CN205073156U - Stair wheelchair is climbed to wheel -track combination formula - Google Patents
Stair wheelchair is climbed to wheel -track combination formula Download PDFInfo
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- CN205073156U CN205073156U CN201520722102.4U CN201520722102U CN205073156U CN 205073156 U CN205073156 U CN 205073156U CN 201520722102 U CN201520722102 U CN 201520722102U CN 205073156 U CN205073156 U CN 205073156U
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Abstract
The utility model provides a stair wheelchair is climbed to wheel -track combination formula, including seat, track, wheelset, two direct current motor, seat levelling mechanism, wheel -track switching mechanism, wheel -track hybrid case, the manual electronic switching mechanism of track, control system etc. Wheel -track auto -change over device is located the wheelchair both sides, and every side all comprises hand worm, worm wheel, screw rod and rocker, and the front and back wheel is fixed respectively on two rockers. The seat levelling mechanism comprises worm gear, screw rod. Including crawler track mechanism and wheeled combination drive mechanism, wheel -track power switching device and shift fork in the wheel -track hybrid case. The manual electronic switching of track drives rack and pinion by the small motor and realizes. The utility model discloses can conveniently realize two kinds of traveling device's of wheel -track switching to it turns difficultly and the great problem of resistance in the level land walking to overcome unable cat ladder of ordinary wheelchair and track. Track and two kind wheeled move modes all can adopt motor drive and manpower drive to satisfy different demands.
Description
Technical field
This utility model relates to a kind of stair climbing wheelchair, particularly relates to a kind of wheel and carries out combination type stair climbing wheelchair.
Background technology
Wheelchair is essential for the crowd of lower limb inconvenience, in order to realize wheelchair stair activity, has occurred a few class stair climbing ladder wheelchair, mainly comprises planet gear type, crawler type, alternately brace type, wheel-track combined.
Planet wheel type stair-climbing Wheelchair structure is relatively simple, but center of gravity fluctuation is large when cat ladder, and comfort level is poor.
Crawler type stair climbing wheelchair is because the movement locus of center of gravity is close to a straight line parallel with step inclined-plane, and therefore stable movement, vibrates less.But resistance comparatively large and comparatively difficulty of turning when travelling on level land.
Alternately brace type stair climbing wheelchair takes into account cat ladder steadily and flat pavement running advantage comparatively flexibly, but complex structure, control overflow is higher.
Wheel-track combined stair climbing wheelchair not only cat ladder is steady, and flat pavement running is flexible, and control system is relatively easy, is better than other types stair climbing wheelchair to a certain extent.Therefore more researcher is had to be studied this side up.Such as French TopChair-s company H8 wheelchair adopts wheel to carry out combination exactly, but this wheelchair adopts four high power DC electric machines.Wherein two motor-driven caterpillar tracks, two motor driving wheel groups, involve great expense.Patent aspect, number of patent application is 201220565833.9, and the patent of " a kind of novel wheel-track combined electric wheelchair " by name is also adopt wheel to carry out combination, but manpower can not be adopted to drive.
Summary of the invention
The purpose of this utility model is in order to a kind of crawler belt traveling and wheels driving mode can conveniently switch, and manpower can be adopted to drive the wheel of crawler belt and wheels to carry out combination type stair climbing wheelchair.
