CN104382704B - Variable wheeled stair climbing wheelchair - Google Patents
Variable wheeled stair climbing wheelchair Download PDFInfo
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- CN104382704B CN104382704B CN201410690065.3A CN201410690065A CN104382704B CN 104382704 B CN104382704 B CN 104382704B CN 201410690065 A CN201410690065 A CN 201410690065A CN 104382704 B CN104382704 B CN 104382704B
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Abstract
The invention discloses a kind of variable wheeled stair climbing wheelchair, including frame, seat, and gear mechanism, described seat is located in described frame, described gear mechanism includes front-wheel and deformation type rear wheel system, described front-wheel is planetary gear, it is respectively arranged on the both sides of described frame front end, described deformation type rear wheel system is located at the both sides of described frame rear end, described deformation type rear wheel system includes: deformation type trailing wheel, it is located in a drive shaft, this deformation type trailing wheel includes drivewheel and driven pulley, relatively turnable and the described driven pulley of described drivewheel is connected, described drivewheel and driven pulley include wheel hub and around the three sections of circular arcs being located at this hub outside surface equal distribution.Cooperating of the variable wheeled stair climbing wheelchair of the present invention, employing deformation type trailing wheel and planetary front-wheel, improves stability and the safety of wheelchair, easy and simple to handle, it is simple to user operates.
Description
Technical field
The present invention relates to a kind of technical field of mechanical equipment, particularly relate to a kind of variable wheeled stair climbing wheelchair.
Background technology
Whole nation colony old, weak, sick, residual is populous, and climb building trip for outdoor and indoor has inconvenience more,
The demand of walking-replacing tool is increased day by day.In order to solve the realistic problem of these specific groups, current state
Inside and outside have employed the variable wheeled stair climbing wheelchair of various ways, including manually and electric stairs-climbing wheelchair,
There are crawler type, wheels formula, rail mounted etc..China Patent Publication No. is CN101703440A, entitled electricity
Dynamic stair climbing wheel chair, it is a kind of track type climbing-building wheelchair, uses caterpillar drive relatively steady, adaptively
Shape scope is wide;Chinese invention patent application 201110234169.X, entitled stair-climbing wheel chair, it is one
Planting wheeled stair-climbing wheel chair, front-wheel uses planetary gear, and trailing wheel uses single wheel, by motor driving wheel chair front end
Walking, simple in construction, move the most flexible.But current variable wheeled stair climbing wheelchair has some to lack
Falling into, such as track type climbing-building wheel chair sport is dumb, and volume is big, heavy, big to building body damaged condition,
Be not suitable for the walking of ordinarily resident's corridor;And wheels formula structure is complicated, price is high, poor stability;Rail mounted
Need dedicated track, inapplicable ordinary consumer;Some relies on star wheel type stair-climbing wheel chair to need people to push away, draw,
Poor stability, troublesome poeration;Some for the balanced design of chair during wheelchair stair activity exist many not
The defect of reality, and use motor to drive elevating mechanism to carry out adjustment, although feasible, but also exist flat
Weighing apparatus regulation reaction is insensitive, the defect of malfunction.
The information being disclosed in this background section is merely intended to increase the reason of the general background to the present invention
Solve, and be not construed as recognizing or imply in any form that this information structure is for this area general technology
Prior art well known to personnel.
Summary of the invention
It is an object of the invention to provide a kind of variable wheeled stair climbing wheelchair, thus overcome existing variable wheel
Formula stair climbing wheelchair volume and the shortcoming that quality is big, complex operation, stability of equilibrium are poor.
Another object of the present invention is to provide the wheel apparatus of a kind of variable wheeled stair climbing wheelchair, volume is little,
Little to stair damaged condition, and wheelchair can be made to operate steadily.
