CN104921878A

CN104921878A - Omnidirectional electric wheelchair

Info

Publication number: CN104921878A
Application number: CN201510290399.6A
Authority: CN
Inventors: 胡钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-10
Filing date: 2015-06-01
Publication date: 2015-09-23
Anticipated expiration: 2035-06-01
Also published as: CN104921878B

Abstract

The invention discloses an omnidirectional electric wheelchair and relates to an indoor-type electric wheelchair. Different from an existing integral-type shaft-fixed electric wheelchair, the omnidirectional electric wheelchair is characterized in that a separated-type movable-shaft hinged driving structure is adopted, the chassis of a revolving chair and a lifting shaft are taken as a connecting device to have the six-legged steel pipe chair and an intelligence-driven wheel-hub type motor connected, horizontal traction force of two electric wheels is transmitted to six universal casters on the base, the independent-control electric wheels are capable of optionally revolving in situ by 360 degrees around the lifting shaft, revolving of a framework is avoided during omnidirectional motion of the wheelchair, movement of the entire wheelchair is not needed during revolving of the framework, the height-adjustable wheelchair and a hexagonal chair circle in design conform to the human body engineering principle, stability and trafficability of the hexagonal-prism type framework structure is first-rate, and the electric wheelchair is small in folding size and easy to carry and transport. The simple geometric profile is highly rich in visual sense of beauty and contains human connotation, and the electric wheelchair is a product produced by complement of a traditional classic chair with modern precision machinery and intelligent numerical-control technology. The electric wheelchair is a good helper to those inconvenient to walk and a universal perfect moving seat for common people.

Description

Omnidirectional's electric wheelchair

Technical field: the present invention relates to a kind of indoor type electric wheelchair

Background technology: existing electric wheelchair is monoblock type fixed axis armchair, most chair body length exceedes width, seat is placed between diaxon, no matter be rear wheel drive variety, front wheel driving ejector half or middle drive, rigidly connected when taking turns axle steer chair body also to turn to thereupon, with one-sided driving wheel for needing certain radius of turn time turning in the center of circle, for ease of clearing the jumps and preventing from toppling over the auxiliary universal wheel and anti-tip wheel that also must configure large footpath, cause whole wheelchair to take up space and become large, larger activity space is needed when turning to, when narrow and small crowded indoor place uses, manipulation reaction very easily collides other object comparatively slowly, relatively be adapted at the outdoor application of longer displacement.Consider from the aspect of aesthetic function, thing to sit on is also a kind ofly be placed in the art work static at home living environment, and the appearance forrns of existing electric wheel-chair vehicle differs greatly with it, runs counter to people and pursues vision and the dual happy sensation of soul.

Goal of the invention: the present invention is intended to overcome existing electric wheelchair mobility and the not good enough deficiency of sight when indoor use, not being only the walking-replacing tool that the not envoy that takes action provides comfortable, is also indoor moving thing to sit on that Healthy People provides a kind of static structure and dynamic structure all good.

Technical scheme: the present invention reaches goal of the invention by following measure, adopt and flexibly connect framework with the distinct separated movable axle of prior art, pulling the six sufficient Round-backed armchair of steel tube carrying movable castor by intelligent transmission base, realizing the all-around mobile pattern without the need to turning to or original position 360 degree of zero turn radius patterns.Chair framework part four identical H manage the chair frame component of hinged three groups of band movable castors, then live the positive six square bases of hexagon seat surface formation with a grafting H circumference of cannon bone; Hexagon chair circle is formed by take brain, arm holder, handrail, controller and saucer part that flexible joint connects; The height that height adjusting holes adjusts seat support is inserted with the night bolt that the multilayer insulating panel on three groups of chair frame components or seat board hexagonal are installed; The large limit of seat surface can be widened and change chair circle angle to two sideway swivel forelegs (lower section), with the height of height adjusting holes adjustable handrail; Backboard lower end is fixed with the latch below seat support; Six chair foots select universal caster wheel.Coupling arrangement by Revolving chair chassis, gas bar lifting shaft, adjustment gas bar height pull handle, chair body rotates latch with axle, collector ring (power supply between connection control device and motor and signal) forms, and driving device is two hub-type motors (Electric Motor Wheel) and the set of cells of the intelligent Universal direction controller manipulation of rocker-type.

