CN201633919U - Cabin door stay bar for airplane - Google Patents
Cabin door stay bar for airplane Download PDFInfo
- Publication number
- CN201633919U CN201633919U CN201020000513XU CN201020000513U CN201633919U CN 201633919 U CN201633919 U CN 201633919U CN 201020000513X U CN201020000513X U CN 201020000513XU CN 201020000513 U CN201020000513 U CN 201020000513U CN 201633919 U CN201633919 U CN 201633919U
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- CN
- China
- Prior art keywords
- supporting seat
- airplane
- fixed
- door
- cabin door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a cabin door stay bra for an airplane, comprising a movable supporting seat, a fixing supporting seat, connection rods and flat headed shaft assemblies, wherein the movable supporting seat is fixed on the inner side of a passenger door; the fixing supporting seat is fixed on the inner side of a fuselage doorframe; one end of the first connection is connected with the movable supporting seat through the first flat headed shaft assembly, and the other end is connected with the second connection rod through the second flat headed shaft assembly; and the other end of the second connection rod is connected with the fixing supporting seat through the third flat headed shaft assembly to form a four connection rod mechanism. When the passenger door is opened, the stay bar can be fixed on a stable position to prevent the accidental close of the passenger door caused by external factors such as wind, and the like when passengers get on or get off the airplane. The cabin door stay bar for the airplane enables the cabin door to maintain an opening state. The utility model has the advantages of compactness, portability, simple process and low cost, and cannot generate any additional load to the cabin door of the airplane.
Description
One, technical field
The utility model relates to a kind of aircraft door strut, particularly a kind of four link type hatch door strut.
Two, background technology
Existing aircraft adopts usually that pneumatic strut supports, fixing hatch door, makes hatch door be in open mode.This pneumatic strut is manufacturing process complexity, cost height not only, and can produce an increment load to hatch door, influences the service life of hatch door.Even some aircraft door has used the mechanical type strut, but the shared space of this mechanical type strut is bigger, uses also inconvenient.
Three, summary of the invention
At existing aircraft door strut manufacturing process complexity, cost height, the deficiency such as big that takes up room, the utility model provides a kind of four link type strut on the hatch door on the aircraft that is used for, and it is little that the strut of this form has a volume, and little characteristics take up room during work.
The technical scheme that the utility model is taked is as follows: comprise expansion bearing, fixed bearing, connecting rod, tack Shaft assembly, expansion bearing are fixed on the cabin door inboard, and fixed bearing is fixed on fuselage doorframe inboard, one end of first connecting rod passes through the first tack Shaft assembly and is connected with expansion bearing, the other end is connected with second connecting rod by the second tack Shaft assembly, and the other end of second connecting rod is connected with fixed bearing by the 3rd tack Shaft assembly, constitutes four-bar linkage.
After cabin door was opened, strut can be fixed on a stable position, prevented when the passenger goes on or off the plane, and closed because of external factor such as wind make the hatch door accident.This aircraft door strut can be so that hatch door maintains open mode.The small volume and less weight of this mechanism, the simple cost of technology is low, and can not produce increment load to aircraft door.
Four, description of drawings
Fig. 1 is the utility model structural representation, wherein, and 1: expansion bearing, 2: fixed bearing, 3: first connecting rod, 4: second connecting rod, 5: cabin door, 6: fuselage doorframe, 7: the first tack Shaft assemblies, 8: the second tack Shaft assemblies, 9: the three tack Shaft assemblies.
The specific embodiment
Provide a kind of aircraft door strut one better embodiment of the utility model below by the utility model in order better to illustrate.
See also Fig. 1, it is the structural representation of a kind of aircraft door strut one better embodiment of the utility model.
A kind of aircraft door strut of the utility model comprises fixed bearing 2, expansion bearing 1, connecting rod, tack Shaft assembly, expansion bearing 1 are fixed on cabin door 5 inboards, and fixed bearing 2 is fixed on fuselage doorframe 6 inboards, one end of first connecting rod 3 passes through the first tack Shaft assembly 7 and is connected with expansion bearing 1, the other end is connected with second connecting rod 4 by the second tack Shaft assembly 8, and the other end of second connecting rod 4 is connected with fixed bearing 2 by the 3rd tack Shaft assembly 9, constitutes four-bar linkage.
