CN114212247B - Emergency pontoon suitable for skid landing gear - Google Patents
Emergency pontoon suitable for skid landing gear Download PDFInfo
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- CN114212247B CN114212247B CN202111608278.3A CN202111608278A CN114212247B CN 114212247 B CN114212247 B CN 114212247B CN 202111608278 A CN202111608278 A CN 202111608278A CN 114212247 B CN114212247 B CN 114212247B
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- pontoon
- emergency
- connector
- rear end
- skin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/54—Floats
- B64C25/56—Floats inflatable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Tires In General (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The application provides an emergency pontoon for a skid-type landing gear, the emergency pontoon comprising: the emergency air bag comprises an upper skin connecting sheet and a pontoon connecting sheet; the upper skin is connected with the upper skin connecting sheet; the connecting beam is connected with the pontoon connecting sheet; wherein, the connecting beam is also provided with a lower skin; the upper skin and the lower skin connect the emergency balloon and the connection Liang Fengbao by a reeving connection; the emergency pontoon provided by the application can be matched with various sliding-tilting landing gear aircrafts, is rapid and convenient to assemble and disassemble, has no influence on other airborne equipment of the aircrafts, has higher reliability and safety, and has higher popularization value.
Description
Technical Field
The application belongs to the technical field of aviation emergency rescue safety, and particularly relates to an emergency buoy suitable for a skid-type undercarriage.
Background
In order to ensure the flight safety of the helicopter in the water area or the sea area, water emergency life-saving equipment such as an emergency pontoon is required to be equipped, and the conventional helicopter emergency pontoon is mainly suitable for a wheel landing gear and is arranged in a relevant belly, short wing or tail beam transition section.
The installation schemes are poor in compatibility with the sliding-tilting landing gear helicopter, and the problems that the installation positions are occupied, the pontoons interfere with the landing gear after being started according to the original installation schemes, the disassembly is inconvenient and the like exist.
Disclosure of Invention
In view of the above technical problems, the present application provides an emergency buoy adapted for a skid landing gear, the emergency buoy comprising:
the emergency air bag comprises an upper skin connecting sheet and a pontoon connecting sheet;
the upper skin is connected with the upper skin connecting sheet;
the connecting beam is connected with the pontoon connecting sheet; wherein, the connecting beam is also provided with a lower skin; the upper skin and the lower skin connect the emergency balloon and the connection Liang Fengbao by a reeving connection.
Preferably, the lower skin has a lower skin fixing hole; the lower skin is fixed on the connecting beam through the lower skin fixing hole.
Preferably, the emergency air bag further comprises a pontoon front end cover and a pontoon rear end cover; the pontoon front end cover and the pontoon rear end cover are used for sealing the end part of the emergency air bag.
Preferably, the connecting beam is provided with a first front end joint, a second front end joint and a rear end joint; the connecting beam is connected with the pontoon connecting sheet through the first front end connector and the rear end connector.
Preferably, the first front end connector and the rear end connector are both provided with a first connector; the connecting beam is connected with the pontoon connecting sheet through the first joint.
Preferably, the emergency buoy further comprises:
the front end connecting device is arranged at the end part of the skid;
the rear end connecting device is arranged at the end part of the skid; the front end connecting device is connected with the second front end connector, and the rear end connecting device is connected with the rear end connector.
Preferably, the front-end connection device comprises a front-end binaural joint, which is connected to the second front-end joint.
Preferably, the first joint comprises a three-ear joint, and the rear-end connecting device comprises a rear-end double-ear joint, and the rear-end double-ear joint is connected with the three-ear joint.
The application has the following technical effects:
the emergency pontoon provided by the application can be matched with various sliding-tilting landing gear aircrafts, is rapid and convenient to assemble and disassemble, has no influence on other airborne equipment of the aircrafts, has higher reliability and safety, and has higher popularization value.