For achieving the above object, the invention provides a kind of variable wheeled stair climbing wheelchair, including frame,
Seat and gear mechanism, described seat is located in described frame, before described gear mechanism includes
Wheel and deformation type rear wheel system, described front-wheel is planetary gear, is respectively arranged on the both sides of described frame front end,
Described deformation type rear wheel system is located at the both sides of described frame rear end, it is characterised in that described deformation type
Rear wheel system includes: deformation type trailing wheel, and it is located in drive shaft, this deformation type trailing wheel include drivewheel and
Driven pulley, the relatively turnable and described drivewheel of described driven pulley is connected, and described driven pulley is rotating
Being located in described drive shaft, described drivewheel is fixed in described drive shaft, described drivewheel and driven
Wheel includes that three sections of circular arcs of this hub outside surface equal distribution, described driven pulley are located in wheel hub and cincture respectively
Wheel hub inside be provided with regulation gear;And discontinuous tooth bar belting, it includes flexible-belt and multiple
Transition travelling gear, the inner surface on described flexible-belt top be provided with certain intervals adjusting gear rack upstairs and under
Building adjusting gear rack, described regulation gear is positioned at described interval and with described adjusting gear rack upstairs and downstairs adjusts
Joint tooth bar cooperates, and the inner surface anterior at described flexible-belt is provided with transmission adjusting gear rack;The plurality of
Transition travelling gear is located in described frame and cooperates with described flexible-belt, when climbing building, described upstairs
Adjusting gear rack or downstairs adjusting gear rack engage with described regulation gear, drive the most described master of described driven pulley
Driving wheel makes three sections of circular arcs on described drivewheel and driven pulley overlap to rotation, when level walking,
Described adjusting gear rack upstairs or downstairs adjusting gear rack engage with described regulation gear, drive described driven pulley phase
Rotating described drivewheel makes three sections of circular arcs on described drivewheel and driven pulley mutually stagger, and forms one
Individual circle.
Preferably, in technique scheme, on described drivewheel, the two ends of every section of circular arc are equipped with transition
Arc section.
Preferably, in technique scheme, outside described driven wheel hub on be provided with multiple ball race,
One end of described drive hubs is provided with the multiple hoodle parts cooperated with described ball race, by hoodle part
With cooperating of ball race, relatively turnable for described drivewheel and described driven pulley is connected.
Preferably, in technique scheme, described hoodle part includes hoodle sheet and hoodle, described hoodle
Sheet is located in the tank in described drive hubs, and described hoodle extends outside this tank.
Preferably, in technique scheme, described variable wheeled stair climbing wheelchair actuating unit drives,
Described actuating unit includes: the first actuating unit, and described first actuating unit is in order to drive described seat
Lifting and the deformation of described deformation type trailing wheel;And second actuating unit, it is connected with described drive shaft,
In order to transport merit before and after driving described wheelchair.
Preferably, in technique scheme, described balance regulator includes: supporting seat, it is located at institute
State in frame;Load-carrying rocking bar, it is located at the lower section of described seat, and one end of described load-carrying rocking bar is with described
Support seat is flexibly connected;Lifting regulating mechanism, it includes lifter rack and the first gear, described lifting tooth
Bar upper end is flexibly connected with described load-carrying rocking bar, and described lifter rack is located on guide groove, and described guide groove is located at
In described frame, described first gear engages each other with described lifter rack, and described first gear is located at
On one power transmission shaft, described first power transmission shaft is connected with described first actuating unit.
Preferably, in technique scheme, described transmission adjusting gear rack engages each other with actively travelling gear,
Described active travelling gear is located on second driving shaft, and described second driving shaft passes through chain-wheel mechanism with described
First power transmission shaft connects;Described transition travelling gear is three, and two of which transition travelling gear is positioned at
The upper and lower side of described flexible-belt rear inner surface, it is anterior that another transition travelling gear is positioned at described flexible-belt
Inner surface.
Preferably, in technique scheme, also include amortisseur, its be located at the lower surface of described seat with
Between load-carrying rocking bar.
Preferably, in technique scheme, described drive shaft is provided with ratchet mechanism.
Preferably, in technique scheme, described front-wheel is three planetary gears.
Compared with prior art, there is advantages that
(1) the variable wheeled stair climbing wheelchair of the present invention, uses deformation type trailing wheel and the phase of planetary front-wheel
Coordinate mutually, the homeostasis regulation of seat horizontal state can be realized neatly, improve the stability of wheelchair
And safety, balance adjustment is quick on the draw, and easy and simple to handle, it is simple to operation.
