CN111021865B - Blocking type cabin door opening position lock mechanism - Google Patents
Blocking type cabin door opening position lock mechanism Download PDFInfo
- Publication number
- CN111021865B CN111021865B CN201911248179.1A CN201911248179A CN111021865B CN 111021865 B CN111021865 B CN 111021865B CN 201911248179 A CN201911248179 A CN 201911248179A CN 111021865 B CN111021865 B CN 111021865B
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- CN
- China
- Prior art keywords
- cabin door
- door
- cover plate
- hinged
- crank
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/02—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with pneumatic piston brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
- B64C1/1407—Doors; surrounding frames
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/32—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of two or more pivoted rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Fluid-Damping Devices (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention relates to a blocking type cabin door opening position locking mechanism which is characterized in that an upper support and a lower support are fixedly connected to a cabin door structure, an upper crank is hinged to the upper support, the other end of the upper crank is hinged to a gas spring, the other end of the gas spring is hinged to the lower support, a cover plate is hinged to the lower support, one end of the torsion spring is tightly pressed on the lower support, the other end of the torsion spring is tightly pressed on the outward side of the cover plate, and the cover plate, a connecting rod, the lower crank and the cabin door structure are connected to form a four-bar mechanism. The mechanism is directly matched with an opening power source of the cabin door, the locking mode is direct and accurate, the occupied space is small, and the automatic locking of the cabin door can be realized. When the cabin door is closed, the locking position of the cabin door can be unlocked through the unlocking handle, the unlocking handle can serve as a door closing handle at the same time, and the door closing operation is simple, continuous and easy to achieve.
Description
Technical Field
The invention relates to the field of civil aircraft cabin door mechanisms, in particular to a mechanism which is applied to a cabin door of a civil aircraft and locks the cabin door at a fully opened position.
Background
Civil aircraft doors can be divided into three types, namely blocked, semi-blocked and non-blocked. The size of the blocking type cabin door is larger than the opening ruler of the fuselage, and the opening form of the cabin doors is mostly inwards turned and opened. After the cabin door is completely opened, an opening position lock mechanism needs to be designed to lock the cabin door at the completely opened position, the locking mechanism is required to ensure that the position of the cabin door is fixed, the situations of flutter and the like do not occur, and certain load can be borne. When the cabin door is closed, the locking mechanism at the opening position needs to be unlocked first, and then the cabin door is driven to turn over and close. The unlocking form is simple and clear and is easy to operate.
The current jam formula hatch door adopts independent open position lock form more, and some hatch doors need manual locking even, and the mechanism form is more complicated, and the switch door operating procedure is more, and occupies great inner space.
Disclosure of Invention
The invention aims to provide a blocking type cabin door opening position lock mechanism which is directly matched with an opening power source of a cabin door, has a direct and accurate locking mode and small occupied space and can realize automatic locking of the cabin door. When the cabin door is closed, the locking position of the cabin door can be unlocked through the unlocking handle, the unlocking handle can serve as a door closing handle at the same time, and the door closing operation is simple, continuous and easy to achieve.
In order to solve the above problems, the specific technical scheme of the invention is as follows:
the utility model provides a position latch mechanism is opened to jam formula hatch door, at the structural fixedly connected with upper bracket and bottom suspension of hatch door, the upper bracket articulates there is the crank, the upper crank other end articulates there is the air spring, the air spring other end is articulated with the bottom suspension, the apron is connected with the bottom suspension is articulated, torsional spring one end compresses tightly on the bottom suspension, the other end compresses tightly in apron outside one side, apron, connecting rod, lower crank and hatch door structural connection constitute four-bar linkage.
The lower crank is hinged with the connecting rod, the lower crank is fixedly connected with the operating handle through a transmission shaft, and the transmission shaft is hinged with the cabin door structure.
The gas spring comprises an actuating cylinder and a driving rod, the part, close to the actuating cylinder, of the gas spring is hinged to the upper crank, the driving rod is located in the cavity of the actuating cylinder and moves as a piston, the driving rod is coaxially connected with the cover plate through a connecting pin, and the connecting pin is located at the outer side end of the cover plate and connected with the torsion spring.
In the process of opening the cabin door, the cover plate is always pressed on the surface of the actuating cylinder under the driving of the torsion spring. When the cabin door reaches the fully opened position, the cover plate is driven by the torsion spring to rotate until the cover plate is contacted with the driving rod.
