CN206797772U - A kind of built-in folding airstair of aircraft airborne - Google Patents
A kind of built-in folding airstair of aircraft airborne Download PDFInfo
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- CN206797772U CN206797772U CN201720332140.8U CN201720332140U CN206797772U CN 206797772 U CN206797772 U CN 206797772U CN 201720332140 U CN201720332140 U CN 201720332140U CN 206797772 U CN206797772 U CN 206797772U
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- terraced
- airstair
- slide rail
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Abstract
The utility model discloses a kind of built-in folding airstair of aircraft airborne, the built-in airstair that folds of the aircraft airborne includes carriage assembly, horizontal segment component, upper terraced component, descending stair component and actuated lever assemblies.The carriage assembly is fixedly connected in fuselage compartment, the horizontal segment component is placed on carriage assembly horizontal segment slide rail, the upper terraced component and horizontal segment member hinges, the descending stair component and upper terraced member hinges, the actuated lever assemblies respectively with horizontal segment component, upper terraced component and descending stair member hinges.The beneficial effects of the utility model are：The built-in airstair that folds of the aircraft airborne may be mounted under airplane floor, realize that airstair linkage is stretched out expansion and folded to withdraw, it is used for upper and lower occupant and crew as airstair under deployed condition, fold and be hidden under retracted state in cabin below floor, automaticity is high, and transmission is accurate, simple operation, structural-load-carrying capacity is strong, is not take up personnel compartment space.
Description
Technical field
The utility model belongs to Airstairs of airplane field of structural design, and in particular to a kind of built-in folding of aircraft airborne is stepped on
Machine ladder.
Background technology
The airstair of aircraft is gone on or off the plane used equipment for occupant and crew, it is desirable to airstair Stability Analysis of Structures
Reliably, the safety of occupant and unit is ensured, space-consuming is few when also requiring to pack up, and deploys and to pack up operation smooth.It should stop
Ensure the safety that personnel go on or off the plane during machine, do not influence the normal flight of aircraft in flight again.
Existing Airstairs of airplane one kind is ground airstair, it is impossible to which random to carry, increase aircraft is to the supporting boarding in airport
The demand of ladder, increases the dependence to airport boarding facility, reduces the adaptability of aircraft；Although another airstair can be with
It is random to carry, but can not fold, space in cabin is taken after packing up, reduces space utilization rate in cabin, and easily cause danger.Therefore
The airborne built-in folding airstair for designing a kind of complete, reliable, convenient operation is necessary.
Utility model content
, can be with order to solve the above technical problems, the utility model provides a kind of built-in folding airstair of aircraft airborne
To complete the stretching expansion of airstair as needed and fold to withdraw, transmission is accurate, simple operation, and Stability Analysis of Structures is reliable during expansion,
Ensure the safety of machine and lower machine on occupant and unit；It is compact-sized when folding is packed up, it can be hidden in cabin below floor, save in cabin
Space.
Solves the built-in folding airstair of a kind of aircraft airborne in the utility model of above technical problem, its feature exists
In：Including carriage assembly, horizontal segment component and airstair component, airstair component is provided with upper terraced component, descending stair component and driving
Bar assembly；
The carriage assembly is fixedly connected with fuselage, and horizontal segment component is connected with carriage assembly, airstair component and water
Flat section component is connected；For horizontal segment component to sliding in or beyond carriage assembly, airstair component forms one with horizontal segment component
It is overall to sliding in or beyond carriage assembly；
The upper terraced member hinges are on horizontal segment component, and descending stair member hinges are on upper terraced component, actuated lever assemblies point
It is not hinged on horizontal segment component, upper terraced component and descending stair component, upper terraced component drives descending stair component exhibition by actuated lever assemblies
Open or fold, realize the stretching expansion for folding airstair component or fold and withdraw.
In the utility model, the carriage assembly includes bracket left frame, the right frame of bracket, bracket front frame, device carrier, driving
Device, clutch, ball-screw and slide rail；
The driver and clutch are located on device carrier, and ball-screw is fixed on device carrier and bracket front frame,
Driver is connected with ball-screw by clutch；Slide rail is two, is respectively provided in bracket left frame and the right frame of bracket；Clutch
Device can connect or disconnect motor and ball-screw.
The horizontal segment component is connected with carriage assembly, and horizontal segment component is placed on the slide rail of carriage assembly, is passed through
Ball-screw is connected with carriage assembly.