The purpose of this utility model is achieved in that and comprises vehicle frame 60, seat 1, heel brace frame 15, heel brace 14, front-wheel 9, trailing wheel 4, crawler belt 13, track frame 11, seat levelling gear, wheel carries out switching mechanism, wheel carries out hybrid power box and control system, trailing wheel 4 is also provided with handwheel 27, it is characterized in that: described seat levelling gear comprises the rotating shaft 23 be arranged on below seat 1 front end, suit cylinder on the rotary shaft, the leveling leveling worm gear case 24 be connected with cylinder lower end, leveling worm gear in leveling leveling worm gear case 24 is set, with the leveling worm screw of leveling worm gear, the leveling leveling small handwheel 22 be connected with leveling worm end, the center of described leveling worm gear is provided with female thread and coordinates with the external screw thread of linkage levelling screw, the upper end of described linkage levelling screw is embedded in described cylinder, the lower end of described linkage levelling screw to be arranged on the fixed bar 62 that arranges between two track frames and can to rotate around fixed bar 62,
Described wheel carries out the both sides that switching mechanism is arranged on seat, each shoe switching mechanism of taking turns comprises the front-wheel rocking bar 17 be connected with front-wheel by support 8, the trailing wheel rocking bar 20 hinged with front-wheel rocking bar 17 end, the main wheel being arranged on trailing wheel rocking bar 20 end carries out switching sprocket wheel, and the trailing wheel that trailing wheel is coaxially arranged is carried out to switch sprocket wheel and be arranged on main wheel and is carried out and switch sprocket wheel and trailing wheel and carry out the wheel switched between sprocket wheel and carry out and switch chain 29, the centre position of front-wheel rocking bar 17 is connected with A-frame 10 by axle 16, A-frame 10 and vehicle frame 60 are connected, front-wheel rocking bar 17 is provided with to take turns to carry out with one end of the hinged rotating shaft of trailing wheel rocking bar 20 and switches small handwheel 19, front-wheel rocking bar 17 is fixed with to take turns to carry out with the other end of the hinged rotating shaft of trailing wheel rocking bar 20 and switches worm screw, wheel is carried out to switch worm screw and take turns to carry out and is switched worm gear, wheel shoe switching worm gear is arranged on wheel shoe by screw thread and switches on screw rod 2, lower end and the bracing frame 7 of wheel shoe switching screw rod 2 are connected, wheel is carried out and is switched worm screw and wheel and carry out and switch worm gear and form to take turns to carry out and switch worm gear case 18,
Described shoe hybrid power box 36 of taking turns has two and is separately positioned on the vehicle frame 60 between corresponding crawler belt and trailing wheel, each shoe hybrid power box of taking turns comprises the crawler haulage output shaft 49 and wheels transmission output shaft 43 that are controlled by shift fork 37, crawler haulage output shaft 49 is provided with the first sprocket wheel 32, the inner side of the rotating shaft of crawler belt 13 is provided with the second sprocket wheel 31, the first chain 38 is provided with between first sprocket wheel and the second sprocket wheel, wheels transmission output shaft 43 is provided with the 3rd sprocket wheel 6, the rotating shaft of trailing wheel 4 is provided with the 4th sprocket wheel 29, the second chain 5 is provided with between 3rd sprocket wheel 6 and the 4th sprocket wheel 29,
The handrail of seat is provided be connected with control system and control the operation control 21 of hybrid power box.
This utility model also comprises some architectural features like this:
1. also comprise two clutches that manpower drives pedrail mechanism and is arranged in the rotating shaft of crawler belt 13, described manpower drives pedrail mechanism to comprise the power transmission shaft 61 be arranged on vehicle frame 60, by there being the 5th sprocket wheel 26 on power transmission shaft 61, the outside of the rotating shaft of crawler belt 13 is provided with the 6th sprocket wheel 28, establish between 5th sprocket wheel 26 and the 6th sprocket wheel 28 and only have the 3rd chain 25, the end of described power transmission shaft 61 is provided with track drive small handwheel 3, and described power transmission shaft 61 is also provided with single direction ratchet ratchet.
Compared with prior art, the beneficial effects of the utility model are: this utility model adopts two high power DC electric machines to drive wheels and the crawler belt of both sides, crawler belt and wheels adopt the same power source, cost-saving and simplify control sequence, and can well realize various function.Specifically:
1, this utility model is in conjunction with the advantage of wheeled wheelchair and crawler belt wheelchair.
This utility model adopts wheels or the crawler belt of two direct current generator both sides respectively.Wheels comprise two universal wheels and two driving wheels, and two driving wheels are driven respectively by two motors, can be controlled straight line moving and the turning of wheelchair by the rotating speed controlling motor.Crawler belt wheelchair can realize cat ladder function and obstacle crossing function.
2, of the present utility model wheel carries out easy switching, steadily.
