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CN115384755B - Cabin door of pressurized cabin - Google Patents

Cabin door of pressurized cabin Download PDF

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Publication number
CN115384755B
CN115384755B CN202211076940.XA CN202211076940A CN115384755B CN 115384755 B CN115384755 B CN 115384755B CN 202211076940 A CN202211076940 A CN 202211076940A CN 115384755 B CN115384755 B CN 115384755B
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CN
China
Prior art keywords
rocker arm
lock
shaft
sharing
time
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.)
Active
Application number
CN202211076940.XA
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Chinese (zh)
Other versions
CN115384755A (en
Inventor
谷刚
张�浩
刘木君
杨鉴威
李力
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
South China Aircraft Industry Co Ltd of China Aviation Industry General Aircraft Co Ltd
Original Assignee
South China Aircraft Industry Co Ltd of China Aviation Industry General Aircraft Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by South China Aircraft Industry Co Ltd of China Aviation Industry General Aircraft Co Ltd filed Critical South China Aircraft Industry Co Ltd of China Aviation Industry General Aircraft Co Ltd
Priority to CN202211076940.XA priority Critical patent/CN115384755B/en
Publication of CN115384755A publication Critical patent/CN115384755A/en
Application granted granted Critical
Publication of CN115384755B publication Critical patent/CN115384755B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C1/00Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/14Windows; 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
    • B64C1/1407Doors; surrounding frames
    • B64C1/1423Passenger doors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C1/00Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/14Windows; 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C1/00Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/14Windows; 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
    • B64C1/1407Doors; surrounding frames
    • B64C1/1415Cargo doors, e.g. incorporating ramps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The application provides a cabin door of a pressurized cabin, which belongs to the technical field of aviation, wherein when a latch is unlocked, a handle drives a main shaft to rotate, the main shaft drives a pressure release valve to be opened, meanwhile, a main shaft drives a lock to be unlocked, the main shaft continues to rotate until a time-sharing driving rocker arm contacts with an opening type guide groove of the time-sharing rocker arm, and then the time-sharing rocker arm starts to drive a bolt to latch and unlatch until the latch is completely unlatched; on the contrary, when the lock is locked, the handle drives the main shaft to rotate, the main shaft drives the time-sharing rocker arm to rotate, the time-sharing rocker arm drives the bolt to lock, the unlocking is completed until the time-sharing driving rocker arm is separated from the opening type guide groove of the time-sharing rocker arm, and then the main shaft continues to drive the pressure release valve to close and drive the lock to lock until the pressure release valve is completely closed and locked; the mechanism principle is simple, the weight is light, the reliability of the cabin door is improved, and meanwhile, the application range of the mechanism is enlarged through reasonable arrangement of the mechanism principle and the adoption of the latch bolt.

