CN102235125B - Limiting mechanism for airplane cabin doors - Google Patents
Limiting mechanism for airplane cabin doors Download PDFInfo
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- CN102235125B CN102235125B CN201010168411.3A CN201010168411A CN102235125B CN 102235125 B CN102235125 B CN 102235125B CN 201010168411 A CN201010168411 A CN 201010168411A CN 102235125 B CN102235125 B CN 102235125B
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- China
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- hatch door
- bracing frame
- stopper arms
- limiting mechanism
- opening handle
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Abstract
The invention provides a limiting mechanism for airplane cabin doors, which can be used in airplane electronic cabins incapable of providing a larger layout space. The limiting mechanism comprises a stop arm, an opening handle, a torsional spring, a limiting element, a plug-in ear, a supporting bracket, an anchoring element and the like, wherein the stop arm and the opening handle are respectively pivotally arranged on two parallelly-spaced vertical webs of the supporting bracket, and can pivotally rotate around a pivot crossly arranged on the two vertical webs; and the torsional spring is sleeved on the pivot and arranged between the stop arm and the opening handle, thereby driving the stop arm and the opening handle to move synchronously. The limiting mechanism disclosed by the invention is simple in structure, and has no high requirements for mounting spaces while the automatic limiting and fixation of opening of cabin doors are ensured.
Description
Technical field
The present invention relates to a kind of aircraft door position-limit mechanism, especially the structural position-limit mechanism of civil aircraft electronic equipment cabin door.
Background technology
Below the driving cabin of aircraft, be provided with electronics bay, equipment compartment is provided with hatch door to facilitate maintainer's access device cabin.Conventionally, the hatch door of equipment compartment need to be equipped with position-limit mechanism, causes the damage of door and equipment frame to avoid hatch door to bump against equipment frame in unrestricted rotation process; Also in the time of can avoiding hatch door to only depend on deadweight to rest on equipment frame, surprisingly fall and close, maintenance personal and hatch door structure are damaged simultaneously.
At present, the position-limit mechanism generally using on each civil aircraft is mostly arranged on aircraft door away from rotating shaft place, and when this structure can make mechanism act on hatch door, the arm of force is larger, by the large arm of force, only need to propose less requirement of strength to this mechanism.But, can provide this position-limit mechanism of the large arm of force all need to away from rotating shaft one end, provide larger arrangement space at hatch door.But, not that each aircraft can both be arranged for hatch door position-limit mechanism provides large space, if once the indoor environment of aircraft can not, to the spacing headspace of hatch door, just cannot design traditional fixing position-limit mechanism for hatch door.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, limiting mechanism for airplane cabin doors that requirements of installation space is not high.
For achieving the above object, limiting mechanism for airplane cabin doors according to the present invention is fixedly connected with torsionspring that the other end is flexibly connected with opening handle and realizes the opening and closing of hatch door with bracing frame by utilizing same axis pivotable to be installed on stopper arms on bracing frame and opening handle and one end.In hatch door opening procedure, hatch door limits it by locating part while approaching vertical position and continues motion moving to, and by stopper arms, coordinates to come stop with the spacing bearing pin that is positioned at the slotting ear on hatch door and be positioned on bracing frame subsequently; When need are closed hatch door, as long as rotarily open handle, stopper arms synchronously rotates with handle, and stopper arms upwards lifts simultaneously, throws off with slotting ear, now rotates hatch door, can realize and closing.
According to an aspect of the present invention, limiting mechanism for airplane cabin doors of the present invention, it comprises the bracing frame being fixedly mounted on hatch door doorframe, this bracing frame is provided with the rotating shaft of aircraft door so that hatch door can rotate around this rotating shaft, wherein, this position-limit mechanism also comprises: a stopper arms, and its bottom is installed on bracing frame pivotly, and another free end forms hook portion; One opening handle, its bottom is installed on bracing frame pivotly, and another free end forms grip part, and described opening handle and described stopper arms are installed around the two ends of same pivot pivotable; One torsionspring, it is set on described pivot, and its one end is fixedly connected with bracing frame, and the other end is flexibly connected with opening handle; One locating part, it is positioned on bracing frame, for limit being moved further of hatch door when hatch door moves upward to precalculated position; One inserts ear, and it is positioned on hatch door, and after hatch door moves up limited stop, this slotting ear engages with the hook portion of stopper arms; One anchor, it is fixed on bracing frame, for support stopper arms from downside when stopper arms combines with slotting ear.
Further, under hatch door open mode, the hook portion of described stopper arms equals to insert the distance of ear to hatch door rotating shaft to the distance of hatch door rotating shaft.