In prioritization scheme, the slide rail is provided with horizontal segment slide rail and upper terraced slide rail, horizontal segment slide rail are horizontally set on bracket
Left frame bracket is left, on the right frame of bracket, and upper terraced slide rail is located above horizontal segment slide rail, and upper terraced slide rail front end is in bracket left frame, bracket
At right frame front end obliquely, rear end is parallel with horizontal segment slide rail；
The horizontal segment component slides on the horizontal segment slide rail of carriage assembly, upper ladder of the upper terraced component along carriage assembly
Slide rail slides.Horizontal segment slide rail also acts as the effect of support level section component simultaneously.
In further prioritization scheme, the carriage assembly is provided with driver rack, leading screw after-poppet and leading screw fore-stock, silk
Thick stick after-poppet and driver rack are located on device carrier, and leading screw fore-stock is located in bracket front frame, and ball-screw passes through leading screw
After-poppet and leading screw fore-stock are fixed on device carrier and bracket front frame, and driver is fixed on equipment support by driver rack
On frame.
The horizontal segment component includes horizontal segment left frame, horizontal segment pedal, the right frame of horizontal segment, feed screw nut support and leading screw
Nut, horizontal segment left frame and the right frame of horizontal segment are separately fixed at horizontal segment pedal both sides, and feed screw nut is fixed on feed screw nut branch
On frame, feed screw nut support is connected on horizontal segment pedal；Horizontal segment left frame side and horizontal segment right frame side face are additionally provided with arc
Groove, horizontal segment left frame bottom and the right frame bottom of horizontal segment are provided with horizontal segment pulley, reduce horizontal segment component in the left and right frame water of bracket
The frictional force slided on flat section slide rail.
The horizontal segment component is connected with carriage assembly, is connected by feed screw nut with the ball-screw of carriage assembly
Connect；Ball-screw on carriage assembly promotes feed screw nut, so as to promote horizontal segment along ballscrew shaft to back and forth movement.
The horizontal segment component slides on the horizontal segment slide rail of carriage assembly, arc of the upper terraced component along horizontal segment component
Shape groove slides, while is slided along the upper terraced slide rail of carriage assembly.
The upper terraced component includes upper terraced left frame, upper terraced pulley, the right frame of upper ladder and pedal, and pedal is located at terraced left frame and upper
Between the right frame of ladder, upper terraced pulley is located at terraced left frame upper end and the right frame upper end of upper ladder, and upper terraced pulley passes through horizontal segment component
Deep-slotted chip breaker, slide along deep-slotted chip breaker, while slided in the upper terraced slide rail of carriage assembly, so as to drive upper terraced component around with level
The pin joint of section component rotates.
Upper terraced component is hinged with horizontal segment, and upper terraced component can rotate around pin joint.
The descending stair component includes descending stair left frame, the right frame of lower body and pedal, pedal be located at descending stair left frame and the right frame of descending stair it
Between, descending stair component is hinged as single piece and upper terraced component, and descending stair component rotates around with the pin joint of upper terraced component.
Descending stair component upper end is hinged with upper terraced component lower end, and descending stair component can rotate around pin joint.
The actuated lever assemblies include drive rod I, drive rod II and drive rod III, the upper end of drive rod I and horizontal segment component
It is be hinged among frame articulation, lower end and drive rod II；Be hinged, lower end and driving among the upper end of drive rod II and upper terraced component framework
The upper end of bar III is hinged；It is be hinged among the lower end of drive rod III and descending stair component framework.Actuated lever assemblies driving folds airstair and realized
Stretch out expansion and fold and withdraw.
In the utility model, preferably, to avoid airstair from folding discontinuity, the actuated lever assemblies arrange
Two groups, each one group of left and right is hinged with the left and right frame of upper and lower terraced component respectively.
In the utility model, plane residing for the actuated lever assemblies and upper terraced component, descending stair component staggers respectively, or driving
Drive rod I in bar assembly, drive rod II, plane staggers respectively residing for drive rod III and upper terraced component, descending stair component, avoids folding
When produce structure interference.
The clutch is other clutches such as electromagnetic clutch, magnetic powder cluth, friction clutch and fluid clutch
Device.
The driver is motor, hydraulic motor or air pressure motor etc..
