CN108100242A - A kind of external helicopter short limb floating drum cabin - Google Patents
A kind of external helicopter short limb floating drum cabin Download PDFInfo
- Publication number
- CN108100242A CN108100242A CN201711255855.9A CN201711255855A CN108100242A CN 108100242 A CN108100242 A CN 108100242A CN 201711255855 A CN201711255855 A CN 201711255855A CN 108100242 A CN108100242 A CN 108100242A
- Authority
- CN
- China
- Prior art keywords
- floating drum
- pedestal
- hatchcover
- gasket
- short limb
- 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.)
- Granted
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Classifications
-
- 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
-
- 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
- B64C1/34—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like comprising inflatable structural components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention discloses a kind of external helicopter short limb floating drum cabin, belong to helicopter and meet an urgent need floating system design field.Including：Hatchcover is movably arranged on pedestal and is connected by captive band with pedestal；Pedestal is connected by pedestal connector with helicopter short limb；Floating drum fold storage passes through floating drum connect band and is connected through pedestal with pedestal connector between hatchcover and pedestal；Loading line passes through to be connected on pedestal with floating drum, it is inflated；Floating drum after inflation, rapid expanding are abutted with hatchcover inner wall, and outside extruding force is generated to hatchcover, and when extruding force is more than frictional force and coupling mechanism force between hatchcover and pedestal, hatchcover pops up rapidly.The present invention is in floating drum and guarantee the floating drum smooth fast aeration distending shaping out of floating drum cabin of folded state for storing, fixing and protecting; not only meet usually installation requirement but also meet Emergency use requirement; suitable for helicopter meet an urgent need floating system meet an urgent need floating drum cabin design; with simple in structure, the features such as strong applicability.
Description
Technical field
It meets an urgent need floating system design field the invention belongs to helicopter, and in particular to a kind of external helicopter short limb
Floating drum cabin.
Background technology
When helicopter meets an urgent need floating system for helicopter ditching, enough buoyancy and stabilization are provided for helicopter
Property, helicopter is enable to float certain time in the water surface with upward posture, persons on board is allowed to have time enough to evacuate to and are rescued
It escapes on raw raft, is the important life-saving equipment for ensureing helicopter overwater flight safety.Helicopter floating system of meeting an urgent need is main
It is made of float component, inflatable component and control assembly.Control assembly can release inflatable component manually or dampening automatic trigger
Put gases at high pressure.Inflatable component is made of loading line, gas cylinder, and energy quick release gases at high pressure through loading line, fill floating drum
Gas shapes.Float component is made of floating drum, floating drum cabin, and floating drum cabin is used to storing, fix and protecting the floating drum in folded state,
After the gases at high pressure of gas cylinder are filled with, floating drum can be made to inflate quick distending shaping out of floating drum cabin, floating drum will be floated by connect band
Buoyancy is transferred on fuselage.
Since rear float component is needed mounted on the short limb end of helicopter, it is necessary to design one with reference to the characteristics of helicopter
A new external floating drum cabin is used to store, fixes and protects the floating drum in folded state；Floating drum hatchcover should carry out
Rectification is to reduce aerodynamic drag, and lid should be able to be flicked quickly during aeration of float, and the lid flicked should be able to be tethered in machine
With.
The content of the invention
The purpose of the present invention：To solve the above-mentioned problems, the present invention proposes a kind of external helicopter short limb floating drum cabin,
It is mounted on by additional floating drum pedestal connector outside short limb, the floating drum of storage inside folded state protecteds from extraneous ring
Border influences；When internal folding aeration of float to certain pressure, the hatchcover in floating drum cabin can be flicked quickly, and the cabin flicked
Lid should be able to be tethered in the short limb floating drum cabin hatchcover on fuselage and carry out rectification to reduce aerodynamic drag；The short limb floating drum cabin can be protected
Card will not cause it to come off in helicopter flight windblast.
Technical scheme：A kind of external helicopter short limb floating drum cabin, including：Pedestal, hatchcover, captive band, bottom
Seated connection head and floating drum；
The hatchcover is movably arranged on pedestal and is connected by captive band with pedestal；
The pedestal is connected by pedestal connector with helicopter short limb；
The floating drum fold storage passes through floating drum connect band and connects through pedestal and pedestal connector between hatchcover and pedestal
It connects；
Loading line passes through to be connected on pedestal with the floating drum, it is inflated；
Floating drum after inflation, rapid expanding are abutted with hatchcover inner wall, outside extruding force are generated to hatchcover, when extruding force surpasses
When crossing the frictional force and coupling mechanism force between hatchcover and pedestal, hatchcover pops up rapidly.