Be different from the axle steer structure of rigidly connected Integral electric wheelchair, separate type omnidirectional electric wheelchair carries whole load by bearing-type seat and movable castor, obtains by hinged swivel chair lifting shaft the horizontal drag force that two Electric Motor Wheel provide.The mutually reverse vertical rotary of two motors can make horizontal stationary spindle 360 degree spend zero turn radius arbitrarily, and chair body can with CircOlectric to, seat towards also need not be consistent with the trend of Electric Motor Wheel time mobile, be similar to the The Cloud Terrace in the rotary gun turret of tank or movies-making railcar, without the need to turning in order to moved seat or moving in order to seat stearing, thus greatly improve the mobility of wheelchair, narrow and small indoor place can be passed in and out promptly.Pull the state that lands that lifting shaft handle can regulate movable castor and Electric Motor Wheel.The S-shaped flexibility of the gradient that arm holder handrail is formed with seat surface with back pad, backboard institute is all identical with round-backed armchair, the bending shape of six fold-type chair circle moulding and human body arm is substantially identical, fully meet comfortableness, stability and by property requirement, upper lower part of the body appropriateness ratio is adjustable, more meets base of principle of human engineering.Appearance forrns remains substantially the style moulding of traditional classical circle chair with back, the lines brevity and lucidity of six square frameworks, the sane steady and sure rule of harmonious line style, three dimensions perfect adaptation, concentrate straight line (vertical line, horizontal line, broken line, the oblique line) aesthetic feeling highlighting building geometry, arrange in pairs or groups the circular wheel of built-in rotation, the humanism connotation said of square-outside and round-inside is contained in the moulding that Fang Yuyuan combines.Can obtain the convolution space of maximum driving wheel and universal wheel with minimum floor space, the pitch difference of diagonal sum opposite side can take into account statement stability and arrow path by property requirement, and minimum radius of gyration and minimum commutation width are all significantly better than industry standard.Go out to carry or accumulating time can easily dismantle rapidly folding.Do not need when driving device, to be used as common round-backed armchair to use yet.

The mobility of indoor type electric wheelchair, agility and vision sight to be pushed to ultimate attainment by omnidirectional's electric wheelchair, are the Multifunctional seats in Smart Home, are not only applicable to people with disability and old people uses at home, are more suitable for Healthy People and use in multiple indoor public place.

Accompanying drawing illustrates:

Fig. 1 is omnidirectional of the present invention electric wheelchair chair frame structure front view.

Fig. 2 is the side view of omnidirectional of the present invention electric wheelchair chair frame structure.

Fig. 3 is omnidirectional of the present invention electric wheelchair chair frame structure diagonal view.

Fig. 4 is that omnidirectional of the present invention electric wheelchair takes foot pipe connection diagram.

Fig. 5 is omnidirectional of the present invention electric wheelchair seat and backboard schematic diagram.

Fig. 6 is that omnidirectional of the present invention electric wheelchair drives actuation means schematic diagram.

Detailed description of the invention: the design of omnidirectional's electric wheelchair takes into account practicality, artistry, manufacturability and economy demand, and single component light in weight is convenient to industrialized mass production.The correlation technique mature and reliable of hookup, controller and power base, industrial chain forms scale.Sieve seat and power base can be substituted easily, and same power base can pull different seat systems (seat of unlike material, function or size) seat same conversely also can join different power bases (wheel motor of different capacity or dissimilar set of cells).Installation method is simple, first the chair frame be folded is opened, backboard is inserted in the cylindrical void of seat support, limit socket is taken foot H tube edge and is inserted by the night bolt of seat support hexagonal in the height adjusting holes of chair frame, backboard fixed by the latch plugged below seat support, then lifting shaft gas bar inserted the Revolving chair chassis below seat support, circuit access collector ring, according to height ratio adjustment sitting face and the height of handrail of user, have take brain and headrest also can regulate suitable height simultaneously.Be sitting in subsequently round-backed armchair upwards pulls lifting shaft pull handle, to be driven take turns land equally with movable castor after loose one's grip.Auxiliary universal caster wheel can be selected synchronously to turn to pattern with drivewheel with the latch on Revolving chair chassis.