The beneficial effects of the utility model are：
The built-in airstair that folds of the aircraft airborne may be mounted under airplane floor, realize that the random of airstair is taken
Band, and then realize that airstair linkage is stretched out expansion and folded and withdraw, it is used for upper and lower occupant and machine as airstair under deployed condition
Group personnel, fold and be hidden under retracted state in cabin below floor, automaticity is high, and transmission is accurate, simple operation, structural bearing
Ability is strong, is not take up personnel compartment space, improves the aesthetic property and security of indoor environment.
The utility model can be applied on the airborne vehicles such as aircraft, can also be applied on vehicle.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of the utility model embodiment
Fig. 2 is the assembling schematic diagram of the utility model embodiment carriage assembly
Fig. 3 is the horizontal segment component, upper terraced component, descending stair component and actuated lever assemblies signal of the utility model embodiment
Figure
Fig. 4 is the bracket left frame horizontal segment slide rail of the utility model embodiment and upper terraced slide rail schematic diagram
Fig. 5 is the expansion or folding process intermediateness schematic diagram of the utility model embodiment
Fig. 6 is the view after the complete folding of the utility model embodiment is withdrawn
Fig. 7 is the expansion or folding process intermediateness schematic diagram of the utility model embodiment
Fig. 8 is the right mount structure schematic diagram of the utility model embodiment horizontal segment component
Reference：
100-carriage assembly, 200-horizontal segment component, 300-go up terraced component, 400-descending stair component, 500-drive rod
Component, 101-bracket left frame, 102-device carrier, 103-driver, 104-driver rack, 105-clutch,
106-leading screw after-poppet, 107-ball-screw, the right frame of 108-bracket, 109-bracket front frame, 110-leading screw fore-stock,
201-horizontal segment left frame, 202-horizontal segment pedal, the right frame of 203-horizontal segment, 204-feed screw nut support, 205-leading screw spiral shell
Mother, 206- deep-slotted chip breakers, 207- horizontal segment pulleys, 301-upper terraced left frame, 302-upper terraced pulley, the 303-upper right frame of ladder, 304-
Pedal, 401-descending stair left frame, the right frame of 402-descending stair, 501-drive rod I, 502-drive rod II, 503-drive rod III,
600- airstair components, 700- slide rails, 701- horizontal segment slide rails, the upper terraced slide rails of 702-
Embodiment
With reference to the accompanying drawings and examples and operation principle, the utility model is described in detail：
Embodiment 1
As shown in figure 1, folding airstair includes carriage assembly 100, horizontal segment component 200, upper terraced component 300, descending stair group
Part 400 and actuated lever assemblies 500.The carriage assembly 100 is fixedly connected with fuselage, and the horizontal segment component 200 is placed on
, can be along the slide rail back and forth movement on carriage assembly 100, the upper terraced component 300 and horizontal segment component 200 in carriage assembly 100
Be hinged, the descending stair component 400 is be hinged with upper terraced component 300, the actuated lever assemblies 500 respectively with horizontal segment component 200,
Upper terraced component 300 and descending stair component 400 are be hinged, realize the stretching expansion for folding airstair and fold and withdraw.
As shown in Fig. 2 the carriage assembly 100 is by bracket left frame 101, motor 103, clutch 105, ball-screw
107th, the right frame 108 of bracket, bracket front frame 109 form, the right frame 108 of bracket left frame 101, bracket and bracket front frame 109, equipment support
The framework that forms a whole of frame 102 is fixed on fuselage, and motor 103 is fixed on device carrier 102, ball-screw 107
It is fixed on device carrier 102 and bracket front frame 109, motor 103 is connected with ball-screw 107 by clutch 105, from
Clutch 105 can connect or disconnect motor 103 and ball-screw 107.As shown in figure 4, the right frame 108 of bracket left frame 101, bracket
On be provided with horizontal segment slide rail 701 and upper terraced slide rail 702, horizontal segment slide rail 701 also acts as support level section component 200 simultaneously
Effect, upper terraced slide rail 702 bracket left frame 101, the right frame 108 of bracket front end at obliquely, rear end and horizontal segment slide rail 701 are flat
OK.