Shoe of taking turns of the present utility model switches by rotating small handwheel realization, and small handwheel is positioned at wheelchair both sides, and while rotating small handwheel, front and back wheel can synchronously slowly be elevated, and lifting process is steady, safety.
3, of the present utility model wheel carries out powershift conveniently, and adopt the same power source, save cost, space availability ratio is high.
This utility model utilizes shift fork to realize powershift, as long as slip shift fork, shift fork handle is embedded into wheel and carries out in the groove of hybrid power tank wall.Adopt same motor-driven caterpillar tracks and wheels, therefore greatly saved cost, and improve space availability ratio.
4, this utility model can adopt manpower to drive, and adapts to different situations.
This utility model can adopt manpower to drive, and electric power people force mode switches by very low-power machine driving, and small machine volume is little, and cost is low.
5, chair angle of the present utility model is easy to adjust.
Seat levelling gear of the present utility model also adopts worm-and-wheel gear, and adopt manual adjustments, volume is little, and cost is low, easy to adjust.
Accompanying drawing explanation
Forward direction axonometric drawing when Fig. 1 is this utility model employing wheels driving mode;
To axonometric drawing after when Fig. 2 is this utility model employing wheels driving mode;
Fig. 3 is worm gear case schematic diagram of the present utility model (carrying out switching mechanism part to take turns);
Fig. 4 is that of the present utility model wheel carries out hybrid power box sectional view;
Fig. 5 is that of the present utility model wheel carries out hybrid power box schematic three dimensional views;
Fig. 6 is the sectional view of crawler type electric manual switching device of the present utility model;
Fig. 7 is wheelchair rearview of the present utility model;
Forward direction axonometric drawing when Fig. 8 is this utility model employing crawler belt driving mode
Fig. 9 is the structural representation of single direction ratchet ratchet of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, this utility model is described in further detail.
Composition graphs 1 to Fig. 9, this utility model comprises seat 1, crawler belt 13, wheels (trailing wheel 4, front-wheel 9), seat levelling gear (leveling small handwheel 22, leveling worm gear case 24, screw rod 12), wheel carry out switching mechanism (wheel carry out switch small handwheel 19, wheel carry out switch worm gear case 18, wheel carry out switch screw rod 2, front-wheel rocking bar 17, trailing wheel rocking bar 20), wheel carries out hybrid power box 36, crawler belt manual and electric switching mechanism 30, control system 21 etc.This utility model has three cover worm and gear box structures, and concrete structure is all the same, and the concrete structure formula that accompanying drawing 3 provides to carry out switching mechanism part to take turns.
Composition graphs 1, Fig. 3, wheel is carried out switching device shifter and is positioned at wheelchair both sides, and switching small handwheel 19, worm screw 56, worm gear 57 are all carried out by taking turns in every side, wheel carries out switching screw rod 2 and rocking bar 17,20 forms, and front and back wheel is separately fixed on two rocking bars.One of them small handwheel is fixed on the side of worm screw, and worm and wheel engages.There is screw thread at worm gear axle center place.Screw rod is fixed on wheelchair frame, and worm gear is meshed together by the screw thread at axle center place and screw rod.Worm and gear is contained in a seal box, and seal box connects two rocking bars near the side of wheelchair seat by a connecting axle, and there is the groove of certain length rocking bar and seal box junction, and when seal box and rocking bar relatively rotate, connecting axle can slide in groove.Carry out switching small handwheel 19 with hands moving runner wheels to be lifted and fall.
Composition graphs 1,2,7, the position that wheel carries out hybrid power box 36 is in the middle of crawler belt and trailing wheel, and is fixed on vehicle frame 60.Driven by motor the 3rd sprocket wheel 6 rotates, and the 3rd sprocket wheel 6 is connected by the second chain 5 with the 4th sprocket wheel 29, thus motor driving wheel group.Driven by motor second sprocket wheel 32 rotates, and the second sprocket wheel 32 is connected by the first chain 38 with the first sprocket wheel 32, thus motor-driven caterpillar tracks.Crawler belt also can be driven by manpower, and manpower rotates small handwheel 3 and drives the 5th sprocket wheel 26, and power passes to the 6th sprocket wheel 28 by the 3rd chain 25 again.