(2) present invention uses deformation type trailing wheel, and this trailing wheel includes drivewheel and driven pulley, and driven pulley can phase
It is connected with described drivewheel rotate, when climbing building, three sections of circular arcs on drivewheel and three on driven pulley
Section circular arc overlaps, and the circular arc coincided together contacts with stair, and drive shaft is rotated further, drivewheel
With driven pulley also together with rotate, the circular arc of next-door neighbour contacts with adjacent stair face, the most constantly circulates, real
Xian Pa building function;When level walking, three sections of circular arcs on described drivewheel and three on described driven pulley
Section circular arc mutually staggers, and forms a circle, and drive shaft drives drivewheel and driven pulley to rotate, it is achieved wheelchair
Travel on level land.By this deformation type trailing wheel, it is achieved wheelchair is climbing building kinestate and horizontal movement state
Freely change, be wheelchair run the most steady.
(3) the circular arc two ends at deformation type trailing wheel drivewheel are provided with transition circle segmental arc, when climbing building, from one
Individual stair face moves to energy preferably transition during another stair face, reduces and climbs the power needed for building, simultaneously
Wheelchair is made to run the most steady.
Accompanying drawing explanation
Fig. 1 is the structural scheme of mechanism of the variable wheeled stair climbing wheelchair of the present invention;
Fig. 2 be wheelchair when level walking, deformation type trailing wheel and the structural representation of noncontinuity tooth bar band;
Fig. 3 is the exploded view of deformation type trailing wheel;
Fig. 4 is the structural representation that drivewheel and driven pulley are connected by hoodle sheet;
Fig. 5 is the structural scheme of mechanism of hoodle sheet;
Fig. 6 be wheelchair when level walking, the structural representation of noncontinuity tooth bar band.
Fig. 7 be upstairs time, deformation type trailing wheel and the structural representation of noncontinuity tooth bar band;
Fig. 8 be downstairs time, the structural representation of noncontinuity tooth bar band.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described in detail, it is to be understood that this
The protection domain of invention is not limited by detailed description of the invention.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " bag
Include " or its conversion as " comprising " or " including " etc. will be understood to comprise stated element or
Ingredient, and do not get rid of other element or other ingredient.
As shown in Figure 1 to Figure 2, take turns according to the variable wheeled stair climbing of one of the specific embodiment of the invention
Chair, including actuating unit 1, frame 2 and the seat 3 being located in this frame, also includes: balance adjustment fills
Putting 4, it is connected with seat 3 and actuating unit 1, the balance of seat during in order to regulate downstairs;And wheel
It is mechanism 5, comprising: two front-wheels 51, is respectively arranged on the both sides of frame 2 front end, two front-wheels 51
Being located at the two ends of the second drive shaft 8, this front-wheel 51 is three planetary gears, and three planetary gears include three vertically
Become 120 ° of uniform independent trundles, three trundles can have enough to meet the need along the second drive shaft 8, again can be along respectively
From little axle autobiography, and there is the angular adjustment of certain axial direction, in order to realize wheelchair direction of travel
Regulation.It is respectively provided on two sides with deformation type rear wheel system, this deformation type rear wheel system bag in the rear end of frame 1
Including: deformation type rear wheel system 52, it is located in a drive shaft 6, and this deformation type trailing wheel includes drivewheel 521
With driven pulley 522, driven pulley 522 is relatively turnable to be connected with drivewheel 521, and driven pulley 522 passes through
Bearing is located in drive shaft 6, when driven pulley 522 is driven, can rotate along drive shaft 6, actively
Wheel 521 is fixed in drive shaft 6 by key, has been located at ratchet mechanism 7, works as wheelchair in drive shaft 6
When climbing building, when needing to stop on stair, make wheelchair be fixed on stair by ratchet mechanism 7, improve
Safety.And discontinuous tooth bar belting 53, it is connected with balance adjustment 4, and discontinuous tooth bar band fills
Put 53 to be located in deformation type rear wheel system 52, in order to control drivewheel 521 and driven pulley 522 junction point
Conversion.Enable wheelchair climb building motion pacifically motion between freely change.