As shown in figure 3, the horizontal segment component 200 is by horizontal segment left frame 201, horizontal segment pedal 202, the right frame of horizontal segment
203rd, feed screw nut support 204, feed screw nut 205 form, horizontal segment left frame 201, horizontal segment pedal 202 and the right frame of horizontal segment
203 form a whole frame, are placed on the bracket left frame 101 of carriage assembly 100, the horizontal segment slide rail 701 on the right frame 108 of bracket
On, it can be slided along horizontal segment slide rail 701.Feed screw nut 205 is fixed on feed screw nut support 204, and feed screw nut support 204 is solid
Be scheduled on horizontal segment pedal 202, i.e., at the lower surface of horizontal segment pedal 202, the ball-screw on the carriage assembly 100
107 promote feed screw nut 205, so as to promote horizontal segment component 200 along 107 axial back and forth movement of ball-screw.The horizontal segment
The right frame 203 of left frame 201, horizontal segment has the deep-slotted chip breaker 206 passed through for upper terraced pulley 302, the horizontal segment left frame 201, horizontal segment
The right bottom of frame 203 is provided with horizontal segment pulley 207.
As shown in figure 3, the upper terraced component 300 is by upper terraced left frame 301, the right frame 303 of upper ladder, upper terraced pulley 302 and steps on
Plate 304 forms, and upper terraced component 300 is be hinged with horizontal segment component 200, and upper terraced component 300 can rotate around pin joint, upper terraced left frame
301st, the right upper end of frame 303 of upper ladder is respectively provided with a upper terraced pulley 302, and upper terraced pulley 302 can be in the upper ladder in carriage assembly 100
Slided in track 702.
As shown in figure 3, the descending stair component 400 is made up of descending stair left frame 401, the right frame 402 of descending stair and pedal 304, under
The terraced upper end of component 400 is hinged with the upper terraced lower end of component 300, and descending stair component 400 can rotate around pin joint.
As shown in figure 3, the actuated lever assemblies 500 are by III 503 groups of drive rod I 501, drive rod II 502 and drive rod
Into the upper end of drive rod I 501 is be hinged with horizontal segment component 200, be hinged among lower end and drive rod II 502, on drive rod II 502
End is be hinged with upper terraced component 300, and lower end is hinged with the upper end of drive rod III 503, and the lower end of drive rod III 503 is cut with scissors with descending stair component 400
Connect.Respectively one group of arrangement, the driving folding airstair realization of actuated lever assemblies 500 stretch out expansion and fold withdrawal for left and right.
When airstair folds withdrawal：Motor 104 drives ball-screw 107 to rotate by clutch 105, so as to drive
Horizontal segment component 200 is along 107 axial inward movement of ball-screw, due to the upper terraced design feature of track 702, the upper terraced edge of pulley 302
When upper terraced track 702 slides inside, the upper terraced vertical direction position of pulley 302 along the deep-slotted chip breaker on horizontal segment component 200 it is continuous under
Drop, forces terraced component 300 to be rotated counterclockwise along with the pin joint of horizontal segment component 200, and drive rod I 501 pulls driving II 502 to make
Drive rod II 502 drives III 503 to pull descending stair group around the pin joint rotate counterclockwise with upper terraced component 300, and then by pulling
Part 400 makes descending stair component 400 around the pin joint rotate counterclockwise with upper terraced component 300, so as to realize the folding of upper descending stair component,
As shown in Figure 5.When upper terraced pulley 302 enters upper terraced 702 horizontal segment of slide rail, upper terraced component 300 and descending stair component 400 are complete
Fold in place.The airstair component 600 folded continues to withdraw toward in cabin in the presence of motor 103, until receiving completely
Return, clutch 105 disconnects, and motor stops, as shown in Figure 6.
Airstair stretches out expansion：Horizontal segment component 200 ball-screw 107 drive under along ball-screw 107 axially outward
Motion, Foldable airstair outward movment, when being moved obliquely after upper terraced pulley 302 moves to the upper turning of terraced slide rail 702,
Upper terraced component 300 rotates clockwise around the pin joint with horizontal segment component 200, and drive rod I 501 promotes drive rod II 502 around drive
Lever II 502 and the pin joint of upper terraced component 300 turn clockwise, by drive rod III 503 promote descending stair component 400 around with it is upper
The pin joint of terraced component 300 turns clockwise, so as to realize the expansion of upper terraced component 300, descending stair component 400.When upper terraced pulley
302 when moving to terraced 702 top of slide rail on carriage assembly 100, and upper descending stair is completely open to position, as shown in figure 1, clutch breaks
Open, motor 103 is stopped.