Composition graphs 1, when wheelchair adopts wheels as mobile devices, two motors drive two hinge wheels 4 respectively, and front-wheel 9 is universal wheel, are fixed on support 8, and front-wheel is arranged on rocking bar 17, and rocking bar 17 is arranged on A-frame 10 by axle 16.14 is heel brace, and heel brace is contained on heel brace frame 15.
Composition graphs 4, wheel shoe hybrid power box comprises worm gear 47, worm screw 46, crawler haulage pinion 48, crawler haulage gear wheel 50, wheels drive pinion 39, wheels transmission gear wheel 45 and shift fork 37 and forms.Worm gear 47 worm screw 46 is as high speed level gear, and the large pinion of crawler belt and wheels transmission is as slow speed turbine stage gear.Two pinions are arranged on splined shaft 40.Splined shaft 40 is provided with shift fork 37, shift fork 37 can rotate around splined shaft 40, and pinion 48,39 can be moved by shift fork 37.Crawler haulage gear wheel 50 is arranged on crawler haulage output shaft 49, and wheels transmission gear wheel 45 is arranged on wheels transmission output shaft 43.Wherein 44 is bearing, and 42 is bolt, and 41 is bearing (ball) cover.
Composition graphs 5, the rear side that wheel carries out hybrid power tank wall has two grooves, for the position of fixing shift fork.When being positioned at the groove near seat, crawler haulage size gears meshing, the large pinion of wheels transmission is separated.When being positioned at the groove away from seat, the large pinion of crawler haulage is separated, wheels transmission size gears meshing.
Composition graphs 2,6, in crawler belt manual and electric switching mechanism, the both sides being positioned at crawler driving whell 52 have two jaw clutches respectively.The fixing half-clutch device of clutch is connected with sprocket wheel bolt respectively, and movable half-clutch device is connected by a connecting rod 55, and there is tooth the upside of connecting rod, is similar to tooth bar.The upside being positioned at connecting rod has gear 51 to engage with the tooth on connecting rod 55, and gear 51 is driven by small machine 63.When connecting rod is positioned at inner terminal, being namely in position | during 1|, driven by power sprocket wheel clutch engages, and when connecting rod is positioned at outermost end, is namely in position | and during 2|, manpower drive sprocket clutch engages.When being switched to manpower and driving crawler belt, the single direction ratchet ratchet 58 driven on handwheel 3 axle can be engaged, slide downward during to limit wheelchair stair-climbing.
Composition graphs 1, seat levelling gear principle is identical with Fig. 3, is made up of leveling worm gear case 24, screw rod.One of them leveling small handwheel 22 is fixed on the side of worm screw, and worm and wheel engages.There is screw thread at worm gear axle center place.Worm and gear is contained in a seal box, and screw rod is fixed on wheelchair frame, and worm gear is meshed together by the screw thread at axle center place and screw rod.What be connected with seal box is the cylinder having certain length, and screw rod can embed in cylinder.Screw rod is connected by revolute with vehicle frame, and cylinder is connected with seat by rotating shaft 23 with seat.Rotate small handwheel seal box and can produce relative displacement with screw rod.The overall length of screw rod and cylinder changes, thus the angle of wheelchair seat and horizontal plane changes.
Fig. 8 is that Wheels group arrangement is raised by wheelchair, utilizes crawler attachment as schematic diagram during mobile devices.
Composition graphs 1 to Fig. 7, wheelchair use procedure of the present utility model:
When travelling in smooth-riding surface, adopt wheels exercise style, namely swiveling wheel is carried out wheel in switching mechanism and is carried out switching small handwheel 19, and put down wheels and support wheelchair, crawler belt 13 is lifted.Under wheels enforcement state, can adopt driven by power that manpower also can be adopted to drive.As adopted driven by power, turning wheel carries out shift fork 37 in hybrid power box, and the large pinion of wheels transmission (45,39) is engaged, and the large pinion of crawler haulage (50,48) is separated simultaneously, and motor can drive wheelchair.Wheelchair action is controlled by operation control 21.As adopted manpower to drive, turning wheel carries out shift fork 37 in hybrid power box, the large pinion of wheels transmission (45,39) is separated, turns off power supply simultaneously.Rotate handwheel 27 with hands and can drive wheelchair.