Description

Cabin door of pressurized cabin
Technical Field
The application belongs to the technical field of aviation, and particularly relates to a cabin door of a pressurized cabin.
Background
The aircraft fuselage is generally provided with a cockpit, and the passage between the cockpit and the non-cockpit and outside the aircraft is generally provided with a cockpit door. The cabin door of the pressurized cabin mainly bears the pressure difference load at the airtight interface in the through cabin of the aircraft, and has enough rigidity and fatigue resistance. Meanwhile, as a personnel or goods passage, the design of the cabin door must meet the related airworthiness clauses, and the safety, reliability and economy of the cabin door are ensured, wherein the mechanism is one of key contents in the cabin door design. In order to meet the use requirement, the pressure release valve is arranged on the pressure cabin door,
In the related art, the cabin door of the pressurized cabin is mainly in the form of a boarding door which is opened in a mode of lifting and then outwards horizontally opening, and is provided with a pressure release valve, so that the cabin door has larger weight and larger required space.
Disclosure of Invention
In order to solve the problems of large weight and large space required by a cabin door in the related art, the invention provides a cabin door, which comprises the following technical scheme:
a plenum door comprising: the device comprises a handle, a handle shaft, a first connecting rod, a main shaft, a second connecting rod, a pressure release valve shaft, a pressure release valve, a time-sharing shaft, a time-sharing rocker arm, a lock rocker arm, a third connecting rod, a bolt latch, a lock shaft, a first rocker arm, a second rocker arm, a third rocker arm, a time-sharing driving rocker arm, a fourth connecting rod and a lock;
The main shaft is assembled in the cabin door, and can rotate around the axis of the main shaft, and a second rocker arm, a third rocker arm, a time-sharing driving rocker arm and a fourth rocker arm are arranged on the main shaft;
The handle is fixed on the handle shaft, the handle is perpendicular to the handle shaft, a first rocker arm is arranged on the handle shaft, the first rocker arm is connected with the second rocker arm through a first connecting rod, and the main shaft can be driven to rotate by rotating the handle through the first connecting rod;
the time sharing shaft is assembled in the cabin door, the time sharing shaft is parallel to the main shaft, the time sharing shaft can rotate around the axis of the time sharing shaft, the time sharing rocker arm and the lock rocker arm are arranged on the time sharing shaft, the lock rocker arm is provided with a limiting arc concave surface, and the time sharing rocker arm is driven by contacting with an opening type guide groove of the time sharing rocker arm in the rotation process of the time sharing driving rocker arm;
the lock shaft is assembled in the cabin door, the lock shaft is parallel to the main shaft, the lock shaft can rotate around the axis of the lock shaft, the lock shaft is provided with a lock, the lock is provided with an arc limiting convex surface, the arc limiting convex surface of the lock is in small clearance fit with the limiting arc concave surface of the lock rocker arm, and the function of the lock is realized by whether the arc surfaces are overlapped;
The fourth rocker arm is connected with the lock through a fourth connecting rod, and the lock shaft is driven through the fourth connecting rod in the rotation process of the fourth rocker arm;
The pressure release valve shaft is assembled in the cabin door, the pressure release valve shaft is parallel to the main shaft, the pressure release valve shaft can rotate around the axis of the pressure release valve shaft, the pressure release valve is fixed on the pressure release valve shaft, the third rocker arm is connected with the pressure release valve through a second connecting rod, and the pressure release valve is driven to be opened and closed through the second connecting rod in the rotation process of the third rocker arm;
the time-sharing rocker arm is connected with the bolt latch through a third connecting rod, the bolt latch can only slide in the axial direction of the bolt latch, and the bolt latch is perpendicular to the main shaft.
The main shaft is provided with a main shaft limiting rocker arm for adjusting the rotating angle range of the main shaft.
The time sharing shaft is provided with a time sharing shaft limiting rocker arm for adjusting the rotation angle range of the time sharing shaft.
The spindle is provided with a rocker arm, a spindle booster spring assembly is arranged between the rocker arm and the cabin door, and joint bearings are arranged at joints at two ends of the spindle booster spring assembly.
The lock booster spring assembly is arranged between the rocker arm and the cabin door, and joint bearings are arranged at joints at two ends of the lock booster spring assembly.
The time-sharing driving rocker arm is further provided with a closing limit boss for preventing the bolt from unlocking when the cabin door is closed.
The first rocker arm is provided with a flight lock limiting boss, and the flight lock limiting boss is matched with the flight lock to limit the handle to rotate.
The lock shaft is provided with a rocker arm, and the rocker arm is provided with any one of a mechanical display surface and a target.
When the distance between the lock shaft and the pressure release valve shaft is far, the fourth connecting rod is canceled, the lock is additionally provided with an open guide groove, the initial position of the tail end of the fourth rocker arm is positioned in the open guide groove, the lock shaft is additionally provided with a fifth rocker arm, the second connecting rod is connected with the third rocker arm and is changed into be connected with the fifth rocker arm, and the lock shaft can drive the pressure release valve to be opened and closed through the second connecting rod when rotating;