Preferably, the captive band carries out multiple doubling, and uses seam after each doubling of the captive band at its folding
Line is sewed.
Preferably, the hatchcover edge is equipped with multiple U-shaped mounting grooves, and first is bonded with respectively in the U-shaped mounting groove
Gasket or the second gasket；
The hatchcover has been arranged circumferentially sealing ring at the position of U-shaped mounting groove, when the hatchcover is connected with pedestal,
The sealing ring keeps sealing with the pedestal.
Preferably, second gasket is symmetrical arranged along the long side of hatchcover, and quantity is much smaller than the first gasket.
Preferably, first gasket and the second gasket are provided with the U-type groove of identical bore；
Second gasket extends out to form a circular arc in its U-type groove blind end, and the arc radius is more than its U-type groove opening
The radius at end.
Preferably, the circular arc of second gasket is provided with bushing；
The outer diameter of the bushing is more than its arc radius, i.e. bushing coining is mounted on the circular arc.
Preferably, the first guard ring is provided in the U-type groove of first gasket, screw passes through the support of the first guard ring and pedestal
Crab bolt connects；
Be respectively arranged with bushing in the U-type groove of second gasket, first guard ring is socketed in bush inside, the two it
Between be provided with washer, the screw is connected through the plate nut of the first guard ring and pedestal.
Preferably, the pedestal is provided with floating drum connection band insertion hole, and guarantor is provided in the floating drum connect band through hole
Protect adhesive tape.
Preferably, boss is provided at the base center, the boss is provided with loading line by hole, is filled described
Air pipe is by setting the second guard ring in hole.
The advantageous effect of technical solution of the present invention：The present invention meets the cabin design function requirement of helicopter external floating drum, uses
In storage, the floating drum that fixed and protection is in folded state and ensure floating drum out of floating drum cabin smooth fast aeration distending into
Shape had not only met usually installation requirement but also had met Emergency use requirement, was set suitable for helicopter floating system floating drum cabin of meeting an urgent need of meeting an urgent need
Meter has the features such as simple in structure, strong applicability.
Description of the drawings
Fig. 1 is the scheme of installation of a preferred embodiment in external helicopter short limb floating drum cabin of the present invention；
Fig. 2 is the structure diagram of a preferred embodiment in external helicopter short limb floating drum cabin of the present invention；
Fig. 3 is that the hatchcover of embodiment illustrated in fig. 2 and pedestal are flexible coupling schematic diagram；
Fig. 4 is the understructure schematic diagram of embodiment illustrated in fig. 3；
Fig. 5 is the hatch cover structure schematic diagram of embodiment illustrated in fig. 3；
Fig. 6 is the first gasket construction schematic diagram of embodiment illustrated in fig. 5；
Fig. 7 is the second gasket construction schematic diagram of embodiment illustrated in fig. 5；
Fig. 8 is the first gasket scheme of installation of embodiment illustrated in fig. 6；
Fig. 9 is the second gasket scheme of installation of embodiment illustrated in fig. 7；
Figure 10 is the captive band structure diagram of embodiment illustrated in fig. 3；
Figure 11 is the captive band schematic cross-sectional view of embodiment illustrated in fig. 3；
Wherein, 1- pedestals, 2- hatchcovers, 3- captive bands, 4- pedestal connectors, 5- floating drums, 6- floating drum connect bands, 7- gas tubes
Road, 8-U type mounting grooves, the first gaskets of 9-, the second gaskets of 10-, 11- sealing rings, 12- bushings, the first guard rings of 13-, 14- screws,
15- plate nuts, 16- floating drums connection band insertion hole, 17- protection adhesive tape, 18- boss, 19- loading lines pass through hole, 20- second
Guard ring, 21- sutures.
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or there is same or like element.Described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.Under
Face is described in detail the embodiment of the present invention with reference to attached drawing.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of the description present invention and simplifies description rather than instruction or imply signified dress
It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention is protected
The limitation of scope.