When the cabin door is closed, the lower crank is driven to rotate through the operating handle, and the crank drives the cover plate to rotate through the connecting rod to realize unlocking.
The operating handle rotates and then contacts with the cabin door structure, at the moment, the operating handle serves as a door closing handle, and the operating handle can be moved to drive the cabin door to realize closing movement.
The invention has the following advantages:
1. the operability is good. When the door is opened, the mechanism can realize automatic locking in the opening process of the cabin door, the motion of the cabin door is continuous, and the opening process is simple. When the door is closed, the unlocking handle of the mechanism can be used as a door closing handle besides releasing the locking position of the cabin door, and the cabin door is pulled to be closed.
2. The mechanism form is simple. The mechanism is directly matched with the opening driving air spring, and a locking mechanism is not required to be independently designed. The number of parts is small, the reliability is high, the occupied space is small, and the weight is light.
3. The application range is wide. The mechanism of the invention has simple transmission relationship, adopts common and mature typical mechanisms, and can be widely applied to various types of blocking doors.
Drawings
FIG. 1 is an isometric view of the mechanism of the present invention.
FIG. 2 is a schematic view of the mechanism of the present invention in the closed position of the door.
Figure 3 is a schematic view of the mechanism of the present invention in the fully open position of the door.
FIG. 4 is a schematic view of the gas spring mechanism of the present invention in a fully open position of the door.
Detailed Description
As shown in fig. 1 to 4, a jam type cabin door opening position lock mechanism is characterized in that an upper support 9 and a lower support 11 are fixedly connected to a cabin door structure 1, an upper crank 2 is hinged to the upper support 9, an air spring 3 is hinged to the other end of the upper crank 2, the other end of the air spring 3 is hinged to the lower support 11, an cover plate 4 is hinged to the lower support 11, one end of a torsion spring 10 is tightly pressed on the lower support 11, the other end of the torsion spring is tightly pressed on one side, facing outwards, of the cover plate 4, a connecting rod 5, a lower crank 7 and the cabin door structure 1 are connected to.
The lower crank 7 is hinged with the connecting rod 5, the lower crank 7 is fixedly connected with the operating handle 8 through the transmission shaft 6, and the transmission shaft 6 is hinged with the cabin door structure 1.
The gas spring 3 comprises an actuating cylinder 12 and a driving rod 13, one part close to the actuating cylinder 12 is hinged with the upper crank 2, the driving rod 13 is positioned in a cylinder cavity of the actuating cylinder 12 and performs piston movement, the driving rod 13 is coaxially connected with the cover plate 4 through a connecting pin 14, and the connecting pin 14 is positioned at the outer side end of the cover plate 4 and is connected with the torsion spring 10.
In the process of opening the cabin door, the cover plate 4 is always pressed on the surface of the actuating cylinder 12 under the driving of the torsion spring 10. When the door reaches the fully open position, the cover plate 4 is rotated by the torsion spring 10 until it comes into contact with the driving rod 13.
When the cabin door is closed, the operating handle 8 drives the lower crank 6 to rotate, and the crank 6 drives the cover plate 4 to rotate through the connecting rod 5 to realize unlocking.
The operating handle 8 rotates and then contacts with the cabin door structure 1, at the moment, the operating handle 8 serves as a door closing handle, and the operating handle 8 can be moved to drive the cabin door to realize closing movement.
The working process is as follows: in the process of opening the cabin door, the cabin door turns towards the inner side of the cabin body, and the gas spring 3 is driven by the opening mechanism to continuously extend. The cover plate 4 is pressed on the surface of the actuating cylinder 12 all the time under the driving of the torsion spring 10. When the door reaches the fully open position, the cover plate 4 is rotated by the torsion spring 10 until it comes into contact with the driving rod 13. The cover plate 4 blocks the motion path of the gas spring 3, the gas spring 3 cannot be shortened, and the cabin door cannot return to the closed position, so that the locking of the opening position of the cabin door is realized.
When the cabin door is closed, the lower crank 6 is driven to rotate through the operating handle 8, and the lower crank 6 drives the cover plate 4 to rotate through the connecting rod 5 to realize unlocking. The operating handle 8 rotates for a certain angle and then contacts with the cabin door structure 1, at the moment, the operating handle 8 is pulled outwards, and the operating handle 8 drives the cabin door to realize the closing movement of the cabin door. After the hatch door is closed for a certain angle, the operating handle 8 is loosened, and the cover plate 4 can be pressed on the surface of the actuating cylinder 12 again under the driving of the torsion spring 10.