when the distance between the lock shaft and the pressure release valve shaft is relatively short, the fourth connecting rod and the second connecting rod are canceled, the lock is provided with an open guide groove, the initial position of the tail end of the fourth rocker arm is positioned in the open guide groove, the lock shaft is additionally provided with a first gear, the pressure release valve is additionally provided with a second gear, and the lock shaft drives the pressure release valve to open and close through gear transmission between the first gear and the second gear.
When the unlocking is performed, the handle drives the main shaft to rotate, the main shaft drives the pressure release valve to be opened, the main shaft drives the lock to be unlocked, the main shaft continues to rotate until the time-sharing driving rocker arm is contacted with the opening type guide groove of the time-sharing rocker arm, and then the time-sharing rocker arm starts to drive the bolt to unlock until the unlocking is completed;
When the lock is locked, the handle drives the main shaft to rotate, the main shaft drives the time-sharing rocker arm to rotate, the time-sharing rocker arm drives the bolt to lock until the time-sharing driving rocker arm is separated from the opening type guide groove of the time-sharing rocker arm, the unlocking is completed, and then the main shaft continues to drive the pressure release valve to close and drive the lock to lock until the pressure release valve is completely closed and locked.
The invention provides a cabin door of a pressurized cabin, which is a bolt type cabin door with a pressure release valve, and has the advantages of simple structure, light weight, small required space, convenient use and high reliability.
Drawings
Fig. 1 is a schematic view of a mechanism of a cabin door of a pressurized cabin according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a driving principle of a lock shaft and a pressure release valve shaft according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another lock shaft and pressure relief valve shaft drive principle provided by an embodiment of the present invention;
FIG. 4 is a schematic view of a mechanism closed position of a pod door provided by an embodiment of the present invention;
FIG. 5 is a schematic view of a mechanism open position of a pod door provided by an embodiment of the present invention;
FIG. 6 is a partial schematic view of a time sharing mechanism and a lock mechanism provided by an embodiment of the present invention;
Fig. 7 is a schematic diagram of a principle of a time sharing rocker arm guide groove according to an embodiment of the present invention.
Detailed Description
The application is described in further detail below with reference to specific embodiments and figures.
The cabin door of the invention is a bolt type cabin door with a pressure release valve, which is convenient to use, light in weight and small in required space.
Referring to fig. 1 to 7, the present invention provides a pressurized cabin door comprising: handle 1, handle shaft 2, first link 3, spindle 4, second link 5, pressure release valve shaft 6, pressure release valve 7, time dividing shaft 8, time sharing rocker arm 9, lock rocker arm 10, third link 11, latch bolt 12, lock shaft 15, first rocker arm 16, second rocker arm 17, third rocker arm 18, time sharing drive rocker arm 20, fourth rocker arm 22, fourth link 23, and lock 24;
As shown in fig. 1, the spindle 4 is mounted in the hatch, the spindle 4 being rotatable about a spindle axis, and the spindle 4 being provided with a second rocker arm 17, a third rocker arm 18, a time-sharing drive rocker arm 20 and a fourth rocker arm 22.
The spindle 4 is further provided with a spindle limiting rocker arm 26 for adjusting the rotation angle range of the spindle 4. The adjustment process may refer to the related art, and will not be described herein.
The main shaft 4 is also provided with a rocker arm 19, and a main shaft booster spring component 14 is arranged between the rocker arm 19 and the cabin door and used for providing booster for opening or closing the handle so as to reduce the force of the handle; and maintains the mechanism in an open or closed state, and joint bearings are arranged at joints at two ends of the spindle booster spring assembly 14, so as to allow angular deviation during assembly.
The end of the time-sharing driving rocker arm 20 is provided with a roller 30, so that friction force is reduced. The time sharing drive rocker arm 20 is further provided with a closing limit boss 31 for preventing the latch bolt 12 from unlatching when the hatch door is closed. As shown in fig. 6.
The handle 1 is fixed on the handle shaft 2, the handle 1 is perpendicular to the handle shaft 2, a first rocker arm 16 is arranged on the handle shaft 2, the first rocker arm 16 is connected with a second rocker arm 17 through a first connecting rod 3, and the main shaft 4 can be driven to rotate by rotating the handle 1 through the first connecting rod 3.
The handle 1 can be directly fixed on the main shaft 4, and the main shaft 4 can be directly driven to rotate by rotating the handle 1.
The first rocker arm 16 is provided with a flight lock limit boss 34, the flight lock limit boss 34 cooperating with a flight lock 35 to limit rotation of the handle 1, as shown in fig. 4 and 5.
The time dividing shaft 8 is assembled in the cabin door, and the time dividing shaft 8 is parallel to the main shaft 4. The time sharing shaft 8 can rotate around the time sharing shaft axis, the time sharing rocker arm 9 and the lock rocker arm 10 are arranged on the time sharing shaft 8, the lock rocker arm 10 is provided with a limiting arc concave surface, and the time sharing rocker arm 9 is driven by contacting with an opening type guide groove 38 of the time sharing rocker arm 9 in the rotation process of the time sharing driving rocker arm 20. The guide groove form of the open guide groove 38 may be designed as an inner guide groove 39, as shown in fig. 7.
The time sharing shaft 8 is provided with a time sharing shaft limiting rocker arm 25 for adjusting the rotation angle range of the time sharing shaft 8. The adjustment process may refer to the related art.
