CN110920858B - Detachable firewall of compact passenger plane and application method thereof - Google Patents
Detachable firewall of compact passenger plane and application method thereof Download PDFInfo
- Publication number
- CN110920858B CN110920858B CN201911249982.7A CN201911249982A CN110920858B CN 110920858 B CN110920858 B CN 110920858B CN 201911249982 A CN201911249982 A CN 201911249982A CN 110920858 B CN110920858 B CN 110920858B
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- China
- Prior art keywords
- detachable
- firewall
- half frame
- panel
- adopting
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Links
- 238000000034 method Methods 0.000 title claims description 6
- 210000001503 joint Anatomy 0.000 claims abstract description 13
- 230000002787 reinforcement Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 6
- 238000003032 molecular docking Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 14
- 239000013585 weight reducing agent Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- 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
- B64C1/40—Sound or heat insulation, e.g. using insulation blankets
- B64C1/403—Arrangement of fasteners specially adapted therefor, e.g. of clips
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The invention relates to a firewall structure on an airplane, in particular to a detachable firewall structure of a compact passenger plane, which comprises an upper half frame connected with a fuselage and a lower half frame connected with the fuselage; the upper half frame and the lower half frame are respectively connected with the body of the passenger plane by adopting permanent fasteners; the detachable lower fireproof wall panel is connected with the lower half frame by adopting a detachable fastener; the detachable upper fireproof wall panel is connected with the upper half frame by adopting a detachable fastener; the detachable upper fireproof wall panel and the detachable lower fireproof wall panel are detachably connected with two sides of the fireproof wall butt joint assembly respectively. The invention has the advantages of simple disassembly, reduced maintenance time and reduced maintenance cost.
Description
Technical Field
The invention relates to a firewall structure on an airplane, in particular to a detachable firewall structure of a compact passenger plane, which is characterized in that a half part and a lower half part of a firewall are designed to be detachable structures connected by adopting a supporting plate nut and a bolt, so that the purposes of the disassembly function and the weight reduction of the firewall are realized.
Background
The cabin space around the compact passenger plane firewall structure is narrow, and its maintenance space is narrow and small, and the maintenance requirement can not be satisfied by the maintenance passageway fine. At present, the compact aircraft needs to disassemble parts of the whole firewall during maintenance, so that the workload is large, and the maintenance period is long.
Disclosure of Invention
In order to solve the problems, the technical scheme adopted by the invention is that the firewall is divided into an upper part and a lower part, the upper firewall and the lower firewall are both in a detachable structural design, and the firewall can be detached only by detaching bolts connected with the supporting plate nuts during detachment and installation, so that the smoothness of a maintenance passage is realized, and the maintenance difficulty and the maintenance cost are reduced.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a detachable firewall of a compact passenger plane comprises an upper half frame connected with a plane body and a lower half frame connected with the plane body; the upper half frame and the lower half frame are respectively connected with the body of the passenger plane by adopting permanent fasteners; the detachable lower fireproof wall panel is connected with the lower half frame by adopting a detachable fastener; the detachable upper fireproof wall panel is connected with the upper half frame by adopting a detachable fastener; the detachable upper fireproof wall panel and the detachable lower fireproof wall panel are detachably connected with two sides of the fireproof wall butt joint assembly respectively.
The detachable firewall for the compact passenger plane is characterized in that the firewall butt joint assembly consists of a firewall butt joint angle material and a plurality of supporting plate nuts.
The detachable fire wall for the compact passenger plane is connected in a mode of bolts and supporting plate nuts.
The detachable firewall panel of the compact passenger plane and the detachable firewall panel of the detachable passenger plane are respectively provided with transverse reinforcement and longitudinal reinforcement.
According to the detachable firewall for the compact passenger plane, the transverse reinforcement and the longitudinal reinforcement are connected with the detachable upper fireproof wall panel and the detachable lower fireproof wall panel through permanent fasteners.
A detachable firewall for a compact passenger plane is installed and detached in the following modes:
the installation mode is as follows: the upper half frame and the lower half frame are respectively connected with the body of the passenger plane by adopting permanent fasteners, and the lower edge of the detachable upper firewall panel is connected with the upper half frame by adopting a mode of bolts and supporting plate nuts; the upper edge of the detachable lower fireproof wall panel is connected with the lower half frame by adopting a mode of bolts and supporting plate nuts; the lower edge of the detachable upper firewall panel is connected with the upper edge of the detachable lower firewall panel through a firewall butt joint assembly;
the disassembly method comprises the following steps: dismantling bolts and washers of the firewall butt joint assembly, the lower edge of the detachable upper fireproof wall panel and the detachable lower firewall panel; dismantling bolts and gaskets of the lower edge of the detachable upper firewall panel and the upper half frame, and dismantling bolts and gaskets of the upper edge of the detachable lower firewall panel and the lower half frame; the upper half frame and the lower half frame are not dismantled.