As shown in Figure 1 to Figure 3, a kind of external helicopter short limb floating drum cabin is arranged in helicopter short limb end, including：Bottom
Seat 1, hatchcover 2, captive band 3, pedestal connector 4 and floating drum 5；
Hatchcover 2 is movably arranged on pedestal 1 and is connected by captive band 3 with pedestal 1, and pedestal 1 is by pedestal connector 4 and directly
The short limb connection of the machine of liter, 5 fold storage of floating drum pass through floating drum connect band 6 through pedestal 1 and pedestal between hatchcover 2 and pedestal 1
Connector 4 connects；
Loading line 7 is inflated it, the floating drum 5 after inflation through being connected with floating drum 5 on pedestal 1, rapid expanding and
2 inner wall of hatchcover abuts, and outside extruding force is generated to hatchcover 2, when extruding force be more than frictional force between hatchcover 2 and pedestal 1 and
During coupling mechanism force, hatchcover 2 pops up rapidly.
As shown in Figure 4：In the present embodiment, pedestal 1 is made of carbon fibre composite, is provided with 4 floating drum connections
Band insertion hole 16 is provided with protection adhesive tape 17 in floating drum connect band through hole 16, prevents floating drum connect band 6 from causing to grind to pedestal 1
Damage；
Boss 18 is provided at 1 center of pedestal, boss 18 is provided with 3 loading lines by hole 19, leads in loading line
Second guard ring 20 in via 19 is set, is formed and loading line is protected by hole 19.
As shown in Figures 5 to 7：Hatchcover 2 uses hard glass fibrous composite in the present embodiment, carries out rectification to reduce
Aerodynamic drag；
Its edge is equipped with 22 U-shaped mounting grooves 8, and the first gasket 9 or the second gasket are bonded with respectively in U-shaped mounting groove 8
The structure of 10 pairs of hatchcovers 2 is implemented to strengthen；
Hatchcover 2 has been arranged circumferentially sealing ring 11 at the position of U-shaped mounting groove 8, close when hatchcover 2 is connected with pedestal 1
Seal 11 is abutted with pedestal 1, ensures there is excellent sealing between hatchcover 2 and pedestal 1.
It is appreciated that：Second gasket 10 is symmetrical arranged along the long side of hatchcover 2, and quantity is much smaller than the first gasket 9, this
In embodiment, selection is positioned at 4 mounting grooves the second gasket of installation of long side, remaining first gasket of installation in 22 U-shaped mounting grooves
9.
As can be seen from figures 8 and 9, the first gasket 9 and the second gasket 10 are provided with the U-type groove of identical bore, the second gasket 10
It extends out to form a circular arc in its U-type groove blind end, arc radius is more than the radius of its U-type groove openend, the circle of the second gasket 10
Bushing 12 is provided at arc, the outer diameter of bushing 12 is more than its arc radius, i.e., bushing 12, which squeezes, is mounted on circular arc.
The first guard ring 13 is provided in the U-type groove of first gasket 9, screw 14 passes through the supporting plate spiral shell of the first guard ring 13 and pedestal
Mother 15 connects, and is respectively arranged with bushing 12 in the U-type groove of the second gasket 10, the first guard ring 13 is socketed in inside bushing 12, the two
Between be provided with washer, screw 14 is connected through the first guard ring 13 with the plate nut 15 of pedestal, is realized the activity peace of hatchcover 2
On pedestal 2.
Tighten screw 14 so that between hatchcover 2 and pedestal 1 there is certain frictional force, and pass through control and often locate screw 14
With identical screw-down torque, it is ensured that frictional force is uniformly distributed.It is big that 12 outer diameter of bushing is more than U-type groove opening on the second gasket 10
It is small, it can will lock floating drum hatchcover 2 herein.
Floating drum after inflation, rapid expanding generate hatchcover 2 outside extruding force at 2 inner wall of hatchcover, when extruding force surpasses
When crossing the frictional force and coupling mechanism force between hatchcover 2 and pedestal 1, bushing 12 deforms, and diameter reduces, and the second gasket 10 is along U
Type groove skids off, and hatchcover 2 departs from pedestal 1.