During when stair climbing or on uneven road surface, adopt crawler belt exercise style, namely swiveling wheel carries out small handwheel in switching mechanism, lifts wheels, crawler belt kiss the earth.Under crawler belt enforcement state, can adopt driven by power that manpower also can be adopted to drive.As adopted driven by power, turning wheel carries out shift fork 37 in hybrid power box, and the large pinion of wheels transmission (45,39) is separated, the large pinion of crawler haulage (50,48) engagement simultaneously.Manually organize clutch separation by crawler belt manual and electric switching mechanism again, motor can drive wheelchair.Clutch engagement is manually organized, simultaneously electronic group of clutch separation, powered-down by crawler belt manual and electric switching mechanism.Rotate track drive small handwheel 3 with hands, can wheelchair be driven.
A kind of wheel carries out combination type stair climbing wheelchair.It carries out the module composition such as shifter, wheel shoe hybrid power box, crawler belt manual and electric switching mechanism, control system primarily of seat, crawler belt, set mechanism, two direct current generators, seat levelling gear, wheels.Wheel is carried out switching device shifter and is positioned at wheelchair both sides, and every side is all made up of hand worm screw, worm gear, screw rod and rocking bar, and front and back wheel is separately fixed on two rocking bars.Seat levelling gear is made up of worm and gear, screw rod.Wheel is carried out hybrid power box and is comprised Caterpillar transmission mechanism and wheeled combination drive mechanism, wheel shoe switchover apparatus and shift fork.The switching of crawler belt manual and electric is realized by small machine driven gear tooth bar.This utility model conveniently can realize the switching taking turns shoe two kinds of walking manners, with overcome common wheelchair cannot cat ladder and crawler belt in level walking cornering difficulties and the larger problem of resistance.Crawler belt and wheeled two kinds of move modes all can adopt motor to drive and manpower driving, if under being in and cannot using power-actuated situation, flat pavement running and stair climbing ladder all can be driven by manpower.
This utility model also comprises some architectural features like this:
1, wheel shoe switching mechanism is made up of hand worm screw, worm gear, screw rod and rocking bar, and front and back wheel is separately fixed on two rocking bars.One of them small handwheel is fixed on the side of worm screw, and worm and wheel engages.There is screw thread at worm gear axle center place.Screw rod is fixed on wheelchair frame, and worm gear is meshed together by the screw thread at axle center place and screw rod.Worm and gear is contained in a seal box, and the side of seal box connects two rocking bars by a connecting axle, and there is the groove of certain length rocking bar and seal box junction, and when seal box and rocking bar relatively rotate, connecting axle can slide in groove.Rotate small handwheel with hands wheels to be lifted and fall.
2, wheel shoe hybrid power box comprises worm and gear, crawler haulage pinion, crawler haulage gear wheel, wheels drive pinion, wheels transmission gear wheel and shift fork composition.
3, worm and gear is as high speed level gear, and the large pinion of crawler belt and wheels transmission is as slow speed turbine stage gear.Two pinions are arranged on splined shaft.Splined shaft is provided with shift fork, and shift fork can rotate around splined shaft, and pinion can be moved by shift fork.
4, the rear side of wheel shoe hybrid power tank wall has two grooves, for the position of fixing shift fork.When being positioned at the groove near seat, crawler haulage size gears meshing, the large pinion of wheels transmission is separated.When being positioned at the groove away from seat, the large pinion of crawler haulage is separated, wheels transmission size gears meshing.