As shown in Figures 2 to 5, deformation type rear wheel system 52, it is located in a drive shaft 6, this deformation
Formula trailing wheel includes drivewheel 521 and driven pulley 522, and drivewheel 521 is relatively turnable with driven pulley 522
Connecting, driven pulley 522 is rotating to be located in drive shaft 6, and drivewheel 521 is fixed at drive shaft 6
On, driven pulley 522 includes driven wheel hub 5221 and around being located at this driven hub outside surface equal distribution
Three sections of circular arcs 5222, the angle between circular arc is 120 °, and the outer surface at every section of circular arc 5222 is provided with and rubs
Wiping material (such as rubber), one end of driven wheel hub 5221 is connected, at driven pulley with a regulation gear 54
It is provided around on outside hub 5221 being evenly distributed with six ball races 5223, the angle between ball race 5223
Degree is 60 °.Drivewheel 521 includes drive hubs 5211 and around being located at this drive hubs outer surface equalization
Three sections of circular arcs 5212 of distribution, the angle between circular arc is 120 °, at the outer surface of every section of circular arc 5212
Being provided with friction material (such as rubber), the two ends of every section of circular arc 5212 are equipped with transition circle segmental arc, are leading
The inner side of runner hub 5211 is corresponding around being uniformly provided with six ball races 5223 upper with outside driven wheel hub
Six tanks 5213, the angle between tank 5213 is 60 °, is provided with and bullet in each tank 5213
The hoodle part 523 that pearl groove 5223 cooperates, this hoodle part 523 includes hoodle sheet 5231 and hoodle 5232,
Hoodle sheet 5231 is located in the tank 5213 in drive hubs 5211, and hoodle 5232 is to this tank extension
Stretch.Driven pulley 522 is relatively turnable to be connected with drivewheel 521.When climbing building, by rotating regulation tooth
Wheel 54 rotation, thus drive driven pulley 522 to rotate, and drivewheel 521 is motionless, turning of driven pulley 522
Dynamic so that the hoodle 5232 on spring part 523 to be skidded off the ball race 5223 on driven pulley, treats drivewheel
On three sections of circular arcs 5212 when overlapping with three sections of circular arcs 5222 on driven pulley, regulation gear 54 stops
Spline is moved, and due to the restitution of hoodle sheet 5231, hoodle 5232 is ejected into again the hoodle on driven pulley
In groove 5223, the deformation of trailing wheel.When climbing building, three sections of circular arcs 5212 on drivewheel 521 and driven pulley
Three sections of circular arcs 5222 on 522 overlap, and the circular arc coincided together contacts with stair, and first drives
Axle 6 is rotated further, drivewheel and driven pulley also together with rotate, the circular arc of next-door neighbour connects with adjacent stair face
Touch, the most constantly circulate, and front-wheel is three planetary gears, being rotated further of the second drive shaft 8, planetary gear
On trundle contact with stair face, adjacent trundle contacts with adjacent stair face, by front-wheel and after
Wheel cooperate, it is achieved wheelchair climb building function.It is provided with friction material in arc-shaped surface, improves and climb
The safety of wheelchair during building.When level walking, by rotate regulation gear 54 rotate, thus drive from
Driving wheel 522 rotates, and drivewheel 521 is motionless, the rotation of driven pulley 522 so that by spring part 523
On hoodle 5232 skid off the ball race 5223 on driven pulley, three sections of circular arcs on drivewheel 5212 with from
Three sections of circular arcs 5222 on driving wheel mutually stagger, and form a circle, then with the trundle phase interworking of front-wheel
Closing, wheelchair can be walked on level land.
As it is shown in figure 1, in technique scheme, this actuating unit 1 includes: the first actuating unit 11,
It is connected with balance regulator 4, and the first actuating unit is in order to drive lifting and the deformation type of seat 3
The deformation of rear wheel system 52;And second actuating unit 12, itself and the first drive shaft 6 and the second drive shaft
8 connect, in order to drive climbing building and transporting merit on level land of wheelchair.
