CN105667823A - Access ladder for aircraft - Google Patents
Access ladder for aircraft Download PDFInfo
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- CN105667823A CN105667823A CN201410662688.XA CN201410662688A CN105667823A CN 105667823 A CN105667823 A CN 105667823A CN 201410662688 A CN201410662688 A CN 201410662688A CN 105667823 A CN105667823 A CN 105667823A
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- ladder
- ladder frame
- web member
- aircraft
- airstair
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Abstract
The invention belongs to a structural technology of aircraft approach equipment, and relates to an access ladder for an aircraft. The access ladder comprises connecting fittings (1), upper ladder assemblies (2), a handrail (3), low ladder assemblies (4), steps (5), wheels (6), hooks (7) and rubber backers (8), wherein the connecting fittings (1), the hooks (7) and the rubber backers (8) are connected with the upper ends of the upper ladder assemblies (2) through fasteners; connecting lugs (9) of the upper ladder assemblies (2) are in shaft connection with connecting lugs (9) of the lower ladder assemblies (4); the steps (5) are connected with the upper ladder assemblies (2) and the lower ladder assemblies (4) through the fasteners. The access ladder disclosed by the invention adopts an aluminum alloy riveted structure that the ladder assemblies can be folded, and can be used on two sides of the variable cross section of a fuselage, so as to realize dual purposes of one ladder. The time is saved, the human resources are saved, the weight is lightened, the storage space is reduced, and the access ladder is convenient to use and quick to mount.
Description
Technical field
The invention belongs to the structure technology of aircraft close to equipment, it relates to a kind of aircraft boarding ladder.
Background technology
The terraced aircraft for going on or off the plane for boarding personnel of aircraft boarding, close to equipment, is generally made up of web member, upper ladder frame, handrail, lower ladder frame, step, wheel, hook. Web member is used for the connection of aircraft boarding ladder with aircraft hatch door. If aircraft left and right hatch door is positioned at airframe variable cross-section place, the web member of airstair is different from the deflection angle of upper ladder frame, uses so traditional airstair is only suitable for single side at airframe variable cross-section place. Due to aircraft utilization space constraint, aircraft need both sides all can boarding, in order to head it off, two kinds of methods can be adopted: one is under the prerequisite meeting timeliness, it is equipped with two airstairs, can use in left and right boarding doorframe bottom respectively, but add portable weight and the storage space of aircraft; Two is only be equipped with an airstair, adopts exchange both sides airstair web member to meet left and right boarding, has so not only added the time but also labor intensive, reduced timeliness of turning out for work. In addition, the steel construction that traditional airstair is integrated, can not realize folder function, not only takies space big, and adds weight, and inconvenience is carried at random.
Summary of the invention
It is an object of the invention to: provide a kind of in both sides, airframe variable cross-section place all can general, working efficiency height, be convenient to the aircraft boarding ladder that carries at random.
The technical scheme of the present invention is:
A kind of aircraft boarding ladder, is characterized by: described airstair comprises web member 1, upper ladder frame 2, handrail 3, lower ladder frame 4, step 5, wheel 6, hook 7, rubber something or somebody to fall back on 8 form; Web member 1, hook 7 are all connected with upper ladder frame 2 upper end by fastening piece with rubber something or somebody to fall back on 8; The attachment lug 9 of upper ladder frame 2 is connected by axle with the attachment lug 9 of lower ladder frame 4; Step 5 is all connected by fastening piece with upper ladder frame 2 and lower ladder frame 4; Handrail 3 is arranged on the right side of ladder frame 2; Wheel 6 is arranged on lower ladder frame 4 times ends; Described rubber something or somebody to fall back on 8 is positioned at ladder frame 2 upper end, contacts with airframe covering, slides after preventing airstair to be subject to power; There is deflection angle with upper ladder frame 2 in described web member 1, deflection angle is the average of airframe variable cross-section place left and right sides deflection angle;Described web member 1 is completely identical two pieces, comprises termination and stock; The termination of described web member 1 can prevent web member 1 from deviating from from the hanging ladder hole of aircraft hatch door doorframe bottom; The cross-sectional diameter of the stock of described web member 1 is the maximum value of the stock cross-sectional diameter in the hanging ladder hole that all can load aircraft hatch door doorframe bottom, left and right.