Described torsionspring one end hook is connected with the activity of opening handle formation, other end hook forms fixing being connected with bracing frame, and the side near torsionspring arranges the axis pin of the spring that has respectively protrusion on opening handle and bracing frame, described hook is articulated on axis pin of the spring.
Described locating part is preferably stop screw.
Support frame as described above has the vertical web that two parallel interval are opened, and described pivot is installed across these two vertical web.
Locking mechanism of the present invention is owing to being a set of position-limit mechanism of root rotating shaft place design and installation in hatch door hinge arms, so can be reserved the less aircraft in space applies, utilize the rebound effect of torsionspring, stop and the locking of hatch door can be completed in same operating process, by stopper arms with on hatch door, insert ear coordinate and stopper arms and spacing bearing pin coordinate guarantee the automatic spacing that hatch door is opened and fix, collision injury equipment frame can be avoided, the hatch door obscission that do not meet accident can be guaranteed again.
Accompanying drawing explanation
Fig. 1 is the stereogram of hatch door position-limit mechanism according to the present invention in hatch door buttoned-up status;
Fig. 2 is hatch door position-limit mechanism according to the present invention is opened rear state completely stereogram in hatch door;
Fig. 3 is the view of another angle of the hatch door position-limit mechanism in Fig. 2;
Fig. 4 inserts ear to move into and the progress figure of stopper arms engagement state on hatch door.
Wherein, the label declaration in figure is as follows:
1-stopper arms; 101-hook portion
2-opening handle; 201-grip part; 202-axis pin of the spring
3-torsionspring; 301-hook
4-locating part
5-inserts ear
6-hatch door; 601-hatch door hinge arms
7-bracing frame; 701,702-vertical web
The spacing bearing pin of 8-
The rotating shaft of 9-hatch door
10-pivot
The dividing plate of 11-hatch door doorframe
The specific embodiment
Fig. 1-4 show a preferred embodiment of limiting mechanism for airplane cabin doors of the present invention.
First, as shown in Figure 1-2, limiting mechanism for airplane cabin doors of the present invention comprises stopper arms 1, opening handle 2, torsionspring 3, locating part 4, insert ear 5, bracing frame 7, anchor 8 etc., wherein stopper arms 1 and opening handle 2 are pivotally mounted on respectively the vertical web 71 that two parallel interval of bracing frame 7 are opened, on 72, can be around being crossed on two vertical web 71, pivot 10 on 72 carries out pivotable, torsionspring 3 is sleeved on pivot 10 and between stopper arms 1 and opening handle 2, its one end is fixedly attached on bracing frame 7, the other end hangs on the bearing pin 202 protruding opening handle 2 inner sides by the hook 301 forming.
From Fig. 1-2, can find out, a whole set of position-limit mechanism is positioned at hatch door rotating shaft 9 places near hinge arms 601 roots of hatch door 6, wherein, bracing frame 7 is fixedly mounted on the dividing plate 11 of doorframe of hatch door 6, hatch door rotating shaft 9 is fixed on this bracing frame 7, thereby hatch door 6 can rotate around this rotating shaft 9, till moving to subvertical unlatching from the fastening position of level, or from subvertical enable possition, be turned back to the fastening position of level.
It should be noted that, at hatch door 6, be moved upward in the process of open position, hatch door not unrestrictedly moves upward, but when approaching upright position by being positioned at the locating part 4 of hatch door one side on bracing frame 7, can be for example that the continuation that stop screw stops hatch door 6 is moved.Support from downside to stopper arms 1 of the combination of the slotting ear 5 in the hook portion 101 that subsequently, hatch door 6 relies on stopper arms 1 and hatch door hinge arms 601 and anchor 8 (for example spacing bearing pin) and be still in the open mode that approaches upright position.
Refer again to Fig. 1-2, because pivot 10 is through the web 71,72 of bracing frame 7, two ends are affixed with stopper arms 1 and handle 2 respectively, can stopper arms 1 and the synchronous rotation of handle 2; In addition, owing to being wound around torsionspring 3 on pivot 10, one end hook 301 and the axis pin of the spring 202 on handle 2 of spring overlap, other end hook (not shown) is overlapped in the axis pin of the spring (not shown) of bracing frame 7, while upwards stirring stopper arms 1, and then synchronous rotation of the opening handle 2 of pivot 10 other ends; Axis pin of the spring 202 on handle 2 pulls torsionspring 3, camber of spring.If now unclamp stopper arms 1, under the restoring force effect of spring 3, stopper arms 1 can downward resilience.
Because spacing bearing pin 8 is fixed on bracing frame 7 through bracing frame 7, and when being positioned at stopper arms 1 and clockwise rotating on the downside near hatch door 6, stopper arms 1 is stopped by this bearing pin 8, and rests on the position shown in Fig. 1 in springback process.