As it is shown in figure 1, in technique scheme, this balance regulator 4 includes: support seat 41, its
It is located in frame 2;Load-carrying rocking bar 42, it is located at the lower section of seat 3, and it is located at the lower surface of seat 3
And it is provided with amortisseur 9 between load-carrying rocking bar 42, is provided with swinging block 44 in the rear section of load-carrying rocking bar 42, carry
One end of weight rocking bar 42 is hinged with support seat 41;Lifting regulating mechanism 43, it includes lifter rack 431
With the first gear 432, lifter rack 431 top is hinged with the swinging block 44 on load-carrying rocking bar, lifter rack
431 are located in guide groove 433, when lifter rack 431 moves up and down, slide in guide groove 433, guide groove
433 are located in frame 2, the first gear 432 be located on the first power transmission shaft 45 and with lifter rack 431 phase
Engagement mutually, the first power transmission shaft 45 is connected with the first actuating unit 11, and when building climbed up by wheelchair, first moves
Force mechanisms 11 drives the first power transmission shaft 45 to rotate clockwise, and drives the first gear 432 to rotate, and drives and rises
Fall tooth bar 431 moves upward so that seat 3 stops driving after being up to the standard, the i.e. first actuating unit 11
Quit work.When wheelchair climbs down building, the first actuating unit 11 drives the first power transmission shaft 45 to turn counterclockwise
Dynamic, drive the first gear 432 to rotate, drive lifter rack 431 to move downward so that seat 3 reaches
Stopping after level driving, the i.e. first actuating unit 11 quits work.By the regulation of balance regulator,
In use, improve comfortableness and the safety of wheelchair stair-climbing.There is no concern that and fall from seat or send out
Raw skew.
As depicted in figs. 1 and 2, in technique scheme, this discontinuous tooth bar belting 53 includes: soft
Property band 531, the inner surface on this flexible-belt top is provided with adjusting gear rack 533 and downstairs adjusting gear rack 532 upstairs,
Adjusting gear rack 533 and downstairs have spacer between adjusting gear rack 532 upstairs, regulation gear 54 is positioned at flexibility
Band 531 is middle and is located at spacer, when wheelchair is in level walking, and regulation gear 54 and flexible-belt
531 do not contact, and the inner surface in flexible-belt 531 front portion is additionally provided with transmission adjusting gear rack 536, and transmission regulates
Tooth bar 536 engages each other with an active travelling gear 534, and actively the second transmission is located at by travelling gear 534
On axle 46, second driving shaft 46 is connected with the first power transmission shaft 45 by a chain-wheel mechanism 47;Three mistakes
Crossing travelling gear 535, two of which transition travelling gear is located in frame 2, is positioned at flexible-belt 531 rear portion
The upper and lower side of inner surface, another transition travelling gear is located in frame 2, is positioned at flexible-belt 531 anterior
The inner surface of lower section, i.e. the lower right of flexible-belt 531 inner surface, it is to avoid regulation gear 54 and flexible-belt 531
On do not have section of rack to contact.
Stair-climbing wheel chair workflow of the present invention is as follows:
As it is shown in fig. 7, wheelchair upstairs time, the first power transmission shaft 45 rotates clockwise, by chain-wheel mechanism 47
Second driving shaft 46 is driven to rotate clockwise, active travelling gear 534 up time on second driving shaft 46
Pin turns, and owing to active travelling gear 534 and transmission adjusting gear rack 536 engage, and then drives flexible-belt 531
Rotating clockwise, adjusting gear rack 533 engages with regulation gear 54 the most upstairs, drives regulation gear 54
Rotating, regulation gear 54 and driven pulley 522 are connected, and driven pulley 522 also rotates, hoodle part 523
On hoodle skid off the ball race 5223 on driven pulley 522, when driven pulley 522 is relative to drivewheel 521
Turn clockwise 60 ° time, regulation gear 54 depart from adjusting gear rack 533 upstairs, the first actuating unit
11 quit work, and seat 3 has been adjusted to horizontal level by lifter rack 431 the most, and train after deformation type
System 52 also completes deformation, and the circular arc of drivewheel 521 and driven pulley 522 is overlapping, starts to climb up building.