The time-sharing shaft 8 is provided with a rocker arm 21, and a lock assisting spring component 13 is arranged between the rocker arm 21 and the cabin door and used for assisting the opening or closing of the handle so as to reduce the force of the handle; and maintains the local lock mechanism open or closed. The joint of the two ends of the lock assisting spring assembly 13 is provided with a joint bearing, which allows angular deviation during assembly.
The lock shaft 15 is fitted in the hatch, the lock shaft 15 being parallel to the main shaft 4. The lock shaft 15 can rotate around the lock shaft axis, the lock shaft 15 is provided with a lock 24, the lock 24 is provided with an arc limiting convex surface, the arc limiting convex surface of the lock 24 is in small clearance fit with the limiting arc concave surface of the lock rocker arm 10, and the function of the lock is realized by whether the arc surfaces are overlapped.
The lock shaft 15 is provided with a rocker arm 32, and the rocker arm 32 can be provided with a mechanical display surface 36 and a target 33. By means of both the mechanical display 36 and the target 33, it is possible to determine whether the position is in place.
The fourth rocker arm 22 is connected with the lock 24 through a fourth connecting rod 23, and the fourth rocker arm 22 drives the lock shaft 15 through the fourth connecting rod 23 in the rotation process. The rocker arm 22 is provided at its distal end with a roller 30.
The pressure release valve shaft 6 is assembled in the cabin door, and the pressure release valve shaft 6 is parallel to the main shaft 4. The pressure release valve shaft 6 can rotate around the axis of the pressure release valve shaft, the pressure release valve 7 is fixed on the pressure release valve shaft 6, the third rocker arm 18 is connected with the pressure release valve 7 through the second connecting rod 5, and the pressure release valve 7 can be driven to be opened and closed through the second connecting rod 5 in the rotation process of the third rocker arm 18.
A lock shaft limit rocker arm 37 may be provided on the lock shaft 15 for limiting the rotation angle range of the lock shaft 15, as shown in fig. 2.
The latch bolt 12 is perpendicular to the spindle 4. The bolt latch 12 is only slidable in the direction of the bolt latch axis. The time sharing rocker arm 9 is connected with the bolt 12 through a third connecting rod 11.
Joint bearings are arranged at joints at two ends of the first connecting rod 3, the second connecting rod 5, the third connecting rod 11 and the fourth connecting rod 23.
The handle shaft 2 may not be parallel to the spindle 4, as shown in fig. 1, the handle shaft 2 being perpendicular to the spindle 4.
Further, the spindle 4 can be provided with 1 part of latch, lock and time sharing mechanism for standby, so that the reliability of the cabin door mechanism is improved.
Referring to fig. 4 and 5, in the present invention, the main shaft 4 drives the lock shaft 15 and the pressure release valve shaft 6 in such a manner that:
When the lock shaft 15 is far away from the pressure release valve shaft 6, the fourth connecting rod 23 is omitted, meanwhile, the lock 24 is additionally provided with an open guide groove 38, the initial position of the tail end of the fourth rocker arm 22 is positioned in the open guide groove 38, meanwhile, the lock shaft 15 is additionally provided with a fifth rocker arm 27, as shown in fig. 2, the second connecting rod 5 is connected with the third rocker arm 18 and is changed into be connected with the fifth rocker arm 27, and the pressure release valve 7 can be driven to be opened and closed by the rotation of the lock shaft 15 through the second connecting rod 5;
When the lock shaft 15 is closer to the pressure release valve shaft 6, the fourth connecting rod 23 and the second connecting rod 5 are omitted, meanwhile, the lock 24 is provided with an open guide groove 38, the initial end position of the fourth rocker arm 22 is located in the open guide groove 38, meanwhile, the lock shaft 15 is additionally provided with a first gear 28, the pressure release valve 7 is additionally provided with a second gear 29, and as shown in fig. 3, the lock shaft 15 drives the pressure release valve 7 to open and close through gear transmission between the first gear 28 and the second gear 29.
In the invention, as shown in fig. 1, when the unlocking is performed, the handle 1 drives the main shaft 4 to rotate, the main shaft 4 drives the pressure release valve 7 to open, meanwhile, the main shaft 4 drives the lock 24 to unlock, the main shaft 4 continues to rotate until the time-sharing driving rocker arm 20 contacts with the opening guide groove 38 of the time-sharing rocker arm 9, and then the time-sharing rocker arm 9 starts to drive the bolt latch 12 to unlock until the unlocking is completed;
On the contrary, when the lock is locked, the handle 1 drives the main shaft 4 to rotate, the main shaft 4 drives the time sharing rocker arm 9 to rotate, the time sharing rocker arm 9 drives the bolt latch 12 to be locked until the time sharing driving rocker arm 20 is separated from the opening guide groove 38 of the time sharing rocker arm 9, the unlocking is completed, and then the main shaft 4 continues to drive the pressure release valve 7 to close and drive the lock 24 to lock until the pressure release valve 7 is completely closed and the lock 24 is locked.
The bolt latch type pressure cabin door with the pressure release valve has the advantages of simple mechanism principle and light weight, improves the reliability of the door, reduces the weight of the door and increases the application range of the mechanism through reasonable arrangement of the mechanism principle.
The foregoing has outlined rather broadly the more detailed description of the application in order that the detailed description thereof that follows may be better understood, and in order that the present application may be better understood. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.