Hatchcover 2 flicks moment, and captive band 3 bears greater impact load in the case where hatchcover 2 is pullled, so as to which suture 21 be pulled apart,
Absorb part shock loading, it is ensured that the hatchcover 2 after flicking can be tethered on pedestal 1.
Type of attachment between hatchcover 2 and pedestal 1, it is ensured that there is certain frictional force between hatchcover component and base assembly
And coupling mechanism force, frictional force and coupling mechanism force are uniformly distributed, when both having ensured helicopter flight windblast, hatchcover 2 cannot come off, and cause
Floating drum comes off, and can quickly be flicked when internal folding aeration of float is to 3ps i.
As shown in Figures 10 and 11, captive band 3 carries out multiple doubling in the present embodiment, and after 3 each doubling of captive band
It is sewed at its folding using suture 21, the part shock loading during hatchcover flicks can be absorbed, prevent hatchcover from departing from
Fuselage avoids hatchcover from colliding with rotor, jeopardizes Helicopter Safety.
The present invention is external helicopter short limb floating drum cabin, when helicopter fails to provide embedded structure for installing floating drum
Cabin can only use external floating drum cabin, and floating drum cabin is mounted on by floating drum pedestal connector outside short limb, not damage short limb installation knot
Structure, pedestal connector connect belt lacing not only for fixing floating drum cabin, but also as floating drum, are transferred on fuselage, tie convenient for floating buoyancy
Configuration formula is simple.
The present invention meets the cabin design function requirement of helicopter external floating drum, is folded for storing, fixing and protect to be in
The smooth fast aeration distending shaping out of floating drum cabin of the floating drum and guarantee floating drum of state, had not only met usually installation requirement but also had met
Emergency use requirement, suitable for helicopter meet an urgent need floating system meet an urgent need floating drum cabin design, have simple in structure, the spies such as strong applicability
Point.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced
It changes；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the essence of various embodiments of the present invention technical solution
God and scope.
Claims (9)
1. a kind of external helicopter short limb floating drum cabin, it is characterised in that：Including：Pedestal (1), hatchcover (2), captive band (3), bottom
Seated connection head (4) and floating drum (5)；
The hatchcover (2) is movably arranged on pedestal (1) and is connected by captive band (3) with pedestal (1)；
The pedestal (1) is connected by pedestal connector (4) with helicopter short limb；
Floating drum (5) fold storage passes through floating drum connect band (6) through pedestal (1) between hatchcover (2) and pedestal (1)
It is connected with pedestal connector (4)；
Loading line (7) passes through to be connected on pedestal (1) with the floating drum (5), it is inflated；
Floating drum (5) after inflation, rapid expanding are abutted with hatchcover (2) inner wall, and outside extruding force is generated to hatchcover (2), when crowded
When pressure is more than the frictional force and coupling mechanism force between hatchcover (2) and pedestal (1), hatchcover (2) pops up rapidly.
2. external helicopter short limb floating drum cabin according to claim 1, it is characterised in that：The captive band (3) carries out
Multiple doubling, and sewed after each doubling of the captive band (3) at its folding using suture (21).
3. external helicopter short limb floating drum cabin according to claim 1, it is characterised in that：Hatchcover (2) edge
Equipped with multiple U-shaped mounting grooves (8), the first gasket (9) or the second gasket (10) are bonded with respectively in the U-shaped mounting groove (8)；
The hatchcover (2) has been arranged circumferentially sealing ring (11) at the position of U-shaped mounting groove (8), when the hatchcover (2) and bottom
During seat (1) connection, the sealing ring (11) keeps sealing with the pedestal (1).
4. external helicopter short limb floating drum cabin according to claim 3, it is characterised in that：Second gasket (10) edge
The long side of hatchcover (2) is symmetrical arranged, and quantity is much smaller than the first gasket (9).
5. external helicopter short limb floating drum cabin according to claim 3, it is characterised in that：First gasket (9) and
Second gasket (10) is provided with the U-type groove of identical bore；
Second gasket (10) extends out to form a circular arc in its U-type groove blind end, and the arc radius is more than its U-type groove opening
The radius at end.
6. external helicopter short limb floating drum cabin according to claim 5, it is characterised in that：Second gasket (10)
Circular arc is provided with bushing (12)；
The outer diameter of the bushing (12) is more than its arc radius, i.e., bushing (12), which squeezes, is mounted on the circular arc.