Claims

1. the Static and dynamic structural design of omnidirectional's electric wheelchair.Omnidirectional's electric wheelchair adopts separate type to pull drive mechanism, form by being with the steel pipe chair frame of universal caster wheel, Revolving chair chassis lifting shaft and intelligent drive device, chair body and movable castor carry whole load, the gentle bar lifting shaft of hinged Revolving chair chassis serves as coupling arrangement, the horizontal drag force of intelligent drive device is passed to the seat self not having power set, the center of gravity of seat, lifting shaft and driving device is on same axis, heavier set of cells and the center of gravity of Electric Motor Wheel are in low level, are conducive to improving wheelchair statement stability and landing property of wheel.The Electric Motor Wheel of lifting shaft both sides independent operation makes stationary spindle horizontal direction 360 degree spend zero turn radius arbitrarily by forward and reverse vertical rotary respectively, and radius of turn is zero.Existing electric wheelchair is directed in movement, and the movement locus of formation is curve, and omnidirectional's electric wheelchair is then move after first orientation in position again, and movement locus is all straight line.Select chair body whether with lifting shaft rotation mode by the latch on Revolving chair chassis below seat support.Chair body and power base portion can be substituted as required easily.

2. the major technique forming independent claims (1) is the structural design of wheel chair frame system.Use for reference shaping style and the mechanical structure of Chinese style classical thing to sit on sieve chair, the body frame of round-backed armchair circular upper part and square lower part is made into the hexagonal prism type framework that mechanical structure is more stable, circular arc chair circle is changed into the hexagon chair circle similar with arm curved position, connects with universal joint and take brain, arm holder, handrail and controller etc.Reverse foreleg (lower section) the large limit of seat surface can be made to widen to both sides and change chair circle angle, utilize the pitch difference of orthohexagonal diagonal sum opposite side bottom chair frame to guarantee stability and by property index, reserve maximum convolution space by minimum floor space to driving wheel and universal caster wheel.The activity chair frame flexibly connected with H pipe can fold easily like armchair, and the little transport that is easy to carry of the part dimension after point unfolding, the Height Adjustable design of seat support and chair circle meets base of principle of human engineering.The lines of the hexagonal round-backed armchair of square-outside and round-inside form to highlight builds the brief straight line (vertical line, horizontal line, broken line, oblique line) of geometry and curve (geometrical curve) aesthetic feeling, contains the humanism connotation said of circumference.

3. the key Design forming independent claims (1) works as coupling arrangement with the gentle bar lifting shaft in chassis of swivel chair.The horizontal drag force of Electric Motor Wheel is passed to body frame, hinged lifting shaft rotates along with intelligent drive device, and the chair body of pulling on lift shaft can turn to thereupon, wheelchair towards can be different from the moving direction of wheelchair, pull the degree that lands that lifting handle can regulate Electric Motor Wheel easily, lift shaft comes connection control device and driving device by dress collector ring.Select whether synchronously turn to pattern with axle with night bolt.

4. the core design forming independent claims (1) adopts the double wheel hub In-wheel-motor driving wheelchair of Intelligent control and gives its center turning function.Two wheel hub motors (the external rotor type permanent magnetism brush DC wheel motor) wheel independently manipulated can simultaneously forward and reverse vertical rotary with make horizontal axle 360 arbitrarily degree in-situ transesterification to, make the radius of turn of wheelchair be zero.Low flat chassis structure is convenient to install many devices such as lifting shaft and set of cells, reduces wheelchair center of gravity and improves stability in the large.