During electrical fault, clutch does not combine, and can be manually pulled out airstair until airstair is fully deployed in place or manually
Withdrawal airstair is completely retracted into position until airstair, so as to realize the manual expansion of airstair or folder function.
Embodiment 2
As shown in figure 1, folding airstair includes carriage assembly 100, horizontal segment component 200, upper terraced component 300, descending stair group
Part 400 and actuated lever assemblies 500.The carriage assembly 100 is fixedly connected with fuselage, and the horizontal segment component 200 is placed on
, can be along the slide rail back and forth movement on carriage assembly 100, the upper terraced component 300 and horizontal segment component 200 in carriage assembly 100
Be hinged, the descending stair component 400 is be hinged with upper terraced component 300, the actuated lever assemblies 500 respectively with horizontal segment component 200,
Upper terraced component 300 and descending stair component 400 are be hinged, realize the stretching expansion for folding airstair and fold and withdraw.
As shown in Fig. 2 the carriage assembly 100 is by bracket left frame 101, device carrier 102, motor 103, driver
Propped up before the right frame 108 of support 104, clutch 105, leading screw after-poppet 106, ball-screw 107, bracket, bracket front frame 109, leading screw
Frame 110 forms, and the right frame 108 of bracket left frame 101, bracket and bracket front frame 109, device carrier 102 framework that forms a whole are consolidated
It is scheduled on fuselage, motor 103 is fixed on device carrier 102 by driver rack 104, and ball-screw 107 passes through silk
Thick stick after-poppet 106, leading screw fore-stock 110 are fixed on device carrier 102 and bracket front frame 109, motor 103 and ball wire
Thick stick 107 is connected by clutch 105, and clutch 105 can connect or disconnect motor 103 and ball-screw 107.Such as Fig. 4 institutes
Show, be provided with horizontal segment slide rail 701 and upper terraced slide rail 702 on the right frame 108 of bracket left frame 101, bracket, horizontal segment slide rail 701 is same
When also act as the effect of support level section component 200, upper terraced slide rail 702 at the front end of the left and right frame of bracket obliquely, rear end with
Horizontal segment slide rail 701 is parallel.
As shown in figure 3, the horizontal segment component 200 is by horizontal segment left frame 201, horizontal segment pedal 202, the right frame of horizontal segment
203rd, feed screw nut support 204, feed screw nut 205 form, horizontal segment left frame 201, horizontal segment pedal 202 and the right frame of horizontal segment
203 form a whole frame, are placed on the bracket left frame 101 of carriage assembly 100, the horizontal segment slide rail 701 on the right frame 108 of bracket
On, it can be slided along horizontal segment slide rail 701.Feed screw nut 205 is fixed on feed screw nut support 204, and feed screw nut support 204 is solid
It is scheduled under horizontal segment pedal 202, the ball-screw 107 on the carriage assembly 100 promotes feed screw nut 205, so as to promote water
Flat section component 200 is along 107 axial back and forth movement of ball-screw.The right frame 203 of the horizontal segment left frame 201, horizontal segment has for upper ladder
The deep-slotted chip breaker that pulley 302 passes through, the right bottom of frame 203 of the horizontal segment left frame 201, horizontal segment are provided with pulley.
As shown in figure 3, the upper terraced component 300 is by upper terraced left frame 301, the right frame 303 of upper ladder, upper terraced pulley 302 and steps on
Plate 304 forms, and upper terraced component 300 is be hinged with horizontal segment component 200, and upper terraced component 300 can rotate around pin joint, upper terraced left frame
301st, the right upper end of frame 303 of upper ladder is respectively provided with a upper terraced pulley 302, and upper terraced pulley 302 can be in the upper ladder in carriage assembly 100
Slided in track 702.
As shown in figure 3, the descending stair component 400 is made up of descending stair left frame 401, the right frame 402 of descending stair and pedal 304, under
The terraced upper end bottom of component 400 and the upper terraced lower end lower hinge of component 300, descending stair component 400 can rotate around pin joint.
As shown in figure 3, the actuated lever assemblies 500 are by III 503 groups of drive rod I 501, drive rod II 502 and drive rod
Into the upper end of drive rod I 501 is be hinged with horizontal segment component 200, be hinged among lower end and drive rod II 502, on drive rod II 502
End is be hinged with upper terraced component 300, and lower end is hinged with the upper end of drive rod III 503, and the lower end of drive rod III 503 is cut with scissors with descending stair component 400
Connect.Respectively one group of arrangement, the driving folding airstair realization of actuated lever assemblies 500 stretch out expansion and fold withdrawal for left and right.