Upper ladder frame and the lower ladder frame of described airstair have employed aluminum alloy materials.
It is an advantage of the invention that: airstair of the present invention have employed the ladder folding aluminium alloy rivetstructure of frame, it is possible to general in both sides, airframe variable cross-section place, namely realize a ladder dual-purpose. Both the time that saved in turn saves manpower, and alleviates weight, reduces memory space, it may also be useful to convenient, quick for installation.
Accompanying drawing explanation
Fig. 1 is airstair front view of the present invention;
Fig. 2 is that the A of airstair front view of the present invention is to enlarged view;
Fig. 3 is airstair left view of the present invention;
Fig. 4 is the partial enlarged view of airstair left view of the present invention;
Fig. 5 is the folding view of airstair of the present invention;
Wherein, ladder frame, 5-step, 6-wheel, 7-hook, 8-rubber something or somebody to fall back on, 9-attachment lug under 1-web member, 2-upper ladder frame, 3-handrail, 4-.
Embodiment
Below the present invention is described in further detail. See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of aircraft boarding ladder, it is made up of web member 1, upper ladder frame 2, handrail 3, lower ladder frame 4, step 5, wheel 6, hook 7, rubber something or somebody to fall back on 8. Web member 1, hook 7 are all connected with upper ladder frame 2 upper end by fastening piece with rubber something or somebody to fall back on 8, the attachment lug 9 of upper ladder frame 2 is connected by axle with the attachment lug 9 of lower ladder frame 4, step 5 is all connected by fastening piece with upper ladder frame 2 and lower ladder frame 4, handrail 3 is arranged on the right side of ladder frame 2, and wheel 6 is arranged on lower ladder frame 4 times ends. When on ground, landing gate left with aircraft or right landing gate doorframe bottom are connected staff, web member 1 is along the runner movement of aircraft upper door frame bottom, thus whole ladder hanging ladder hole with aircraft hatch door doorframe bottom is connected securely, simultaneously ladder two, frame bottom wheel 6 contact with ground firm; When staff is aboard and when on ground, nobody picks, the hook 7 of airstair is directly connected by staff aboard with aircraft boarding doorframe floor, it is firm to be contacted with aircraft fuselage skin by ladder frame upper rubber something or somebody to fall back on 8, can effectively control ladder steady, simultaneously ladder two, frame bottom wheel 6 contact with ground firm. When needs and aircraft portable, by folding upper ladder frame, lower ladder frame and handrail, parking space can be reduced, see Fig. 5.
The present invention improves the reason of versatility: the web member of airstair and the deflection angle of upper ladder frame adopt the average of airframe variable cross-section place left and right sides deflection angle, and the cross-sectional diameter of the stock of web member is the maximum value of the stock cross-sectional diameter in the hanging ladder hole that all can load aircraft hatch door doorframe bottom, left and right, realize the general of left and right sides web member, reduce portable weight. Such as: when on the left of aircraft, landing gate uses airstair, the web member 1 of airstair is 60 ° with the deflection angle of upper ladder frame 2, when on the right side of aircraft, landing gate uses airstair, the web member 1 of airstair is 63 ° with the deflection angle of upper ladder frame 2, the average adopting both sides deflection angle is 61.5 °, and the cross-sectional diameter of the stock of web member is the maximum value Φ 15 of the stock cross-sectional diameter that all can load aircraft hatch door hanging ladder hole, left and right, it is achieved left and right sides web member general.
Additionally by fold mechanism, reducing airstair memory space, structure is simple, and cost is low, efficiency of turning out for work height.
The principle of work of the present invention is: when on ground, landing gate left with aircraft or right landing gate doorframe bottom are connected staff, web member 1 is along the runner movement of aircraft upper door frame bottom, thus whole ladder is connected with aircraft hanging ladder hole securely, simultaneously ladder two, frame bottom wheel 6 contact with ground firm; When staff is aboard and when on ground, nobody picks, the hook 7 of airstair is directly connected by staff aboard with aircraft boarding doorframe floor, it is firm to be contacted with aircraft fuselage skin by ladder frame upper rubber something or somebody to fall back on 8, can effectively control ladder steady, simultaneously ladder two, frame bottom wheel 6 contact with ground firm. When needs and aircraft portable, by folding upper ladder frame 2, lower ladder frame 4 and handrail 3, parking space can be reduced.