As in figure 2 it is shown, in time moving to level land upstairs, open the first actuating unit 11, drive the first biography
Moving axis 45 rotates counterclockwise, and then control flexible-belt 531 rotates counterclockwise, then regulation gear 54 is the most inverse
Hour hands rotate, and when driven pulley 522 rotates 60 ° counterclockwise relative to drivewheel 521, regulate gear 54
Departing from adjusting gear rack 533 upstairs, regulation gear 54 is positioned at adjusting gear rack 533 and downstairs regulate tooth upstairs
At spacer between bar 532, the drivewheel 521 of deformation type rear wheel system 52 and the circle of driven pulley 522
Arc mutually staggers and forms a circle, starts level land motion.
As shown in Figure 8, when going downstairs, drove for the first power transmission shaft 45 inverse time by the first actuating unit 11
Pin rotates, and flexible-belt 531 rotates counterclockwise, and the most downstairs adjusting gear rack 532 engages with regulation gear 54,
Drive regulation gear 54 to rotate, when driven pulley 522 rotates 60 ° counterclockwise relative to drivewheel 521, adjust
Joint gear 54 departs from adjusting gear rack 532 downstairs, and the first actuating unit 11 quits work, lifter rack
Seat 3 has been adjusted to horizontal level by 431 the most, and deformation type rear wheel system 52 also completes deformation, actively
The circular arc of wheel 521 and driven pulley 522 is overlapping, starts to climb down building.
As in figure 2 it is shown, in time downstairs moving to level land, open the first actuating unit 11, drive flexible-belt
531 rotate clockwise, driven pulley 522 relative to drivewheel 521 turn clockwise 60 ° time, regulate tooth
Wheel 54 departs from adjusting gear rack 532 downstairs, and regulation gear 54 is positioned at adjusting gear rack 533 and going downstairs upstairs
At spacer between adjusting gear rack 532, the drivewheel 521 of deformation type rear wheel system 52 and driven pulley 522
Circular arc mutually stagger formation one circle, start level land motion.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.
These descriptions are not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned
Teaching, can much change and change.The purpose selected exemplary embodiment and describe exists
In explaining the certain principles of the present invention and actual application thereof, so that those skilled in the art can be real
Now and utilize the various different exemplary of the present invention and various different selection and change.
The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (10)
1. a variable wheeled stair climbing wheelchair, including frame, seat and gear mechanism, described
Seat is located in described frame, and described gear mechanism includes front-wheel and deformation type rear wheel system, described before
Wheel is planetary gear, is respectively arranged on the both sides of described frame front end, and described deformation type rear wheel system is located at described
The both sides of frame rear end, it is characterised in that described deformation type rear wheel system includes:
Deformation type trailing wheel, it is located in drive shaft, and this deformation type trailing wheel includes drivewheel and driven pulley, institute
State the relatively turnable and described drivewheel of driven pulley to be connected, described driven pulley is rotating be located at described in drive
On moving axis, described drivewheel is fixed in described drive shaft, and described drivewheel and driven pulley include respectively
Three sections of circular arcs of this hub outside surface equal distribution are located in wheel hub and cincture, inside the wheel hub of described driven pulley
It is provided with regulation gear;And
Discontinuous tooth bar belting, it includes flexible-belt and multiple transition travelling gear, on described flexible-belt
The inner surface in portion is provided with adjusting gear rack upstairs and downstairs adjusting gear rack, the described regulation gear position of certain intervals
At described interval and with described adjusting gear rack upstairs and downstairs adjusting gear rack cooperate, in described flexibility
The inner surface of band front portion is provided with transmission adjusting gear rack;The plurality of transition travelling gear is located in described frame
And cooperate with described flexible-belt, when climbing building, described adjusting gear rack upstairs or downstairs adjusting gear rack and institute
State regulation gear engagement, drive described driven pulley relative to described drivewheel to rotating so that described drivewheel and
Three sections of circular arcs on driven pulley overlap, when level walking, and described adjusting gear rack upstairs or downstairs tune
Joint tooth bar engages with described regulation gear, drives described driven pulley to rotate so that described relative to described drivewheel
Three sections of circular arcs on drivewheel and driven pulley mutually stagger, and form a circle.
Variable wheeled stair climbing wheelchair the most according to claim 1, it is characterised in that described master
On driving wheel, the two ends of every section of circular arc are equipped with transition circle segmental arc.
