CN205010471U

CN205010471U - Folding gangway ladder door of footboard

Info

Publication number: CN205010471U
Application number: CN201520747205.6U
Authority: CN
Inventors: 曾强; 胡泊; 李成行; 卢强
Original assignee: Chengdu Fuli Weihang Science & Technology Co Ltd
Current assignee: Chengdu Fuli Weihang Science & Technology Co Ltd
Priority date: 2015-09-25
Filing date: 2015-09-25
Publication date: 2016-02-03
Anticipated expiration: 2025-09-25

Abstract

The utility model discloses a folding gangway ladder door of footboard, connect the gangway ladder door in its bottom including aircraft door frame and rotation, still include the folding footboards of a plurality of levels, gangway ladder door inboard sets up a footboard gangbar, and every grade of footboard one end articulates in the footboard gangbar. The utility model discloses a folding footboard, when the gangway ladder door was closed, each folding footboard was also all folded thereupon and is packed up, and occupation space is little, and the aesthetic property is good.

Description

The folding gangway ladder door of a kind of pedal

Technical field

The invention belongs to aircraft or helicopter gangway ladder door auxiliary machinery field, relate to a kind of gangway ladder door, particularly the folding gangway ladder door of a kind of pedal.

Background technology

Gangway ladder door is the hatch door mechanism that aircraft or helicopter hatch door and gangway ladder unite two into one, and for the upper and lower cabin of occupant, requires that it has the features such as convenient operation, Stability Analysis of Structures, safe and reliable, succinct exquisiteness, conserve space.

Existing gangway ladder door pedal is one-piece construction, and pedal cannot fold.After gangway ladder door is closed, protruding pedal takies space in more cabin, thus reduces the degree of utilization in space in cabin; Meanwhile, due to this body contour of pedal feature, affect the aesthetic property in cabin, globality, and may be dangerous to personnel Yi Zaocheng in cabin.

Utility model content

Goal of the invention of the present utility model is: for above-mentioned Problems existing, and provide a kind of pedal folding gangway ladder door, each pedal has folding function.

The technical solution adopted in the utility model is such:

The folding gangway ladder door of a kind of pedal, the gangway ladder door comprising aircraft doorframe and be rotatably connected on bottom it, comprises some grades of Foldable pedals, arranges pedal linkage bar inside described gangway ladder door, and every grade of pedal is hinged on pedal linkage bar respectively.

Technique scheme, its improvement is to adopt folding pedal, and when gangway ladder door is closed, each Foldable pedal is also thereupon all folding to be packed up, and take up room little, aesthetic property is good.

As preferably, described Foldable pedal comprises the first strut member, the second strut member and the 3rd strut member, described first strut member one end and gangway ladder door hinged, the other end and second strut member one end hinged, described 3rd strut member one end and gangway ladder door hinged, the other end and the second strut member other end hinged.First strut member, the second strut member and the 3rd strut member and gangway ladder door form a lanar four rod mechanism jointly.Described second strut member outside its two ends hinge-point without extension.

As preferably, described pedal linkage bar is a STATEMENT OF FEDERALLY SPONSORED, this STATEMENT OF FEDERALLY SPONSORED and Foldable pedal at different levels is unified is hinged on same position, and articulated position is between the hinge-point of arbitrary strut member two ends or the hinge-point place at the second strut member two ends.This preferred version is a kind of preferred structure of pedal linkage bar.

As preferably, described pedal linkage bar is a STATEMENT OF FEDERALLY SPONSORED, the same position of hinged some attachment lug corresponding every grade of Foldable pedal respectively in this STATEMENT OF FEDERALLY SPONSORED, on the hinged place bearing pin that the described attachment lug other end is fixedly connected on the first strut member and gangway ladder door or on the hinged place bearing pin of the 3rd strut member and gangway ladder door.

Pedal linkage bar can also be other any structures, acts on as long as can play interlock to each Foldable pedal.