The operating principle of hatch door position-limit mechanism in opening and closing process is once described below with reference to accompanying drawings.
When the electronics bay of aircraft need to overhaul, operator upwards promotes hatch door 6 by horizontal level with hand.In hatch door opening procedure, hatch door 6 and hatch door hinge arms 601 upwards promote around hatch door rotating shaft 9.Be fixed in cylindrical slotting ear 5 in hinge arms 6 along with being synchronized with the movement.The distance of inserting between ear 5 and hatch door rotating shaft 9 is equal to the distance of the free-ended hook portion 101 of stopper arms 1 to hatch door rotating shaft 9.When hatch door 6 rotated after certain angle, first the slotting ear 5 in hinge arms 601 contacts with the end of the hook portion 101 of stopper arms 1, and stopper arms is flicked; Be rotated further hatch door, insert ear 5 stopper arms 1 is lifted, turn over smaller angle, stopper arms resilience under the restoring force of torsionspring, and ride on slotting ear 5.Be rotated further hatch door, until hinge arms 6 contacts with locating part 4, hatch door can not continue upwards to rotate.In this process, under the effect of torsion spring, the downside of stopper arms 1 remains and contacts with slotting ear 5.
Fig. 4 shows the movement locus of cylindrical slotting ear 5 relative stopper arms hook portions 101.The lower side contacts of cylindrical slotting ear 5 and stopper arms hook portion 101 after stopper arms 1 resilience, after this inserts ear 5 along 101 times lateral movements of stopper arms hook portion until end; Finally by the end inner side restriction of stopper arms hook portion 101, insert ear 5 and continue motion.
In hatch door opening procedure, after the downside of stopper arms 1 and slotting ear 5 keep in touch, continue upwards to rotate hatch door, thereby can bumping against locating part 4 subsequently, hatch door 6 stop door further to be opened.And insert after 101 times side contacts of hook portion of ear 5 and stopper arms 1, can be along the curved surface of stopper arms downside towards stopper arms central motion one segment distance.At this moment, operator rotates hatch door less angle again, for example can be 2 ° of-5 ° of left and right, can allow like this hook portion 101 of stopper arms hook completely and insert ear 5, the center of gravity that also can avoid hatch door 6 is simultaneously on peak and cause hatch door unstability on the position of opening completely.
When rotating after the angle that hatch door 6 is less, limited bearing pin 8 restrictions of stopper arms 1 continue to rotate.The hook portion 101 that slotting ear 5 is stopped arm 1 immediately fastens completely, and is limited to continue to rotate.Whole hatch door is fixed on this position, as shown in Figure 2.Hatch door opening procedure finishes.
Because slotting ear 5 is stopped arm 1, fasten, whole hatch door 6 and hatch door hinge arms 601 cannot rotate, and hatch door is opened this state of rear maintenance completely until hatch door need to be closed.
Below in conjunction with Fig. 2, the process that hatch door is closed is described.When closing hatch door, operator buttresses hatch door door body on the other hand, upwards lifts hatch door to small angle, and the hook portion 101 of stopper arms 1 is thrown off with slotting ear 5; The grip part 201 that another holds opening handle 2, rotates counterclockwise handle 2, and stopper arms 1 is lifted simultaneously, lifts certain angle, until insert ear 5, from the hook portion 101 of stopper arms 1, exposes completely; When slotting ear 5 exposes after the hook portion 101 of stopper arms 1 completely, rotate hatch door 6, release handle 2 after a while, stopper arms 1 recoils to the initial position shown in Fig. 1 under the effect of torsionspring 3; At this moment, rotate hatch door to complete fastening position, close hatch door.
Claims (6)
1. a limiting mechanism for airplane cabin doors, it comprises the bracing frame (7) being fixedly mounted on hatch door doorframe, this bracing frame (7) is provided with the rotating shaft (9) of aircraft door so that hatch door can rotate around this rotating shaft, it is characterized in that, this position-limit mechanism also comprises:
One stopper arms (1), it is upper that its bottom is installed on bracing frame (7) pivotly, and another free end forms hook portion (101);
One opening handle (2), its bottom is installed on bracing frame (7) pivotly, another free end forms grip part (201), and described opening handle and described stopper arms are installed around the two ends of same pivot (10) pivotable;
One torsionspring (3), it is upper that it is set in described pivot (10), and its one end is fixedly connected with bracing frame (7), and the other end is flexibly connected with opening handle (2);
One locating part (4), it is upper that it is positioned at bracing frame (7), for limit being moved further of hatch door when hatch door moves upward to precalculated position;
One inserts ear (5), and it is positioned on hatch door, and after hatch door moves up limited (4) stop, this slotting ear (5) engages with the hook portion (101) of stopper arms (1);
One anchor (8), it is upper that it is fixed on bracing frame (7), for support stopper arms (1) from downside when stopper arms (1) combines with slotting ear (5).