Variable wheeled stair climbing wheelchair the most according to claim 1, it is characterised in that described from
It is provided with multiple ball race outside runner hub, is provided with in one end of described drive hubs and described ball race phase
The multiple hoodle parts coordinated mutually, can be relative by described drivewheel with cooperating of ball race by hoodle part
Rotate is connected with described driven pulley.
Variable wheeled stair climbing wheelchair the most according to claim 3, it is characterised in that described bullet
Pearl part includes that hoodle sheet and hoodle, described hoodle sheet are located in the tank in described drive hubs, described bullet
Pearl extends outside this tank.
Variable wheeled stair climbing wheelchair the most according to claim 1, it is characterised in that described variable
Wheeled stair climbing wheelchair actuating unit drives, and described actuating unit includes:
First actuating unit, described first actuating unit is in order to drive the lifting of described seat and described change
The deformation of form trailing wheel;And
Second actuating unit, it is connected with described drive shaft, in order to transport merit before and after driving described wheelchair.
Variable wheeled stair climbing wheelchair the most according to claim 5, it is characterised in that also include putting down
Weighing apparatus adjusting means, described balance regulator includes:
Supporting seat, it is located in described frame;
Load-carrying rocking bar, it is located at the lower section of described seat, one end of described load-carrying rocking bar and described support seat
It is flexibly connected;
Lifting regulating mechanism, it includes lifter rack and the first gear, and described lifter rack upper end is with described
Load-carrying rocking bar is flexibly connected, and described lifter rack is located on guide groove, and described guide groove is located in described frame,
Described first gear engages each other with described lifter rack, and described first gear is located on the first power transmission shaft,
Described first power transmission shaft is connected with described first actuating unit.
Variable wheeled stair climbing wheelchair the most according to claim 6, it is characterised in that described transmission
Adjusting gear rack engages each other with actively travelling gear, and described active travelling gear is located on second driving shaft,
Described second driving shaft is connected with described first power transmission shaft by chain-wheel mechanism;
Described transition travelling gear is three, after two of which transition travelling gear is positioned at described flexible-belt
The upper and lower side of portion's inner surface, another transition travelling gear is positioned at described flexible-belt front inner surface.
Variable wheeled stair climbing wheelchair the most according to claim 6, it is characterised in that also include subtracting
Shake device, between its lower surface being located at described seat and load-carrying rocking bar.
Variable wheeled stair climbing wheelchair the most according to claim 1, it is characterised in that described
Drive shaft is provided with ratchet mechanism.
Variable wheeled stair climbing wheelchair the most according to claim 1, it is characterised in that described
Front-wheel is three planetary gears.
Priority Applications (1)
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CN201410690065.3A CN104382704B (en) | 2014-11-25 | 2014-11-25 | Variable wheeled stair climbing wheelchair |
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CN201410690065.3A CN104382704B (en) | 2014-11-25 | 2014-11-25 | Variable wheeled stair climbing wheelchair |
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CN104382704B true CN104382704B (en) | 2016-12-07 |
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CN113397849B (en) * | 2021-07-21 | 2022-09-23 | 李磊 | Medical surgery is with wheelchair equipment of rehabilitating that can climb a slope |
CN114983694B (en) * | 2022-05-23 | 2023-02-17 | 吉林大学 | Self-adaptive multi-terrain electric stair climbing wheelchair |
CN115071330A (en) * | 2022-06-30 | 2022-09-20 | 北京航空航天大学 | Wheeled structure of passive form metamorphic wheel leg complex switching |
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US5158309A (en) * | 1990-12-06 | 1992-10-27 | Quigg Robert T | Stair climbing apparatus for collapsible wheelchair |
DE19955199C1 (en) * | 1999-11-16 | 2001-06-13 | Karlsruhe Forschzent | Stair-mounting electric wheel chair; has wheels arranged on wheel arms and mounted in body with hinged and rigid climbing arms to form wheel-climbing modules, where climbing arms are linearly guided |
CN201492595U (en) * | 2009-08-20 | 2010-06-02 | 李雨水 | Electric wheelchair capable of climbing stairs |
CN102319154B (en) * | 2011-08-16 | 2013-05-01 | 上海电机学院 | Stair climbing wheel chair |
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