Claims (4)
1. The utility model provides a jam formula hatch door opening position latch mechanism which characterized in that: an upper support (9) and a lower support (11) are fixedly connected to the cabin door structure (1), an upper crank (2) is hinged to the upper support (9), an air spring (3) is hinged to the other end of the upper crank (2), the other end of the air spring (3) is hinged to the lower support (11), a cover plate (4) is hinged to the lower support (11), one end of a torsion spring (10) is tightly pressed on the lower support (11), the other end of the torsion spring is tightly pressed on the outward side of the cover plate (4), and the cover plate (4), a connecting rod (5), the lower crank (7) and the cabin door structure (1) are connected to form a four-bar mechanism;
the gas spring (3) comprises an actuating cylinder (12) and a driving rod (13), one part close to the actuating cylinder (12) is hinged with the upper crank (2), the driving rod (13) is positioned in a cylinder cavity of the actuating cylinder (12) and does piston movement, the driving rod (13) is coaxially connected with the cover plate (4) through a connecting pin (14), and the connecting pin (14) is positioned at the outer side end of the cover plate (4) and is connected with the torsion spring (10);
in the process of opening the cabin door, the cover plate (4) is always pressed on the surface of the actuating cylinder (12) under the driving of the torsion spring (10), and after the cabin door reaches the fully opened position, the cover plate (4) rotates under the driving of the torsion spring (10) until contacting with the driving rod (13).
2. The jam door open position lock mechanism of claim 1, wherein: the lower crank (7) is hinged with the connecting rod (5), the lower crank (7) is fixedly connected with the operating handle (8) through the transmission shaft (6), and the transmission shaft (6) is hinged with the cabin door structure (1).
3. Use of a door lock mechanism according to claim 1 for an open position of a door, wherein: when the cabin door is closed, the lower crank (7) is driven to rotate through the operating handle (8), and the lower crank (7) drives the cover plate (4) to rotate through the connecting rod (5) to realize unlocking.
4. Use of a door lock mechanism according to claim 3 for an open position of a door, wherein: operating handle (8) rotate the back and contact with hatch door structure (1), operating handle (8) act as the handle of closing the door this moment, can move operating handle and drive the hatch door and realize closing the motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248179.1A CN111021865B (en) | 2019-12-09 | 2019-12-09 | Blocking type cabin door opening position lock mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248179.1A CN111021865B (en) | 2019-12-09 | 2019-12-09 | Blocking type cabin door opening position lock mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111021865A CN111021865A (en) | 2020-04-17 |
| CN111021865B true CN111021865B (en) | 2021-07-09 |
Family
ID=70204992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911248179.1A Active CN111021865B (en) | 2019-12-09 | 2019-12-09 | Blocking type cabin door opening position lock mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111021865B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572757A (en) * | 2020-12-04 | 2021-03-30 | 中国航空工业集团公司成都飞机设计研究所 | Electrically driven active cabin door upper lock |
| CN112878846A (en) * | 2021-01-15 | 2021-06-01 | 湖北三江航天万峰科技发展有限公司 | Heat preservation cabin door opening and closing device and method for opening and closing cabin door |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031863A (en) * | 1989-12-21 | 1991-07-16 | The Boeing Company | Upward/outward opening, plug-type overwing emergency exit hatch |
| JPH0960411A (en) * | 1995-08-22 | 1997-03-04 | Nippon Fruehauf Co Ltd | Opening and closing device for spring-up type door for container |
| DE10223902B4 (en) * | 2002-05-29 | 2009-04-30 | Eurocopter Deutschland Gmbh | Locking device of an outer door of an aircraft for locking a door kinematics |
| EP2422032B1 (en) * | 2009-04-20 | 2014-09-17 | International Truck Intellectual Property Company | Pneumatic door assist system with lock |
| CN105667757B (en) * | 2016-04-05 | 2017-11-17 | 中航沈飞民用飞机有限责任公司 | A kind of blocking type cargo door of civil aircraft hyperbolic section half |
| CN109252767B (en) * | 2018-11-23 | 2020-02-11 | 苏世博（南京）减振***有限公司 | Upturning supporting mechanism |
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2019
- 2019-12-09 CN CN201911248179.1A patent/CN111021865B/en active Active
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| Publication number | Publication date |
|---|---|
| CN111021865A (en) | 2020-04-17 |
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