Drawings
FIG. 1 is a schematic view of an emergency pontoon structure for a skid landing gear according to an embodiment of the application;
FIG. 2 is a schematic diagram of a specific connection mode according to an embodiment of the present application;
FIG. 3 is a schematic structural view of a front end connection device of an emergency buoy according to an embodiment of the present application;
FIG. 4 is a schematic structural view of a rear end connection device of an emergency buoy according to an embodiment of the present application;
wherein: the novel high-strength steel cable bridge comprises a 1-upper skin, a 2-upper skin connecting sheet, a 3-emergency air bag, a 4-buoy connecting sheet, a 5-front sliding and tilting sheet, a 6-front end connector, a 7-connecting beam, an 8-rear sliding and tilting sheet, a 9-rear end connector, a 10-quick release pin, a 11-buoy rear end cover, a 12-buoy front end cover, a 13-lower skin, a 14-lower skin fixing hole, a 15-limit screw, a 16-front end double-lug connector, a 17-spring gasket, a 18-fixing bolt, a 19-limit screw, a 20-nut, a 21-rear end connector adapter and a 22-rear end double-lug connector.
Detailed Description
It should be noted that, first, the application relates to an emergency pontoon suitable for skid landing gear, which can provide an additional scheme for the emergency pontoon for helicopters of various skid landing gears. The installation is quick and convenient, and various airborne states of the helicopter are not affected; the detachable buoy structure is convenient to detach and convenient to maintain, and is suitable for a sliding-tilting landing gear structure through the front support and the rear support and the sliding-tilting installation.
Secondly, the application aims to solve the problem of adding helicopter pontoons of various sliding-tilting landing gears, an emergency buoy suitable for use with a skid landing gear is provided: the assembly and the disassembly are quick and convenient, the original various airborne states of the helicopter are not influenced, and the maintenance is convenient.
In the embodiment of the application, the emergency buoy suitable for the skid-type landing gear integrates the components such as the connecting beam, the front end connector, the tail end connector, the emergency air bag, the connecting and fixing structure, the skin and the like, and can realize air bag packaging, quick installation, quick disassembly and the like.
The pontoon structure is installed through the front support and the rear support and the sliding and tilting, and is suitable for a sliding and tilting landing gear structure. The emergency air bag is constrained to the connection beam by a connection fixation structure applied thereto, and then the folded envelope is wrapped by the skin by a force-fixing rope to match the aerodynamic profile of the skid.
Wherein, the front and back ends of the connecting beam are respectively connected with the front end joint and the tail end joint through screws and threaded connection: the front end connector is of a single-lug structure, a double-lug connector is matched with the sliding and tilting front end of the landing gear of the machine body, and a quick release bolt or a screw rod is coaxially applied to the front end connector and the double-lug connector through holes to fixedly connect the front end connector and the double-lug connector; the tail end connector of the pontoon is a three-lug connector, a double-lug connector is matched with the corresponding position of the sliding and tilting rear end of the undercarriage of the machine body, and the two connectors are fixedly connected by coaxially applying a quick-release bolt or a screw rod through holes.
The buoy is connected with the front end and the rear end of the sliding and tilting through a built-in connecting beam, the air bag is restrained to the connecting beam through a connecting belt and other structures, the air bag is packed in the skin at ordinary times, and the helicopter floats when in emergency work.
The emergency pontoon provided by the application can be matched with various sliding-tilting landing gear aircrafts, is rapid and convenient to assemble and disassemble, has no influence on other airborne equipment of the aircrafts, has higher reliability and safety, and has higher popularization value.
The application is further described in detail below with reference to fig. 1-4:
in one possible implementation manner, the application provides an emergency buoy suitable for a skid-type landing gear, which mainly comprises an upper skin 1, an upper skin connecting sheet 2, an emergency air bag 3, a buoy connecting sheet 4, a front sliding fin 5, a front end connector 6, a connecting beam 7, a rear sliding fin 8, a rear end connector 9, a quick release pin 10, a buoy rear end cover 11, a buoy front end cover 12, a lower skin 13, a lower skin fixing hole 14, a limit screw 15, a front end double-lug connector 16, a spring gasket 17, a fixing bolt 18, a limit screw 19, a nut 20, a rear end connector adapter 21 and a rear end double-lug connector 22.
The front end connector 6 (a first front end connector and a second front end connector) is arranged at the front end of the connecting beam 7, the rear end connector 7 is arranged at the rear section of the connecting beam 7, and two connectors are respectively provided with a double-lug connector which is connected with the 2-group buoy connecting sheet 4, so that an emergency buoy is fixed on the connecting beam 7. The lower skin 13 is provided with lower skin fixing holes 14 to fix the lower skin to the connecting beam 7.