The invention has the beneficial effects that:
1. the disassembly is simple: the disassembly work of the firewall can be realized only by disassembling the detachable bolt connected with the supporting plate nut on the detachable fireproof wall. The work of dismantling the permanent connection fastener of the firewall in the traditional structure is reduced;
2. weight reduction of the structure: because the firewall adopts a non-bearing structure design, the whole weight of the firewall can be reduced while the strength requirement is met, and the weight reduction effect is achieved; the detachable upper firewall panel and the detachable lower firewall panel adopt a design without force transmission, so that the structural weight can be effectively reduced, and the aim of reducing the weight is fulfilled again.
3. Reducing maintenance time: the detachable large bolt connected with the supporting plate nut is only required to be detached, the supporting plate nut remains on the detachable fireproof wall in the maintenance process, and the bolt is aligned to the supporting plate nut to be fastened during installation. Reducing a significant amount of fastener disassembly and installation time.
4. The maintenance cost is low: no fastener loss and low maintenance cost.
Drawings
Fig. 1 is a schematic diagram of the structure of a detachable firewall of a compact passenger aircraft in reverse heading.
FIG. 2 is a schematic view of the structure of a detachable firewall of a compact passenger aircraft in forward direction
FIG. 3 is a schematic view of a detachable firewall of a compact passenger aircraft
The meaning of the labels in the figures: 1 upper half frame, 2 lower half frame, 3 detachable lower fireproof wall panel, 4 firewall butt joint components, 5 detachable upper firewall panel, 6 longitudinal reinforcement, 7 transverse reinforcement.
Detailed Description
The invention is described in further detail below, but is not intended to be limiting in any way.
Embodiment 1A removable Firewall for a compact passenger aircraft
A detachable firewall of a compact passenger plane comprises an upper half frame 1 connected with a plane body and a lower half frame 2 connected with the plane body; the upper half frame 1 and the lower half frame 2 are respectively connected with the body of the passenger plane by adopting permanent fasteners; the detachable lower firewall panel 3 is connected with the lower half frame 2 by adopting a mode of bolts and supporting plate nuts; the detachable upper firewall panel 5 is connected with the upper half frame 1 by adopting a mode of bolts and supporting plate nuts; the detachable upper firewall panel 5 and the detachable lower firewall panel 3 are respectively connected with the two sides of the firewall docking assembly 4 in a bolt and supporting plate nut mode.
The firewall butt joint assembly 4 consists of a firewall butt joint angle and a plurality of supporting plate nuts.
The front surfaces of the detachable upper firewall panel 5 and the detachable lower firewall panel 3 are provided with transverse reinforcement bars 7; the back surfaces of the detachable upper firewall panel 5 and the detachable lower firewall panel 3 are provided with longitudinal reinforcing bars 6.
The transverse reinforcement 7, the longitudinal reinforcement 6, the detachable upper firewall panel 5 and the detachable lower firewall panel 3 are connected by adopting permanent fasteners.
A detachable firewall for a compact passenger plane is installed and detached in the following modes:
the installation mode is as follows: the upper half frame 1 and the lower half frame 2 are respectively connected with the body of the passenger plane by adopting permanent fasteners, and the lower edge of the detachable upper firewall panel 5 is connected with the upper half frame 1 by adopting a mode of bolts and supporting plate nuts; the upper edge of the detachable lower firewall panel 3 is connected with the lower half frame 2 by adopting a bolt and supporting plate nut mode; the lower edge of the detachable upper firewall panel 5 is connected with the upper edge of the detachable lower firewall panel 3 through a firewall docking assembly 4;
the disassembly method comprises the following steps: dismantling bolts and washers of the lower edge of the firewall docking assembly 4 and the detachable upper firewall panel 5 and the detachable lower firewall panel 3; dismantling bolts and gaskets between the lower edge of the detachable upper firewall panel 5 and the upper half frame 1, and dismantling bolts and gaskets between the upper edge of the detachable lower firewall panel 3 and the lower half frame 2; the upper half frame 1 and the lower half frame 2 are not dismantled.
Claims (2)
1. A detachable firewall of a compact passenger plane is characterized by comprising an upper half frame (1) connected with a plane body and a lower half frame (2) connected with the plane body; the upper half frame (1) and the lower half frame (2) are respectively connected with the body of the passenger plane by adopting permanent fasteners; the detachable lower firewall panel (3) is connected with the lower half frame (2) by adopting a detachable fastener; the detachable upper firewall panel (5) is connected with the upper half frame (1) by adopting a detachable fastener; the detachable upper firewall panel (5) and the detachable lower firewall panel (3) are respectively detachably connected with two sides of the firewall docking assembly (4);
the firewall butt joint assembly (4) consists of a firewall butt joint angle material and a plurality of supporting plate nuts;
the detachable connection is realized in a mode of connecting a bolt and a supporting plate nut;
the detachable upper firewall panel (5) and the detachable lower firewall panel (3) are respectively provided with a transverse reinforcement (7) and a longitudinal reinforcement (6);
the transverse reinforcement (7) and the longitudinal reinforcement (6) are connected with the detachable upper firewall panel (5) and the detachable lower firewall panel (3) by adopting permanent fasteners.
