mechanism directly driven by handle and driving method thereof

Examples

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Embodiment Construction

[0021] Such as Figure 1 to Figure 3 As shown, a door vent mechanism directly driven by the handle, the bottom of the vent panel 3 is fixedly connected with an inclined inner handle assembly 4, and the common connection between the vent panel 3 and the inner handle assembly 4 is connected to the vent shaft 2 , the vent shaft 2 is hingedly connected with the cabin door structure 1; a crank 5 is respectively provided at both ends of the vent shaft 2, one end of the crank 5 is fixedly connected with the vent shaft 2, and the other end is hinged to the telescopic shaft 7 through a pin shaft, The other end of the telescopic shaft 7 is hinged with the ear piece 8 fixedly arranged on the cabin door structure 1, and a compression spring 6 is coaxially arranged on the telescopic shaft 7, and the two ends of the compression spring 6 are supported on the limit platforms on both sides of the telescopic shaft 7; The compression spring 6 presses the vent panel 3 against the hatch structure ...

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Abstract

The invention relates to a cabin door air vent mechanism directly driven by a handle. The bottom of an air vent panel is fixedly connected with an inner handle assembly which is obliquely arranged; acommon joint between the air vent panel and the inner handle assembly is connected with an air vent shaft; the air vent shaft is hinged and connected with a cabin door structure; cranks are arranged at two ends of the air vent shaft respectively; one end of each crank is fixedly connected with the air vent shaft and the other end of each crank is hinged with a retractable shaft through a pin shaft; the other end of each retractable shaft is hinged with a tab which is fixedly arranged on the cabin door structure; each retractable shaft is coaxially provided with a compression spring and two ends of each compression spring are supported on limiting platforms at two sides of the corresponding retractable shaft; and the compression springs are used for tightly pressing the air vent panel on the cabin door structure through the cranks. According to the mechanism provided by the invention, the inner handle assembly and the air vent panel are fixedly connected and a middle transmission mechanism is omitted, so that the transmission precision is improved and the mechanism is operated reliably; and the cabin door air vent mechanism has the advantages of saving a cabin door space and reducing the weight.

Description

technical field [0001] The invention relates to a cabin door vent mechanism directly driven by a handle and a driving method thereof, belonging to the field of civil aircraft cabin door design. Background technique [0002] In order to meet the requirements of the CCAR25 on the door pressurization prevention function, the dangerous door of the civil aircraft, multi-design vent mechanism, through the opening and closing of the vent panel, to prevent the aircraft pressurization when the door is not completely closed functions to unsafe levels. At present, the connection between the vent panel of the civil aircraft door and the door handle is mostly connected by transmission mechanisms such as a four-bar mechanism and a cam mechanism. This type of mechanism is complicated in form, which not only increases the cost of processing, assembly and maintenance, but also has low transmission accuracy and takes up a lot of space. Contents of the invention [0003] The technical prob...

Claims

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Application Information

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IPC IPC(8): B64C1/14
CPCB64C1/14
Inventor 陶金库马岩刘丽强杨炎通李建伟毕波
Owner AVIC SAC COMML AIRCRAFT
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