Claims (2)
1. an aircraft boarding ladder, is characterized by: described airstair comprises web member (1), upper ladder frame (2), handrail (3), lower ladder frame (4), step (5), wheel (6), hook (7), rubber something or somebody to fall back on (8) composition; Web member (1), hook (7) are all connected with upper ladder frame (2) upper end by fastening piece with rubber something or somebody to fall back on (8); The attachment lug (9) of upper ladder frame (2) is connected by axle with the attachment lug (9) of lower ladder frame (4); Step (5) is all connected by fastening piece with upper ladder frame (2) and lower ladder frame (4); Handrail (3) is arranged on ladder frame (2) right side; Wheel (6) is arranged on lower ladder frame (4) lower end; Described rubber something or somebody to fall back on (8) is positioned at ladder frame (2) upper end, contacts with airframe covering, slides after preventing airstair to be subject to power; There is deflection angle with upper ladder frame (2) in described web member (1), deflection angle is the average of airframe variable cross-section place left and right sides deflection angle; Described web member (1) is completely identical two pieces, comprises termination and stock; The termination of described web member (1) can prevent web member (1) from deviating from from the hanging ladder hole of aircraft hatch door doorframe bottom; The cross-sectional diameter of the stock of described web member (1) is the maximum value of the stock cross-sectional diameter in the hanging ladder hole that all can load aircraft hatch door doorframe bottom, left and right.
2. aircraft boarding according to claim 1 ladder, is further characterized in that: upper ladder frame (2) and lower ladder frame (4) of described airstair have employed aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662688.XA CN105667823B (en) | 2014-11-19 | 2014-11-19 | A kind of Airstairs of airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662688.XA CN105667823B (en) | 2014-11-19 | 2014-11-19 | A kind of Airstairs of airplane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105667823A true CN105667823A (en) | 2016-06-15 |
| CN105667823B CN105667823B (en) | 2018-07-06 |
Family
ID=56945536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410662688.XA Active CN105667823B (en) | 2014-11-19 | 2014-11-19 | A kind of Airstairs of airplane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105667823B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477023A (en) * | 2016-11-30 | 2017-03-08 | 江西洪都航空工业集团有限责任公司 | A kind of random airstair of folded turnover formula |
| CN108423181A (en) * | 2017-02-14 | 2018-08-21 | 江西昌河航空工业有限公司 | A kind of collapsible ascending stair of aircraft door |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6951265B2 (en) * | 2003-08-04 | 2005-10-04 | Ballymore Company, Inc. | Foldable stairway ladder |
| CN201078182Y (en) * | 2007-09-29 | 2008-06-25 | 李恩斌 | Aluminum ladder |
| CN202170747U (en) * | 2011-07-02 | 2012-03-21 | 河海大学 | Multifunctional emergency ladder |
| CN202508285U (en) * | 2011-12-23 | 2012-10-31 | 成都航利航空科技有限责任公司 | Folding type boarding ladder of airplane |
-
2014
- 2014-11-19 CN CN201410662688.XA patent/CN105667823B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6951265B2 (en) * | 2003-08-04 | 2005-10-04 | Ballymore Company, Inc. | Foldable stairway ladder |
| CN201078182Y (en) * | 2007-09-29 | 2008-06-25 | 李恩斌 | Aluminum ladder |
| CN202170747U (en) * | 2011-07-02 | 2012-03-21 | 河海大学 | Multifunctional emergency ladder |
| CN202508285U (en) * | 2011-12-23 | 2012-10-31 | 成都航利航空科技有限责任公司 | Folding type boarding ladder of airplane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477023A (en) * | 2016-11-30 | 2017-03-08 | 江西洪都航空工业集团有限责任公司 | A kind of random airstair of folded turnover formula |
| CN108423181A (en) * | 2017-02-14 | 2018-08-21 | 江西昌河航空工业有限公司 | A kind of collapsible ascending stair of aircraft door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105667823B (en) | 2018-07-06 |
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