Wherein, be provided with 2 sets of buoy connection pieces, 1 set of skin connection pieces on the emergent gasbag, wherein, buoy connection piece is connected with first front end joint and rear end joint 9 respectively, goes up the skin and is connected with last skin connection piece on the emergent gasbag, fixes it on the emergent gasbag.
The package is that the upper skin and the lower skin 13 fixed on the connecting beam 7 are connected in a threading way, so that the air bag and the connection Liang Fengbao are arranged in the skin, and the front end and the rear end are packaged by the front end cover and the rear end cover of the pontoon respectively.
The emergency pontoon is respectively connected with the connecting devices arranged at the front end and the rear end of the sliding and tilting through the front end and the rear end after being enveloped; the sliding and tilting front end connecting device is of a half cylinder and front end double-lug joint structure, wherein the half cylinder is matched with the sliding and tilting shape, the sliding and tilting front end connecting device is fixed on the front end sliding and tilting through a limit bolt, and the front end double-lug joint and a second front end joint on the connecting beam are fixed in the same hole and then are installed, fixed and detached through a quick-release pin; the sliding and tilting rear end connecting device is a cylindrical hole (divided into left and right sides) +a double-lug joint structure.
Wherein, the cylindrical hole matches with the shape of the sliding and tilting, and two semi-cylindrical holes restrict and fix the sliding and tilting at the rear end 8 through a limit bolt 15 and a limit screw 19, and the two lugs 22 on the connecting device and the three lugs of the rear end connector 6 of the connecting beam are positioned in the same hole and then are fixed and detached by the quick-release pin 10.
In a possible implementation manner, when emergency inflation is carried out, the force of expanding the emergency air bag releases the restraint of the upper skin and the lower skin, the emergency air bag is restrained on the connecting beam 7 through the 2 groups of pontoon connecting pieces 4, the load and the buoyancy born by the air bag during emergency floating are transferred to the connecting beam through the connecting pontoon connecting pieces 4, and the buoyancy is transferred to the aircraft through the connecting devices at the front end and the rear end to realize the floating function. Meanwhile, the emergency pontoon with the structure can be quickly disassembled.
The emergency pontoon provided by the application can be matched with various sliding-tilting landing gear aircrafts, is rapid and convenient to assemble and disassemble, has no influence on other airborne equipment of the aircrafts, has higher reliability and safety, and has higher popularization value.
Claims (3)
1. An emergency pontoon for a skid landing gear, the emergency pontoon comprising:
the emergency air bag comprises an upper skin connecting sheet and a pontoon connecting sheet;
the upper skin is connected with the upper skin connecting sheet;
the connecting beam is connected with the pontoon connecting sheet; wherein, the connecting beam is also provided with a lower skin; the upper skin and the lower skin connect the emergency balloon and the connection Liang Fengbao by a reeving connection;
the connecting beam is provided with a first front end connector, a second front end connector and a rear end connector; the connecting beam is connected with the pontoon connecting sheet through the first front end connector and the rear end connector; the first front end connector and the rear end connector are respectively provided with a first connector; the connecting beam is connected with the pontoon connecting sheet through the first joint;
the emergency buoy further comprises:
the front end connecting device is arranged at the end part of the skid;
the rear end connecting device is arranged at the end part of the skid; the front end connecting device is connected with the second front end connector, and the rear end connecting device is connected with the rear end connector; the front-end connecting device comprises a front-end double-lug connector, and the front-end double-lug connector is connected with the second front-end connector; the first joint comprises a three-ear joint, the rear end connecting device comprises a rear end double-ear joint, and the rear end double-ear joint is connected with the three-ear joint.
2. An emergency pontoon for a skid landing gear according to claim 1, wherein the lower skin has a lower skin fixing hole; the lower skin is fixed on the connecting beam through the lower skin fixing hole.