Plane residing for actuated lever assemblies 500 and upper terraced component 300, descending stair component 400 staggers respectively, or actuated lever assemblies
Drive rod I 501 in 500, drive rod II 502, plane difference residing for drive rod III 503 and upper terraced component 300, descending stair component 400
Stagger, the interference of structure is produced when avoiding folding.
When airstair folds withdrawal：Motor 104 drives ball-screw 107 to rotate by clutch 105, so as to drive
Horizontal segment component 200 is along 107 axial inward movement of ball-screw, and due to upper terraced track structure feature, upper terraced pulley 302 is along upper ladder
When track slides inside, the upper terraced vertical direction position of pulley 302 constantly declines along the chute on horizontal segment component 200, forces
Terraced component 300 rotates counterclockwise along with the pin joint of horizontal segment component 200, and drive rod I 501 pulls driving II 502 to make drive rod II
502 turn clockwise around the pin joint with upper terraced component 300, and then by pulling the pulling descending stair of driving III 503 component 400 to make
Descending stair component 400 turns clockwise around the pin joint with upper terraced component 300, so as to realize the folding of upper descending stair component.When upper ladder
When pulley 302 enters terraced 702 horizontal segment of slide rail, upper terraced component 300 folds in place completely with descending stair component 400.Fold
Airstair component continue to withdraw toward in cabin in the presence of motor 103, until completely withdraw, clutch disconnect, motor
Stop.
Airstair stretches out expansion：Horizontal segment component 200 ball-screw 107 drive under along ball-screw 107 axially outward
Motion, Foldable airstair outward movment, when being moved obliquely after upper terraced pulley 302 moves to the upper turning of terraced slide rail 702,
Upper terraced component 300 rotates clockwise around the pin joint with horizontal segment component 200, and drive rod I 501 promotes drive rod II 502 around drive
The pin joint rotate counterclockwise of lever II 502 and upper terraced component 300, by drive rod III 503 promote descending stair component 400 around with it is upper
The pin joint rotate counterclockwise of terraced component 300, so as to realize the expansion of upper terraced component 300, descending stair component 400.When upper terraced pulley
302 when moving to terraced 702 top of slide rail on carriage assembly 100, and upper descending stair is completely open to position, as shown in fig. 7, clutch breaks
Open, motor is stopped.
During electrical fault, clutch does not combine, and can be manually pulled out airstair until airstair is fully deployed in place or manually
Withdrawal airstair is completely retracted into position until airstair, so as to realize the manual expansion of airstair or folder function.
The built-in operation principle for folding airstair of aircraft airborne in the utility model：
(1) after clutch combines, driver drives ball screw turns by clutch；
(2) ball-screw promotes feed screw nut along ballscrew shaft to back and forth movement, and then drives horizontal segment component holding in the palm
Along ballscrew shaft to back and forth movement on horizontal segment slide rail on frame component；
(3) when airstair folds withdrawal：Horizontal segment component under ball-screw drive along ballscrew shaft to inward movement,
Due to the upper terraced track structure feature on carriage assembly, upper terraced pulley along upper terraced track toward cabin in when sliding, upper terraced pulley position
Constantly decline along the chute on horizontal segment component, force terraced component to be rotated up along the pin joint with horizontal segment component, drive
Bar I pulls driving II to make drive rod II around the pin joint rotate counterclockwise with upper terraced component, and then by pulling driving III to pull
Descending stair component makes descending stair component around the pin joint rotate counterclockwise with upper terraced component, so as to realize the folding of upper descending stair component.When
When upper terraced pulley enters terraced slide rail horizontal segment, upper descending stair component folds in place completely.The airstair component folded is driving
Continue to withdraw toward in cabin in the presence of dynamic motor, until withdrawing completely, clutch disconnects, and motor stops.
(4) airstair stretches out expansion：Horizontal segment component axially moves out under ball-screw drive along ball-screw, band
It is dynamic to fold airstair outward movment, when upper terraced pulley motion is moved obliquely to Shang Ti slide rails corner, upper terraced component around with
The pin joint of horizontal segment component rotates down, and drive rod I promotes drive rod II suitable around the pin joint of drive rod II and upper terraced component
Hour hands rotate, and promote descending stair component to be turned clockwise around the pin joint with upper terraced component by drive rod III, so as to realize up and down
The expansion of terraced component.When upper terraced pulley motion is to terraced rail tips on carriage assembly, upper descending stair is completely open to position, clutch
Disconnect, motor is stopped.