5, in crawler belt manual and electric switching mechanism, the both sides being positioned at crawler driving whell have two jaw clutches respectively.The fixing half-clutch device of clutch is connected with sprocket wheel bolt respectively, and movable half-clutch device is connected by a connecting rod, and there is tooth the upside of connecting rod, is similar to tooth bar.The upside being positioned at connecting rod has gear to engage with the tooth on connecting rod, and gear is driven by small machine.When connecting rod is positioned at outermost end, manpower drive sprocket clutch engages, driven by power sprocket wheel clutch separation.During manpower drive sprocket, crawler driving whell can depart from motor-driven drive sprockets and rotate.When connecting rod is positioned at inner terminal, driven by power sprocket wheel clutch engages, manpower drive sprocket clutch separation.During driven by power sprocket wheel, crawler driving whell can depart from manpower drive sprocket and rotate.When being switched to manpower and driving crawler belt, can engage driving the ratchet on hand wheel shaft with the ratchet be fixed on support, slide downward during to limit wheelchair stair-climbing.
6, seat levelling gear is made up of worm and gear, screw rod.One of them small handwheel is fixed on the side of worm screw, and worm and wheel engages.There is screw thread at worm gear axle center place.Worm and gear is contained in a seal box, and screw rod is fixed on wheelchair frame, and worm gear is meshed together by the screw thread at axle center place and screw rod.What be connected with seal box is the cylinder having certain length, and screw rod can embed in cylinder.Screw rod is connected by revolute with vehicle frame, and cylinder is connected by revolute with seat.Rotate small handwheel seal box and can produce relative displacement with screw rod.The overall length of screw rod and cylinder changes, thus the angle of wheelchair seat and horizontal plane changes.
A kind of wheel carries out combination type stair climbing wheelchair, and primarily of wheelchair seat, crawler belt, set mechanism, wheel carries out switching mechanism, wheel carries out the module compositions such as hybrid power box, crawler belt manual and electric switching mechanism, seat levelling gear, control system.Wheel is carried out switching device shifter and is positioned at wheelchair both sides, and every side is all made up of hand worm screw, worm gear, screw rod and rocking bar, and front and back wheel is separately fixed on two rocking bars.Seat levelling gear is made up of worm and gear, screw rod.Wheel is carried out hybrid power box and is comprised Caterpillar transmission mechanism and wheeled combination drive mechanism, wheel shoe switchover apparatus and shift fork.Crawler belt manual and electric switches by small machine driven gear tooth bar, and the half-clutch device of rack drives dental inlay realizes separation and the joint of clutch.
Wheel is carried out switching mechanism and is made up of hand worm screw, worm gear, screw rod and rocking bar, and front and back wheel is separately fixed on two rocking bars.One of them small handwheel is fixed on the side of worm screw, and worm and wheel engages.There is screw thread at worm gear axle center place.Screw rod is fixed on wheelchair frame, and worm gear is meshed together by the screw thread at axle center place and screw rod.
Often overlapping worm-and-wheel gear is all contained in a seal box, and the side of seal box connects two rocking bars by a connecting axle, and there is the groove of certain length rocking bar and seal box junction, and when seal box and rocking bar relatively rotate, connecting axle can slide in groove.
Wheel is carried out hybrid power box and is comprised worm and gear, crawler haulage pinion, crawler haulage gear wheel, wheels drive pinion, wheels transmission gear wheel and shift fork composition.Worm and gear is as high speed level gear, and the large pinion of crawler belt and wheels transmission is as slow speed turbine stage gear.Two pinions are arranged on splined shaft.Splined shaft is provided with shift fork, and shift fork can rotate around splined shaft, can move pinion simultaneously.
The rear side that wheel carries out hybrid power tank wall has two grooves, for the position of fixing shift fork.When being positioned at the groove near seat, crawler haulage size gears meshing, the large pinion of wheels transmission is separated.When being positioned at the groove away from seat, the large pinion of crawler haulage is separated, wheels transmission size gears meshing.