Claims (9)

1. A plenum door, comprising: the device comprises a handle, a handle shaft, a first connecting rod, a main shaft, a second connecting rod, a pressure release valve shaft, a pressure release valve, a time-sharing shaft, a time-sharing rocker arm, a lock rocker arm, a third connecting rod, a bolt latch, a lock shaft, a first rocker arm, a second rocker arm, a third rocker arm, a time-sharing driving rocker arm, a fourth connecting rod and a lock;
The main shaft is assembled in the cabin door, and can rotate around the axis of the main shaft, and a second rocker arm, a third rocker arm, a time-sharing driving rocker arm and a fourth rocker arm are arranged on the main shaft;
The handle is fixed on the handle shaft, the handle is perpendicular to the handle shaft, a first rocker arm is arranged on the handle shaft, the first rocker arm is connected with the second rocker arm through a first connecting rod, and the main shaft can be driven to rotate by rotating the handle through the first connecting rod;
the time sharing shaft is assembled in the cabin door, the time sharing shaft is parallel to the main shaft, the time sharing shaft can rotate around the axis of the time sharing shaft, the time sharing rocker arm and the lock rocker arm are arranged on the time sharing shaft, the lock rocker arm is provided with a limiting arc concave surface, and the time sharing rocker arm is driven by contacting with an opening type guide groove of the time sharing rocker arm in the rotation process of the time sharing driving rocker arm;
the lock shaft is assembled in the cabin door, the lock shaft is parallel to the main shaft, the lock shaft can rotate around the axis of the lock shaft, the lock shaft is provided with a lock, the lock is provided with an arc limiting convex surface, the arc limiting convex surface of the lock is in small clearance fit with the limiting arc concave surface of the lock rocker arm, and the function of the lock is realized by whether the arc surfaces are overlapped;
The fourth rocker arm is connected with the lock through a fourth connecting rod, and the lock shaft is driven through the fourth connecting rod in the rotation process of the fourth rocker arm;
The pressure release valve shaft is assembled in the cabin door, the pressure release valve shaft is parallel to the main shaft, the pressure release valve shaft can rotate around the axis of the pressure release valve shaft, the pressure release valve is fixed on the pressure release valve shaft, the third rocker arm is connected with the pressure release valve through a second connecting rod, and the pressure release valve is driven to be opened and closed through the second connecting rod in the rotation process of the third rocker arm;
The time-sharing rocker arm is connected with the bolt latch through a third connecting rod, the bolt latch can only slide in the axial direction of the bolt latch, and the bolt latch is perpendicular to the main shaft;
When the unlocking is performed, the handle drives the main shaft to rotate, the main shaft drives the pressure release valve to be opened, the main shaft drives the lock to be unlocked, the main shaft continues to rotate until the time-sharing driving rocker arm is contacted with the opening type guide groove of the time-sharing rocker arm, and then the time-sharing rocker arm starts to drive the bolt to unlock until the unlocking is completed;
When the lock is locked, the handle drives the main shaft to rotate, the main shaft drives the time-sharing rocker arm to rotate, the time-sharing rocker arm drives the bolt to lock until the time-sharing driving rocker arm is separated from the opening type guide groove of the time-sharing rocker arm, the locking is completed, and then the main shaft continues to drive the pressure release valve to close and the lock to lock until the pressure release valve is completely closed and the lock is locked.
2. The pressurized cabin door according to claim 1, characterized in that,
The main shaft is provided with a main shaft limiting rocker arm for adjusting the rotating angle range of the main shaft.
3. The pressurized cabin door according to claim 1, characterized in that,
The time sharing shaft is provided with a time sharing shaft limiting rocker arm for adjusting the rotation angle range of the time sharing shaft.
4. The pressurized cabin door according to claim 1, characterized in that,
The main shaft is provided with a rocker arm, a main shaft booster spring component is arranged between the rocker arm and the cabin door, and joint bearings are arranged at joints at two ends of the main shaft booster spring component.
5. The pressurized cabin door according to claim 1, characterized in that,
The timing shaft is provided with a rocker arm, a lock booster spring assembly is arranged between the rocker arm and the cabin door, and joint bearings are arranged at joints at two ends of the lock booster spring assembly.
6. The pressurized cabin door according to claim 1, characterized in that,
The time-sharing driving rocker arm is also provided with a closing limit boss for preventing the bolt from unlocking when the cabin door is closed.
7. The pressurized cabin door according to claim 1, characterized in that,
The first rocker arm is provided with a flight lock limiting boss, and the flight lock limiting boss is matched with the flight lock to limit the handle to rotate.
8. The pressurized cabin door according to claim 1, characterized in that,
The lock shaft is provided with a rocker arm, and the rocker arm is provided with any one of a mechanical display surface and a target.
9. The pressurized cabin door according to claim 1, characterized in that,
When the distance between the lock shaft and the pressure release valve shaft is far, the fourth connecting rod is canceled, an open guide groove is additionally arranged on the lock, the initial position of the tail end of the fourth rocker arm is positioned in the open guide groove, a fifth rocker arm is additionally arranged on the lock shaft, the second connecting rod is connected with the third rocker arm and is changed into be connected with the fifth rocker arm, and the lock shaft can drive the pressure release valve to be opened and closed through the second connecting rod when rotating;
when the distance between the lock shaft and the pressure release valve shaft is relatively short, the fourth connecting rod and the second connecting rod are canceled, the lock is provided with an open guide groove, the initial position of the tail end of the fourth rocker arm is positioned in the open guide groove, the lock shaft is additionally provided with a first gear, the pressure release valve is additionally provided with a second gear, and the lock shaft drives the pressure release valve to open and close through gear transmission between the first gear and the second gear.
CN202211076940.XA 2022-09-02 2022-09-02 Cabin door of pressurized cabin Active CN115384755B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211076940.XA CN115384755B (en) 2022-09-02 2022-09-02 Cabin door of pressurized cabin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211076940.XA CN115384755B (en) 2022-09-02 2022-09-02 Cabin door of pressurized cabin