In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:

1, when gangway ladder door opens or closes, whole Foldable pedal realizes interlock and launches or pack up, and reaches the purpose of the present utility model.

2, when gangway ladder door is opened, whole Foldable pedal links expansion under the effect of pedal linkage bar, moves to the mechanical position limitation by Foldable pedal self behind desired location, makes Foldable pedal be in complete deployed condition, can supply the upper and lower cabin of occupant;

3, when gangway ladder door is closed, whole Foldable pedal links and packs up under the effect of pedal linkage bar, and move to the mechanical position limitation by pedal self behind desired location, make Foldable pedal be in complete collapsed state, the Foldable pedal after packing up does not protrude doorframe;

4, the expansion of Foldable pedal and process of packing up simple, operation is smooth, meets and uses needs, pedal pack up after in flat state, meet appearance design lifting requirement.

Accompanying drawing explanation

Fig. 1 is the structural representation that embodiment of the present utility model is in deployed condition.

Fig. 2 is Foldable pedal of the present utility model interlock principle schematic.

Fig. 3 is the structural representation of embodiment of the present utility model when being in deployed condition.

Fig. 4 is the cutaway view of embodiment of the present utility model when being in folded state.

Mark in figure: 1 is the first strut member, 2 is the second strut member, and 3 is the 3rd strut member, and 4 is doorframe, and 5 is pedal linkage bar, and 6 is gangway ladder door.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in detail.

Embodiment:

As shown in Figure 1, the folding gangway ladder door of a kind of pedal, comprises aircraft doorframe 4 and is rotatably connected on the gangway ladder door 6 bottom it, also comprise some grades of Foldable pedals, arrange pedal linkage bar 5 inside described gangway ladder door 6, every grade of pedal is hinged on pedal linkage bar 5 respectively.

As shown in Figure 2, described Foldable pedal comprises the first strut member 1, second strut member 2 and the 3rd strut member 3, described first strut member 1 one end and gangway ladder door 6 hinged, the other end and second strut member 2 one end hinged, described 3rd strut member 3 one end and gangway ladder door 6 hinged, the other end and second strut member 2 other end hinged.

When the gangway ladder door of above-described embodiment is launched as shown in Figure 3, after closedown, the state of every one-level Foldable pedal as shown in Figure 4.

Claims

1. the folding gangway ladder door of pedal, comprises gangway ladder door (6), and some grades of Foldable pedals, and gangway ladder door (6) is hinged on aircraft doorframe (4) bottom; It is characterized in that: described gangway ladder door (6) inner side arranges pedal linkage bar (5), every grade of pedal is hinged on pedal linkage bar (5) respectively, described Foldable pedal comprises the first strut member (1), the second strut member (2) and the 3rd strut member (3), described first strut member (1) one end and gangway ladder door (6) hinged, the other end and the second strut member (2) one end hinged, described 3rd strut member (3) one end and gangway ladder door (6) hinged, the other end and the second strut member (2) other end hinged, three strut members and gangway ladder door form four-bar linkage jointly; Described second strut member (2) outside its two ends hinge-point without extension.

2. the folding gangway ladder door of a kind of pedal according to claim 1, it is characterized in that: described pedal linkage bar (5) is a STATEMENT OF FEDERALLY SPONSORED, this STATEMENT OF FEDERALLY SPONSORED and Foldable pedal at different levels are unified is hinged on same position, and articulated position is between the hinge-point of arbitrary strut member two ends or the hinge-point place at the second strut member (2) two ends.

3. the folding gangway ladder door of a kind of pedal according to claim 1, it is characterized in that: described pedal linkage bar (5) is a STATEMENT OF FEDERALLY SPONSORED, the same position of hinged some attachment lug corresponding every grade of Foldable pedal respectively in this STATEMENT OF FEDERALLY SPONSORED, the described attachment lug other end be fixedly connected on the first strut member (1) and the hinged place bearing pin of gangway ladder door (6) or the 3rd strut member (3) with on the hinged place bearing pin of gangway ladder door (6).