The both sides that crawler belt manual and electric switching mechanism is positioned at crawler driving whell have two jaw clutches respectively.The fixing half-clutch device of clutch is connected with sprocket wheel bolt respectively, and movable half-clutch device is connected by a connecting rod, and there is tooth the upside of connecting rod, is similar to tooth bar.The upside being positioned at connecting rod has gear to engage with the tooth on connecting rod, and gear is driven by small machine.When connecting rod is positioned at outermost end, manpower drive sprocket clutch engages, and when connecting rod is positioned at inner terminal, driven by power sprocket wheel clutch engages.When being switched to manpower and driving crawler belt, can engage driving the ratchet on hand wheel shaft with the ratchet be fixed on support, slide downward during to limit wheelchair stair-climbing.
Seat levelling gear is made up of worm and gear, screw rod.One of them small handwheel is fixed on the side of worm screw, and worm and wheel engages.There is screw thread at worm gear axle center place.Worm and gear is contained in a seal box, and screw rod is fixed on wheelchair frame, and worm gear is meshed together by the screw thread at axle center place and screw rod.What be connected with seal box is the cylinder having certain length, and screw rod can embed in cylinder.Screw rod is connected by revolute with vehicle frame, and cylinder is connected by revolute with seat.Rotate small handwheel seal box and can produce relative displacement with screw rod.The overall length of screw rod and cylinder changes, thus the angle of wheelchair seat and horizontal plane changes.
Wheelchair use procedure of the present utility model:
When travelling in smooth-riding surface, adopt wheels exercise style, namely swiveling wheel carries out small handwheel in switching mechanism, and put down wheels and support wheelchair, crawler belt is lifted.Under wheels enforcement state, can adopt driven by power that manpower also can be adopted to drive.As adopted driven by power, turning wheel carries out shift fork in hybrid power box, makes wheels transmission size gears meshing, and the large pinion of crawler haulage is separated simultaneously, and motor can drive wheelchair rear wheel.Wheelchair action is controlled by operation control.As adopted manpower to drive, turning wheel carries out shift fork in hybrid power box, the large pinion of wheels transmission is separated, turns off power supply simultaneously.Rotate trailing wheel with hands and can drive wheelchair.
During when stair climbing or on uneven road surface, adopt crawler belt exercise style, namely swiveling wheel carries out small handwheel in switching mechanism, lifts wheels, crawler belt kiss the earth.Under crawler belt enforcement state, can adopt driven by power that manpower also can be adopted to drive.As adopted driven by power, turning wheel carries out shift fork in hybrid power box, the large pinion of wheels transmission is separated, simultaneously crawler haulage size gears meshing.Manually organize clutch separation by crawler belt manual and electric switching mechanism again, motor can drive wheelchair.Clutch engagement is manually organized, simultaneously electronic group of clutch separation, powered-down by crawler belt manual and electric switching mechanism.Rotate track drive small handwheel with hands, can wheelchair be driven.
Claims (2)
1. wheel carries out a combination type stair climbing wheelchair, comprises vehicle frame (60), seat (1), heel brace frame (15), heel brace (14), front-wheel (9), trailing wheel (4), crawler belt (13), track frame (11), seat levelling gear, wheel carries out switching mechanism, wheel carries out hybrid power box and control system, trailing wheel (4) is also provided with handwheel (27), it is characterized in that: described seat levelling gear comprises the rotating shaft (23) be arranged on below seat (1) front end, suit cylinder on the rotary shaft, the leveling worm gear case (24) be connected with cylinder lower end, leveling worm gear in leveling worm gear case (24) is set, with the leveling worm screw of leveling worm gear, the leveling small handwheel (22) be connected with leveling worm end, the center of described leveling worm gear is provided with female thread and coordinates with the external screw thread of linkage levelling screw, the upper end of described linkage levelling screw is embedded in described cylinder, and the lower end of described linkage levelling screw is arranged on the fixed bar (62) arranged between two track frames and above also can rotates around fixed bar (62),