(5) during electrical fault, clutch does not combine, and can be manually pulled out airstair until airstair is fully deployed in place or hand
Dynamic withdrawal airstair is completely retracted into position until airstair, so as to realize the manual expansion of airstair or folder function.
Clutch in above example can be electromagnetic clutch, magnetic powder cluth, friction clutch and fluid power clutch
Other clutches such as device, driver can be motor, hydraulic motor or air pressure motor etc..
The utility model is not limited to above-mentioned embodiment for those skilled in the art, is provided in the utility model
In category, the addition and replacement of technical characteristic are carried out, belongs to the scope of protection of the utility model.
Claims (9)
- A kind of 1. built-in folding airstair of aircraft airborne, it is characterised in that：Including carriage assembly (100), horizontal segment component (200) and airstair component (600), airstair component (600) are provided with upper terraced component (300), descending stair component (400) and drive rod Component (500)；The carriage assembly (100) is fixedly connected with fuselage, and horizontal segment component (200) is connected with carriage assembly (100), boarding Terraced component (600) is connected with horizontal segment component (200)；Horizontal segment component (200) slides to carriage assembly (100) is inner or outer, Airstair component (600) forms an entirety to slip in or beyond carriage assembly (100) with horizontal segment component (200)；The upper terraced component (300) is hinged on horizontal segment component (200), and descending stair component (400) is hinged on terraced component (300) On, actuated lever assemblies (500) are respectively hinged on horizontal segment component (200), upper terraced component (300) and descending stair component (400), on Terraced component (300) is rotated by actuated lever assemblies (500) and folds or deploy with descending stair component (400).
- A kind of 2. built-in folding airstair of aircraft airborne according to claim 1, it is characterised in that：The carriage assembly (100) include bracket left frame (101), the right frame of bracket (108), bracket front frame (109), device carrier (102), driver (103), Clutch (105), ball-screw (107) and slide rail (700)；The driver (103) and clutch (105) are located on device carrier (102), and ball-screw (107) is fixed on equipment support On frame (102) and bracket front frame (109), driver (103) is connected with ball-screw (107) by clutch (105)；Slide rail (700) it is two, is respectively provided in bracket left frame (101) and the right frame of bracket (108)；The horizontal segment component (200) is connected with carriage assembly (100), and horizontal segment component (200) is placed on carriage assembly (100) on slide rail, it is connected by ball-screw (107) with carriage assembly (100).
- A kind of 3. built-in folding airstair of aircraft airborne according to claim 2, it is characterised in that：The slide rail (700) horizontal segment slide rail (701) and upper terraced slide rail (702) are provided with, horizontal segment slide rail (701) is horizontally set on bracket left frame (101), on the right frame of bracket (108), upper terraced slide rail (702) is located above horizontal segment slide rail (701), upper terraced slide rail (702) front end At bracket left frame (101), the right frame of bracket (108) front end obliquely, rear end is parallel with horizontal segment slide rail；The horizontal segment component (200) is slided on horizontal segment slide rail (701), and upper terraced component (300) is along upper terraced slide rail (702) Slide.
- A kind of 4. built-in folding airstair of aircraft airborne according to Claims 2 or 3, it is characterised in that：The bracket Component (100) is provided with driver rack (104), leading screw after-poppet (106) and leading screw fore-stock (110), leading screw after-poppet (106) It is located at driver rack (104) on device carrier (102), leading screw fore-stock (110) is located in bracket front frame (109), ball Leading screw (107) is fixed on device carrier (102) and bracket front frame by leading screw after-poppet (106) and leading screw fore-stock (110) (109) on, driver (103) is fixed on device carrier (102) by driver rack (104).