7. external helicopter short limb floating drum cabin according to claim 6, it is characterised in that：The U of first gasket (9)
The first guard ring (13) is provided in type groove, screw (14) is connected through the first guard ring (13) with the plate nut (15) of pedestal；
Bushing (12) is respectively arranged in the U-type groove of second gasket (10), first guard ring (13) is socketed in bushing
(12) it is internal, washer is provided between the two, and the screw (14) passes through the plate nut (15) of the first guard ring (13) and pedestal
Connection.
8. external helicopter short limb floating drum cabin according to claim 1, it is characterised in that：
The pedestal (1) is provided with floating drum connection band insertion hole (16), and protection is provided in floating drum connect band (6) through hole
Adhesive tape (17).
9. external helicopter short limb floating drum cabin according to claim 1, it is characterised in that：
Boss (18) is provided at pedestal (1) center, the boss (18) is provided with loading line by hole (19), in institute
Loading line is stated by setting the second guard ring (20) in hole (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711255855.9A CN108100242B (en) | 2017-12-03 | 2017-12-03 | A kind of external helicopter short limb floating drum cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711255855.9A CN108100242B (en) | 2017-12-03 | 2017-12-03 | A kind of external helicopter short limb floating drum cabin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108100242A true CN108100242A (en) | 2018-06-01 |
| CN108100242B CN108100242B (en) | 2018-12-11 |
Family
ID=62209107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711255855.9A Active CN108100242B (en) | 2017-12-03 | 2017-12-03 | A kind of external helicopter short limb floating drum cabin |
Country Status (1)
| Country | Link |
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| CN (1) | CN108100242B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383815A (en) * | 2018-11-21 | 2019-02-26 | 航宇救生装备有限公司 | It is a kind of pneumatically to unlock mechanism of opening the cabin |
| CN109911217A (en) * | 2018-11-21 | 2019-06-21 | 航宇救生装备有限公司 | A kind of fastening structure of air bag rigidity package |
| CN111222268A (en) * | 2019-12-04 | 2020-06-02 | 中国直升机设计研究所 | Helicopter short-wing overwater forced landing strength calculation method provided with emergency floating system |
| 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 |
| CN113697093A (en) * | 2021-08-27 | 2021-11-26 | 航宇救生装备有限公司 | Emergent buoyancy bag of second grade unblock formula helicopter |
| CN113928544A (en) * | 2021-11-19 | 2022-01-14 | 中国直升机设计研究所 | Helicopter underwater attitude control device |
| CN114180038A (en) * | 2021-11-19 | 2022-03-15 | 中国直升机设计研究所 | Emergent floating system flotation pontoon cabin of integrated form helicopter |
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| EP2778067A1 (en) * | 2013-03-15 | 2014-09-17 | Bell Helicopter Textron Inc. | Crash load attenuator for water ditching and floatation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383815A (en) * | 2018-11-21 | 2019-02-26 | 航宇救生装备有限公司 | It is a kind of pneumatically to unlock mechanism of opening the cabin |
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| CN111222268A (en) * | 2019-12-04 | 2020-06-02 | 中国直升机设计研究所 | Helicopter short-wing overwater forced landing strength calculation method provided with emergency floating system |
| CN111222268B (en) * | 2019-12-04 | 2022-10-18 | 中国直升机设计研究所 | Helicopter short-wing overwater forced landing strength calculation method provided with emergency floating system |
| 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 |
| CN113697093A (en) * | 2021-08-27 | 2021-11-26 | 航宇救生装备有限公司 | Emergent buoyancy bag of second grade unblock formula helicopter |
| CN113697093B (en) * | 2021-08-27 | 2023-12-12 | 航宇救生装备有限公司 | Two-stage unlocking helicopter emergency buoyancy bag |
| CN113928544A (en) * | 2021-11-19 | 2022-01-14 | 中国直升机设计研究所 | Helicopter underwater attitude control device |
| CN114180038A (en) * | 2021-11-19 | 2022-03-15 | 中国直升机设计研究所 | Emergent floating system flotation pontoon cabin of integrated form helicopter |
| CN113928544B (en) * | 2021-11-19 | 2023-04-21 | 中国直升机设计研究所 | Helicopter water-entering gesture control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108100242B (en) | 2018-12-11 |
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