Described wheel carries out the both sides that switching mechanism is arranged on seat, each shoe switching mechanism of taking turns comprises the front-wheel rocking bar (17) be connected with front-wheel by support (8), the trailing wheel rocking bar (20) hinged with front-wheel rocking bar (17) end, the end of trailing wheel rocking bar (20) connects with the end of the rotating shaft of corresponding trailing wheel (4), the centre position of front-wheel rocking bar (17) is connected with A-frame (10) by axle (16), A-frame (10) and vehicle frame (60) are connected, front-wheel rocking bar (17) is provided with to take turns to carry out with one end of trailing wheel rocking bar (20) hinged rotating shaft and switches small handwheel (19), front-wheel rocking bar (17) is fixed with to take turns to carry out with the other end of trailing wheel rocking bar (20) hinged rotating shaft and switches worm screw, wheel is carried out to switch worm screw and take turns to carry out and is switched worm gear, wheel shoe switching worm gear is arranged on wheel shoe by screw thread and switches on screw rod (2), lower end and the bracing frame (7) of wheel shoe switching screw rod (2) are connected, wheel is carried out and is switched worm screw and wheel and carry out and switch worm gear and form to take turns to carry out and switch worm gear case (18),
Described shoe hybrid power box (36) of taking turns has two and is separately positioned on the vehicle frame (60) between corresponding crawler belt and trailing wheel, each shoe hybrid power box of taking turns comprises the crawler haulage output shaft (49) and wheels transmission output shaft (43) that are controlled by shift fork (37), crawler haulage output shaft (49) is provided with the first sprocket wheel (32), the inner side of the rotating shaft of crawler belt (13) is provided with the second sprocket wheel (31), the first chain (38) is provided with between first sprocket wheel (32) and the second sprocket wheel (31), wheels transmission output shaft (43) is provided with the 3rd sprocket wheel (6), the rotating shaft of trailing wheel (4) is provided with the 4th sprocket wheel (29), the second chain (5) is provided with between 3rd sprocket wheel (6) and the 4th sprocket wheel (29),
The handrail of seat is provided be connected with control system and control the operation control (21) of hybrid power box.
2. one wheel according to claim 1 carries out combination type stair climbing wheelchair, it is characterized in that: also comprise two clutches that manpower drives pedrail mechanism and is arranged in the rotating shaft of crawler belt (13), described manpower drives pedrail mechanism to comprise the power transmission shaft (61) be arranged on vehicle frame (60), by there being the 5th sprocket wheel (26) on power transmission shaft (61), the outside of the rotating shaft of crawler belt (13) is provided with the 6th sprocket wheel (28), the 3rd chain (25) is provided with between 5th sprocket wheel (26) and the 6th sprocket wheel (28), the end of described power transmission shaft (61) is provided with track drive small handwheel (3), (61) are also provided with single direction ratchet ratchet to described power transmission shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520722102.4U CN205073156U (en) | 2015-09-17 | 2015-09-17 | Stair wheelchair is climbed to wheel -track combination formula |
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| CN201520722102.4U CN205073156U (en) | 2015-09-17 | 2015-09-17 | Stair wheelchair is climbed to wheel -track combination formula |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201515A1 (en) * | 2017-05-05 | 2018-11-08 | 常熟市平方轮椅有限公司 | Climbing electric wheelchair |
| CN108995741A (en) * | 2018-08-14 | 2018-12-14 | 冯瑞新 | A kind of electric vehicle of climbing stairs |
| CN110251107A (en) * | 2019-06-25 | 2019-09-20 | 浙江大学 | A kind of device that wrist blood pressure state continuously changes and its detection method |
| CN110680631A (en) * | 2019-11-11 | 2020-01-14 | 缙云都画医疗科技有限公司 | Device for disabled person to use to go upstairs quickly |
-
2015
- 2015-09-17 CN CN201520722102.4U patent/CN205073156U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201515A1 (en) * | 2017-05-05 | 2018-11-08 | 常熟市平方轮椅有限公司 | Climbing electric wheelchair |
| CN108995741A (en) * | 2018-08-14 | 2018-12-14 | 冯瑞新 | A kind of electric vehicle of climbing stairs |
| CN110251107A (en) * | 2019-06-25 | 2019-09-20 | 浙江大学 | A kind of device that wrist blood pressure state continuously changes and its detection method |
| CN110680631A (en) * | 2019-11-11 | 2020-01-14 | 缙云都画医疗科技有限公司 | Device for disabled person to use to go upstairs quickly |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20170917 |