- A kind of 5. built-in folding airstair of aircraft airborne according to claim 1, it is characterised in that：The horizontal segment group Part (200) includes horizontal segment left frame (201), horizontal segment pedal (202), the right frame of horizontal segment (203), feed screw nut support (204) With feed screw nut (205), horizontal segment left frame (201) and the right frame of horizontal segment (203) are separately fixed at horizontal segment pedal (202) two Side, feed screw nut (205) are fixed on feed screw nut support (204), and feed screw nut support (204) is connected in horizontal segment pedal (202) on；Horizontal segment left frame (201) side and the right frame of horizontal segment (203) side are additionally provided with deep-slotted chip breaker (206), horizontal segment left frame (201) bottom and the right frame of horizontal segment (203) bottom are provided with horizontal segment pulley (207)；The horizontal segment component (200) is connected with carriage assembly (100), passes through feed screw nut (205) and carriage assembly (100) Ball-screw (107) be connected；The horizontal segment component (200) is slided on the horizontal segment slide rail of carriage assembly (100), and upper terraced component (300) is along arc Shape groove (206) slides, while is slided along the upper terraced slide rail (702) of carriage assembly (100).
- A kind of 6. built-in folding airstair of aircraft airborne according to claim 1 or 5, it is characterised in that：The upper ladder Component (300) includes upper terraced left frame (301), upper terraced pulley (302), the upper right frame of ladder (303) and pedal (304), pedal (304) and set Between upper terraced left frame (301) and the upper right frame of ladder (303), upper terraced pulley (302) is located at terraced left frame (301) upper end and upper ladder is right Frame (303) upper end, deep-slotted chip breaker (206) of the upper terraced pulley (302) along horizontal segment component (200) slide, while in carriage assembly (100) slided in, so as to drive upper terraced component (300) to be rotated around with the pin joint of horizontal segment component (200).
- A kind of 7. built-in folding airstair of aircraft airborne according to claim 1, it is characterised in that：The descending stair component (400) include descending stair left frame (401), the right frame of descending stair (402) and pedal (304), pedal (304) be located at descending stair left frame (401) and Between the right frame of descending stair (402), descending stair component (400) is hinged as single piece with upper terraced component (300), descending stair component (400) Rotated around with the pin joint of upper terraced component (300).
- A kind of 8. built-in folding airstair of aircraft airborne according to claim 1, it is characterised in that：The group of drive rods Part (500) includes drive rod I (501), drive rod II (502) and drive rod III (503), drive rod I (501) upper end and horizontal segment It is be hinged among component (200) frame articulation, lower end and drive rod II (502)；Drive rod II (502) upper end and upper terraced component (300) be hinged among framework, lower end and drive rod III (503) upper end are hinged；Drive rod III (503) lower end and descending stair component (400) it is be hinged among framework；Preferably, the actuated lever assemblies are two groups.
- A kind of 9. built-in folding airstair of aircraft airborne according to claim 2, it is characterised in that：The driver (103) it is motor, hydraulic motor or air pressure motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332140.8U CN206797772U (en) | 2017-03-31 | 2017-03-31 | A kind of built-in folding airstair of aircraft airborne |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332140.8U CN206797772U (en) | 2017-03-31 | 2017-03-31 | A kind of built-in folding airstair of aircraft airborne |
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| Publication Number | Publication Date |
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| CN206797772U true CN206797772U (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720332140.8U Expired - Fee Related CN206797772U (en) | 2017-03-31 | 2017-03-31 | A kind of built-in folding airstair of aircraft airborne |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177795A (en) * | 2018-02-11 | 2018-06-19 | 江苏恒铭达航空设备有限公司 | Auto-folder airstair with safety structure |
| CN108501988A (en) * | 2018-03-20 | 2018-09-07 | 鲁东大学 | It is exclusively used in the books carrier in library |
| CN110179291A (en) * | 2019-05-14 | 2019-08-30 | 奇瑞商用车（安徽）有限公司 | A kind of sales cart bazaar sale counter |
-
2017
- 2017-03-31 CN CN201720332140.8U patent/CN206797772U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177795A (en) * | 2018-02-11 | 2018-06-19 | 江苏恒铭达航空设备有限公司 | Auto-folder airstair with safety structure |
| CN108177795B (en) * | 2018-02-11 | 2024-01-23 | 江苏恒铭达航空设备有限公司 | Automatic folding boarding ladder with safety structure |
| CN108501988A (en) * | 2018-03-20 | 2018-09-07 | 鲁东大学 | It is exclusively used in the books carrier in library |
| CN110179291A (en) * | 2019-05-14 | 2019-08-30 | 奇瑞商用车（安徽）有限公司 | A kind of sales cart bazaar sale counter |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20200331 |