When cabin door was opened, cabin door 5 drove expansion bearing 1 and moves together, plays the rocking arm effect in four-bar linkage, be driving lever, first connecting rod 3, second connecting rod 4 are follower lever in four-bar linkage, and fuselage doorframe 6 and fixed bearing 2 are fixed link in four-bar linkage.Expansion bearing 1 pan is a driving lever length to the distance of hatch door hinge axis, fixed bearing 2 pans are fixed link length to the distance of hatch door hinge axis, the length of first connecting rod 3 and second connecting rod 4 is respectively follower lever length, driving lever and fixed link length and greater than two follower lever length and, just there is the dead point of moving in four-bar linkage like this.When hatch door was opened to certain angle, four-bar linkage was in dead center position, and at this moment cabin door just is stabilized in this position.When needs are closed cabin door, as long as with pulling first connecting rod 3 or second connecting rod 4, make four-bar linkage walk around dead center position, hatch door just can freely have been closed.
This four link type strut can be so that hatch door maintains open mode.The small volume and less weight of this mechanism, the simple cost of technology is low, can not produce increment load to hatch door.
Claims (1)
1. aircraft door strut, comprise expansion bearing, fixed bearing, connecting rod, the tack Shaft assembly, it is characterized in that: expansion bearing (1) is fixed on cabin door (5) inboard, fixed bearing (2) is fixed on fuselage doorframe (6) inboard, one end of first connecting rod (3) passes through the first tack Shaft assembly (7) and is connected with expansion bearing (1), the other end is connected with second connecting rod (4) by the second tack Shaft assembly (8), and the other end of second connecting rod (4) is connected with fixed bearing (2) by the 3rd tack Shaft assembly (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020000513XU CN201633919U (en) | 2010-01-07 | 2010-01-07 | Cabin door stay bar for airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020000513XU CN201633919U (en) | 2010-01-07 | 2010-01-07 | Cabin door stay bar for airplane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201633919U true CN201633919U (en) | 2010-11-17 |
Family
ID=43078403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020000513XU Expired - Fee Related CN201633919U (en) | 2010-01-07 | 2010-01-07 | Cabin door stay bar for airplane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201633919U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604597A (en) * | 2013-12-04 | 2014-02-26 | 中国飞机强度研究所 | Cabin door mounting system |
| CN105329436A (en) * | 2015-11-17 | 2016-02-17 | 江西洪都航空工业集团有限责任公司 | Covering cap brace device |
| CN105552740A (en) * | 2016-02-01 | 2016-05-04 | 洛阳润奥供电有限公司 | High-voltage electric cabinet with adjustable door-opening angle |
| CN112173128A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Splint hinge is with throwing vaulting pole device of putting |
| CN113335494A (en) * | 2020-03-02 | 2021-09-03 | 中航西飞民用飞机有限责任公司 | Support structure and support method for upturning cargo hold door of airplane |
-
2010
- 2010-01-07 CN CN201020000513XU patent/CN201633919U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604597A (en) * | 2013-12-04 | 2014-02-26 | 中国飞机强度研究所 | Cabin door mounting system |
| CN103604597B (en) * | 2013-12-04 | 2016-04-20 | 中国飞机强度研究所 | A kind of hatch door installation system |
| CN105329436A (en) * | 2015-11-17 | 2016-02-17 | 江西洪都航空工业集团有限责任公司 | Covering cap brace device |
| CN105552740A (en) * | 2016-02-01 | 2016-05-04 | 洛阳润奥供电有限公司 | High-voltage electric cabinet with adjustable door-opening angle |
| CN113335494A (en) * | 2020-03-02 | 2021-09-03 | 中航西飞民用飞机有限责任公司 | Support structure and support method for upturning cargo hold door of airplane |
| CN112173128A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Splint hinge is with throwing vaulting pole device of putting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20150107 |
|
| EXPY | Termination of patent right or utility model |