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CN115384755A CN115384755A (en) 2022-11-25
CN115384755B true CN115384755B (en) 2024-10-25

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Citations (2)

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Publication number Priority date Publication date Assignee Title
CN106677612A (en) * 2017-01-06 2017-05-17 江苏美龙振华科技有限公司 Handle internal locking mechanism
CN108583844A (en) * 2018-04-19 2018-09-28 中国商用飞机有限责任公司 Anti-misoperation device for passenger cabin door of airplane

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Publication number Priority date Publication date Assignee Title
US5305969A (en) * 1991-07-16 1994-04-26 The Boeing Company Aircraft door latch lock mechanism
US8403265B2 (en) * 2009-09-01 2013-03-26 Textron Innovations, Inc. Aircraft cabin door pressure vent system
CN204826951U (en) * 2015-08-14 2015-12-02 中国航空工业集团公司西安飞机设计研究所 Hatch door operating mechanism and have its hatch door assembly and aircraft
CN108952323B (en) * 2018-07-20 2020-04-07 中航沈飞民用飞机有限责任公司 Transmission mechanism of cabin door outer handle
CN211818818U (en) * 2019-12-17 2020-10-30 西安京东天鸿科技有限公司 Lock, cabin door and device adopting lock
CN112696111B (en) * 2020-12-29 2022-03-15 中国航空工业集团公司西安飞机设计研究所 Hatch door hoisting device of jam formula hatch door

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677612A (en) * 2017-01-06 2017-05-17 江苏美龙振华科技有限公司 Handle internal locking mechanism
CN108583844A (en) * 2018-04-19 2018-09-28 中国商用飞机有限责任公司 Anti-misoperation device for passenger cabin door of airplane

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