2. A detachable firewall of a compact passenger plane is characterized by comprising the following mounting and dismounting modes:
the installation mode is as follows: the upper half frame (1) and the lower half frame (2) are respectively connected with the body of the passenger plane by adopting permanent fasteners, and the upper edge of the detachable upper firewall panel (5) is connected with the upper half frame (1) by adopting a mode of bolts and supporting plate nuts; the lower edge of the detachable lower firewall panel (3) is connected with the lower half frame (2) by adopting a mode of bolts and supporting plate nuts; the lower edge of the detachable upper firewall panel (5) is connected with the upper edge of the detachable lower firewall panel (3) through a firewall butt joint assembly (4);
the disassembly method comprises the following steps: removing bolts and supporting plate nuts of the lower edge of the firewall butt joint assembly (4) and the detachable upper firewall panel (5) and the detachable lower firewall panel (3); dismantling bolts and supporting plate nuts of the upper edge of the detachable upper firewall panel (5) and the upper half frame (1), and dismantling bolts and supporting plate nuts of the lower edge of the detachable lower firewall panel (3) and the lower half frame (2); the upper half frame (1) and the lower half frame (2) are not dismantled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911249982.7A CN110920858B (en) | 2019-12-09 | 2019-12-09 | Detachable firewall of compact passenger plane and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911249982.7A CN110920858B (en) | 2019-12-09 | 2019-12-09 | Detachable firewall of compact passenger plane and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110920858A CN110920858A (en) | 2020-03-27 |
| CN110920858B true CN110920858B (en) | 2024-01-23 |
Family
ID=69858473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911249982.7A Active CN110920858B (en) | 2019-12-09 | 2019-12-09 | Detachable firewall of compact passenger plane and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110920858B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002317518A (en) * | 2001-04-19 | 2002-10-31 | Ykk Architectural Products Inc | Glass curtain wall |
| CN203753414U (en) * | 2014-01-27 | 2014-08-06 | 哈尔滨飞机工业集团有限责任公司 | Detachable fireproof wall |
| EP2931991A1 (en) * | 2012-12-14 | 2015-10-21 | Darchem Engineering Limited | Fire resistant structure |
| CN204775980U (en) * | 2015-06-23 | 2015-11-18 | 中国航空工业集团公司西安飞机设计研究所 | Airtight subdivision structure of frame is hanged to large -scale aircraft inflection formula half |
| CN107128475A (en) * | 2017-05-10 | 2017-09-05 | 江苏美龙振华科技有限公司 | A kind of plate composite pressure bulkhead |
| CN207292369U (en) * | 2017-09-30 | 2018-05-01 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft conversion deckle board |
| CN110001970A (en) * | 2017-12-15 | 2019-07-12 | 空中客车美洲公司 | Partition wall, the aircraft including partition wall and installation and the method for supporting fabrication |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69636148T2 (en) * | 1996-01-12 | 2007-03-01 | The Boeing Co., Chicago | Sandwich structures with several sheets and an integrated hardpoint |
| FR2968271B1 (en) * | 2010-12-01 | 2013-01-18 | Airbus Operations Sas | TRIANGULAR PANEL HAS REAR OF A CENTRAL BOX OF THE FUSELAGE OF AN AIRCRAFT |
| EP2530010B1 (en) * | 2011-06-02 | 2013-09-18 | Bell Helicopter Textron Inc. | Integrally stiffened panel |
-
2019
- 2019-12-09 CN CN201911249982.7A patent/CN110920858B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002317518A (en) * | 2001-04-19 | 2002-10-31 | Ykk Architectural Products Inc | Glass curtain wall |
| EP2931991A1 (en) * | 2012-12-14 | 2015-10-21 | Darchem Engineering Limited | Fire resistant structure |
| CN203753414U (en) * | 2014-01-27 | 2014-08-06 | 哈尔滨飞机工业集团有限责任公司 | Detachable fireproof wall |
| CN204775980U (en) * | 2015-06-23 | 2015-11-18 | 中国航空工业集团公司西安飞机设计研究所 | Airtight subdivision structure of frame is hanged to large -scale aircraft inflection formula half |
| CN107128475A (en) * | 2017-05-10 | 2017-09-05 | 江苏美龙振华科技有限公司 | A kind of plate composite pressure bulkhead |
| CN207292369U (en) * | 2017-09-30 | 2018-05-01 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft conversion deckle board |
| CN110001970A (en) * | 2017-12-15 | 2019-07-12 | 空中客车美洲公司 | Partition wall, the aircraft including partition wall and installation and the method for supporting fabrication |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110920858A (en) | 2020-03-27 |
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