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Manual retracting mechanism of ramp door

A technology of retractable mechanism and gangway door, which is applied to the fuselage, aircraft parts, transportation and packaging, etc., can solve the problems of large installation space, high requirements for carrying aircraft, and high complexity, and achieves convenient operation, guarantees safety, reduces Use the desired effect

Inactive Publication Date: 2016-01-06
CHENGDU FULI WEIHANG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gangway door retractable device needs to be driven by the hydraulic source on the machine, and is equipped with a special driving mechanism, which leads to the need to power on the carrier when the gangway retractable device executes the closing action, which has high requirements for the carrier and the entire device takes up a lot of space , high complexity, low reliability

Method used

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  • Manual retracting mechanism of ramp door
  • Manual retracting mechanism of ramp door
  • Manual retracting mechanism of ramp door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A manual retractable mechanism for a gangway door, comprising an upper handrail assembly 20 , a support rod 10 , a triangular piece 50 , a movable ear piece 60 , a lower handrail assembly 70 and a folding device 40 .

[0041] The upper armrest assembly 20 includes a connecting rod one 21 and a connecting rod two 22, one end of the connecting rod one 21 is hinged with the door frame, the other end of the connecting rod one 21 is hinged with one end of the connecting rod two 22, and the other end of the connecting rod two 22 is connected with the triangular piece 50 hinged.

[0042] The lower armrest assembly 70 includes a lower armrest connecting rod 71 and a connecting rod 12 72 .

[0043] One end of the lower handrail connecting rod 71 is hinged with the triangular piece 50 through the axis 5e, the other end of the lower handrail connecting rod 71 is hinged with one end of the connecting rod 12 72, and the other end of the connecting rod 12 72 is hinged with the gangwa...

Embodiment 2

[0054] A manual retractable mechanism for a gangway door, comprising an upper handrail assembly 20 , a support rod 10 , a triangular piece 50 , a movable ear piece 60 , a lower handrail assembly 70 and a folding device 40 .

[0055] The upper armrest assembly 20 includes a connecting rod one 21 and a connecting rod two 22, one end of the connecting rod one 21 is set in the connecting rod two 22 or one end of the connecting rod two 22 is set in the connecting rod one 21, the connecting rod one 21 and the connecting rod Two 22 form a telescopic movement mechanism; the other end of connecting rod one 21 is hinged with the door frame, and the other end of connecting rod two 22 is hinged with triangle piece 50.

[0056] The lower armrest assembly 70 includes a lower armrest connecting rod 71 and a connecting rod 12 72; one end of the lower armrest connecting rod 71 is hinged to the triangular piece 50 through the axis 5e, and the other end of the lower armrest connecting rod 71 is h...

Embodiment 3

[0066] A manual retractable mechanism for a gangway door, comprising an upper handrail assembly 20 , a support rod 10 , a triangular piece 50 , a movable ear piece 60 , a lower handrail assembly 70 and a folding device 40 .

[0067] The upper armrest assembly 20 includes a connecting rod one 21 and a connecting rod two 22, one end of the connecting rod one 21 is set in the connecting rod two 22 or one end of the connecting rod two 22 is set in the connecting rod one 21, the connecting rod one 21 and the connecting rod Two 22 form a telescopic movement mechanism; the other end of connecting rod one 21 is hinged with the door frame, and the other end of connecting rod two 22 is hinged with triangle piece 50.

[0068] The lower armrest assembly 70 includes a lower armrest connecting rod 71 and a connecting rod 12 72; one end of the lower armrest connecting rod 71 is hinged to the triangular piece 50 through the axis 5e, and the other end of the lower armrest connecting rod 71 is h...

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PUM

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Abstract

The invention discloses a manual retracting mechanism of a ramp door. The manual retracting mechanism comprises an upper handrail assembly, a supporting rod, a triangular piece, a movable lug piece, a lower handrail assembly and a folding device. The upper handrail assembly and the triangular piece are hinged through a first axial line, the triangular piece and the movable lug piece are hinged through a second axial line, the movable lug piece and the supporting rod are hinged through a fourth axial line, the supporting rod and the lower handrail assembly are hinged through a third axial line, and the lower handrail assembly and the triangular piece are hinged through a fifth axial line. The supporting rod and the ramp door are hinged. The folding device is connected to a door frame, the supporting rod and the ramp door. The manual retracting mechanism has the advantages of being simple in structure, convenient to operate, low in manufacturing cost and high in reliability, avoiding on-board power sources by adopting manual retracting, lowering the use requirement for aerial carriers, being small in occupied space after being folded, providing handrails for passengers to ascend or descend a ramp and guaranteeing the safety of the passengers.

Description

technical field [0001] The invention belongs to the field of auxiliary mechanical devices for gangway doors of airplanes or helicopters, and relates to a manual retractable mechanism for gangway doors. Background technique [0002] The gangway door is the passage for passengers and crew to enter and exit the cabin, and it can also be used as an emergency exit in case of emergency. The manual retractable mechanism of the gangway door is installed between the gangway door and the machine body. It is mainly used for opening and closing the gangway door. At the same time, it has the function of a handrail. When passengers pass by the gangway door, it plays a role of support and protection to ensure the safety of passengers. [0003] Chinese patent document CN103112582A discloses a ramp door retractable device. The retractable device for the gangway door includes: a connecting mechanism, which is retractably connected between the gangway door and the door frame, and controls the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C1/24
Inventor 曾强曾晓康
Owner CHENGDU FULI WEIHANG TECH CO LTD