2. limiting mechanism for airplane cabin doors as claimed in claim 1, it is characterized in that, under hatch door open mode, the hook portion (101) of described stopper arms (1) equals to insert the distance of ear (5) to hatch door rotating shaft (9) to the distance of hatch door rotating shaft (9).
3. limiting mechanism for airplane cabin doors as claimed in claim 1, it is characterized in that, described torsionspring (3) one end hook (301) is connected with opening handle (2) formation activity, and other end hook forms fixing being connected with bracing frame (7).
4. limiting mechanism for airplane cabin doors as claimed in claim 3, it is characterized in that, the bearing pin that is respectively arranged with protrusion in a side of described opening handle (2) and the upper close torsionspring (3) of bracing frame (7), described hook is overlapped on described bearing pin.
5. limiting mechanism for airplane cabin doors as claimed in claim 1, is characterized in that, described locating part (4) is stop screw.
6. the limiting mechanism for airplane cabin doors as described in claim 1-5 any one, it is characterized in that, support frame as described above (7) has the vertical web (701 that two parallel interval are opened, 702), described pivot (10) is installed across these two vertical web (701,702).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010168411.3A CN102235125B (en) | 2010-05-06 | 2010-05-06 | Limiting mechanism for airplane cabin doors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010168411.3A CN102235125B (en) | 2010-05-06 | 2010-05-06 | Limiting mechanism for airplane cabin doors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102235125A CN102235125A (en) | 2011-11-09 |
| CN102235125B true CN102235125B (en) | 2014-04-16 |
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ID=44886191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010168411.3A Active CN102235125B (en) | 2010-05-06 | 2010-05-06 | Limiting mechanism for airplane cabin doors |
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| Country | Link |
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| CN (1) | CN102235125B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2918310C (en) * | 2013-07-24 | 2018-04-24 | Mra Systems, Inc. | Engine door and latch assembly |
| CN106639701A (en) * | 2016-12-14 | 2017-05-10 | 中航通飞研究院有限公司 | Cabin door limiting and locking mechanism |
| CN107271160A (en) * | 2017-06-02 | 2017-10-20 | 中国商用飞机有限责任公司 | A kind of test method for verifying aircraft door durability switching function |
| CN107271161A (en) * | 2017-06-02 | 2017-10-20 | 中国商用飞机有限责任公司 | A kind of aircraft door durability test device |
| CN107605285A (en) * | 2017-11-09 | 2018-01-19 | 徐工集团工程机械股份有限公司科技分公司 | A kind of side door limiting fixing mechanism of engine shroud |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1167182A2 (en) * | 2000-06-29 | 2002-01-02 | ESW-EXTEL SYSTEMS WEDEL Gesellschaft für Ausrüstung mbH | Device for electrically operating an aircraft door |
| US7070016B1 (en) * | 2005-03-18 | 2006-07-04 | Paccar Inc | Apparatus for vehicle hood |
| CN2799782Y (en) * | 2005-05-30 | 2006-07-26 | 许振荣 | Door stopper for cash truck |
| CN201220748Y (en) * | 2008-05-28 | 2009-04-15 | 江西洪都航空工业集团有限责任公司 | Balancing device for side-turning type hatch cover opening |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2898864B1 (en) * | 2006-03-23 | 2008-06-20 | Latecoere Sa | LOCKING SYSTEM FOR AN AIRCRAFT DOOR, IN PARTICULAR FOR A PASSENGER AIR CARRIER |
-
2010
- 2010-05-06 CN CN201010168411.3A patent/CN102235125B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1167182A2 (en) * | 2000-06-29 | 2002-01-02 | ESW-EXTEL SYSTEMS WEDEL Gesellschaft für Ausrüstung mbH | Device for electrically operating an aircraft door |
| US7070016B1 (en) * | 2005-03-18 | 2006-07-04 | Paccar Inc | Apparatus for vehicle hood |
| CN2799782Y (en) * | 2005-05-30 | 2006-07-26 | 许振荣 | Door stopper for cash truck |
| CN201220748Y (en) * | 2008-05-28 | 2009-04-15 | 江西洪都航空工业集团有限责任公司 | Balancing device for side-turning type hatch cover opening |
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| Publication number | Publication date |
|---|---|
| CN102235125A (en) | 2011-11-09 |
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