3. An emergency pontoon for a skid landing gear according to claim 1, wherein the emergency air bag further comprises a pontoon front end cover and a pontoon rear end cover; the pontoon front end cover and the pontoon rear end cover are used for sealing the end part of the emergency air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111608278.3A CN114212247B (en) | 2021-12-23 | 2021-12-23 | Emergency pontoon suitable for skid landing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111608278.3A CN114212247B (en) | 2021-12-23 | 2021-12-23 | Emergency pontoon suitable for skid landing gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114212247A CN114212247A (en) | 2022-03-22 |
| CN114212247B true CN114212247B (en) | 2023-10-20 |
Family
ID=80705896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111608278.3A Active CN114212247B (en) | 2021-12-23 | 2021-12-23 | Emergency pontoon suitable for skid landing gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114212247B (en) |
Citations (13)
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| US3176937A (en) * | 1962-09-07 | 1965-04-06 | United Aircraft Corp | Emergency flotation gear |
| CN2687008Y (en) * | 2004-03-17 | 2005-03-23 | 李晓阳 | General float for hydroplane model |
| US7309267B1 (en) * | 2006-09-25 | 2007-12-18 | Air Cruisers Company | Integrated float raft |
| CN205440857U (en) * | 2016-03-18 | 2016-08-10 | 中国直升机设计研究所 | Helicopter skid formula undercarriage |
| CN106103274A (en) * | 2015-07-02 | 2016-11-09 | 深圳市大疆创新科技有限公司 | Unmanned plane, its control system and method, and unmanned plane landing control method |
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| WO2018141072A1 (en) * | 2017-02-06 | 2018-08-09 | Solar Ship Inc. | Aircraft with inflatable amphibious landing gear |
| CN111225852A (en) * | 2017-09-25 | 2020-06-02 | 赛峰航空系统公司 | Inflation device for buoyancy of emergency aircraft |
| CN211196601U (en) * | 2019-10-23 | 2020-08-07 | 南京航空航天大学 | Be applied to unmanned helicopter of crossing of marine survey |
| CN112173091A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Prevent empting pull belt formula helicopter emergency floating system's flotation pontoon |
| CN213139159U (en) * | 2020-09-04 | 2021-05-07 | 航宇救生装备有限公司 | Quick-release emergency buoy |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140252166A1 (en) * | 2013-03-06 | 2014-09-11 | Bell Helicopter Textron Inc. | Crash Load Attenuator for Water Ditching and Floatation |
| EP3263451A1 (en) * | 2016-06-28 | 2018-01-03 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | An aircraft with a fuselage and a non-retractable skid-type landing gear |
| EP3907135B1 (en) * | 2020-04-30 | 2022-04-13 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | A life raft system for an aircraft |
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2021
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Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3176937A (en) * | 1962-09-07 | 1965-04-06 | United Aircraft Corp | Emergency flotation gear |
| CN2687008Y (en) * | 2004-03-17 | 2005-03-23 | 李晓阳 | General float for hydroplane model |
| US7309267B1 (en) * | 2006-09-25 | 2007-12-18 | Air Cruisers Company | Integrated float raft |
| CN106103274A (en) * | 2015-07-02 | 2016-11-09 | 深圳市大疆创新科技有限公司 | Unmanned plane, its control system and method, and unmanned plane landing control method |
| CN205440857U (en) * | 2016-03-18 | 2016-08-10 | 中国直升机设计研究所 | Helicopter skid formula undercarriage |
| CN205735095U (en) * | 2016-06-22 | 2016-11-30 | 杭州世佳布艺有限公司 | A kind of lace cutting machine |
| WO2018141072A1 (en) * | 2017-02-06 | 2018-08-09 | Solar Ship Inc. | Aircraft with inflatable amphibious landing gear |
| CN107539453A (en) * | 2017-09-04 | 2018-01-05 | 陶文英 | A kind of low-latitude flying operation unmanned plane and its control system and application |
| CN111225852A (en) * | 2017-09-25 | 2020-06-02 | 赛峰航空系统公司 | Inflation device for buoyancy of emergency aircraft |
| CN207595247U (en) * | 2017-11-23 | 2018-07-10 | 深圳市智璟科技有限公司 | Water route Amphibious type unmanned plane |
| CN211196601U (en) * | 2019-10-23 | 2020-08-07 | 南京航空航天大学 | Be applied to unmanned helicopter of crossing of marine survey |
| CN213139159U (en) * | 2020-09-04 | 2021-05-07 | 航宇救生装备有限公司 | Quick-release emergency buoy |
| CN112173091A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Prevent empting pull belt formula helicopter emergency floating system's flotation pontoon |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114212247A (en) | 2022-03-22 |
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